fix: memory leak in session removal - close MCP server properly (#471)

- Add close() method to N8NDocumentationMCPServer that:
  - Calls server.close() (MCP SDK cleanup)
  - Clears internal cache
  - Nullifies service references to help GC
- Update removeSession() to call server.close() before releasing references

Root cause: removeSession() deleted server from map but didn't call cleanup
Evidence: Production server memory grew ~1GB in 43 minutes (10% to 35%)

Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/release.yml

@@ -311,14 +311,14 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
-
+      
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: 'npm'
           registry-url: 'https://registry.npmjs.org'
-
+      
       - name: Install dependencies
         run: npm ci
       
@@ -396,7 +396,7 @@ jobs:
             npm publish --access public
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
-
+      
       - name: Clean up
         if: always()
         run: rm -rf npm-publish-temp

CHANGELOG.md

@@ -7,411 +7,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [2.31.5] - 2026-01-02
-
-### Added
-
-**MCP Tool Annotations (PR #512)**
-
-Added MCP tool annotations to all 20 tools following the [MCP specification](https://spec.modelcontextprotocol.io/specification/2025-03-26/server/tools/#annotations). These annotations help AI assistants understand tool behavior and capabilities.
-
-**Annotations added:**
-- `title`: Human-readable name for each tool
-- `readOnlyHint`: True for tools that don't modify state (11 tools)
-- `destructiveHint`: True for delete operations (3 tools)
-- `idempotentHint`: True for operations that produce same result when called repeatedly (14 tools)
-- `openWorldHint`: True for tools accessing external n8n API (13 tools)
-
-**Documentation tools** (7): All marked `readOnlyHint=true`, `idempotentHint=true`
-- `tools_documentation`, `search_nodes`, `get_node`, `validate_node`, `get_template`, `search_templates`, `validate_workflow`
-
-**Management tools** (13): All marked `openWorldHint=true`
-- Read-only: `n8n_get_workflow`, `n8n_list_workflows`, `n8n_validate_workflow`, `n8n_health_check`
-- Idempotent updates: `n8n_update_full_workflow`, `n8n_update_partial_workflow`, `n8n_autofix_workflow`
-- Destructive: `n8n_delete_workflow`, `n8n_executions` (delete action), `n8n_workflow_versions` (delete/truncate)
-
-## [2.31.4] - 2026-01-02
-
-### Fixed
-
-**Workflow Data Mangled During Serialization: snake_case Conversion (Issue #517)**
-
-Fixed a critical bug where workflow mutation data was corrupted during serialization to Supabase, making 98.9% of collected workflow data invalid for n8n API operations.
-
-**Problem:**
-The `toSnakeCase()` function in `batch-processor.ts` was applied **recursively** to the entire mutation object, including nested workflow data that should be preserved exactly as-is:
-
-- **Connection keys mangled**: Node names like `"Webhook"` became `"_webhook"`, `"AI Agent"` became `"_a_i _agent"`
-- **Node field names mangled**: n8n camelCase fields like `typeVersion`, `webhookId`, `onError` became `type_version`, `webhook_id`, `on_error`
-
-**Root Cause:**
-```javascript
-// Old code - recursive conversion corrupted nested data
-result[snakeKey] = toSnakeCase(obj[key]); // WRONG
-```
-
-**Solution:**
-Replaced recursive `toSnakeCase()` with selective `mutationToSupabaseFormat()` that:
-- Converts **only** top-level field names to snake_case (for Supabase columns)
-- Preserves all nested data (workflow JSON, operations, validations) **exactly as-is**
-
-```javascript
-// New code - preserves nested workflow structure
-for (const [key, value] of Object.entries(mutation)) {
-  result[keyToSnakeCase(key)] = value; // Value preserved as-is
-}
-```
-
-**Impact:**
-- Workflow mutation data now maintains n8n API compatibility
-- Deployability rate improved from ~21% to ~68%
-- Added 3 regression tests to prevent future occurrences
-
-## [2.31.3] - 2025-12-26
-
-### Fixed
-
-**Documentation Bug: Connection Keys Say "Node IDs" but Require "Node Names" (Issue #510)**
-
-Fixed documentation that incorrectly stated connection keys should be "node IDs" when n8n actually requires "node names".
-
-**Problem:**
-The `n8n_create_workflow` documentation and examples showed using node IDs (e.g., `"webhook_1"`) as connection keys, but the validator requires node names (e.g., `"Webhook"`). This caused workflow creation failures and contributed to low success rates for AI-generated workflows.
-
-**Changes:**
-- Updated `tools-n8n-manager.ts` parameter description: "Keys are source node names (the name field, not id)"
-- Updated `n8n-create-workflow.ts` documentation: "Keys are source node names (not IDs)"
-- Fixed example to use `"Webhook"` and `"Slack"` instead of `"webhook_1"` and `"slack_1"`
-- Clarified `get-template.ts` return description
-
-**Before (incorrect):**
-```javascript
-connections: {
-  "webhook_1": { "main": [[{node: "slack_1", ...}]] }  // WRONG
-}
-```
-
-**After (correct):**
-```javascript
-connections: {
-  "Webhook": { "main": [[{node: "Slack", ...}]] }  // CORRECT
-}
-```
-
-**Impact:**
-- AI models following documentation will now generate valid workflows
-- Clear distinction between node `id` (internal identifier) and `name` (connection key)
-- No breaking changes - validator behavior unchanged
-
-## [2.31.2] - 2025-12-24
-
-### Changed
-
-- Updated n8n from 2.0.2 to 2.1.4
-- Updated n8n-core from 2.0.1 to 2.1.3
-- Updated n8n-workflow from 2.0.1 to 2.1.1
-- Updated @n8n/n8n-nodes-langchain from 2.0.1 to 2.1.3
-- Rebuilt node database with 540 nodes (434 from n8n-nodes-base, 106 from @n8n/n8n-nodes-langchain)
-- Refreshed template database with 2,737 workflow templates from n8n.io
-
-## [2.31.1] - 2025-12-23
-
-### Fixed
-
-**mcpTrigger Nodes No Longer Incorrectly Flagged as "Disconnected" (Issue #503)**
-
-Fixed a validation bug where `mcpTrigger` nodes were incorrectly flagged as "disconnected nodes" when using `n8n_update_partial_workflow` or `n8n_update_full_workflow`. This blocked ALL updates to MCP server workflows.
-
-**Root Cause:**
-The `validateWorkflowStructure()` function only checked `main` connections when building the connected nodes set, ignoring AI connection types (`ai_tool`, `ai_languageModel`, `ai_memory`, `ai_embedding`, `ai_vectorStore`). Additionally, trigger nodes were only checked for outgoing connections, but `mcpTrigger` only receives inbound `ai_tool` connections.
-
-**Changes:**
-- Extended connection validation to check all 7 connection types (main, error, ai_tool, ai_languageModel, ai_memory, ai_embedding, ai_vectorStore)
-- Updated trigger node validation to accept either outgoing OR inbound connections
-- Added 7 new tests covering all AI connection types
-
-**Impact:**
-- MCP server workflows can now be updated, renamed, and deactivated normally
-- All `n8n_update_*` operations work correctly for AI workflows
-- No breaking changes for existing workflows
-
-## [2.31.0] - 2025-12-23
-
-### Added
-
-**New `error` Mode for Execution Debugging**
-
-Added a new `mode='error'` option to `n8n_executions` action=get that's optimized for AI agents debugging workflow failures. This mode provides intelligent error extraction with 80-99% token savings compared to `mode='full'`.
-
-**Key Features:**
-
-- **Error Analysis**: Extracts error message, type, node name, and relevant parameters
-- **Upstream Context**: Samples input data from the node feeding into the error node (configurable limit)
-- **Execution Path**: Shows the node execution sequence from trigger to error
-- **AI Suggestions**: Pattern-based fix suggestions for common errors (missing fields, auth issues, rate limits, etc.)
-- **Workflow Fetch**: Optionally fetches workflow structure for accurate upstream detection
-
-**New Parameters for `mode='error'`:**
-
-- `errorItemsLimit` (default: 2) - Number of sample items from upstream node
-- `includeStackTrace` (default: false) - Include full vs truncated stack trace
-- `includeExecutionPath` (default: true) - Include node execution path
-- `fetchWorkflow` (default: true) - Fetch workflow for accurate upstream detection
-
-**Token Efficiency:**
-
-| Execution Size | Full Mode | Error Mode | Savings |
-|----------------|-----------|------------|---------|
-| 11 items | ~11KB | ~3KB | 73% |
-| 1001 items | ~354KB | ~3KB | 99% |
-
-**AI Suggestion Patterns Detected:**
-
-- Missing required fields
-- Authentication/authorization issues
-- Rate limiting
-- Network/connection errors
-- Invalid JSON format
-- Missing data fields
-- Type mismatches
-- Timeouts
-- Permission denied
-
-**Usage Examples:**
-
-```javascript
-// Basic error debugging
-n8n_executions({action: "get", id: "exec_123", mode: "error"})
-
-// With more sample data
-n8n_executions({action: "get", id: "exec_123", mode: "error", errorItemsLimit: 5})
-
-// With full stack trace
-n8n_executions({action: "get", id: "exec_123", mode: "error", includeStackTrace: true})
-```
-
-## [2.30.2] - 2025-12-21
-
-### Fixed
-
-**Restored Template Database**
-
-Fixed missing templates in the database by restoring 2,768 workflow templates from git history while preserving compatibility with latest n8n 2.0.2 node definitions.
-
-**Key Changes:**
-- Restored templates table with 2,768 curated workflow templates
-- Updated nodes table schema to include `is_tool_variant`, `has_tool_variant`, and `tool_variant_of` columns
-- Database now contains 803 nodes (updated for n8n 2.0.2) and 2,768 templates
-
-## [2.30.1] - 2025-12-17
-
-### Added
-
-**Support for `_cnd` Conditional Operators in displayOptions Validation**
-
-Added comprehensive support for n8n's `_cnd` conditional operators in displayOptions, enabling proper validation of versioned nodes like Execute Workflow Trigger.
-
-**Supported Operators (12 total):**
-
-- `eq` - Equal
-- `not` - Not equal
-- `gte` - Greater than or equal
-- `lte` - Less than or equal
-- `gt` - Greater than
-- `lt` - Less than
-- `between` - Range check (from/to)
-- `startsWith` - String prefix match
-- `endsWith` - String suffix match
-- `includes` - String contains
-- `regex` - Regular expression match
-- `exists` - Field existence check
-
-**Key Features:**
-
-- **Version-Based Visibility**: Properties with `displayOptions: { show: { '@version': [{ _cnd: { gte: 1.1 } }] } }` are now correctly evaluated
-- **No More False Positives**: Eliminates incorrect "not visible with current settings" warnings for versioned nodes
-- **Full Operator Support**: All 12 n8n conditional operators implemented
-- **Backward Compatible**: Plain value matching continues to work unchanged
-- **Hardened Operators**: Regex and between operators include validation for edge cases
-
-**Files Changed:**
-
-- `src/services/config-validator.ts` - Added `evaluateCondition()`, `valueMatches()`, updated `isPropertyVisible()` to public
-- `src/mcp/server.ts` - Pass `@version` to validators in `validateNodeConfig()` and `validateNodeMinimal()`
-- `src/services/workflow-validator.ts` - Pass `@version` in workflow validation
-- `tests/unit/services/config-validator-cnd.test.ts` - **NEW** 47 unit tests for all operators including edge cases
-
-### Fixed
-
-**n8n 2.0+ Execute Workflow Trigger Activation**
-
-Fixed a breaking change introduced in n8n 2.0 where Execute Workflow Trigger workflows must now be activated to work.
-
-**What Changed:**
-
-- `executeWorkflowTrigger` is now recognized as an activatable trigger
-- Removed outdated validation that blocked active workflows with only Execute Workflow Trigger
-- Updated error messages to include executeWorkflowTrigger in the list of valid triggers
-
-**Files Changed:**
-
-- `src/utils/node-type-utils.ts` - Updated `isActivatableTrigger()` to return `true` for executeWorkflowTrigger
-- `src/services/n8n-validation.ts` - Removed specific check blocking Execute Workflow Trigger
-- `src/services/workflow-diff-engine.ts` - Updated error message
-- `tests/unit/utils/node-type-utils.test.ts` - Updated tests for n8n 2.0+ behavior
-
-**Conceived by Romuald Czlonkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
-## [2.30.0] - 2025-12-15
-
-### Changed
-
-**Major n8n 2.0 Update**
-
-Updated to n8n 2.0, a major version upgrade with significant improvements.
-
-**Dependency Updates:**
-
-- n8n: 1.123.4 → 2.0.2
-- n8n-core: 1.122.1 → 2.0.1
-- n8n-workflow: 1.120.0 → 2.0.1
-- @n8n/n8n-nodes-langchain: 1.122.1 → 2.0.1
-
-**Database:**
-
-- Rebuilt node database with 541 nodes (435 from n8n-nodes-base, 106 from @n8n/n8n-nodes-langchain)
-- Updated README badge with new n8n version
-
-**Conceived by Romuald Członkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
-## [2.29.2] - 2025-12-12
-
-### Added
-
-**Tool Variant Validation and Auto-Fix**
-
-Added validation to detect when base nodes are incorrectly used as AI tools when Tool variants should be used instead, with automatic fix capability.
-
-**Key Features:**
-
-- **New Validation**: `validateAIToolSource()` detects base nodes (e.g., `n8n-nodes-base.supabase`) connected via `ai_tool` output when a Tool variant exists
-- **Clear Error Messages**: Returns actionable error with `WRONG_NODE_TYPE_FOR_AI_TOOL` code explaining which Tool variant to use
-- **Auto-Fix Support**: New `tool-variant-correction` fix type in `n8n_autofix_workflow` automatically replaces base nodes with their Tool variants
-- **High Confidence Fixes**: Tool variant corrections are marked as high confidence since the correct type is known
-
-**New Utility Method:**
-
-- `NodeTypeNormalizer.toWorkflowFormat()` - Converts database format (short) back to n8n API format (full)
-
-**Test Coverage:**
-
-- 83 new unit tests covering Tool variant validation, auto-fix, and type normalization
-- Tests for edge cases: langchain tools, unknown nodes, multiple errors, community nodes
-
-**Files Changed:**
-
-- `src/services/workflow-validator.ts` - Added `validateAIToolSource()` method
-- `src/services/workflow-auto-fixer.ts` - Added `tool-variant-correction` fix type
-- `src/utils/node-type-normalizer.ts` - Added `toWorkflowFormat()` method
-- `tests/unit/services/workflow-validator-tool-variants.test.ts` - **NEW** 12 tests
-- `tests/unit/services/workflow-auto-fixer-tool-variants.test.ts` - **NEW** 13 tests
-- `tests/unit/utils/node-type-normalizer.test.ts` - Added 19 tests for `toWorkflowFormat()`
-
-**Conceived by Romuald Członkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
-## [2.29.1] - 2025-12-12
-
-### Added
-
-**Tool Variant Support for AI Agent Integration**
-
-Added comprehensive support for n8n Tool variants - specialized node versions created for AI Agent tool connections (e.g., `nodes-base.supabaseTool` from `nodes-base.supabase`).
-
-**Key Features:**
-
-- **266 Tool Variants Generated**: During database rebuild, Tool variants are automatically created for all nodes with `usableAsTool: true`
-- **Bidirectional Cross-References**:
-  - Base nodes show `toolVariantInfo.hasToolVariant: true` with guidance to use Tool variant
-  - Tool variants show `toolVariantInfo.isToolVariant: true` with reference to base node
-- **Clear AI Guidance**: Contextual messages help AI assistants choose the correct node type:
-  - Base node guidance: "To use this node with AI Agents, use the Tool variant: nodes-base.supabaseTool"
-  - Tool variant guidance: "This is the Tool variant for AI Agent integration"
-- **Tool Description Property**: Tool variants include `toolDescription` property for AI context
-- **ai_tool Output Type**: Tool variants output `ai_tool` instead of `main` for proper Agent connections
-
-**Database Schema Changes:**
-
-- Added `is_tool_variant` column (1 if Tool variant)
-- Added `tool_variant_of` column (base node type reference)
-- Added `has_tool_variant` column (1 if base node has Tool variant)
-- Added indexes for efficient Tool variant queries
-
-**Files Changed:**
-
-- `src/database/schema.sql` - New columns and indexes
-- `src/parsers/node-parser.ts` - Extended ParsedNode interface
-- `src/services/tool-variant-generator.ts` - **NEW** Tool variant generation service
-- `src/database/node-repository.ts` - Store/retrieve Tool variant fields
-- `src/scripts/rebuild.ts` - Generate Tool variants during rebuild
-- `src/mcp/server.ts` - Add `toolVariantInfo` to get_node responses
-
-**Conceived by Romuald Członkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
-## [2.29.0] - 2025-12-09
-
-### Performance
-
-**Token-Efficient Workflow Tool Responses (#479)**
-
-Optimized 4 workflow management tools to return minimal responses instead of full workflow objects, reducing token usage by 75-90%:
-
-- **n8n_update_partial_workflow**: Returns `{id, name, active, nodeCount, operationsApplied}` instead of full workflow
-- **n8n_create_workflow**: Returns `{id, name, active, nodeCount}` instead of full workflow
-- **n8n_update_full_workflow**: Returns `{id, name, active, nodeCount}` instead of full workflow
-- **n8n_delete_workflow**: Returns `{id, name, deleted: true}` instead of full deleted workflow
-
-**Impact**:
-- ~75-90% reduction in response token usage per operation
-- Messages now guide AI agents to use `n8n_get_workflow` with mode 'structure' if verification needed
-- No functional changes - full workflow data still available via `n8n_get_workflow`
-
-**Files Modified**:
-- `src/mcp/handlers-workflow-diff.ts` - Optimized partial update response
-- `src/mcp/handlers-n8n-manager.ts` - Optimized create, full update, and delete responses
-- `src/mcp/tool-docs/workflow_management/*.ts` - Updated documentation
-
-**Conceived by Romuald Członkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
-## [2.28.9] - 2025-12-08
-
-### Dependencies
-
-**Updated n8n to 1.123.4**
-
-- Updated n8n from 1.122.4 to 1.123.4
-- Updated n8n-core from 1.121.1 to 1.122.1
-- Updated n8n-workflow from 1.119.1 to 1.120.0
-- Updated @n8n/n8n-nodes-langchain from 1.121.1 to 1.122.1
-- Rebuilt node database with 545 nodes (439 from n8n-nodes-base, 106 from @n8n/n8n-nodes-langchain)
-- Updated README badge with new n8n version
-
-**Conceived by Romuald Członkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
-## [2.28.8] - 2025-12-07
-
-### Bug Fixes
-
-**Multi-tenant: handleValidateWorkflow missing context parameter (#474)**
-
-Fixed `n8n_validate_workflow` tool failing in multi-tenant mode with error:
-`"n8n API not configured. Please set N8N_API_URL and N8N_API_KEY environment variables."`
-
-- **Root Cause**: `handleValidateWorkflow` called `handleGetWorkflow` without passing the `context` parameter
-- **Impact**: Multi-tenant deployments could not use the `n8n_validate_workflow` tool
-- **Solution**: Pass `context` parameter to `handleGetWorkflow` call (line 987)
-
-**Conceived by Romuald Członkowski - [AiAdvisors](https://www.aiadvisors.pl/en)**
-
 ## [2.28.7] - 2025-12-05
 
 ### Bug Fixes

README.md

@@ -5,7 +5,7 @@
 [![npm version](https://img.shields.io/npm/v/n8n-mcp.svg)](https://www.npmjs.com/package/n8n-mcp)
 [![codecov](https://codecov.io/gh/czlonkowski/n8n-mcp/graph/badge.svg?token=YOUR_TOKEN)](https://codecov.io/gh/czlonkowski/n8n-mcp)
 [![Tests](https://img.shields.io/badge/tests-3336%20passing-brightgreen.svg)](https://github.com/czlonkowski/n8n-mcp/actions)
-[![n8n version](https://img.shields.io/badge/n8n-2.1.4-orange.svg)](https://github.com/n8n-io/n8n)
+[![n8n version](https://img.shields.io/badge/n8n-1.122.4-orange.svg)](https://github.com/n8n-io/n8n)
 [![Docker](https://img.shields.io/badge/docker-ghcr.io%2Fczlonkowski%2Fn8n--mcp-green.svg)](https://github.com/czlonkowski/n8n-mcp/pkgs/container/n8n-mcp)
 [![Deploy on Railway](https://railway.com/button.svg)](https://railway.com/deploy/n8n-mcp?referralCode=n8n-mcp)
 

dist/database/node-repository.d.ts

@@ -15,10 +15,6 @@ export declare class NodeRepository {
     getAllNodes(limit?: number): any[];
     getNodeCount(): number;
     getAIToolNodes(): any[];
-    getToolVariant(baseNodeType: string): any | null;
-    getBaseNodeForToolVariant(toolNodeType: string): any | null;
-    getToolVariants(): any[];
-    getToolVariantCount(): number;
     getNodesByPackage(packageName: string): any[];
     searchNodeProperties(nodeType: string, query: string, maxResults?: number): any[];
     private parseNodeRow;

dist/database/node-repository.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"node-repository.d.ts","sourceRoot":"","sources":["../../src/database/node-repository.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,eAAe,EAAE,MAAM,oBAAoB,CAAC;AACrD,OAAO,EAAE,UAAU,EAAE,MAAM,wBAAwB,CAAC;AACpD,OAAO,EAAE,oBAAoB,EAAE,MAAM,oCAAoC,CAAC;AAG1E,qBAAa,cAAc;IACzB,OAAO,CAAC,EAAE,CAAkB;gBAEhB,WAAW,EAAE,eAAe,GAAG,oBAAoB;IAY/D,QAAQ,CAAC,IAAI,EAAE,UAAU,GAAG,IAAI;IAoChC,OAAO,CAAC,QAAQ,EAAE,MAAM,GAAG,GAAG;IA2B9B,UAAU,IAAI,GAAG,EAAE;IAgBnB,OAAO,CAAC,aAAa;IASrB,UAAU,CAAC,IAAI,EAAE,UAAU,GAAG,IAAI;IAIlC,aAAa,CAAC,QAAQ,EAAE,MAAM,GAAG,GAAG;IAIpC,kBAAkB,CAAC,QAAQ,EAAE,MAAM,GAAG,GAAG,EAAE;IAqB3C,WAAW,CAAC,KAAK,EAAE,MAAM,EAAE,IAAI,GAAE,IAAI,GAAG,KAAK,GAAG,OAAc,EAAE,KAAK,GAAE,MAAW,GAAG,GAAG,EAAE;IAwC1F,WAAW,CAAC,KAAK,CAAC,EAAE,MAAM,GAAG,GAAG,EAAE;IAUlC,YAAY,IAAI,MAAM;IAKtB,cAAc,IAAI,GAAG,EAAE;IAIvB,iBAAiB,CAAC,WAAW,EAAE,MAAM,GAAG,GAAG,EAAE;IAS7C,oBAAoB,CAAC,QAAQ,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,EAAE,UAAU,GAAE,MAAW,GAAG,GAAG,EAAE;IAmCrF,OAAO,CAAC,YAAY;IAyBpB,iBAAiB,CAAC,QAAQ,EAAE,MAAM,EAAE,QAAQ,CAAC,EAAE,MAAM,GAAG,GAAG,EAAE;IAmD7D,gBAAgB,CAAC,QAAQ,EAAE,MAAM,GAAG,GAAG,EAAE;IAmBzC,wBAAwB,CAAC,QAAQ,EAAE,MAAM,EAAE,QAAQ,EAAE,MAAM,GAAG,GAAG,EAAE;IAyBnE,gBAAgB,IAAI,GAAG,CAAC,MAAM,EAAE,GAAG,EAAE,CAAC;IAiBtC,eAAe,IAAI,GAAG,CAAC,MAAM,EAAE,GAAG,EAAE,CAAC;IAiBrC,uBAAuB,CAAC,QAAQ,EAAE,MAAM,GAAG,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC;IAwB9D,8BAA8B,CAAC,QAAQ,EAAE,MAAM,EAAE,QAAQ,CAAC,EAAE,MAAM,GAAG,MAAM,GAAG,SAAS;IAuDvF,eAAe,CAAC,WAAW,EAAE;QAC3B,QAAQ,EAAE,MAAM,CAAC;QACjB,OAAO,EAAE,MAAM,CAAC;QAChB,WAAW,EAAE,MAAM,CAAC;QACpB,WAAW,EAAE,MAAM,CAAC;QACpB,WAAW,CAAC,EAAE,MAAM,CAAC;QACrB,QAAQ,CAAC,EAAE,MAAM,CAAC;QAClB,YAAY,CAAC,EAAE,OAAO,CAAC;QACvB,gBAAgB,CAAC,EAAE,GAAG,CAAC;QACvB,UAAU,CAAC,EAAE,GAAG,CAAC;QACjB,mBAAmB,CAAC,EAAE,GAAG,CAAC;QAC1B,OAAO,CAAC,EAAE,GAAG,CAAC;QACd,iBAAiB,CAAC,EAAE,MAAM,CAAC;QAC3B,eAAe,CAAC,EAAE,GAAG,EAAE,CAAC;QACxB,oBAAoB,CAAC,EAAE,MAAM,EAAE,CAAC;QAChC,eAAe,CAAC,EAAE,MAAM,EAAE,CAAC;QAC3B,UAAU,CAAC,EAAE,IAAI,CAAC;KACnB,GAAG,IAAI;IAkCR,eAAe,CAAC,QAAQ,EAAE,MAAM,GAAG,GAAG,EAAE;IAexC,oBAAoB,CAAC,QAAQ,EAAE,MAAM,GAAG,GAAG,GAAG,IAAI;IAgBlD,cAAc,CAAC,QAAQ,EAAE,MAAM,EAAE,OAAO,EAAE,MAAM,GAAG,GAAG,GAAG,IAAI;IAe7D,kBAAkB,CAAC,UAAU,EAAE;QAC7B,QAAQ,EAAE,MAAM,CAAC;QACjB,WAAW,EAAE,MAAM,CAAC;QACpB,SAAS,EAAE,MAAM,CAAC;QAClB,YAAY,EAAE,MAAM,CAAC;QACrB,UAAU,EAAE,OAAO,GAAG,SAAS,GAAG,SAAS,GAAG,cAAc,GAAG,qBAAqB,GAAG,iBAAiB,CAAC;QACzG,UAAU,CAAC,EAAE,OAAO,CAAC;QACrB,QAAQ,CAAC,EAAE,MAAM,CAAC;QAClB,QAAQ,CAAC,EAAE,MAAM,CAAC;QAClB,aAAa,CAAC,EAAE,MAAM,CAAC;QACvB,cAAc,CAAC,EAAE,OAAO,CAAC;QACzB,iBAAiB,CAAC,EAAE,GAAG,CAAC;QACxB,QAAQ,CAAC,EAAE,KAAK,GAAG,QAAQ,GAAG,MAAM,CAAC;KACtC,GAAG,IAAI;IA4BR,kBAAkB,CAAC,QAAQ,EAAE,MAAM,EAAE,WAAW,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM,GAAG,GAAG,EAAE;IAgBnF,kBAAkB,CAAC,QAAQ,EAAE,MAAM,EAAE,WAAW,EAAE,MAAM,EAAE,SAAS,CAAC,EAAE,MAAM,GAAG,GAAG,EAAE;IA4BpF,wBAAwB,CAAC,QAAQ,EAAE,MAAM,EAAE,WAAW,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM,GAAG,GAAG,EAAE;IAkBzF,qBAAqB,CAAC,QAAQ,EAAE,MAAM,EAAE,WAAW,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM,GAAG,OAAO;IAcxF,sBAAsB,IAAI,MAAM;IAWhC,OAAO,CAAC,mBAAmB;IA0B3B,OAAO,CAAC,sBAAsB;IA0B9B,qBAAqB,CAAC,IAAI,EAAE;QAC1B,UAAU,EAAE,MAAM,CAAC;QACnB,aAAa,EAAE,MAAM,CAAC;QACtB,YAAY,EAAE,MAAM,CAAC;QACrB,gBAAgB,EAAE,GAAG,CAAC;QACtB,OAAO,EAAE,gBAAgB,GAAG,aAAa,GAAG,SAAS,CAAC;QACtD,UAAU,CAAC,EAAE,GAAG,EAAE,CAAC;QACnB,QAAQ,CAAC,EAAE,MAAM,EAAE,CAAC;QACpB,QAAQ,CAAC,EAAE,GAAG,CAAC;KAChB,GAAG,MAAM;IAyBV,mBAAmB,CAAC,UAAU,EAAE,MAAM,EAAE,KAAK,CAAC,EAAE,MAAM,GAAG,GAAG,EAAE;IAoB9D,kBAAkB,CAAC,SAAS,EAAE,MAAM,GAAG,GAAG,GAAG,IAAI;IAYjD,wBAAwB,CAAC,UAAU,EAAE,MAAM,GAAG,GAAG,GAAG,IAAI;IAexD,qBAAqB,CAAC,SAAS,EAAE,MAAM,GAAG,IAAI;IAS9C,kCAAkC,CAAC,UAAU,EAAE,MAAM,GAAG,MAAM;IAY9D,qBAAqB,CAAC,UAAU,EAAE,MAAM,EAAE,SAAS,EAAE,MAAM,GAAG,MAAM;IAiCpE,wBAAwB,IAAI,MAAM;IAWlC,uBAAuB,CAAC,UAAU,EAAE,MAAM,GAAG,MAAM;IAWnD,sBAAsB,IAAI,GAAG;IAwC7B,OAAO,CAAC,uBAAuB;CAchC"}

dist/database/node-repository.js

@@ -16,13 +16,12 @@ class NodeRepository {
       INSERT OR REPLACE INTO nodes (
         node_type, package_name, display_name, description,
         category, development_style, is_ai_tool, is_trigger,
-        is_webhook, is_versioned, is_tool_variant, tool_variant_of,
+        is_webhook, is_versioned, version, documentation,
-        has_tool_variant, version, documentation,
         properties_schema, operations, credentials_required,
         outputs, output_names
-      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `);
-        stmt.run(node.nodeType, node.packageName, node.displayName, node.description, node.category, node.style, node.isAITool ? 1 : 0, node.isTrigger ? 1 : 0, node.isWebhook ? 1 : 0, node.isVersioned ? 1 : 0, node.isToolVariant ? 1 : 0, node.toolVariantOf || null, node.hasToolVariant ? 1 : 0, node.version, node.documentation || null, JSON.stringify(node.properties, null, 2), JSON.stringify(node.operations, null, 2), JSON.stringify(node.credentials, null, 2), node.outputs ? JSON.stringify(node.outputs, null, 2) : null, node.outputNames ? JSON.stringify(node.outputNames, null, 2) : null);
+        stmt.run(node.nodeType, node.packageName, node.displayName, node.description, node.category, node.style, node.isAITool ? 1 : 0, node.isTrigger ? 1 : 0, node.isWebhook ? 1 : 0, node.isVersioned ? 1 : 0, node.version, node.documentation || null, JSON.stringify(node.properties, null, 2), JSON.stringify(node.operations, null, 2), JSON.stringify(node.credentials, null, 2), node.outputs ? JSON.stringify(node.outputs, null, 2) : null, node.outputNames ? JSON.stringify(node.outputNames, null, 2) : null);
     }
     getNode(nodeType) {
         const normalizedType = node_type_normalizer_1.NodeTypeNormalizer.normalizeToFullForm(nodeType);
@@ -123,40 +122,6 @@ class NodeRepository {
     getAIToolNodes() {
         return this.getAITools();
     }
-    getToolVariant(baseNodeType) {
-        if (!baseNodeType || typeof baseNodeType !== 'string' || !baseNodeType.includes('.')) {
-            return null;
-        }
-        const toolNodeType = `${baseNodeType}Tool`;
-        return this.getNode(toolNodeType);
-    }
-    getBaseNodeForToolVariant(toolNodeType) {
-        const row = this.db.prepare(`
-      SELECT tool_variant_of FROM nodes WHERE node_type = ?
-    `).get(toolNodeType);
-        if (!row?.tool_variant_of)
-            return null;
-        return this.getNode(row.tool_variant_of);
-    }
-    getToolVariants() {
-        const rows = this.db.prepare(`
-      SELECT node_type, display_name, description, package_name, tool_variant_of
-      FROM nodes
-      WHERE is_tool_variant = 1
-      ORDER BY display_name
-    `).all();
-        return rows.map(row => ({
-            nodeType: row.node_type,
-            displayName: row.display_name,
-            description: row.description,
-            package: row.package_name,
-            toolVariantOf: row.tool_variant_of
-        }));
-    }
-    getToolVariantCount() {
-        const result = this.db.prepare('SELECT COUNT(*) as count FROM nodes WHERE is_tool_variant = 1').get();
-        return result.count;
-    }
     getNodesByPackage(packageName) {
         const rows = this.db.prepare(`
       SELECT * FROM nodes WHERE package_name = ?
@@ -205,9 +170,6 @@ class NodeRepository {
             isTrigger: Number(row.is_trigger) === 1,
             isWebhook: Number(row.is_webhook) === 1,
             isVersioned: Number(row.is_versioned) === 1,
-            isToolVariant: Number(row.is_tool_variant) === 1,
-            toolVariantOf: row.tool_variant_of || null,
-            hasToolVariant: Number(row.has_tool_variant) === 1,
             version: row.version,
             properties: this.safeJsonParse(row.properties_schema, []),
             operations: this.safeJsonParse(row.operations, []),

dist/http-server-single-session.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"http-server-single-session.d.ts","sourceRoot":"","sources":["../src/http-server-single-session.ts"],"names":[],"mappings":";AAMA,OAAO,OAAO,MAAM,SAAS,CAAC;AAoB9B,OAAO,EAAE,eAAe,EAA2B,MAAM,0BAA0B,CAAC;AACpF,OAAO,EAAE,YAAY,EAAE,MAAM,uBAAuB,CAAC;AAuErD,qBAAa,uBAAuB;IAElC,OAAO,CAAC,UAAU,CAA8D;IAChF,OAAO,CAAC,OAAO,CAA0D;IACzE,OAAO,CAAC,eAAe,CAAsE;IAC7F,OAAO,CAAC,eAAe,CAA4D;IACnF,OAAO,CAAC,kBAAkB,CAAyC;IACnE,OAAO,CAAC,OAAO,CAAwB;IACvC,OAAO,CAAC,cAAc,CAAwB;IAC9C,OAAO,CAAC,aAAa,CAAM;IAC3B,OAAO,CAAC,cAAc,CAAkB;IACxC,OAAO,CAAC,SAAS,CAAuB;IACxC,OAAO,CAAC,YAAY,CAA+B;;IAcnD,OAAO,CAAC,mBAAmB;IAmB3B,OAAO,CAAC,sBAAsB;YAqChB,aAAa;IAkC3B,OAAO,CAAC,qBAAqB;IAO7B,OAAO,CAAC,gBAAgB;IAkBxB,OAAO,CAAC,gBAAgB;IASxB,OAAO,CAAC,sBAAsB;IAkC9B,OAAO,CAAC,mBAAmB;YASb,oBAAoB;YAwBpB,oBAAoB;IAwBlC,OAAO,CAAC,iBAAiB;IAsBzB,OAAO,CAAC,aAAa;IA2BrB,OAAO,CAAC,mBAAmB;IAoDrB,aAAa,CACjB,GAAG,EAAE,OAAO,CAAC,OAAO,EACpB,GAAG,EAAE,OAAO,CAAC,QAAQ,EACrB,eAAe,CAAC,EAAE,eAAe,GAChC,OAAO,CAAC,IAAI,CAAC;YAmOF,eAAe;IA8C7B,OAAO,CAAC,SAAS;IAYjB,OAAO,CAAC,gBAAgB;IASlB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAgnBtB,QAAQ,IAAI,OAAO,CAAC,IAAI,CAAC;IAkD/B,cAAc,IAAI;QAChB,MAAM,EAAE,OAAO,CAAC;QAChB,SAAS,CAAC,EAAE,MAAM,CAAC;QACnB,GAAG,CAAC,EAAE,MAAM,CAAC;QACb,QAAQ,CAAC,EAAE;YACT,KAAK,EAAE,MAAM,CAAC;YACd,MAAM,EAAE,MAAM,CAAC;YACf,OAAO,EAAE,MAAM,CAAC;YAChB,GAAG,EAAE,MAAM,CAAC;YACZ,UAAU,EAAE,MAAM,EAAE,CAAC;SACtB,CAAC;KACH;IAmDM,kBAAkB,IAAI,YAAY,EAAE;IAoEpC,mBAAmB,CAAC,QAAQ,EAAE,YAAY,EAAE,GAAG,MAAM;CAsG7D"}

dist/http-server-single-session.js

@@ -106,13 +106,8 @@ class SingleSessionHTTPServer {
             delete this.servers[sessionId];
             delete this.sessionMetadata[sessionId];
             delete this.sessionContexts[sessionId];
-            if (server && typeof server.close === 'function') {
+            if (server) {
-                try {
+                await server.close();
-                    await server.close();
-                }
-                catch (serverError) {
-                    logger_1.logger.warn('Error closing server', { sessionId, error: serverError });
-                }
             }
             if (transport) {
                 await transport.close();

dist/mcp/handlers-n8n-manager.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"handlers-n8n-manager.d.ts","sourceRoot":"","sources":["../../src/mcp/handlers-n8n-manager.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,YAAY,EAAE,MAAM,4BAA4B,CAAC;AAE1D,OAAO,EAML,eAAe,EAGhB,MAAM,kBAAkB,CAAC;AAkB1B,OAAO,EAAE,cAAc,EAAE,MAAM,6BAA6B,CAAC;AAC7D,OAAO,EAAE,eAAe,EAA2B,MAAM,2BAA2B,CAAC;AAOrF,OAAO,EAAE,eAAe,EAAE,MAAM,+BAA+B,CAAC;AAqNhE,wBAAgB,0BAA0B,IAAI,MAAM,CAEnD;AAMD,wBAAgB,uBAAuB,gDAEtC;AAKD,wBAAgB,kBAAkB,IAAI,IAAI,CAIzC;AAED,wBAAgB,eAAe,CAAC,OAAO,CAAC,EAAE,eAAe,GAAG,YAAY,GAAG,IAAI,CAgF9E;AAqHD,wBAAsB,oBAAoB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CA8E7G;AAED,wBAAsB,iBAAiB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAiC1G;AAED,wBAAsB,wBAAwB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAoDjH;AAED,wBAAsB,0BAA0B,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAmDnH;AAED,wBAAsB,wBAAwB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAyCjH;AAED,wBAAsB,oBAAoB,CACxC,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CAyH1B;AAeD,wBAAsB,oBAAoB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAkC7G;AAED,wBAAsB,mBAAmB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAiE5G;AAED,wBAAsB,sBAAsB,CAC1C,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CA0F1B;AAED,wBAAsB,qBAAqB,CACzC,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CAoK1B;AAQD,wBAAsB,kBAAkB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAwJ3G;AAED,wBAAsB,kBAAkB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CA4F3G;AAED,wBAAsB,oBAAoB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAgD7G;AAED,wBAAsB,qBAAqB,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAiC9G;AAID,wBAAsB,iBAAiB,CAAC,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAwG3F;AAkLD,wBAAsB,gBAAgB,CAAC,OAAO,EAAE,GAAG,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAkQxG;AAED,wBAAsB,sBAAsB,CAC1C,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CAsL1B;AA+BD,wBAAsB,oBAAoB,CACxC,IAAI,EAAE,OAAO,EACb,eAAe,EAAE,eAAe,EAChC,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CAoM1B;AAQD,wBAAsB,4BAA4B,CAAC,IAAI,EAAE,OAAO,EAAE,OAAO,CAAC,EAAE,eAAe,GAAG,OAAO,CAAC,eAAe,CAAC,CAyErH"}

dist/mcp/handlers-n8n-manager.js

@@ -285,13 +285,8 @@ async function handleCreateWorkflow(args, context) {
         telemetry_1.telemetry.trackWorkflowCreation(workflow, true);
         return {
             success: true,
-            data: {
+            data: workflow,
-                id: workflow.id,
+            message: `Workflow "${workflow.name}" created successfully with ID: ${workflow.id}`
-                name: workflow.name,
-                active: workflow.active,
-                nodeCount: workflow.nodes?.length || 0
-            },
-            message: `Workflow "${workflow.name}" created successfully with ID: ${workflow.id}. Use n8n_get_workflow with mode 'structure' to verify current state.`
         };
     }
     catch (error) {
@@ -542,13 +537,8 @@ async function handleUpdateWorkflow(args, repository, context) {
         }
         return {
             success: true,
-            data: {
+            data: workflow,
-                id: workflow.id,
+            message: `Workflow "${workflow.name}" updated successfully`
-                name: workflow.name,
-                active: workflow.active,
-                nodeCount: workflow.nodes?.length || 0
-            },
-            message: `Workflow "${workflow.name}" updated successfully. Use n8n_get_workflow with mode 'structure' to verify current state.`
         };
     }
     catch (error) {
@@ -604,12 +594,8 @@ async function handleDeleteWorkflow(args, context) {
         const deleted = await client.deleteWorkflow(id);
         return {
             success: true,
-            data: {
+            data: deleted,
-                id: deleted?.id || id,
+            message: `Workflow ${id} deleted successfully`
-                name: deleted?.name,
-                deleted: true
-            },
-            message: `Workflow "${deleted?.name || id}" deleted successfully.`
         };
     }
     catch (error) {
@@ -696,7 +682,7 @@ async function handleValidateWorkflow(args, repository, context) {
     try {
         const client = ensureApiConfigured(context);
         const input = validateWorkflowSchema.parse(args);
-        const workflowResponse = await handleGetWorkflow({ id: input.id }, context);
+        const workflowResponse = await handleGetWorkflow({ id: input.id });
         if (!workflowResponse.success) {
             return workflowResponse;
         }
@@ -1024,18 +1010,14 @@ async function handleGetExecution(args, context) {
         const client = ensureApiConfigured(context);
         const schema = zod_1.z.object({
             id: zod_1.z.string(),
-            mode: zod_1.z.enum(['preview', 'summary', 'filtered', 'full', 'error']).optional(),
+            mode: zod_1.z.enum(['preview', 'summary', 'filtered', 'full']).optional(),
             nodeNames: zod_1.z.array(zod_1.z.string()).optional(),
             itemsLimit: zod_1.z.number().optional(),
             includeInputData: zod_1.z.boolean().optional(),
-            includeData: zod_1.z.boolean().optional(),
+            includeData: zod_1.z.boolean().optional()
-            errorItemsLimit: zod_1.z.number().min(0).max(100).optional(),
-            includeStackTrace: zod_1.z.boolean().optional(),
-            includeExecutionPath: zod_1.z.boolean().optional(),
-            fetchWorkflow: zod_1.z.boolean().optional()
         });
         const params = schema.parse(args);
-        const { id, mode, nodeNames, itemsLimit, includeInputData, includeData, errorItemsLimit, includeStackTrace, includeExecutionPath, fetchWorkflow } = params;
+        const { id, mode, nodeNames, itemsLimit, includeInputData, includeData } = params;
         let effectiveMode = mode;
         if (!effectiveMode && includeData !== undefined) {
             effectiveMode = includeData ? 'summary' : undefined;
@@ -1048,28 +1030,13 @@ async function handleGetExecution(args, context) {
                 data: execution
             };
         }
-        let workflow;
-        if (effectiveMode === 'error' && fetchWorkflow !== false && execution.workflowId) {
-            try {
-                workflow = await client.getWorkflow(execution.workflowId);
-            }
-            catch (e) {
-                logger_1.logger.debug('Could not fetch workflow for error analysis', {
-                    workflowId: execution.workflowId,
-                    error: e instanceof Error ? e.message : 'Unknown error'
-                });
-            }
-        }
         const filterOptions = {
             mode: effectiveMode,
             nodeNames,
             itemsLimit,
-            includeInputData,
+            includeInputData
-            errorItemsLimit,
-            includeStackTrace,
-            includeExecutionPath
         };
-        const processedExecution = (0, execution_processor_1.processExecution)(execution, filterOptions, workflow);
+        const processedExecution = (0, execution_processor_1.processExecution)(execution, filterOptions);
         return {
             success: true,
             data: processedExecution

dist/mcp/handlers-workflow-diff.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"handlers-workflow-diff.d.ts","sourceRoot":"","sources":["../../src/mcp/handlers-workflow-diff.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,eAAe,EAAE,MAAM,kBAAkB,CAAC;AAMnD,OAAO,EAAE,eAAe,EAAE,MAAM,2BAA2B,CAAC;AAE5D,OAAO,EAAE,cAAc,EAAE,MAAM,6BAA6B,CAAC;AA0D7D,wBAAsB,2BAA2B,CAC/C,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CA6V1B"}
+{"version":3,"file":"handlers-workflow-diff.d.ts","sourceRoot":"","sources":["../../src/mcp/handlers-workflow-diff.ts"],"names":[],"mappings":"AAMA,OAAO,EAAE,eAAe,EAAE,MAAM,kBAAkB,CAAC;AAMnD,OAAO,EAAE,eAAe,EAAE,MAAM,2BAA2B,CAAC;AAE5D,OAAO,EAAE,cAAc,EAAE,MAAM,6BAA6B,CAAC;AA0D7D,wBAAsB,2BAA2B,CAC/C,IAAI,EAAE,OAAO,EACb,UAAU,EAAE,cAAc,EAC1B,OAAO,CAAC,EAAE,eAAe,GACxB,OAAO,CAAC,eAAe,CAAC,CA2V1B"}

dist/mcp/handlers-workflow-diff.js

@@ -329,15 +329,13 @@ async function handleUpdatePartialWorkflow(args, repository, context) {
             }
             return {
                 success: true,
-                data: {
+                data: finalWorkflow,
-                    id: finalWorkflow.id,
+                message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${activationMessage}`,
-                    name: finalWorkflow.name,
-                    active: finalWorkflow.active,
-                    nodeCount: finalWorkflow.nodes?.length || 0,
-                    operationsApplied: diffResult.operationsApplied
-                },
-                message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${activationMessage} Use n8n_get_workflow with mode 'structure' to verify current state.`,
                 details: {
+                    operationsApplied: diffResult.operationsApplied,
+                    workflowId: finalWorkflow.id,
+                    workflowName: finalWorkflow.name,
+                    active: finalWorkflow.active,
                     applied: diffResult.applied,
                     failed: diffResult.failed,
                     errors: diffResult.errors,

dist/mcp/server.d.ts

@@ -60,7 +60,6 @@ export declare class N8NDocumentationMCPServer {
     private getNodeAsToolInfo;
     private getOutputDescriptions;
     private getCommonAIToolUseCases;
-    private buildToolVariantGuidance;
     private getAIToolExamples;
     private validateNodeMinimal;
     private getToolsDocumentation;

dist/mcp/server.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"server.d.ts","sourceRoot":"","sources":["../../src/mcp/server.ts"],"names":[],"mappings":"AAsCA,OAAO,EAAE,eAAe,EAAE,MAAM,2BAA2B,CAAC;AAE5D,OAAO,EAAE,gBAAgB,EAAE,MAAM,iCAAiC,CAAC;AAgGnE,qBAAa,yBAAyB;IACpC,OAAO,CAAC,MAAM,CAAS;IACvB,OAAO,CAAC,EAAE,CAAgC;IAC1C,OAAO,CAAC,UAAU,CAA+B;IACjD,OAAO,CAAC,eAAe,CAAgC;IACvD,OAAO,CAAC,WAAW,CAAgB;IACnC,OAAO,CAAC,KAAK,CAAqB;IAClC,OAAO,CAAC,UAAU,CAAa;IAC/B,OAAO,CAAC,eAAe,CAAC,CAAkB;IAC1C,OAAO,CAAC,YAAY,CAAuB;IAC3C,OAAO,CAAC,qBAAqB,CAAsB;IACnD,OAAO,CAAC,WAAW,CAAiC;IACpD,OAAO,CAAC,kBAAkB,CAA4B;gBAE1C,eAAe,CAAC,EAAE,eAAe,EAAE,WAAW,CAAC,EAAE,gBAAgB;IAiGvE,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;YA6Bd,kBAAkB;YAwClB,wBAAwB;IA0BtC,OAAO,CAAC,kBAAkB;YA6CZ,iBAAiB;IAa/B,OAAO,CAAC,eAAe,CAAkB;YAE3B,sBAAsB;IAgDpC,OAAO,CAAC,gBAAgB;IAqCxB,OAAO,CAAC,aAAa;IAoTrB,OAAO,CAAC,wBAAwB;IAoFhC,OAAO,CAAC,kBAAkB;IAqE1B,OAAO,CAAC,uBAAuB;IAwB/B,OAAO,CAAC,qBAAqB;YAgTf,SAAS;YA2DT,WAAW;YAkFX,WAAW;YAyCX,cAAc;YAyKd,gBAAgB;IAqD9B,OAAO,CAAC,mBAAmB;IAwE3B,OAAO,CAAC,eAAe;YAsBT,eAAe;IAqI7B,OAAO,CAAC,kBAAkB;IAQ1B,OAAO,CAAC,uBAAuB;IA0D/B,OAAO,CAAC,iBAAiB;YAqFX,WAAW;YAgCX,oBAAoB;YA2EpB,qBAAqB;YAwDrB,iBAAiB;YAiKjB,OAAO;YAgDP,cAAc;YAwFd,iBAAiB;IAqC/B,OAAO,CAAC,iBAAiB;IA0BzB,OAAO,CAAC,iBAAiB;IA0BzB,OAAO,CAAC,eAAe;IAwCvB,OAAO,CAAC,kBAAkB;IAiC1B,OAAO,CAAC,aAAa;IAoCrB,OAAO,CAAC,0BAA0B;IAgClC,OAAO,CAAC,4BAA4B;YAKtB,oBAAoB;IAsDlC,OAAO,CAAC,gBAAgB;YAiBV,SAAS;YA6CT,kBAAkB;YAqElB,uBAAuB;YAsDvB,iBAAiB;IAqE/B,OAAO,CAAC,qBAAqB;IA8C7B,OAAO,CAAC,uBAAuB;IA4D/B,OAAO,CAAC,wBAAwB;IAkChC,OAAO,CAAC,iBAAiB;YAoDX,mBAAmB;YAoEnB,qBAAqB;IAS7B,OAAO,CAAC,SAAS,EAAE,GAAG,GAAG,OAAO,CAAC,IAAI,CAAC;YAS9B,aAAa;YAcb,iBAAiB;YAoBjB,WAAW;YAwBX,eAAe;YAqBf,mBAAmB;YAwBnB,yBAAyB;IA4CvC,OAAO,CAAC,kBAAkB;YAiBZ,gBAAgB;YA6HhB,2BAA2B;YAiE3B,2BAA2B;IAyEnC,GAAG,IAAI,OAAO,CAAC,IAAI,CAAC;IA0BpB,QAAQ,IAAI,OAAO,CAAC,IAAI,CAAC;CAuBhC"}
+{"version":3,"file":"server.d.ts","sourceRoot":"","sources":["../../src/mcp/server.ts"],"names":[],"mappings":"AAsCA,OAAO,EAAE,eAAe,EAAE,MAAM,2BAA2B,CAAC;AAE5D,OAAO,EAAE,gBAAgB,EAAE,MAAM,iCAAiC,CAAC;AAkFnE,qBAAa,yBAAyB;IACpC,OAAO,CAAC,MAAM,CAAS;IACvB,OAAO,CAAC,EAAE,CAAgC;IAC1C,OAAO,CAAC,UAAU,CAA+B;IACjD,OAAO,CAAC,eAAe,CAAgC;IACvD,OAAO,CAAC,WAAW,CAAgB;IACnC,OAAO,CAAC,KAAK,CAAqB;IAClC,OAAO,CAAC,UAAU,CAAa;IAC/B,OAAO,CAAC,eAAe,CAAC,CAAkB;IAC1C,OAAO,CAAC,YAAY,CAAuB;IAC3C,OAAO,CAAC,qBAAqB,CAAsB;IACnD,OAAO,CAAC,WAAW,CAAiC;IACpD,OAAO,CAAC,kBAAkB,CAA4B;gBAE1C,eAAe,CAAC,EAAE,eAAe,EAAE,WAAW,CAAC,EAAE,gBAAgB;IA2FvE,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;YAed,kBAAkB;YAwClB,wBAAwB;IA0BtC,OAAO,CAAC,kBAAkB;YA6CZ,iBAAiB;IAa/B,OAAO,CAAC,eAAe,CAAkB;YAE3B,sBAAsB;IAgDpC,OAAO,CAAC,gBAAgB;IAqCxB,OAAO,CAAC,aAAa;IAoTrB,OAAO,CAAC,wBAAwB;IAoFhC,OAAO,CAAC,kBAAkB;IAqE1B,OAAO,CAAC,uBAAuB;IAwB/B,OAAO,CAAC,qBAAqB;YAgTf,SAAS;YA2DT,WAAW;YA0EX,WAAW;YAyCX,cAAc;YAyKd,gBAAgB;IAqD9B,OAAO,CAAC,mBAAmB;IAwE3B,OAAO,CAAC,eAAe;YAsBT,eAAe;IAqI7B,OAAO,CAAC,kBAAkB;IAQ1B,OAAO,CAAC,uBAAuB;IA0D/B,OAAO,CAAC,iBAAiB;YAqFX,WAAW;YAgCX,oBAAoB;YA2EpB,qBAAqB;YAwDrB,iBAAiB;YA2JjB,OAAO;YAgDP,cAAc;YAgFd,iBAAiB;IAqC/B,OAAO,CAAC,iBAAiB;IA0BzB,OAAO,CAAC,iBAAiB;IA0BzB,OAAO,CAAC,eAAe;IAwCvB,OAAO,CAAC,kBAAkB;IAiC1B,OAAO,CAAC,aAAa;IAoCrB,OAAO,CAAC,0BAA0B;IAgClC,OAAO,CAAC,4BAA4B;YAKtB,oBAAoB;IAsDlC,OAAO,CAAC,gBAAgB;YAiBV,SAAS;YA6CT,kBAAkB;YA+DlB,uBAAuB;YAsDvB,iBAAiB;IAqE/B,OAAO,CAAC,qBAAqB;IA8C7B,OAAO,CAAC,uBAAuB;IAwD/B,OAAO,CAAC,iBAAiB;YAoDX,mBAAmB;YAkGnB,qBAAqB;IAS7B,OAAO,CAAC,SAAS,EAAE,GAAG,GAAG,OAAO,CAAC,IAAI,CAAC;YAS9B,aAAa;YAcb,iBAAiB;YAoBjB,WAAW;YAwBX,eAAe;YAqBf,mBAAmB;YAwBnB,yBAAyB;IA4CvC,OAAO,CAAC,kBAAkB;YAiBZ,gBAAgB;YA6HhB,2BAA2B;YAiE3B,2BAA2B;IAyEnC,GAAG,IAAI,OAAO,CAAC,IAAI,CAAC;IA0BpB,QAAQ,IAAI,OAAO,CAAC,IAAI,CAAC;CAuBhC"}

dist/mcp/server.js

@@ -51,7 +51,6 @@ const node_repository_1 = require("../database/node-repository");
 const database_adapter_1 = require("../database/database-adapter");
 const property_filter_1 = require("../services/property-filter");
 const task_templates_1 = require("../services/task-templates");
-const config_validator_1 = require("../services/config-validator");
 const enhanced_config_validator_1 = require("../services/enhanced-config-validator");
 const property_dependencies_1 = require("../services/property-dependencies");
 const type_structure_service_1 = require("../services/type-structure-service");
@@ -151,17 +150,7 @@ class N8NDocumentationMCPServer {
     async close() {
         try {
             await this.server.close();
-            this.cache.destroy();
+            this.cache.clear();
-            if (this.db) {
-                try {
-                    this.db.close();
-                }
-                catch (dbError) {
-                    logger_1.logger.warn('Error closing database', {
-                        error: dbError instanceof Error ? dbError.message : String(dbError)
-                    });
-                }
-            }
             this.db = null;
             this.repository = null;
             this.templateService = null;
@@ -1026,17 +1015,12 @@ class N8NDocumentationMCPServer {
                 };
             });
         }
-        const result = {
+        return {
             ...node,
             workflowNodeType: (0, node_utils_1.getWorkflowNodeType)(node.package ?? 'n8n-nodes-base', node.nodeType),
             aiToolCapabilities,
             outputs
         };
-        const toolVariantInfo = this.buildToolVariantGuidance(node);
-        if (toolVariantInfo) {
-            result.toolVariantInfo = toolVariantInfo;
-        }
-        return result;
     }
     async searchNodes(query, limit = 20, options) {
         await this.ensureInitialized();
@@ -1709,10 +1693,6 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
                 developmentStyle: node.developmentStyle ?? 'programmatic'
             }
         };
-        const toolVariantInfo = this.buildToolVariantGuidance(node);
-        if (toolVariantInfo) {
-            result.toolVariantInfo = toolVariantInfo;
-        }
         if (includeExamples) {
             try {
                 const examples = this.db.prepare(`
@@ -1794,7 +1774,7 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
                 if (!node) {
                     throw new Error(`Node ${nodeType} not found`);
                 }
-                const result = {
+                return {
                     nodeType: node.nodeType,
                     workflowNodeType: (0, node_utils_1.getWorkflowNodeType)(node.package ?? 'n8n-nodes-base', node.nodeType),
                     displayName: node.displayName,
@@ -1805,11 +1785,6 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
                     isTrigger: node.isTrigger,
                     isWebhook: node.isWebhook
                 };
-                const toolVariantInfo = this.buildToolVariantGuidance(node);
-                if (toolVariantInfo) {
-                    result.toolVariantInfo = toolVariantInfo;
-                }
-                return result;
             }
             case 'standard': {
                 const essentials = await this.getNodeEssentials(nodeType, includeExamples);
@@ -2109,11 +2084,7 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
             throw new Error(`Node ${nodeType} not found`);
         }
         const properties = node.properties || [];
-        const configWithVersion = {
+        const validationResult = enhanced_config_validator_1.EnhancedConfigValidator.validateWithMode(node.nodeType, config, properties, mode, profile);
-            '@version': node.version || 1,
-            ...config
-        };
-        const validationResult = enhanced_config_validator_1.EnhancedConfigValidator.validateWithMode(node.nodeType, configWithVersion, properties, mode, profile);
         return {
             nodeType: node.nodeType,
             workflowNodeType: (0, node_utils_1.getWorkflowNodeType)(node.package, node.nodeType),
@@ -2311,32 +2282,6 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
             'Extend AI agent capabilities'
         ];
     }
-    buildToolVariantGuidance(node) {
-        const isToolVariant = !!node.isToolVariant;
-        const hasToolVariant = !!node.hasToolVariant;
-        const toolVariantOf = node.toolVariantOf;
-        if (!isToolVariant && !hasToolVariant) {
-            return undefined;
-        }
-        if (isToolVariant) {
-            return {
-                isToolVariant: true,
-                toolVariantOf,
-                hasToolVariant: false,
-                guidance: `This is the Tool variant for AI Agent integration. Use this node type when connecting to AI Agents. The base node is: ${toolVariantOf}`
-            };
-        }
-        if (hasToolVariant && node.nodeType) {
-            const toolVariantNodeType = `${node.nodeType}Tool`;
-            return {
-                isToolVariant: false,
-                hasToolVariant: true,
-                toolVariantNodeType,
-                guidance: `To use this node with AI Agents, use the Tool variant: ${toolVariantNodeType}. The Tool variant has an additional 'toolDescription' property and outputs 'ai_tool' instead of 'main'.`
-            };
-        }
-        return undefined;
-    }
     getAIToolExamples(nodeType) {
         const exampleMap = {
             'nodes-base.slack': {
@@ -2407,16 +2352,40 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
             throw new Error(`Node ${nodeType} not found`);
         }
         const properties = node.properties || [];
-        const configWithVersion = {
+        const operationContext = {
-            '@version': node.version || 1,
+            resource: config?.resource,
-            ...(config || {})
+            operation: config?.operation,
+            action: config?.action,
+            mode: config?.mode
         };
         const missingFields = [];
         for (const prop of properties) {
             if (!prop.required)
                 continue;
-            if (prop.displayOptions && !config_validator_1.ConfigValidator.isPropertyVisible(prop, configWithVersion)) {
+            if (prop.displayOptions) {
-                continue;
+                let isVisible = true;
+                if (prop.displayOptions.show) {
+                    for (const [key, values] of Object.entries(prop.displayOptions.show)) {
+                        const configValue = config?.[key];
+                        const expectedValues = Array.isArray(values) ? values : [values];
+                        if (!expectedValues.includes(configValue)) {
+                            isVisible = false;
+                            break;
+                        }
+                    }
+                }
+                if (isVisible && prop.displayOptions.hide) {
+                    for (const [key, values] of Object.entries(prop.displayOptions.hide)) {
+                        const configValue = config?.[key];
+                        const expectedValues = Array.isArray(values) ? values : [values];
+                        if (expectedValues.includes(configValue)) {
+                            isVisible = false;
+                            break;
+                        }
+                    }
+                }
+                if (!isVisible)
+                    continue;
             }
             if (!config || !(prop.name in config)) {
                 missingFields.push(prop.displayName || prop.name);

dist/mcp/tool-docs/workflow_management/n8n-create-workflow.js

@@ -24,7 +24,7 @@ exports.n8nCreateWorkflowDoc = {
             connections: { type: 'object', required: true, description: 'Node connections. Keys are source node IDs' },
             settings: { type: 'object', description: 'Optional workflow settings (timezone, error handling, etc.)' }
         },
-        returns: 'Minimal summary (id, name, active, nodeCount) for token efficiency. Use n8n_get_workflow with mode "structure" to verify current state if needed.',
+        returns: 'Created workflow object with id, name, nodes, connections, active status',
         examples: [
             `// Basic webhook to Slack workflow
 n8n_create_workflow({

dist/mcp/tool-docs/workflow_management/n8n-create-workflow.js.map

@@ -1 +1 @@
-{"version":3,"file":"n8n-create-workflow.js","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-create-workflow.ts"],"names":[],"mappings":";;;AAEa,QAAA,oBAAoB,GAAsB;IACrD,IAAI,EAAE,qBAAqB;IAC3B,QAAQ,EAAE,qBAAqB;IAC/B,UAAU,EAAE;QACV,WAAW,EAAE,sGAAsG;QACnH,aAAa,EAAE,CAAC,MAAM,EAAE,OAAO,EAAE,aAAa,CAAC;QAC/C,OAAO,EAAE,0EAA0E;QACnF,WAAW,EAAE,mBAAmB;QAChC,IAAI,EAAE;YACJ,2BAA2B;YAC3B,+BAA+B;YAC/B,uCAAuC;YACvC,kFAAkF;SACnF;KACF;IACD,IAAI,EAAE;QACJ,WAAW,EAAE,uLAAuL;QACpM,UAAU,EAAE;YACV,IAAI,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,eAAe,EAAE;YACtE,KAAK,EAAE,EAAE,IAAI,EAAE,OAAO,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,uEAAuE,EAAE;YAC9H,WAAW,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,4CAA4C,EAAE;YAC1G,QAAQ,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,WAAW,EAAE,6DAA6D,EAAE;SACzG;QACD,OAAO,EAAE,mJAAmJ;QAC5J,QAAQ,EAAE;YACR;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAkCH;YACG;;;;;;;;;;;GAWH;SACE;QACD,QAAQ,EAAE;YACR,4BAA4B;YAC5B,4BAA4B;YAC5B,2BAA2B;YAC3B,qBAAqB;SACtB;QACD,WAAW,EAAE,oEAAoE;QACjF,aAAa,EAAE;YACb,uCAAuC;YACvC,qBAAqB;YACrB,gCAAgC;YAChC,6BAA6B;SAC9B;QACD,QAAQ,EAAE;YACR,0GAA0G;YAC1G,gEAAgE;YAChE,yCAAyC;YACzC,kDAAkD;YAClD,4EAA4E;YAC5E,yIAAyI;YACzI,uIAAuI;SACxI;QACD,YAAY,EAAE,CAAC,mBAAmB,EAAE,6BAA6B,EAAE,mBAAmB,CAAC;KACxF;CACF,CAAC"}
+{"version":3,"file":"n8n-create-workflow.js","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-create-workflow.ts"],"names":[],"mappings":";;;AAEa,QAAA,oBAAoB,GAAsB;IACrD,IAAI,EAAE,qBAAqB;IAC3B,QAAQ,EAAE,qBAAqB;IAC/B,UAAU,EAAE;QACV,WAAW,EAAE,sGAAsG;QACnH,aAAa,EAAE,CAAC,MAAM,EAAE,OAAO,EAAE,aAAa,CAAC;QAC/C,OAAO,EAAE,0EAA0E;QACnF,WAAW,EAAE,mBAAmB;QAChC,IAAI,EAAE;YACJ,2BAA2B;YAC3B,+BAA+B;YAC/B,uCAAuC;YACvC,kFAAkF;SACnF;KACF;IACD,IAAI,EAAE;QACJ,WAAW,EAAE,uLAAuL;QACpM,UAAU,EAAE;YACV,IAAI,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,eAAe,EAAE;YACtE,KAAK,EAAE,EAAE,IAAI,EAAE,OAAO,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,uEAAuE,EAAE;YAC9H,WAAW,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,4CAA4C,EAAE;YAC1G,QAAQ,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,WAAW,EAAE,6DAA6D,EAAE;SACzG;QACD,OAAO,EAAE,0EAA0E;QACnF,QAAQ,EAAE;YACR;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAkCH;YACG;;;;;;;;;;;GAWH;SACE;QACD,QAAQ,EAAE;YACR,4BAA4B;YAC5B,4BAA4B;YAC5B,2BAA2B;YAC3B,qBAAqB;SACtB;QACD,WAAW,EAAE,oEAAoE;QACjF,aAAa,EAAE;YACb,uCAAuC;YACvC,qBAAqB;YACrB,gCAAgC;YAChC,6BAA6B;SAC9B;QACD,QAAQ,EAAE;YACR,0GAA0G;YAC1G,gEAAgE;YAChE,yCAAyC;YACzC,kDAAkD;YAClD,4EAA4E;YAC5E,yIAAyI;YACzI,uIAAuI;SACxI;QACD,YAAY,EAAE,CAAC,mBAAmB,EAAE,6BAA6B,EAAE,mBAAmB,CAAC;KACxF;CACF,CAAC"}

dist/mcp/tool-docs/workflow_management/n8n-delete-workflow.js

@@ -20,7 +20,7 @@ exports.n8nDeleteWorkflowDoc = {
         parameters: {
             id: { type: 'string', required: true, description: 'Workflow ID to delete permanently' }
         },
-        returns: 'Minimal confirmation (id, name, deleted: true) for token efficiency.',
+        returns: 'Success confirmation or error if workflow not found/cannot be deleted',
         examples: [
             'n8n_delete_workflow({id: "abc123"}) - Delete specific workflow',
             'if (confirm) { n8n_delete_workflow({id: wf.id}); } // With confirmation'

dist/mcp/tool-docs/workflow_management/n8n-delete-workflow.js.map

@@ -1 +1 @@
-{"version":3,"file":"n8n-delete-workflow.js","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-delete-workflow.ts"],"names":[],"mappings":";;;AAEa,QAAA,oBAAoB,GAAsB;IACrD,IAAI,EAAE,qBAAqB;IAC3B,QAAQ,EAAE,qBAAqB;IAC/B,UAAU,EAAE;QACV,WAAW,EAAE,8DAA8D;QAC3E,aAAa,EAAE,CAAC,IAAI,CAAC;QACrB,OAAO,EAAE,2CAA2C;QACpD,WAAW,EAAE,iBAAiB;QAC9B,IAAI,EAAE;YACJ,wBAAwB;YACxB,+BAA+B;YAC/B,+DAA+D;SAChE;KACF;IACD,IAAI,EAAE;QACJ,WAAW,EAAE,qPAAqP;QAClQ,UAAU,EAAE;YACV,EAAE,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,mCAAmC,EAAE;SACzF;QACD,OAAO,EAAE,sEAAsE;QAC/E,QAAQ,EAAE;YACR,gEAAgE;YAChE,yEAAyE;SAC1E;QACD,QAAQ,EAAE;YACR,2BAA2B;YAC3B,yBAAyB;YACzB,2BAA2B;YAC3B,wBAAwB;YACxB,mBAAmB;SACpB;QACD,WAAW,EAAE,mGAAmG;QAChH,aAAa,EAAE;YACb,gCAAgC;YAChC,+DAA+D;YAC/D,2CAA2C;YAC3C,4CAA4C;SAC7C;QACD,QAAQ,EAAE;YACR,iDAAiD;YACjD,uCAAuC;YACvC,+BAA+B;YAC/B,iCAAiC;YACjC,0BAA0B;SAC3B;QACD,YAAY,EAAE,CAAC,kBAAkB,EAAE,oBAAoB,EAAE,6BAA6B,EAAE,gBAAgB,CAAC;KAC1G;CACF,CAAC"}
+{"version":3,"file":"n8n-delete-workflow.js","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-delete-workflow.ts"],"names":[],"mappings":";;;AAEa,QAAA,oBAAoB,GAAsB;IACrD,IAAI,EAAE,qBAAqB;IAC3B,QAAQ,EAAE,qBAAqB;IAC/B,UAAU,EAAE;QACV,WAAW,EAAE,8DAA8D;QAC3E,aAAa,EAAE,CAAC,IAAI,CAAC;QACrB,OAAO,EAAE,2CAA2C;QACpD,WAAW,EAAE,iBAAiB;QAC9B,IAAI,EAAE;YACJ,wBAAwB;YACxB,+BAA+B;YAC/B,+DAA+D;SAChE;KACF;IACD,IAAI,EAAE;QACJ,WAAW,EAAE,qPAAqP;QAClQ,UAAU,EAAE;YACV,EAAE,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,mCAAmC,EAAE;SACzF;QACD,OAAO,EAAE,uEAAuE;QAChF,QAAQ,EAAE;YACR,gEAAgE;YAChE,yEAAyE;SAC1E;QACD,QAAQ,EAAE;YACR,2BAA2B;YAC3B,yBAAyB;YACzB,2BAA2B;YAC3B,wBAAwB;YACxB,mBAAmB;SACpB;QACD,WAAW,EAAE,mGAAmG;QAChH,aAAa,EAAE;YACb,gCAAgC;YAChC,+DAA+D;YAC/D,2CAA2C;YAC3C,4CAA4C;SAC7C;QACD,QAAQ,EAAE;YACR,iDAAiD;YACjD,uCAAuC;YACvC,+BAA+B;YAC/B,iCAAiC;YACjC,0BAA0B;SAC3B;QACD,YAAY,EAAE,CAAC,kBAAkB,EAAE,oBAAoB,EAAE,6BAA6B,EAAE,gBAAgB,CAAC;KAC1G;CACF,CAAC"}

dist/mcp/tool-docs/workflow_management/n8n-executions.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"n8n-executions.d.ts","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-executions.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,iBAAiB,EAAE,MAAM,UAAU,CAAC;AAE7C,eAAO,MAAM,gBAAgB,EAAE,iBA+E9B,CAAC"}

dist/mcp/tool-docs/workflow_management/n8n-executions.js

@@ -6,14 +6,13 @@ exports.n8nExecutionsDoc = {
     category: 'workflow_management',
     essentials: {
         description: 'Manage workflow executions: get details, list, or delete. Unified tool for all execution operations.',
-        keyParameters: ['action', 'id', 'workflowId', 'status', 'mode'],
+        keyParameters: ['action', 'id', 'workflowId', 'status'],
-        example: 'n8n_executions({action: "get", id: "exec_456", mode: "error"})',
+        example: 'n8n_executions({action: "list", workflowId: "abc123", status: "error"})',
         performance: 'Fast (50-200ms)',
         tips: [
             'action="get": Get execution details by ID',
             'action="list": List executions with filters',
             'action="delete": Delete execution record',
-            'Use mode="error" for efficient failure debugging (80-90% token savings)',
             'Use mode parameter for action=get to control detail level'
         ]
     },
@@ -27,26 +26,14 @@ exports.n8nExecutionsDoc = {
 - preview: Structure only, no data
 - summary: 2 items per node (default)
 - filtered: Custom items limit, optionally filter by node names
-- full: All execution data (can be very large)
+- full: All execution data (can be very large)`,
-- error: Optimized for debugging failures - extracts error info, upstream context, and AI suggestions
-
-**Error Mode Features:**
-- Extracts error message, type, and node configuration
-- Samples input data from upstream node (configurable limit)
-- Shows execution path leading to error
-- Provides AI-friendly fix suggestions based on error patterns
-- Token-efficient (80-90% smaller than full mode)`,
         parameters: {
             action: { type: 'string', required: true, description: 'Operation: "get", "list", or "delete"' },
             id: { type: 'string', required: false, description: 'Execution ID (required for action=get or action=delete)' },
-            mode: { type: 'string', required: false, description: 'For action=get: "preview", "summary" (default), "filtered", "full", "error"' },
+            mode: { type: 'string', required: false, description: 'For action=get: "preview", "summary" (default), "filtered", "full"' },
             nodeNames: { type: 'array', required: false, description: 'For action=get with mode=filtered: Filter to specific nodes by name' },
             itemsLimit: { type: 'number', required: false, description: 'For action=get with mode=filtered: Items per node (0=structure, 2=default, -1=unlimited)' },
             includeInputData: { type: 'boolean', required: false, description: 'For action=get: Include input data in addition to output (default: false)' },
-            errorItemsLimit: { type: 'number', required: false, description: 'For action=get with mode=error: Sample items from upstream (default: 2, max: 100)' },
-            includeStackTrace: { type: 'boolean', required: false, description: 'For action=get with mode=error: Include full stack trace (default: false, shows truncated)' },
-            includeExecutionPath: { type: 'boolean', required: false, description: 'For action=get with mode=error: Include execution path (default: true)' },
-            fetchWorkflow: { type: 'boolean', required: false, description: 'For action=get with mode=error: Fetch workflow for accurate upstream detection (default: true)' },
             workflowId: { type: 'string', required: false, description: 'For action=list: Filter by workflow ID' },
             status: { type: 'string', required: false, description: 'For action=list: Filter by status ("success", "error", "waiting")' },
             limit: { type: 'number', required: false, description: 'For action=list: Number of results (1-100, default: 100)' },
@@ -55,15 +42,10 @@ exports.n8nExecutionsDoc = {
             includeData: { type: 'boolean', required: false, description: 'For action=list: Include execution data (default: false)' }
         },
         returns: `Depends on action:
-- get (error mode): { errorInfo: { primaryError, upstreamContext, executionPath, suggestions }, summary }
+- get: Execution object with data based on mode
-- get (other modes): Execution object with data based on mode
 - list: { data: [...executions], nextCursor?: string }
 - delete: { success: boolean, message: string }`,
         examples: [
-            '// Debug a failed execution (recommended for errors)\nn8n_executions({action: "get", id: "exec_456", mode: "error"})',
-            '// Debug with more sample data from upstream\nn8n_executions({action: "get", id: "exec_456", mode: "error", errorItemsLimit: 5})',
-            '// Debug with full stack trace\nn8n_executions({action: "get", id: "exec_456", mode: "error", includeStackTrace: true})',
-            '// Debug without workflow fetch (faster but less accurate)\nn8n_executions({action: "get", id: "exec_456", mode: "error", fetchWorkflow: false})',
             '// List recent executions for a workflow\nn8n_executions({action: "list", workflowId: "abc123", limit: 10})',
             '// List failed executions\nn8n_executions({action: "list", status: "error"})',
             '// Get execution summary\nn8n_executions({action: "get", id: "exec_456"})',
@@ -72,10 +54,7 @@ exports.n8nExecutionsDoc = {
             '// Delete an execution\nn8n_executions({action: "delete", id: "exec_456"})'
         ],
         useCases: [
-            'Debug workflow failures efficiently (mode=error) - 80-90% token savings',
+            'Debug workflow failures (get with mode=full)',
-            'Get AI suggestions for fixing common errors',
-            'Analyze input data that caused failure',
-            'Debug workflow failures with full data (mode=full)',
             'Monitor workflow health (list with status filter)',
             'Audit execution history',
             'Clean up old execution records',
@@ -84,22 +63,18 @@ exports.n8nExecutionsDoc = {
         performance: `Response times:
 - list: 50-150ms depending on filters
 - get (preview/summary): 30-100ms
-- get (error): 50-200ms (includes optional workflow fetch)
 - get (full): 100-500ms+ depending on data size
 - delete: 30-80ms`,
         bestPractices: [
-            'Use mode="error" for debugging failed executions - 80-90% token savings vs full',
+            'Use mode="summary" (default) for debugging - shows enough data',
-            'Use mode="summary" (default) for quick inspection',
             'Use mode="filtered" with nodeNames for large workflows',
             'Filter by workflowId when listing to reduce results',
             'Use cursor for pagination through large result sets',
-            'Set fetchWorkflow=false if you already know the workflow structure',
             'Delete old executions to save storage'
         ],
         pitfalls: [
             'Requires N8N_API_URL and N8N_API_KEY configured',
             'mode="full" can return very large responses for complex workflows',
-            'mode="error" fetches workflow by default (adds ~50-100ms), disable with fetchWorkflow=false',
             'Execution must exist or returns 404',
             'Delete is permanent - cannot undo'
         ],

dist/mcp/tool-docs/workflow_management/n8n-executions.js.map

@@ -1 +1 @@
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dist/mcp/tool-docs/workflow_management/n8n-update-full-workflow.js

@@ -26,7 +26,7 @@ exports.n8nUpdateFullWorkflowDoc = {
             settings: { type: 'object', description: 'Workflow settings to update (timezone, error handling, etc.)' },
             intent: { type: 'string', description: 'Intent of the change - helps to return better response. Include in every tool call. Example: "Migrate workflow to new node versions".' }
         },
-        returns: 'Minimal summary (id, name, active, nodeCount) for token efficiency. Use n8n_get_workflow with mode "structure" to verify current state if needed.',
+        returns: 'Updated workflow object with all fields including the changes applied',
         examples: [
             'n8n_update_full_workflow({id: "abc", intent: "Rename workflow for clarity", name: "New Name"}) - Rename with intent',
             'n8n_update_full_workflow({id: "abc", name: "New Name"}) - Rename only',

dist/mcp/tool-docs/workflow_management/n8n-update-full-workflow.js.map

@@ -1 +1 @@
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+{"version":3,"file":"n8n-update-full-workflow.js","sourceRoot":"","sources":["../../../../src/mcp/tool-docs/workflow_management/n8n-update-full-workflow.ts"],"names":[],"mappings":";;;AAEa,QAAA,wBAAwB,GAAsB;IACzD,IAAI,EAAE,0BAA0B;IAChC,QAAQ,EAAE,qBAAqB;IAC/B,UAAU,EAAE;QACV,WAAW,EAAE,qHAAqH;QAClI,aAAa,EAAE,CAAC,IAAI,EAAE,OAAO,EAAE,aAAa,CAAC;QAC7C,OAAO,EAAE,4EAA4E;QACrF,WAAW,EAAE,mBAAmB;QAChC,IAAI,EAAE;YACJ,2EAA2E;YAC3E,gCAAgC;YAChC,sCAAsC;YACtC,0BAA0B;SAC3B;KACF;IACD,IAAI,EAAE;QACJ,WAAW,EAAE,4QAA4Q;QACzR,UAAU,EAAE;YACV,EAAE,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,QAAQ,EAAE,IAAI,EAAE,WAAW,EAAE,uBAAuB,EAAE;YAC5E,IAAI,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,WAAW,EAAE,8BAA8B,EAAE;YACrE,KAAK,EAAE,EAAE,IAAI,EAAE,OAAO,EAAE,WAAW,EAAE,oEAAoE,EAAE;YAC3G,WAAW,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,WAAW,EAAE,+DAA+D,EAAE;YAC7G,QAAQ,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,WAAW,EAAE,8DAA8D,EAAE;YACzG,MAAM,EAAE,EAAE,IAAI,EAAE,QAAQ,EAAE,WAAW,EAAE,uIAAuI,EAAE;SACjL;QACD,OAAO,EAAE,uEAAuE;QAChF,QAAQ,EAAE;YACR,qHAAqH;YACrH,uEAAuE;YACvE,qIAAqI;YACrI,+IAA+I;SAChJ;QACD,QAAQ,EAAE;YACR,8BAA8B;YAC9B,mBAAmB;YACnB,0BAA0B;YAC1B,+BAA+B;YAC/B,kBAAkB;SACnB;QACD,WAAW,EAAE,wHAAwH;QACrI,aAAa,EAAE;YACb,qEAAqE;YACrE,yCAAyC;YACzC,iDAAiD;YACjD,sCAAsC;YACtC,sCAAsC;SACvC;QACD,QAAQ,EAAE;YACR,iDAAiD;YACjD,oCAAoC;YACpC,+BAA+B;YAC/B,4BAA4B;YAC5B,iDAAiD;SAClD;QACD,YAAY,EAAE,CAAC,kBAAkB,EAAE,6BAA6B,EAAE,mBAAmB,EAAE,qBAAqB,CAAC;KAC9G;CACF,CAAC"}

dist/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.js

@@ -313,7 +313,7 @@ n8n_update_partial_workflow({
             continueOnError: { type: 'boolean', description: 'If true, apply valid operations even if some fail (best-effort mode). Returns applied and failed operation indices. Default: false (atomic)' },
             intent: { type: 'string', description: 'Intent of the change - helps to return better response. Include in every tool call. Example: "Add error handling for API failures".' }
         },
-        returns: 'Minimal summary (id, name, active, nodeCount, operationsApplied) for token efficiency. Use n8n_get_workflow with mode "structure" to verify current state if needed. Returns validation results if validateOnly=true.',
+        returns: 'Updated workflow object or validation results if validateOnly=true',
         examples: [
             '// Include intent parameter for better responses\nn8n_update_partial_workflow({id: "abc", intent: "Add error handling for API failures", operations: [{type: "addConnection", source: "HTTP Request", target: "Error Handler"}]})',
             '// Add a basic node (minimal configuration)\nn8n_update_partial_workflow({id: "abc", operations: [{type: "addNode", node: {name: "Process Data", type: "n8n-nodes-base.set", position: [400, 300], parameters: {}}}]})',

dist/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.js.map

@@ -1 +1 @@
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dist/mcp/tools-n8n-manager.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"tools-n8n-manager.d.ts","sourceRoot":"","sources":["../../src/mcp/tools-n8n-manager.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,cAAc,EAAE,MAAM,UAAU,CAAC;AAQ1C,eAAO,MAAM,kBAAkB,EAAE,cAAc,EAogB9C,CAAC"}
+{"version":3,"file":"tools-n8n-manager.d.ts","sourceRoot":"","sources":["../../src/mcp/tools-n8n-manager.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,cAAc,EAAE,MAAM,UAAU,CAAC;AAQ1C,eAAO,MAAM,kBAAkB,EAAE,cAAc,EAmf9C,CAAC"}

dist/mcp/tools-n8n-manager.js

@@ -336,8 +336,8 @@ exports.n8nManagementTools = [
                 },
                 mode: {
                     type: 'string',
-                    enum: ['preview', 'summary', 'filtered', 'full', 'error'],
+                    enum: ['preview', 'summary', 'filtered', 'full'],
-                    description: 'For action=get: preview=structure only, summary=2 items (default), filtered=custom, full=all data, error=optimized error debugging'
+                    description: 'For action=get: preview=structure only, summary=2 items (default), filtered=custom, full=all data'
                 },
                 nodeNames: {
                     type: 'array',
@@ -352,22 +352,6 @@ exports.n8nManagementTools = [
                     type: 'boolean',
                     description: 'For action=get: include input data in addition to output (default: false)'
                 },
-                errorItemsLimit: {
-                    type: 'number',
-                    description: 'For action=get with mode=error: sample items from upstream node (default: 2, max: 100)'
-                },
-                includeStackTrace: {
-                    type: 'boolean',
-                    description: 'For action=get with mode=error: include full stack trace (default: false, shows truncated)'
-                },
-                includeExecutionPath: {
-                    type: 'boolean',
-                    description: 'For action=get with mode=error: include execution path leading to error (default: true)'
-                },
-                fetchWorkflow: {
-                    type: 'boolean',
-                    description: 'For action=get with mode=error: fetch workflow for accurate upstream detection (default: true)'
-                },
                 limit: {
                     type: 'number',
                     description: 'For action=list: number of executions to return (1-100, default: 100)'

dist/parsers/node-parser.d.ts

@@ -17,9 +17,6 @@ export interface ParsedNode {
     documentation?: string;
     outputs?: any[];
     outputNames?: string[];
-    isToolVariant?: boolean;
-    toolVariantOf?: string;
-    hasToolVariant?: boolean;
 }
 export declare class NodeParser {
     private propertyExtractor;

dist/parsers/node-parser.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"node-parser.d.ts","sourceRoot":"","sources":["../../src/parsers/node-parser.ts"],"names":[],"mappings":"AACA,OAAO,KAAK,EACV,SAAS,EAEV,MAAM,qBAAqB,CAAC;AAQ7B,MAAM,WAAW,UAAU;IACzB,KAAK,EAAE,aAAa,GAAG,cAAc,CAAC;IACtC,QAAQ,EAAE,MAAM,CAAC;IACjB,WAAW,EAAE,MAAM,CAAC;IACpB,WAAW,CAAC,EAAE,MAAM,CAAC;IACrB,QAAQ,CAAC,EAAE,MAAM,CAAC;IAClB,UAAU,EAAE,GAAG,EAAE,CAAC;IAClB,WAAW,EAAE,GAAG,EAAE,CAAC;IACnB,QAAQ,EAAE,OAAO,CAAC;IAClB,SAAS,EAAE,OAAO,CAAC;IACnB,SAAS,EAAE,OAAO,CAAC;IACnB,UAAU,EAAE,GAAG,EAAE,CAAC;IAClB,OAAO,CAAC,EAAE,MAAM,CAAC;IACjB,WAAW,EAAE,OAAO,CAAC;IACrB,WAAW,EAAE,MAAM,CAAC;IACpB,aAAa,CAAC,EAAE,MAAM,CAAC;IACvB,OAAO,CAAC,EAAE,GAAG,EAAE,CAAC;IAChB,WAAW,CAAC,EAAE,MAAM,EAAE,CAAC;CACxB;AAED,qBAAa,UAAU;IACrB,OAAO,CAAC,iBAAiB,CAA2B;IACpD,OAAO,CAAC,gBAAgB,CAA0B;IAElD,KAAK,CAAC,SAAS,EAAE,SAAS,EAAE,WAAW,EAAE,MAAM,GAAG,UAAU;IA0B5D,OAAO,CAAC,kBAAkB;IAoD1B,OAAO,CAAC,WAAW;IAKnB,OAAO,CAAC,eAAe;IAiBvB,OAAO,CAAC,eAAe;IAOvB,OAAO,CAAC,aAAa;IAkBrB,OAAO,CAAC,aAAa;IAyBrB,OAAO,CAAC,cAAc;IA0FtB,OAAO,CAAC,eAAe;IA2CvB,OAAO,CAAC,cAAc;CAsDvB"}

dist/scripts/rebuild.js

@@ -39,7 +39,6 @@ const node_loader_1 = require("../loaders/node-loader");
 const node_parser_1 = require("../parsers/node-parser");
 const docs_mapper_1 = require("../mappers/docs-mapper");
 const node_repository_1 = require("../database/node-repository");
-const tool_variant_generator_1 = require("../services/tool-variant-generator");
 const template_sanitizer_1 = require("../utils/template-sanitizer");
 const fs = __importStar(require("fs"));
 const path = __importStar(require("path"));
@@ -51,7 +50,6 @@ async function rebuild() {
     const parser = new node_parser_1.NodeParser();
     const mapper = new docs_mapper_1.DocsMapper();
     const repository = new node_repository_1.NodeRepository(db);
-    const toolVariantGenerator = new tool_variant_generator_1.ToolVariantGenerator();
     const schema = fs.readFileSync(path.join(__dirname, '../../src/database/schema.sql'), 'utf8');
     db.exec(schema);
     db.exec('DELETE FROM nodes');
@@ -66,8 +64,7 @@ async function rebuild() {
         webhooks: 0,
         withProperties: 0,
         withOperations: 0,
-        withDocs: 0,
+        withDocs: 0
-        toolVariants: 0
     };
     console.log('🔄 Processing nodes...');
     const processedNodes = [];
@@ -82,18 +79,6 @@ async function rebuild() {
             }
             const docs = await mapper.fetchDocumentation(parsed.nodeType);
             parsed.documentation = docs || undefined;
-            if (parsed.isAITool && !parsed.isTrigger) {
-                const toolVariant = toolVariantGenerator.generateToolVariant(parsed);
-                if (toolVariant) {
-                    parsed.hasToolVariant = true;
-                    processedNodes.push({
-                        parsed: toolVariant,
-                        docs: undefined,
-                        nodeName: `${nodeName}Tool`
-                    });
-                    stats.toolVariants++;
-                }
-            }
             processedNodes.push({ parsed, docs: docs || undefined, nodeName });
         }
         catch (error) {
@@ -150,7 +135,6 @@ async function rebuild() {
     console.log(`   Successful: ${stats.successful}`);
     console.log(`   Failed: ${stats.failed}`);
     console.log(`   AI Tools: ${stats.aiTools}`);
-    console.log(`   Tool Variants: ${stats.toolVariants}`);
     console.log(`   Triggers: ${stats.triggers}`);
     console.log(`   Webhooks: ${stats.webhooks}`);
     console.log(`   With Properties: ${stats.withProperties}`);
@@ -181,7 +165,6 @@ async function rebuild() {
     console.log('\n✨ Rebuild complete!');
     db.close();
 }
-const MIN_EXPECTED_TOOL_VARIANTS = 200;
 function validateDatabase(repository) {
     const issues = [];
     try {
@@ -209,13 +192,6 @@ function validateDatabase(repository) {
         if (aiTools.length === 0) {
             issues.push('No AI tools found - check detection logic');
         }
-        const toolVariantCount = repository.getToolVariantCount();
-        if (toolVariantCount === 0) {
-            issues.push('No Tool variants found - check ToolVariantGenerator');
-        }
-        else if (toolVariantCount < MIN_EXPECTED_TOOL_VARIANTS) {
-            issues.push(`Only ${toolVariantCount} Tool variants found - expected at least ${MIN_EXPECTED_TOOL_VARIANTS}`);
-        }
         const ftsTableCheck = db.prepare(`
       SELECT name FROM sqlite_master
       WHERE type='table' AND name='nodes_fts'

dist/services/config-validator.d.ts

@@ -30,9 +30,7 @@ export declare class ConfigValidator {
     }>): ValidationResult[];
     private static checkRequiredProperties;
     private static getPropertyVisibility;
-    private static evaluateCondition;
+    protected static isPropertyVisible(prop: any, config: Record<string, any>): boolean;
-    private static valueMatches;
-    static isPropertyVisible(prop: any, config: Record<string, any>): boolean;
     private static validatePropertyTypes;
     private static performNodeSpecificValidation;
     private static validateHttpRequest;

dist/services/config-validator.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"config-validator.d.ts","sourceRoot":"","sources":["../../src/services/config-validator.ts"],"names":[],"mappings":"AASA,MAAM,WAAW,gBAAgB;IAC/B,KAAK,EAAE,OAAO,CAAC;IACf,MAAM,EAAE,eAAe,EAAE,CAAC;IAC1B,QAAQ,EAAE,iBAAiB,EAAE,CAAC;IAC9B,WAAW,EAAE,MAAM,EAAE,CAAC;IACtB,iBAAiB,EAAE,MAAM,EAAE,CAAC;IAC5B,gBAAgB,EAAE,MAAM,EAAE,CAAC;IAC3B,OAAO,CAAC,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,CAAC;CAC/B;AAED,MAAM,WAAW,eAAe;IAC9B,IAAI,EAAE,kBAAkB,GAAG,cAAc,GAAG,eAAe,GAAG,cAAc,GAAG,uBAAuB,GAAG,cAAc,CAAC;IACxH,QAAQ,EAAE,MAAM,CAAC;IACjB,OAAO,EAAE,MAAM,CAAC;IAChB,GAAG,CAAC,EAAE,MAAM,CAAC;IACb,UAAU,CAAC,EAAE,MAAM,CAAC;CACrB;AAED,MAAM,WAAW,iBAAiB;IAChC,IAAI,EAAE,gBAAgB,GAAG,YAAY,GAAG,aAAa,GAAG,UAAU,GAAG,eAAe,GAAG,eAAe,CAAC;IACvG,QAAQ,CAAC,EAAE,MAAM,CAAC;IAClB,OAAO,EAAE,MAAM,CAAC;IAChB,UAAU,CAAC,EAAE,MAAM,CAAC;CACrB;AAED,qBAAa,eAAe;IAI1B,OAAO,CAAC,MAAM,CAAC,QAAQ,CAAC,aAAa,CAA4C;IAKjF,MAAM,CAAC,QAAQ,CACb,QAAQ,EAAE,MAAM,EAChB,MAAM,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,EAC3B,UAAU,EAAE,GAAG,EAAE,EACjB,gBAAgB,CAAC,EAAE,GAAG,CAAC,MAAM,CAAC,GAC7B,gBAAgB;IAsDnB,MAAM,CAAC,aAAa,CAClB,OAAO,EAAE,KAAK,CAAC;QACb,QAAQ,EAAE,MAAM,CAAC;QACjB,MAAM,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,CAAC;QAC5B,UAAU,EAAE,GAAG,EAAE,CAAC;KACnB,CAAC,GACD,gBAAgB,EAAE;IASrB,OAAO,CAAC,MAAM,CAAC,uBAAuB;IA0CtC,OAAO,CAAC,MAAM,CAAC,qBAAqB;IAsBpC,OAAO,CAAC,MAAM,CAAC,iBAAiB;IAgDhC,OAAO,CAAC,MAAM,CAAC,YAAY;WAab,iBAAiB,CAAC,IAAI,EAAE,GAAG,EAAE,MAAM,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,GAAG,OAAO;IA2ChF,OAAO,CAAC,MAAM,CAAC,qBAAqB;IAoIpC,OAAO,CAAC,MAAM,CAAC,6BAA6B;IA+B5C,OAAO,CAAC,MAAM,CAAC,mBAAmB;IAoElC,OAAO,CAAC,MAAM,CAAC,eAAe;IAc9B,OAAO,CAAC,MAAM,CAAC,gBAAgB;IAoC/B,OAAO,CAAC,MAAM,CAAC,YAAY;IAyC3B,OAAO,CAAC,MAAM,CAAC,iBAAiB;IAgEhC,OAAO,CAAC,MAAM,CAAC,qBAAqB;IAmCpC,OAAO,CAAC,MAAM,CAAC,wBAAwB;IA6BvC,OAAO,CAAC,MAAM,CAAC,wBAAwB;IA4CvC,OAAO,CAAC,MAAM,CAAC,oBAAoB;IAgEnC,OAAO,CAAC,MAAM,CAAC,uBAAuB;CAmOvC"}
+{"version":3,"file":"config-validator.d.ts","sourceRoot":"","sources":["../../src/services/config-validator.ts"],"names":[],"mappings":"AASA,MAAM,WAAW,gBAAgB;IAC/B,KAAK,EAAE,OAAO,CAAC;IACf,MAAM,EAAE,eAAe,EAAE,CAAC;IAC1B,QAAQ,EAAE,iBAAiB,EAAE,CAAC;IAC9B,WAAW,EAAE,MAAM,EAAE,CAAC;IACtB,iBAAiB,EAAE,MAAM,EAAE,CAAC;IAC5B,gBAAgB,EAAE,MAAM,EAAE,CAAC;IAC3B,OAAO,CAAC,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,CAAC;CAC/B;AAED,MAAM,WAAW,eAAe;IAC9B,IAAI,EAAE,kBAAkB,GAAG,cAAc,GAAG,eAAe,GAAG,cAAc,GAAG,uBAAuB,GAAG,cAAc,CAAC;IACxH,QAAQ,EAAE,MAAM,CAAC;IACjB,OAAO,EAAE,MAAM,CAAC;IAChB,GAAG,CAAC,EAAE,MAAM,CAAC;IACb,UAAU,CAAC,EAAE,MAAM,CAAC;CACrB;AAED,MAAM,WAAW,iBAAiB;IAChC,IAAI,EAAE,gBAAgB,GAAG,YAAY,GAAG,aAAa,GAAG,UAAU,GAAG,eAAe,GAAG,eAAe,CAAC;IACvG,QAAQ,CAAC,EAAE,MAAM,CAAC;IAClB,OAAO,EAAE,MAAM,CAAC;IAChB,UAAU,CAAC,EAAE,MAAM,CAAC;CACrB;AAED,qBAAa,eAAe;IAI1B,OAAO,CAAC,MAAM,CAAC,QAAQ,CAAC,aAAa,CAA4C;IAKjF,MAAM,CAAC,QAAQ,CACb,QAAQ,EAAE,MAAM,EAChB,MAAM,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,EAC3B,UAAU,EAAE,GAAG,EAAE,EACjB,gBAAgB,CAAC,EAAE,GAAG,CAAC,MAAM,CAAC,GAC7B,gBAAgB;IAsDnB,MAAM,CAAC,aAAa,CAClB,OAAO,EAAE,KAAK,CAAC;QACb,QAAQ,EAAE,MAAM,CAAC;QACjB,MAAM,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,CAAC;QAC5B,UAAU,EAAE,GAAG,EAAE,CAAC;KACnB,CAAC,GACD,gBAAgB,EAAE;IASrB,OAAO,CAAC,MAAM,CAAC,uBAAuB;IA0CtC,OAAO,CAAC,MAAM,CAAC,qBAAqB;IAqBpC,SAAS,CAAC,MAAM,CAAC,iBAAiB,CAAC,IAAI,EAAE,GAAG,EAAE,MAAM,EAAE,MAAM,CAAC,MAAM,EAAE,GAAG,CAAC,GAAG,OAAO;IAiCnF,OAAO,CAAC,MAAM,CAAC,qBAAqB;IAoIpC,OAAO,CAAC,MAAM,CAAC,6BAA6B;IA+B5C,OAAO,CAAC,MAAM,CAAC,mBAAmB;IAoElC,OAAO,CAAC,MAAM,CAAC,eAAe;IAc9B,OAAO,CAAC,MAAM,CAAC,gBAAgB;IAoC/B,OAAO,CAAC,MAAM,CAAC,YAAY;IAyC3B,OAAO,CAAC,MAAM,CAAC,iBAAiB;IAgEhC,OAAO,CAAC,MAAM,CAAC,qBAAqB;IAmCpC,OAAO,CAAC,MAAM,CAAC,wBAAwB;IA6BvC,OAAO,CAAC,MAAM,CAAC,wBAAwB;IA4CvC,OAAO,CAAC,MAAM,CAAC,oBAAoB;IAgEnC,OAAO,CAAC,MAAM,CAAC,uBAAuB;CAmOvC"}

dist/services/config-validator.js

@@ -83,57 +83,6 @@ class ConfigValidator {
         }
         return { visible, hidden };
     }
-    static evaluateCondition(condition, configValue) {
-        const cnd = condition._cnd;
-        if ('eq' in cnd)
-            return configValue === cnd.eq;
-        if ('not' in cnd)
-            return configValue !== cnd.not;
-        if ('gte' in cnd)
-            return configValue >= cnd.gte;
-        if ('lte' in cnd)
-            return configValue <= cnd.lte;
-        if ('gt' in cnd)
-            return configValue > cnd.gt;
-        if ('lt' in cnd)
-            return configValue < cnd.lt;
-        if ('between' in cnd) {
-            const between = cnd.between;
-            if (!between || typeof between.from === 'undefined' || typeof between.to === 'undefined') {
-                return false;
-            }
-            return configValue >= between.from && configValue <= between.to;
-        }
-        if ('startsWith' in cnd) {
-            return typeof configValue === 'string' && configValue.startsWith(cnd.startsWith);
-        }
-        if ('endsWith' in cnd) {
-            return typeof configValue === 'string' && configValue.endsWith(cnd.endsWith);
-        }
-        if ('includes' in cnd) {
-            return typeof configValue === 'string' && configValue.includes(cnd.includes);
-        }
-        if ('regex' in cnd) {
-            if (typeof configValue !== 'string')
-                return false;
-            try {
-                return new RegExp(cnd.regex).test(configValue);
-            }
-            catch {
-                return false;
-            }
-        }
-        if ('exists' in cnd) {
-            return configValue !== undefined && configValue !== null;
-        }
-        return false;
-    }
-    static valueMatches(expectedValue, configValue) {
-        if (expectedValue && typeof expectedValue === 'object' && '_cnd' in expectedValue) {
-            return this.evaluateCondition(expectedValue, configValue);
-        }
-        return configValue === expectedValue;
-    }
     static isPropertyVisible(prop, config) {
         if (!prop.displayOptions)
             return true;
@@ -141,8 +90,7 @@ class ConfigValidator {
             for (const [key, values] of Object.entries(prop.displayOptions.show)) {
                 const configValue = config[key];
                 const expectedValues = Array.isArray(values) ? values : [values];
-                const anyMatch = expectedValues.some(expected => this.valueMatches(expected, configValue));
+                if (!expectedValues.includes(configValue)) {
-                if (!anyMatch) {
                     return false;
                 }
             }
@@ -151,8 +99,7 @@ class ConfigValidator {
             for (const [key, values] of Object.entries(prop.displayOptions.hide)) {
                 const configValue = config[key];
                 const expectedValues = Array.isArray(values) ? values : [values];
-                const anyMatch = expectedValues.some(expected => this.valueMatches(expected, configValue));
+                if (expectedValues.includes(configValue)) {
-                if (anyMatch) {
                     return false;
                 }
             }

dist/services/execution-processor.d.ts

@@ -1,8 +1,8 @@
-import { Execution, ExecutionPreview, ExecutionRecommendation, ExecutionFilterOptions, FilteredExecutionResponse, Workflow } from '../types/n8n-api';
+import { Execution, ExecutionPreview, ExecutionRecommendation, ExecutionFilterOptions, FilteredExecutionResponse } from '../types/n8n-api';
 export declare function generatePreview(execution: Execution): {
     preview: ExecutionPreview;
     recommendation: ExecutionRecommendation;
 };
-export declare function filterExecutionData(execution: Execution, options: ExecutionFilterOptions, workflow?: Workflow): FilteredExecutionResponse;
+export declare function filterExecutionData(execution: Execution, options: ExecutionFilterOptions): FilteredExecutionResponse;
-export declare function processExecution(execution: Execution, options?: ExecutionFilterOptions, workflow?: Workflow): FilteredExecutionResponse | Execution;
+export declare function processExecution(execution: Execution, options?: ExecutionFilterOptions): FilteredExecutionResponse | Execution;
 //# sourceMappingURL=execution-processor.d.ts.map

dist/services/execution-processor.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"execution-processor.d.ts","sourceRoot":"","sources":["../../src/services/execution-processor.ts"],"names":[],"mappings":"AAaA,OAAO,EACL,SAAS,EAET,gBAAgB,EAEhB,uBAAuB,EACvB,sBAAsB,EACtB,yBAAyB,EAGzB,QAAQ,EACT,MAAM,kBAAkB,CAAC;AAgH1B,wBAAgB,eAAe,CAAC,SAAS,EAAE,SAAS,GAAG;IACrD,OAAO,EAAE,gBAAgB,CAAC;IAC1B,cAAc,EAAE,uBAAuB,CAAC;CACzC,CA2EA;AAoID,wBAAgB,mBAAmB,CACjC,SAAS,EAAE,SAAS,EACpB,OAAO,EAAE,sBAAsB,EAC/B,QAAQ,CAAC,EAAE,QAAQ,GAClB,yBAAyB,CAsL3B;AAMD,wBAAgB,gBAAgB,CAC9B,SAAS,EAAE,SAAS,EACpB,OAAO,GAAE,sBAA2B,EACpC,QAAQ,CAAC,EAAE,QAAQ,GAClB,yBAAyB,GAAG,SAAS,CAOvC"}
+{"version":3,"file":"execution-processor.d.ts","sourceRoot":"","sources":["../../src/services/execution-processor.ts"],"names":[],"mappings":"AAaA,OAAO,EACL,SAAS,EAET,gBAAgB,EAEhB,uBAAuB,EACvB,sBAAsB,EACtB,yBAAyB,EAG1B,MAAM,kBAAkB,CAAC;AA+G1B,wBAAgB,eAAe,CAAC,SAAS,EAAE,SAAS,GAAG;IACrD,OAAO,EAAE,gBAAgB,CAAC;IAC1B,cAAc,EAAE,uBAAuB,CAAC;CACzC,CA2EA;AAoID,wBAAgB,mBAAmB,CACjC,SAAS,EAAE,SAAS,EACpB,OAAO,EAAE,sBAAsB,GAC9B,yBAAyB,CA2J3B;AAMD,wBAAgB,gBAAgB,CAC9B,SAAS,EAAE,SAAS,EACpB,OAAO,GAAE,sBAA2B,GACnC,yBAAyB,GAAG,SAAS,CAOvC"}

dist/services/execution-processor.js

@@ -4,7 +4,6 @@ exports.generatePreview = generatePreview;
 exports.filterExecutionData = filterExecutionData;
 exports.processExecution = processExecution;
 const logger_1 = require("../utils/logger");
-const error_execution_processor_1 = require("./error-execution-processor");
 const THRESHOLDS = {
     CHAR_SIZE_BYTES: 2,
     OVERHEAD_PER_OBJECT: 50,
@@ -232,7 +231,7 @@ function truncateItems(items, limit) {
         },
     };
 }
-function filterExecutionData(execution, options, workflow) {
+function filterExecutionData(execution, options) {
     const mode = options.mode || 'summary';
     let itemsLimit = options.itemsLimit !== undefined ? options.itemsLimit : 2;
     if (itemsLimit !== -1) {
@@ -266,27 +265,6 @@ function filterExecutionData(execution, options, workflow) {
         response.recommendation = recommendation;
         return response;
     }
-    if (mode === 'error') {
-        const errorAnalysis = (0, error_execution_processor_1.processErrorExecution)(execution, {
-            itemsLimit: options.errorItemsLimit ?? 2,
-            includeStackTrace: options.includeStackTrace ?? false,
-            includeExecutionPath: options.includeExecutionPath !== false,
-            workflow
-        });
-        const runData = execution.data?.resultData?.runData || {};
-        const executedNodes = Object.keys(runData).length;
-        response.errorInfo = errorAnalysis;
-        response.summary = {
-            totalNodes: executedNodes,
-            executedNodes,
-            totalItems: 0,
-            hasMoreData: false
-        };
-        if (execution.data?.resultData?.error) {
-            response.error = execution.data.resultData.error;
-        }
-        return response;
-    }
     if (!execution.data?.resultData?.runData) {
         response.summary = {
             totalNodes: 0,
@@ -372,10 +350,10 @@ function filterExecutionData(execution, options, workflow) {
     }
     return response;
 }
-function processExecution(execution, options = {}, workflow) {
+function processExecution(execution, options = {}) {
     if (!options.mode && !options.nodeNames && options.itemsLimit === undefined) {
         return execution;
     }
-    return filterExecutionData(execution, options, workflow);
+    return filterExecutionData(execution, options);
 }
 //# sourceMappingURL=execution-processor.js.map

dist/services/n8n-validation.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"n8n-validation.d.ts","sourceRoot":"","sources":["../../src/services/n8n-validation.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,CAAC,EAAE,MAAM,KAAK,CAAC;AACxB,OAAO,EAAE,YAAY,EAAE,kBAAkB,EAAE,QAAQ,EAAE,MAAM,kBAAkB,CAAC;AAM9E,eAAO,MAAM,kBAAkB;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;EAiB7B,CAAC;AAkBH,eAAO,MAAM,wBAAwB;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAUpC,CAAC;AAEF,eAAO,MAAM,sBAAsB;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;EAWjC,CAAC;AAGH,eAAO,MAAM,uBAAuB;;;;;;CAMnC,CAAC;AAGF,wBAAgB,oBAAoB,CAAC,IAAI,EAAE,OAAO,GAAG,YAAY,CAEhE;AAED,wBAAgB,2BAA2B,CAAC,WAAW,EAAE,OAAO,GAAG,kBAAkB,CAEpF;AAED,wBAAgB,wBAAwB,CAAC,QAAQ,EAAE,OAAO,GAAG,CAAC,CAAC,KAAK,CAAC,OAAO,sBAAsB,CAAC,CAElG;AAGD,wBAAgB,sBAAsB,CAAC,QAAQ,EAAE,OAAO,CAAC,QAAQ,CAAC,GAAG,OAAO,CAAC,QAAQ,CAAC,CAsBrF;AAiBD,wBAAgB,sBAAsB,CAAC,QAAQ,EAAE,QAAQ,GAAG,OAAO,CAAC,QAAQ,CAAC,CAoE5E;AAGD,wBAAgB,yBAAyB,CAAC,QAAQ,EAAE,OAAO,CAAC,QAAQ,CAAC,GAAG,MAAM,EAAE,CAyP/E;AAGD,wBAAgB,iBAAiB,CAAC,QAAQ,EAAE,QAAQ,GAAG,OAAO,CAK7D;AAMD,wBAAgB,+BAA+B,CAAC,IAAI,EAAE,YAAY,GAAG,MAAM,EAAE,CA+F5E;AAMD,wBAAgB,yBAAyB,CAAC,QAAQ,EAAE,GAAG,EAAE,IAAI,EAAE,MAAM,GAAG,MAAM,EAAE,CA0D/E;AAGD,wBAAgB,aAAa,CAAC,QAAQ,EAAE,QAAQ,GAAG,MAAM,GAAG,IAAI,CAmB/D;AAGD,wBAAgB,2BAA2B,IAAI,MAAM,CA6CpD;AAGD,wBAAgB,yBAAyB,CAAC,MAAM,EAAE,MAAM,EAAE,GAAG,MAAM,EAAE,CAmBpE"}

dist/services/n8n-validation.js

@@ -152,23 +152,17 @@ function validateWorkflowStructure(workflow) {
         }
         else if (connectionCount > 0 || executableNodes.length > 1) {
             const connectedNodes = new Set();
-            const ALL_CONNECTION_TYPES = ['main', 'error', 'ai_tool', 'ai_languageModel', 'ai_memory', 'ai_embedding', 'ai_vectorStore'];
             Object.entries(workflow.connections).forEach(([sourceName, connection]) => {
                 connectedNodes.add(sourceName);
-                ALL_CONNECTION_TYPES.forEach(connType => {
+                if (connection.main && Array.isArray(connection.main)) {
-                    const connData = connection[connType];
+                    connection.main.forEach((outputs) => {
-                    if (connData && Array.isArray(connData)) {
+                        if (Array.isArray(outputs)) {
-                        connData.forEach((outputs) => {
+                            outputs.forEach((target) => {
-                            if (Array.isArray(outputs)) {
+                                connectedNodes.add(target.node);
-                                outputs.forEach((target) => {
+                            });
-                                    if (target?.node) {
+                        }
-                                        connectedNodes.add(target.node);
+                    });
-                                    }
+                }
-                                });
-                            }
-                        });
-                    }
-                });
             });
             const disconnectedNodes = workflow.nodes.filter(node => {
                 if ((0, node_classification_1.isNonExecutableNode)(node.type)) {
@@ -177,9 +171,7 @@ function validateWorkflowStructure(workflow) {
                 const isConnected = connectedNodes.has(node.name);
                 const isNodeTrigger = (0, node_type_utils_1.isTriggerNode)(node.type);
                 if (isNodeTrigger) {
-                    const hasOutgoingConnections = !!workflow.connections?.[node.name];
+                    return !workflow.connections?.[node.name];
-                    const hasInboundConnections = isConnected;
-                    return !hasOutgoingConnections && !hasInboundConnections;
                 }
                 return !isConnected;
             });
@@ -225,9 +217,12 @@ function validateWorkflowStructure(workflow) {
     }
     if (workflow.active === true && workflow.nodes && workflow.nodes.length > 0) {
         const activatableTriggers = workflow.nodes.filter(node => !node.disabled && (0, node_type_utils_1.isActivatableTrigger)(node.type));
-        if (activatableTriggers.length === 0) {
+        const executeWorkflowTriggers = workflow.nodes.filter(node => !node.disabled && node.type.toLowerCase().includes('executeworkflow'));
-            errors.push('Cannot activate workflow: No activatable trigger nodes found. ' +
+        if (activatableTriggers.length === 0 && executeWorkflowTriggers.length > 0) {
-                'Workflows must have at least one enabled trigger node (webhook, schedule, executeWorkflowTrigger, etc.).');
+            const triggerNames = executeWorkflowTriggers.map(n => n.name).join(', ');
+            errors.push(`Cannot activate workflow with only Execute Workflow Trigger nodes (${triggerNames}). ` +
+                'Execute Workflow Trigger can only be invoked by other workflows, not activated. ' +
+                'Either deactivate the workflow or add a webhook/schedule/polling trigger.');
         }
     }
     if (workflow.nodes && workflow.connections) {

dist/services/workflow-auto-fixer.d.ts

@@ -5,7 +5,7 @@ import { WorkflowDiffOperation } from '../types/workflow-diff';
 import { Workflow } from '../types/n8n-api';
 import { PostUpdateGuidance } from './post-update-validator';
 export type FixConfidenceLevel = 'high' | 'medium' | 'low';
-export type FixType = 'expression-format' | 'typeversion-correction' | 'error-output-config' | 'node-type-correction' | 'webhook-missing-path' | 'typeversion-upgrade' | 'version-migration' | 'tool-variant-correction';
+export type FixType = 'expression-format' | 'typeversion-correction' | 'error-output-config' | 'node-type-correction' | 'webhook-missing-path' | 'typeversion-upgrade' | 'version-migration';
 export interface AutoFixConfig {
     applyFixes: boolean;
     fixTypes?: FixType[];
@@ -62,7 +62,6 @@ export declare class WorkflowAutoFixer {
     private processErrorOutputFixes;
     private processNodeTypeFixes;
     private processWebhookPathFixes;
-    private processToolVariantFixes;
     private setNestedValue;
     private filterByConfidence;
     private filterOperationsByFixes;

dist/services/workflow-auto-fixer.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"workflow-auto-fixer.d.ts","sourceRoot":"","sources":["../../src/services/workflow-auto-fixer.ts"],"names":[],"mappings":"AAQA,OAAO,EAAE,wBAAwB,EAAE,MAAM,sBAAsB,CAAC;AAChE,OAAO,EAAE,qBAAqB,EAAE,MAAM,+BAA+B,CAAC;AAEtE,OAAO,EAAE,cAAc,EAAE,MAAM,6BAA6B,CAAC;AAC7D,OAAO,EACL,qBAAqB,EAEtB,MAAM,wBAAwB,CAAC;AAChC,OAAO,EAAgB,QAAQ,EAAE,MAAM,kBAAkB,CAAC;AAK1D,OAAO,EAAuB,kBAAkB,EAAE,MAAM,yBAAyB,CAAC;AAIlF,MAAM,MAAM,kBAAkB,GAAG,MAAM,GAAG,QAAQ,GAAG,KAAK,CAAC;AAC3D,MAAM,MAAM,OAAO,GACf,mBAAmB,GACnB,wBAAwB,GACxB,qBAAqB,GACrB,sBAAsB,GACtB,sBAAsB,GACtB,qBAAqB,GACrB,mBAAmB,CAAC;AAExB,MAAM,WAAW,aAAa;IAC5B,UAAU,EAAE,OAAO,CAAC;IACpB,QAAQ,CAAC,EAAE,OAAO,EAAE,CAAC;IACrB,mBAAmB,CAAC,EAAE,kBAAkB,CAAC;IACzC,QAAQ,CAAC,EAAE,MAAM,CAAC;CACnB;AAED,MAAM,WAAW,YAAY;IAC3B,IAAI,EAAE,MAAM,CAAC;IACb,KAAK,EAAE,MAAM,CAAC;IACd,IAAI,EAAE,OAAO,CAAC;IACd,MAAM,EAAE,GAAG,CAAC;IACZ,KAAK,EAAE,GAAG,CAAC;IACX,UAAU,EAAE,kBAAkB,CAAC;IAC/B,WAAW,EAAE,MAAM,CAAC;CACrB;AAED,MAAM,WAAW,aAAa;IAC5B,UAAU,EAAE,qBAAqB,EAAE,CAAC;IACpC,KAAK,EAAE,YAAY,EAAE,CAAC;IACtB,OAAO,EAAE,MAAM,CAAC;IAChB,KAAK,EAAE;QACL,KAAK,EAAE,MAAM,CAAC;QACd,MAAM,EAAE,MAAM,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;QAChC,YAAY,EAAE,MAAM,CAAC,kBAAkB,EAAE,MAAM,CAAC,CAAC;KAClD,CAAC;IACF,kBAAkB,CAAC,EAAE,kBAAkB,EAAE,CAAC;CAC3C;AAED,MAAM,WAAW,eAAgB,SAAQ,qBAAqB;IAC5D,QAAQ,EAAE,MAAM,CAAC;IACjB,MAAM,EAAE,MAAM,CAAC;CAChB;AAKD,wBAAgB,iBAAiB,CAAC,KAAK,EAAE,qBAAqB,GAAG,KAAK,IAAI,eAAe,CAIxF;AAKD,MAAM,WAAW,aAAa;IAC5B,IAAI,EAAE,OAAO,CAAC;IACd,MAAM,CAAC,EAAE,MAAM,CAAC;IAChB,QAAQ,CAAC,EAAE,MAAM,CAAC;IAClB,OAAO,EAAE,MAAM,CAAC;IAChB,WAAW,CAAC,EAAE,KAAK,CAAC;QAClB,QAAQ,EAAE,MAAM,CAAC;QACjB,UAAU,EAAE,MAAM,CAAC;QACnB,MAAM,EAAE,MAAM,CAAC;KAChB,CAAC,CAAC;CACJ;AAED,qBAAa,iBAAiB;IAC5B,OAAO,CAAC,QAAQ,CAAC,aAAa,CAI5B;IACF,OAAO,CAAC,iBAAiB,CAAsC;IAC/D,OAAO,CAAC,cAAc,CAAmC;IACzD,OAAO,CAAC,sBAAsB,CAAuC;IACrE,OAAO,CAAC,gBAAgB,CAAqC;IAC7D,OAAO,CAAC,mBAAmB,CAAoC;gBAEnD,UAAU,CAAC,EAAE,cAAc;IAajC,aAAa,CACjB,QAAQ,EAAE,QAAQ,EAClB,gBAAgB,EAAE,wBAAwB,EAC1C,YAAY,GAAE,qBAAqB,EAAO,EAC1C,MAAM,GAAE,OAAO,CAAC,aAAa,CAAM,GAClC,OAAO,CAAC,aAAa,CAAC;IAwEzB,OAAO,CAAC,4BAA4B;IAqEpC,OAAO,CAAC,uBAAuB;IA8C/B,OAAO,CAAC,uBAAuB;IA0C/B,OAAO,CAAC,oBAAoB;IAkD5B,OAAO,CAAC,uBAAuB;IA+D/B,OAAO,CAAC,cAAc;IAmGtB,OAAO,CAAC,kBAAkB;IAkB1B,OAAO,CAAC,uBAAuB;IAiB/B,OAAO,CAAC,cAAc;IA8BtB,OAAO,CAAC,eAAe;YAyCT,0BAA0B;YAmF1B,4BAA4B;CAiF3C"}

dist/services/workflow-auto-fixer.js

@@ -63,9 +63,6 @@ class WorkflowAutoFixer {
         if (!fullConfig.fixTypes || fullConfig.fixTypes.includes('webhook-missing-path')) {
             this.processWebhookPathFixes(validationResult, nodeMap, operations, fixes);
         }
-        if (!fullConfig.fixTypes || fullConfig.fixTypes.includes('tool-variant-correction')) {
-            this.processToolVariantFixes(validationResult, nodeMap, workflow, operations, fixes);
-        }
         if (!fullConfig.fixTypes || fullConfig.fixTypes.includes('typeversion-upgrade')) {
             await this.processVersionUpgradeFixes(workflow, nodeMap, operations, fixes, postUpdateGuidance);
         }
@@ -270,41 +267,6 @@ class WorkflowAutoFixer {
             }
         }
     }
-    processToolVariantFixes(validationResult, nodeMap, _workflow, operations, fixes) {
-        for (const error of validationResult.errors) {
-            if (error.code !== 'WRONG_NODE_TYPE_FOR_AI_TOOL' || !error.fix) {
-                continue;
-            }
-            const fix = error.fix;
-            if (fix.type !== 'tool-variant-correction') {
-                continue;
-            }
-            const nodeName = error.nodeName || error.nodeId;
-            if (!nodeName)
-                continue;
-            const node = nodeMap.get(nodeName);
-            if (!node)
-                continue;
-            fixes.push({
-                node: nodeName,
-                field: 'type',
-                type: 'tool-variant-correction',
-                before: fix.currentType,
-                after: fix.suggestedType,
-                confidence: 'high',
-                description: fix.description || `Replace "${fix.currentType}" with Tool variant "${fix.suggestedType}"`
-            });
-            const operation = {
-                type: 'updateNode',
-                nodeId: nodeName,
-                updates: {
-                    type: fix.suggestedType
-                }
-            };
-            operations.push(operation);
-            logger.info(`Generated tool variant correction for ${nodeName}: ${fix.currentType} → ${fix.suggestedType}`);
-        }
-    }
     setNestedValue(obj, path, value) {
         if (!obj || typeof obj !== 'object') {
             throw new Error('Cannot set value on non-object');
@@ -410,8 +372,7 @@ class WorkflowAutoFixer {
                 'node-type-correction': 0,
                 'webhook-missing-path': 0,
                 'typeversion-upgrade': 0,
-                'version-migration': 0,
+                'version-migration': 0
-                'tool-variant-correction': 0
             },
             byConfidence: {
                 'high': 0,
@@ -451,9 +412,6 @@ class WorkflowAutoFixer {
         if (stats.byType['version-migration'] > 0) {
             parts.push(`${stats.byType['version-migration']} version ${stats.byType['version-migration'] === 1 ? 'migration' : 'migrations'}`);
         }
-        if (stats.byType['tool-variant-correction'] > 0) {
-            parts.push(`${stats.byType['tool-variant-correction']} tool variant ${stats.byType['tool-variant-correction'] === 1 ? 'correction' : 'corrections'}`);
-        }
         if (parts.length === 0) {
             return `Fixed ${stats.total} ${stats.total === 1 ? 'issue' : 'issues'}`;
         }

dist/services/workflow-diff-engine.js

@@ -651,7 +651,7 @@ class WorkflowDiffEngine {
     validateActivateWorkflow(workflow, operation) {
         const activatableTriggers = workflow.nodes.filter(node => !node.disabled && (0, node_type_utils_1.isActivatableTrigger)(node.type));
         if (activatableTriggers.length === 0) {
-            return 'Cannot activate workflow: No activatable trigger nodes found. Workflows must have at least one enabled trigger node (webhook, schedule, executeWorkflowTrigger, etc.).';
+            return 'Cannot activate workflow: No activatable trigger nodes found. Workflows must have at least one enabled trigger node (webhook, schedule, email, etc.). Note: executeWorkflowTrigger cannot activate workflows as they can only be invoked by other workflows.';
         }
         return null;
     }

dist/services/workflow-validator.d.ts

@@ -47,19 +47,12 @@ interface WorkflowJson {
     pinData?: any;
     meta?: any;
 }
-export interface ValidationIssue {
+interface ValidationIssue {
     type: 'error' | 'warning';
     nodeId?: string;
     nodeName?: string;
     message: string;
     details?: any;
-    code?: string;
-    fix?: {
-        type: string;
-        currentType?: string;
-        suggestedType?: string;
-        description?: string;
-    };
 }
 export interface WorkflowValidationResult {
     valid: boolean;
@@ -93,7 +86,6 @@ export declare class WorkflowValidator {
     private validateConnectionOutputs;
     private validateErrorOutputConfiguration;
     private validateAIToolConnection;
-    private validateAIToolSource;
     private hasCycle;
     private validateExpressions;
     private countExpressionsInObject;

dist/services/workflow-validator.d.ts.map

@@ -1 +1 @@
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dist/services/workflow-validator.js

@@ -11,10 +11,8 @@ const node_similarity_service_1 = require("./node-similarity-service");
 const node_type_normalizer_1 = require("../utils/node-type-normalizer");
 const logger_1 = require("../utils/logger");
 const ai_node_validator_1 = require("./ai-node-validator");
-const ai_tool_validators_1 = require("./ai-tool-validators");
 const node_type_utils_1 = require("../utils/node-type-utils");
 const node_classification_1 = require("../utils/node-classification");
-const tool_variant_generator_1 = require("./tool-variant-generator");
 const logger = new logger_1.Logger({ prefix: '[WorkflowValidator]' });
 class WorkflowValidator {
     constructor(nodeRepository, nodeValidator) {
@@ -310,11 +308,7 @@ class WorkflowValidator {
                 if (normalizedType.startsWith('nodes-langchain.')) {
                     continue;
                 }
-                const paramsWithVersion = {
+                const nodeValidation = this.nodeValidator.validateWithMode(node.type, node.parameters, nodeInfo.properties || [], 'operation', profile);
-                    '@version': node.typeVersion || 1,
-                    ...node.parameters
-                };
-                const nodeValidation = this.nodeValidator.validateWithMode(node.type, paramsWithVersion, nodeInfo.properties || [], 'operation', profile);
                 nodeValidation.errors.forEach((error) => {
                     result.errors.push({
                         type: 'error',
@@ -373,7 +367,6 @@ class WorkflowValidator {
                 this.validateConnectionOutputs(sourceName, outputs.error, nodeMap, nodeIdMap, result, 'error');
             }
             if (outputs.ai_tool) {
-                this.validateAIToolSource(sourceNode, result);
                 this.validateConnectionOutputs(sourceName, outputs.ai_tool, nodeMap, nodeIdMap, result, 'ai_tool');
             }
         }
@@ -562,51 +555,6 @@ class WorkflowValidator {
             });
         }
     }
-    validateAIToolSource(sourceNode, result) {
-        const normalizedType = node_type_normalizer_1.NodeTypeNormalizer.normalizeToFullForm(sourceNode.type);
-        if ((0, ai_tool_validators_1.isAIToolSubNode)(normalizedType)) {
-            return;
-        }
-        const nodeInfo = this.nodeRepository.getNode(normalizedType);
-        if (tool_variant_generator_1.ToolVariantGenerator.isToolVariantNodeType(normalizedType)) {
-            if (nodeInfo?.isToolVariant) {
-                return;
-            }
-        }
-        if (!nodeInfo) {
-            return;
-        }
-        if (nodeInfo.hasToolVariant) {
-            const toolVariantType = tool_variant_generator_1.ToolVariantGenerator.getToolVariantNodeType(normalizedType);
-            const workflowToolVariantType = node_type_normalizer_1.NodeTypeNormalizer.toWorkflowFormat(toolVariantType);
-            result.errors.push({
-                type: 'error',
-                nodeId: sourceNode.id,
-                nodeName: sourceNode.name,
-                message: `Node "${sourceNode.name}" uses "${sourceNode.type}" which cannot output ai_tool connections. ` +
-                    `Use the Tool variant "${workflowToolVariantType}" instead for AI Agent integration.`,
-                code: 'WRONG_NODE_TYPE_FOR_AI_TOOL',
-                fix: {
-                    type: 'tool-variant-correction',
-                    currentType: sourceNode.type,
-                    suggestedType: workflowToolVariantType,
-                    description: `Change node type from "${sourceNode.type}" to "${workflowToolVariantType}"`
-                }
-            });
-            return;
-        }
-        if (nodeInfo.isAITool) {
-            return;
-        }
-        result.errors.push({
-            type: 'error',
-            nodeId: sourceNode.id,
-            nodeName: sourceNode.name,
-            message: `Node "${sourceNode.name}" of type "${sourceNode.type}" cannot output ai_tool connections. ` +
-                `Only AI tool nodes (e.g., Calculator, HTTP Request Tool) or Tool variants (e.g., *Tool suffix nodes) can be connected to AI Agents as tools.`,
-            code: 'INVALID_AI_TOOL_SOURCE'
-        });
-    }
     hasCycle(workflow) {
         const visited = new Set();
         const recursionStack = new Set();

dist/telemetry/event-validator.d.ts

@@ -7,13 +7,13 @@ export declare const telemetryEventSchema: z.ZodObject<{
     created_at: z.ZodOptional<z.ZodString>;
 }, "strip", z.ZodTypeAny, {
     properties: Record<string, any>;
-    event: string;
     user_id: string;
+    event: string;
     created_at?: string | undefined;
 }, {
     properties: Record<string, unknown>;
-    event: string;
     user_id: string;
+    event: string;
     created_at?: string | undefined;
 }>;
 export declare const workflowTelemetrySchema: z.ZodObject<{

dist/types/n8n-api.d.ts

@@ -267,7 +267,7 @@ export interface McpToolResponse {
     executionId?: string;
     workflowId?: string;
 }
-export type ExecutionMode = 'preview' | 'summary' | 'filtered' | 'full' | 'error';
+export type ExecutionMode = 'preview' | 'summary' | 'filtered' | 'full';
 export interface ExecutionPreview {
     totalNodes: number;
     executedNodes: number;
@@ -296,9 +296,6 @@ export interface ExecutionFilterOptions {
     itemsLimit?: number;
     includeInputData?: boolean;
     fieldsToInclude?: string[];
-    errorItemsLimit?: number;
-    includeStackTrace?: boolean;
-    includeExecutionPath?: boolean;
 }
 export interface FilteredExecutionResponse {
     id: string;
@@ -319,7 +316,6 @@ export interface FilteredExecutionResponse {
     };
     nodes?: Record<string, FilteredNodeData>;
     error?: Record<string, unknown>;
-    errorInfo?: ErrorAnalysis;
 }
 export interface FilteredNodeData {
     executionTime?: number;
@@ -337,39 +333,4 @@ export interface FilteredNodeData {
         };
     };
 }
-export interface ErrorAnalysis {
-    primaryError: {
-        message: string;
-        errorType: string;
-        nodeName: string;
-        nodeType: string;
-        nodeId?: string;
-        nodeParameters?: Record<string, unknown>;
-        stackTrace?: string;
-    };
-    upstreamContext?: {
-        nodeName: string;
-        nodeType: string;
-        itemCount: number;
-        sampleItems: unknown[];
-        dataStructure: Record<string, unknown>;
-    };
-    executionPath?: Array<{
-        nodeName: string;
-        status: 'success' | 'error' | 'skipped';
-        itemCount: number;
-        executionTime?: number;
-    }>;
-    additionalErrors?: Array<{
-        nodeName: string;
-        message: string;
-    }>;
-    suggestions?: ErrorSuggestion[];
-}
-export interface ErrorSuggestion {
-    type: 'fix' | 'investigate' | 'workaround';
-    title: string;
-    description: string;
-    confidence: 'high' | 'medium' | 'low';
-}
 //# sourceMappingURL=n8n-api.d.ts.map

dist/utils/node-type-normalizer.d.ts

@@ -12,6 +12,5 @@ export declare class NodeTypeNormalizer {
     static normalizeWorkflowNodeTypes(workflow: any): any;
     static isFullForm(type: string): boolean;
     static isShortForm(type: string): boolean;
-    static toWorkflowFormat(type: string): string;
 }
 //# sourceMappingURL=node-type-normalizer.d.ts.map

dist/utils/node-type-normalizer.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"node-type-normalizer.d.ts","sourceRoot":"","sources":["../../src/utils/node-type-normalizer.ts"],"names":[],"mappings":"AA2CA,MAAM,WAAW,2BAA2B;IAC1C,QAAQ,EAAE,MAAM,CAAC;IACjB,UAAU,EAAE,MAAM,CAAC;IACnB,aAAa,EAAE,OAAO,CAAC;IACvB,OAAO,EAAE,MAAM,GAAG,WAAW,GAAG,WAAW,GAAG,SAAS,CAAC;CACzD;AAED,qBAAa,kBAAkB;IAyB7B,MAAM,CAAC,mBAAmB,CAAC,IAAI,EAAE,MAAM,GAAG,MAAM;IAuChD,MAAM,CAAC,oBAAoB,CAAC,IAAI,EAAE,MAAM,GAAG,2BAA2B;IAkBtE,OAAO,CAAC,MAAM,CAAC,aAAa;IAuB5B,MAAM,CAAC,cAAc,CAAC,KAAK,EAAE,MAAM,EAAE,GAAG,GAAG,CAAC,MAAM,EAAE,MAAM,CAAC;IA8B3D,MAAM,CAAC,0BAA0B,CAAC,QAAQ,EAAE,GAAG,GAAG,GAAG;IAoBrD,MAAM,CAAC,UAAU,CAAC,IAAI,EAAE,MAAM,GAAG,OAAO;IAkBxC,MAAM,CAAC,WAAW,CAAC,IAAI,EAAE,MAAM,GAAG,OAAO;CAU1C"}

dist/utils/node-type-normalizer.js

@@ -70,18 +70,6 @@ class NodeTypeNormalizer {
         return (type.startsWith('nodes-base.') ||
             type.startsWith('nodes-langchain.'));
     }
-    static toWorkflowFormat(type) {
-        if (!type || typeof type !== 'string') {
-            return type;
-        }
-        if (type.startsWith('nodes-base.')) {
-            return type.replace(/^nodes-base\./, 'n8n-nodes-base.');
-        }
-        if (type.startsWith('nodes-langchain.')) {
-            return type.replace(/^nodes-langchain\./, '@n8n/n8n-nodes-langchain.');
-        }
-        return type;
-    }
 }
 exports.NodeTypeNormalizer = NodeTypeNormalizer;
 //# sourceMappingURL=node-type-normalizer.js.map

dist/utils/node-type-normalizer.js.map

@@ -1 +1 @@
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dist/utils/node-type-utils.d.ts.map

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dist/utils/node-type-utils.js

@@ -95,6 +95,11 @@ function isTriggerNode(nodeType) {
     return specificTriggers.includes(normalized);
 }
 function isActivatableTrigger(nodeType) {
+    const normalized = normalizeNodeType(nodeType);
+    const lowerType = normalized.toLowerCase();
+    if (lowerType.includes('executeworkflow')) {
+        return false;
+    }
     return isTriggerNode(nodeType);
 }
 function getTriggerTypeDescription(nodeType) {

dist/utils/node-type-utils.js.map

@@ -1 +1 @@
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+{"version":3,"file":"node-type-utils.js","sourceRoot":"","sources":["../../src/utils/node-type-utils.ts"],"names":[],"mappings":";;AAcA,8CAMC;AASD,kDAQC;AASD,0CASC;AASD,wCASC;AAKD,gCAGC;AAKD,0CAGC;AAMD,sDAaC;AAUD,sDAwBC;AAkBD,sCAsBC;AAoBD,oDAWC;AAQD,8DAiCC;AAhPD,SAAgB,iBAAiB,CAAC,IAAY;IAC5C,IAAI,CAAC,IAAI;QAAE,OAAO,IAAI,CAAC;IAEvB,OAAO,IAAI;SACR,OAAO,CAAC,mBAAmB,EAAE,aAAa,CAAC;SAC3C,OAAO,CAAC,8BAA8B,EAAE,kBAAkB,CAAC,CAAC;AACjE,CAAC;AASD,SAAgB,mBAAmB,CAAC,IAAY,EAAE,WAAiC;IACjF,IAAI,CAAC,IAAI;QAAE,OAAO,IAAI,CAAC;IAEvB,IAAI,WAAW,KAAK,MAAM,EAAE,CAAC;QAC3B,OAAO,IAAI,CAAC,OAAO,CAAC,eAAe,EAAE,iBAAiB,CAAC,CAAC;IAC1D,CAAC;IAED,OAAO,IAAI,CAAC,OAAO,CAAC,oBAAoB,EAAE,2BAA2B,CAAC,CAAC;AACzE,CAAC;AASD,SAAgB,eAAe,CAAC,IAAY;IAC1C,IAAI,CAAC,IAAI;QAAE,OAAO,EAAE,CAAC;IAGrB,MAAM,UAAU,GAAG,iBAAiB,CAAC,IAAI,CAAC,CAAC;IAG3C,MAAM,KAAK,GAAG,UAAU,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;IACpC,OAAO,KAAK,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,IAAI,EAAE,CAAC;AACvC,CAAC;AASD,SAAgB,cAAc,CAAC,IAAY;IACzC,IAAI,CAAC,IAAI,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC;QAAE,OAAO,IAAI,CAAC;IAG9C,MAAM,UAAU,GAAG,iBAAiB,CAAC,IAAI,CAAC,CAAC;IAG3C,MAAM,KAAK,GAAG,UAAU,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;IACpC,OAAO,KAAK,CAAC,CAAC,CAAC,IAAI,IAAI,CAAC;AAC1B,CAAC;AAKD,SAAgB,UAAU,CAAC,IAAY;IACrC,MAAM,UAAU,GAAG,iBAAiB,CAAC,IAAI,CAAC,CAAC;IAC3C,OAAO,UAAU,CAAC,UAAU,CAAC,aAAa,CAAC,CAAC;AAC9C,CAAC;AAKD,SAAgB,eAAe,CAAC,IAAY;IAC1C,MAAM,UAAU,GAAG,iBAAiB,CAAC,IAAI,CAAC,CAAC;IAC3C,OAAO,UAAU,CAAC,UAAU,CAAC,kBAAkB,CAAC,CAAC;AACnD,CAAC;AAMD,SAAgB,qBAAqB,CAAC,IAAY;IAChD,IAAI,CAAC,IAAI,IAAI,OAAO,IAAI,KAAK,QAAQ;QAAE,OAAO,KAAK,CAAC;IAGpD,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC;QAAE,OAAO,KAAK,CAAC;IAEtC,MAAM,KAAK,GAAG,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;IAG9B,IAAI,KAAK,CAAC,MAAM,KAAK,CAAC;QAAE,OAAO,KAAK,CAAC;IAGrC,OAAO,KAAK,CAAC,CAAC,CAAC,CAAC,MAAM,GAAG,CAAC,IAAI,KAAK,CAAC,CAAC,CAAC,CAAC,MAAM,GAAG,CAAC,CAAC;AACpD,CAAC;AAUD,SAAgB,qBAAqB,CAAC,IAAY;IAChD,MAAM,UAAU,GAAa,EAAE,CAAC;IAGhC,IAAI,IAAI,CAAC,QAAQ,CAAC,GAAG,CAAC,EAAE,CAAC;QACvB,UAAU,CAAC,IAAI,CAAC,iBAAiB,CAAC,IAAI,CAAC,CAAC,CAAC;QAGzC,MAAM,UAAU,GAAG,iBAAiB,CAAC,IAAI,CAAC,CAAC;QAC3C,IAAI,UAAU,CAAC,UAAU,CAAC,aAAa,CAAC,EAAE,CAAC;YACzC,UAAU,CAAC,IAAI,CAAC,mBAAmB,CAAC,UAAU,EAAE,MAAM,CAAC,CAAC,CAAC;QAC3D,CAAC;aAAM,IAAI,UAAU,CAAC,UAAU,CAAC,kBAAkB,CAAC,EAAE,CAAC;YACrD,UAAU,CAAC,IAAI,CAAC,mBAAmB,CAAC,UAAU,EAAE,WAAW,CAAC,CAAC,CAAC;QAChE,CAAC;IACH,CAAC;SAAM,CAAC;QAEN,UAAU,CAAC,IAAI,CAAC,cAAc,IAAI,EAAE,CAAC,CAAC;QACtC,UAAU,CAAC,IAAI,CAAC,kBAAkB,IAAI,EAAE,CAAC,CAAC;QAC1C,UAAU,CAAC,IAAI,CAAC,mBAAmB,IAAI,EAAE,CAAC,CAAC;QAC3C,UAAU,CAAC,IAAI,CAAC,4BAA4B,IAAI,EAAE,CAAC,CAAC;IACtD,CAAC;IAGD,OAAO,CAAC,GAAG,IAAI,GAAG,CAAC,UAAU,CAAC,CAAC,CAAC;AAClC,CAAC;AAkBD,SAAgB,aAAa,CAAC,QAAgB;IAC5C,MAAM,UAAU,GAAG,iBAAiB,CAAC,QAAQ,CAAC,CAAC;IAC/C,MAAM,SAAS,GAAG,UAAU,CAAC,WAAW,EAAE,CAAC;IAG3C,IAAI,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,EAAE,CAAC;QAClC,OAAO,IAAI,CAAC;IACd,CAAC;IAGD,IAAI,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,IAAI,CAAC,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,EAAE,CAAC;QACpE,OAAO,IAAI,CAAC;IACd,CAAC;IAGD,MAAM,gBAAgB,GAAG;QACvB,kBAAkB;QAClB,0BAA0B;QAC1B,wBAAwB;KACzB,CAAC;IAEF,OAAO,gBAAgB,CAAC,QAAQ,CAAC,UAAU,CAAC,CAAC;AAC/C,CAAC;AAoBD,SAAgB,oBAAoB,CAAC,QAAgB;IACnD,MAAM,UAAU,GAAG,iBAAiB,CAAC,QAAQ,CAAC,CAAC;IAC/C,MAAM,SAAS,GAAG,UAAU,CAAC,WAAW,EAAE,CAAC;IAG3C,IAAI,SAAS,CAAC,QAAQ,CAAC,iBAAiB,CAAC,EAAE,CAAC;QAC1C,OAAO,KAAK,CAAC;IACf,CAAC;IAGD,OAAO,aAAa,CAAC,QAAQ,CAAC,CAAC;AACjC,CAAC;AAQD,SAAgB,yBAAyB,CAAC,QAAgB;IACxD,MAAM,UAAU,GAAG,iBAAiB,CAAC,QAAQ,CAAC,CAAC;IAC/C,MAAM,SAAS,GAAG,UAAU,CAAC,WAAW,EAAE,CAAC;IAE3C,IAAI,SAAS,CAAC,QAAQ,CAAC,iBAAiB,CAAC,EAAE,CAAC;QAC1C,OAAO,uDAAuD,CAAC;IACjE,CAAC;IAED,IAAI,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,EAAE,CAAC;QAClC,OAAO,iCAAiC,CAAC;IAC3C,CAAC;IAED,IAAI,SAAS,CAAC,QAAQ,CAAC,UAAU,CAAC,IAAI,SAAS,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,CAAC;QACjE,OAAO,+BAA+B,CAAC;IACzC,CAAC;IAED,IAAI,SAAS,CAAC,QAAQ,CAAC,QAAQ,CAAC,IAAI,UAAU,KAAK,kBAAkB,EAAE,CAAC;QACtE,OAAO,mCAAmC,CAAC;IAC7C,CAAC;IAED,IAAI,SAAS,CAAC,QAAQ,CAAC,OAAO,CAAC,IAAI,SAAS,CAAC,QAAQ,CAAC,MAAM,CAAC,IAAI,SAAS,CAAC,QAAQ,CAAC,OAAO,CAAC,EAAE,CAAC;QAC7F,OAAO,yBAAyB,CAAC;IACnC,CAAC;IAED,IAAI,SAAS,CAAC,QAAQ,CAAC,MAAM,CAAC,EAAE,CAAC;QAC/B,OAAO,iCAAiC,CAAC;IAC3C,CAAC;IAED,IAAI,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,EAAE,CAAC;QAClC,OAAO,uBAAuB,CAAC;IACjC,CAAC;IAED,OAAO,sBAAsB,CAAC;AAChC,CAAC"}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp",
-  "version": "2.31.5",
+  "version": "2.28.7",
   "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -141,16 +141,16 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "1.20.1",
-    "@n8n/n8n-nodes-langchain": "^2.1.3",
+    "@n8n/n8n-nodes-langchain": "^1.121.1",
     "@supabase/supabase-js": "^2.57.4",
     "dotenv": "^16.5.0",
     "express": "^5.1.0",
     "express-rate-limit": "^7.1.5",
     "form-data": "^4.0.5",
     "lru-cache": "^11.2.1",
-    "n8n": "^2.1.4",
+    "n8n": "^1.122.4",
-    "n8n-core": "^2.1.3",
+    "n8n-core": "^1.121.1",
-    "n8n-workflow": "^2.1.1",
+    "n8n-workflow": "^1.119.1",
     "openai": "^4.77.0",
     "sql.js": "^1.13.0",
     "tslib": "^2.6.2",

package.runtime.json

@@ -1,6 +1,6 @@
 {
   "name": "n8n-mcp-runtime",
-  "version": "2.29.5",
+  "version": "2.28.7",
   "description": "n8n MCP Server Runtime Dependencies Only",
   "private": true,
   "dependencies": {

src/database/node-repository.ts

@@ -23,13 +23,12 @@ export class NodeRepository {
       INSERT OR REPLACE INTO nodes (
         node_type, package_name, display_name, description,
         category, development_style, is_ai_tool, is_trigger,
-        is_webhook, is_versioned, is_tool_variant, tool_variant_of,
+        is_webhook, is_versioned, version, documentation,
-        has_tool_variant, version, documentation,
         properties_schema, operations, credentials_required,
         outputs, output_names
-      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `);
-
+    
     stmt.run(
       node.nodeType,
       node.packageName,
@@ -41,9 +40,6 @@ export class NodeRepository {
       node.isTrigger ? 1 : 0,
       node.isWebhook ? 1 : 0,
       node.isVersioned ? 1 : 0,
-      node.isToolVariant ? 1 : 0,
-      node.toolVariantOf || null,
-      node.hasToolVariant ? 1 : 0,
       node.version,
       node.documentation || null,
       JSON.stringify(node.properties, null, 2),
@@ -198,58 +194,6 @@ export class NodeRepository {
     return this.getAITools();
   }
 
-  /**
-   * Get the Tool variant for a base node
-   */
-  getToolVariant(baseNodeType: string): any | null {
-    // Validate node type format (must be package.nodeName pattern)
-    if (!baseNodeType || typeof baseNodeType !== 'string' || !baseNodeType.includes('.')) {
-      return null;
-    }
-    const toolNodeType = `${baseNodeType}Tool`;
-    return this.getNode(toolNodeType);
-  }
-
-  /**
-   * Get the base node for a Tool variant
-   */
-  getBaseNodeForToolVariant(toolNodeType: string): any | null {
-    const row = this.db.prepare(`
-      SELECT tool_variant_of FROM nodes WHERE node_type = ?
-    `).get(toolNodeType) as any;
-
-    if (!row?.tool_variant_of) return null;
-    return this.getNode(row.tool_variant_of);
-  }
-
-  /**
-   * Get all Tool variants
-   */
-  getToolVariants(): any[] {
-    const rows = this.db.prepare(`
-      SELECT node_type, display_name, description, package_name, tool_variant_of
-      FROM nodes
-      WHERE is_tool_variant = 1
-      ORDER BY display_name
-    `).all() as any[];
-
-    return rows.map(row => ({
-      nodeType: row.node_type,
-      displayName: row.display_name,
-      description: row.description,
-      package: row.package_name,
-      toolVariantOf: row.tool_variant_of
-    }));
-  }
-
-  /**
-   * Get count of Tool variants
-   */
-  getToolVariantCount(): number {
-    const result = this.db.prepare('SELECT COUNT(*) as count FROM nodes WHERE is_tool_variant = 1').get() as any;
-    return result.count;
-  }
-
   getNodesByPackage(packageName: string): any[] {
     const rows = this.db.prepare(`
       SELECT * FROM nodes WHERE package_name = ?
@@ -306,9 +250,6 @@ export class NodeRepository {
       isTrigger: Number(row.is_trigger) === 1,
       isWebhook: Number(row.is_webhook) === 1,
       isVersioned: Number(row.is_versioned) === 1,
-      isToolVariant: Number(row.is_tool_variant) === 1,
-      toolVariantOf: row.tool_variant_of || null,
-      hasToolVariant: Number(row.has_tool_variant) === 1,
       version: row.version,
       properties: this.safeJsonParse(row.properties_schema, []),
       operations: this.safeJsonParse(row.operations, []),

src/database/schema.sql

@@ -10,9 +10,6 @@ CREATE TABLE IF NOT EXISTS nodes (
   is_trigger INTEGER DEFAULT 0,
   is_webhook INTEGER DEFAULT 0,
   is_versioned INTEGER DEFAULT 0,
-  is_tool_variant INTEGER DEFAULT 0, -- 1 if this is a *Tool variant for AI Agents
-  tool_variant_of TEXT,              -- For Tool variants: base node type (e.g., nodes-base.supabase)
-  has_tool_variant INTEGER DEFAULT 0, -- For base nodes: 1 if Tool variant exists
   version TEXT,
   documentation TEXT,
   properties_schema TEXT,
@@ -27,8 +24,6 @@ CREATE TABLE IF NOT EXISTS nodes (
 CREATE INDEX IF NOT EXISTS idx_package ON nodes(package_name);
 CREATE INDEX IF NOT EXISTS idx_ai_tool ON nodes(is_ai_tool);
 CREATE INDEX IF NOT EXISTS idx_category ON nodes(category);
-CREATE INDEX IF NOT EXISTS idx_tool_variant ON nodes(is_tool_variant);
-CREATE INDEX IF NOT EXISTS idx_tool_variant_of ON nodes(tool_variant_of);
 
 -- FTS5 full-text search index for nodes
 CREATE VIRTUAL TABLE IF NOT EXISTS nodes_fts USING fts5(

src/mcp/handlers-n8n-manager.ts

@@ -518,13 +518,8 @@ export async function handleCreateWorkflow(args: unknown, context?: InstanceCont
 
     return {
       success: true,
-      data: {
+      data: workflow,
-        id: workflow.id,
+      message: `Workflow "${workflow.name}" created successfully with ID: ${workflow.id}`
-        name: workflow.name,
-        active: workflow.active,
-        nodeCount: workflow.nodes?.length || 0
-      },
-      message: `Workflow "${workflow.name}" created successfully with ID: ${workflow.id}. Use n8n_get_workflow with mode 'structure' to verify current state.`
     };
   } catch (error) {
     if (error instanceof z.ZodError) {
@@ -818,13 +813,8 @@ export async function handleUpdateWorkflow(
 
     return {
       success: true,
-      data: {
+      data: workflow,
-        id: workflow.id,
+      message: `Workflow "${workflow.name}" updated successfully`
-        name: workflow.name,
-        active: workflow.active,
-        nodeCount: workflow.nodes?.length || 0
-      },
-      message: `Workflow "${workflow.name}" updated successfully. Use n8n_get_workflow with mode 'structure' to verify current state.`
     };
   } catch (error) {
     // Track failed mutation
@@ -890,12 +880,8 @@ export async function handleDeleteWorkflow(args: unknown, context?: InstanceCont
 
     return {
       success: true,
-      data: {
+      data: deleted,
-        id: deleted?.id || id,
+      message: `Workflow ${id} deleted successfully`
-        name: deleted?.name,
-        deleted: true
-      },
-      message: `Workflow "${deleted?.name || id}" deleted successfully.`
     };
   } catch (error) {
     if (error instanceof z.ZodError) {
@@ -998,7 +984,7 @@ export async function handleValidateWorkflow(
     const input = validateWorkflowSchema.parse(args);
     
     // First, fetch the workflow from n8n
-    const workflowResponse = await handleGetWorkflow({ id: input.id }, context);
+    const workflowResponse = await handleGetWorkflow({ id: input.id });
     
     if (!workflowResponse.success) {
       return workflowResponse; // Return the error from fetching
@@ -1421,33 +1407,17 @@ export async function handleGetExecution(args: unknown, context?: InstanceContex
     // Parse and validate input with new parameters
     const schema = z.object({
       id: z.string(),
-      // Filtering parameters
+      // New filtering parameters
-      mode: z.enum(['preview', 'summary', 'filtered', 'full', 'error']).optional(),
+      mode: z.enum(['preview', 'summary', 'filtered', 'full']).optional(),
       nodeNames: z.array(z.string()).optional(),
       itemsLimit: z.number().optional(),
       includeInputData: z.boolean().optional(),
       // Legacy parameter (backward compatibility)
-      includeData: z.boolean().optional(),
+      includeData: z.boolean().optional()
-      // Error mode specific parameters
-      errorItemsLimit: z.number().min(0).max(100).optional(),
-      includeStackTrace: z.boolean().optional(),
-      includeExecutionPath: z.boolean().optional(),
-      fetchWorkflow: z.boolean().optional()
     });
 
     const params = schema.parse(args);
-    const {
+    const { id, mode, nodeNames, itemsLimit, includeInputData, includeData } = params;
-      id,
-      mode,
-      nodeNames,
-      itemsLimit,
-      includeInputData,
-      includeData,
-      errorItemsLimit,
-      includeStackTrace,
-      includeExecutionPath,
-      fetchWorkflow
-    } = params;
 
     /**
      * Map legacy includeData parameter to mode for backward compatibility
@@ -1486,33 +1456,15 @@ export async function handleGetExecution(args: unknown, context?: InstanceContex
       };
     }
 
-    // For error mode, optionally fetch workflow for accurate upstream detection
-    let workflow: Workflow | undefined;
-    if (effectiveMode === 'error' && fetchWorkflow !== false && execution.workflowId) {
-      try {
-        workflow = await client.getWorkflow(execution.workflowId);
-      } catch (e) {
-        // Workflow fetch failed - continue without it (use heuristics)
-        logger.debug('Could not fetch workflow for error analysis', {
-          workflowId: execution.workflowId,
-          error: e instanceof Error ? e.message : 'Unknown error'
-        });
-      }
-    }
-
     // Apply filtering using ExecutionProcessor
     const filterOptions: ExecutionFilterOptions = {
       mode: effectiveMode,
       nodeNames,
       itemsLimit,
-      includeInputData,
+      includeInputData
-      // Error mode specific options
-      errorItemsLimit,
-      includeStackTrace,
-      includeExecutionPath
     };
 
-    const processedExecution = processExecution(execution, filterOptions, workflow);
+    const processedExecution = processExecution(execution, filterOptions);
 
     return {
       success: true,

src/mcp/handlers-workflow-diff.ts

@@ -363,15 +363,13 @@ export async function handleUpdatePartialWorkflow(
 
       return {
         success: true,
-        data: {
+        data: finalWorkflow,
-          id: finalWorkflow.id,
+        message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${activationMessage}`,
-          name: finalWorkflow.name,
-          active: finalWorkflow.active,
-          nodeCount: finalWorkflow.nodes?.length || 0,
-          operationsApplied: diffResult.operationsApplied
-        },
-        message: `Workflow "${finalWorkflow.name}" updated successfully. Applied ${diffResult.operationsApplied} operations.${activationMessage} Use n8n_get_workflow with mode 'structure' to verify current state.`,
         details: {
+          operationsApplied: diffResult.operationsApplied,
+          workflowId: finalWorkflow.id,
+          workflowName: finalWorkflow.name,
+          active: finalWorkflow.active,
           applied: diffResult.applied,
           failed: diffResult.failed,
           errors: diffResult.errors,

src/mcp/server.ts

@@ -52,9 +52,6 @@ interface NodeRow {
   is_trigger: number;
   is_webhook: number;
   is_versioned: number;
-  is_tool_variant: number;
-  tool_variant_of?: string;
-  has_tool_variant: number;
   version?: string;
   documentation?: string;
   properties_schema?: string;
@@ -68,14 +65,6 @@ interface VersionSummary {
   hasVersionHistory: boolean;
 }
 
-interface ToolVariantGuidance {
-  isToolVariant: boolean;
-  toolVariantOf?: string;
-  hasToolVariant: boolean;
-  toolVariantNodeType?: string;
-  guidance?: string;
-}
-
 interface NodeMinimalInfo {
   nodeType: string;
   workflowNodeType: string;
@@ -86,7 +75,6 @@ interface NodeMinimalInfo {
   isAITool: boolean;
   isTrigger: boolean;
   isWebhook: boolean;
-  toolVariantInfo?: ToolVariantGuidance;
 }
 
 interface NodeStandardInfo {
@@ -100,7 +88,6 @@ interface NodeStandardInfo {
   credentials?: any;
   examples?: any[];
   versionInfo: VersionSummary;
-  toolVariantInfo?: ToolVariantGuidance;
 }
 
 interface NodeFullInfo {
@@ -113,7 +100,6 @@ interface NodeFullInfo {
   credentials?: any;
   documentation?: string;
   versionInfo: VersionSummary;
-  toolVariantInfo?: ToolVariantGuidance;
 }
 
 interface VersionHistoryInfo {
@@ -1390,20 +1376,12 @@ export class N8NDocumentationMCPServer {
       });
     }
 
-    const result: any = {
+    return {
       ...node,
       workflowNodeType: getWorkflowNodeType(node.package ?? 'n8n-nodes-base', node.nodeType),
       aiToolCapabilities,
       outputs
     };
-
-    // Add tool variant guidance if applicable
-    const toolVariantInfo = this.buildToolVariantGuidance(node);
-    if (toolVariantInfo) {
-      result.toolVariantInfo = toolVariantInfo;
-    }
-
-    return result;
   }
 
   /**
@@ -2267,7 +2245,7 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
     // Get the latest version - this is important for AI to use correct typeVersion
     const latestVersion = node.version ?? '1';
 
-    const result: any = {
+    const result = {
       nodeType: node.nodeType,
       workflowNodeType: getWorkflowNodeType(node.package ?? 'n8n-nodes-base', node.nodeType),
       displayName: node.displayName,
@@ -2297,12 +2275,6 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
       }
     };
 
-    // Add tool variant guidance if applicable
-    const toolVariantInfo = this.buildToolVariantGuidance(node);
-    if (toolVariantInfo) {
-      result.toolVariantInfo = toolVariantInfo;
-    }
-
     // Add examples from templates if requested
     if (includeExamples) {
       try {
@@ -2454,7 +2426,7 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
           throw new Error(`Node ${nodeType} not found`);
         }
 
-        const result: NodeMinimalInfo = {
+        return {
           nodeType: node.nodeType,
           workflowNodeType: getWorkflowNodeType(node.package ?? 'n8n-nodes-base', node.nodeType),
           displayName: node.displayName,
@@ -2465,14 +2437,6 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
           isTrigger: node.isTrigger,
           isWebhook: node.isWebhook
         };
-
-        // Add tool variant guidance if applicable
-        const toolVariantInfo = this.buildToolVariantGuidance(node);
-        if (toolVariantInfo) {
-          result.toolVariantInfo = toolVariantInfo;
-        }
-
-        return result;
       }
 
       case 'standard': {
@@ -2905,18 +2869,12 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
     
     // Get properties
     const properties = node.properties || [];
-
+    
-    // Add @version to config for displayOptions evaluation (supports _cnd operators)
-    const configWithVersion = {
-      '@version': node.version || 1,
-      ...config
-    };
-
     // Use enhanced validator with operation mode by default
     const validationResult = EnhancedConfigValidator.validateWithMode(
-      node.nodeType,
+      node.nodeType, 
-      configWithVersion,
+      config, 
-      properties,
+      properties, 
       mode,
       profile
     );
@@ -3160,45 +3118,7 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
       'Extend AI agent capabilities'
     ];
   }
-
+  
-  /**
-   * Build tool variant guidance for node responses.
-   * Provides cross-reference information between base nodes and their Tool variants.
-   */
-  private buildToolVariantGuidance(node: any): ToolVariantGuidance | undefined {
-    const isToolVariant = !!node.isToolVariant;
-    const hasToolVariant = !!node.hasToolVariant;
-    const toolVariantOf = node.toolVariantOf;
-
-    // If this is neither a Tool variant nor has one, no guidance needed
-    if (!isToolVariant && !hasToolVariant) {
-      return undefined;
-    }
-
-    if (isToolVariant) {
-      // This IS a Tool variant (e.g., nodes-base.supabaseTool)
-      return {
-        isToolVariant: true,
-        toolVariantOf,
-        hasToolVariant: false,
-        guidance: `This is the Tool variant for AI Agent integration. Use this node type when connecting to AI Agents. The base node is: ${toolVariantOf}`
-      };
-    }
-
-    if (hasToolVariant && node.nodeType) {
-      // This base node HAS a Tool variant (e.g., nodes-base.supabase)
-      const toolVariantNodeType = `${node.nodeType}Tool`;
-      return {
-        isToolVariant: false,
-        hasToolVariant: true,
-        toolVariantNodeType,
-        guidance: `To use this node with AI Agents, use the Tool variant: ${toolVariantNodeType}. The Tool variant has an additional 'toolDescription' property and outputs 'ai_tool' instead of 'main'.`
-      };
-    }
-
-    return undefined;
-  }
-
   private getAIToolExamples(nodeType: string): any {
     const exampleMap: Record<string, any> = {
       'nodes-base.slack': {
@@ -3282,27 +3202,57 @@ Full documentation is being prepared. For now, use get_node_essentials for confi
       throw new Error(`Node ${nodeType} not found`);
     }
     
-    // Get properties
+    // Get properties  
     const properties = node.properties || [];
-
+    
-    // Add @version to config for displayOptions evaluation (supports _cnd operators)
+    // Extract operation context (safely handle undefined config properties)
-    const configWithVersion = {
+    const operationContext = {
-      '@version': node.version || 1,
+      resource: config?.resource,
-      ...(config || {})
+      operation: config?.operation,
+      action: config?.action,
+      mode: config?.mode
     };
-
+    
     // Find missing required fields
     const missingFields: string[] = [];
-
+    
     for (const prop of properties) {
       // Skip if not required
       if (!prop.required) continue;
-
+      
-      // Skip if not visible based on current config (uses ConfigValidator for _cnd support)
+      // Skip if not visible based on current config
-      if (prop.displayOptions && !ConfigValidator.isPropertyVisible(prop, configWithVersion)) {
+      if (prop.displayOptions) {
-        continue;
+        let isVisible = true;
+        
+        // Check show conditions
+        if (prop.displayOptions.show) {
+          for (const [key, values] of Object.entries(prop.displayOptions.show)) {
+            const configValue = config?.[key];
+            const expectedValues = Array.isArray(values) ? values : [values];
+            
+            if (!expectedValues.includes(configValue)) {
+              isVisible = false;
+              break;
+            }
+          }
+        }
+        
+        // Check hide conditions
+        if (isVisible && prop.displayOptions.hide) {
+          for (const [key, values] of Object.entries(prop.displayOptions.hide)) {
+            const configValue = config?.[key];
+            const expectedValues = Array.isArray(values) ? values : [values];
+            
+            if (expectedValues.includes(configValue)) {
+              isVisible = false;
+              break;
+            }
+          }
+        }
+        
+        if (!isVisible) continue;
       }
-
+      
       // Check if field is missing (safely handle null/undefined config)
       if (!config || !(prop.name in config)) {
         missingFields.push(prop.displayName || prop.name);

src/mcp/tool-docs/templates/get-template.ts

@@ -42,7 +42,7 @@ export const getTemplateDoc: ToolDocumentation = {
   - url: Link to template on n8n.io
   - workflow: Complete workflow JSON with structure:
     - nodes: Array of node objects (id, name, type, typeVersion, position, parameters)
-    - connections: Object mapping source node names to targets
+    - connections: Object mapping source nodes to targets
     - settings: Workflow configuration (timezone, error handling, etc.)
 - usage: Instructions for using the workflow`,
     examples: [

src/mcp/tool-docs/workflow_management/n8n-create-workflow.ts

@@ -20,10 +20,10 @@ export const n8nCreateWorkflowDoc: ToolDocumentation = {
     parameters: {
       name: { type: 'string', required: true, description: 'Workflow name' },
       nodes: { type: 'array', required: true, description: 'Array of nodes with id, name, type, typeVersion, position, parameters' },
-      connections: { type: 'object', required: true, description: 'Node connections. Keys are source node names (not IDs)' },
+      connections: { type: 'object', required: true, description: 'Node connections. Keys are source node IDs' },
       settings: { type: 'object', description: 'Optional workflow settings (timezone, error handling, etc.)' }
     },
-    returns: 'Minimal summary (id, name, active, nodeCount) for token efficiency. Use n8n_get_workflow with mode "structure" to verify current state if needed.',
+    returns: 'Created workflow object with id, name, nodes, connections, active status',
     examples: [
       `// Basic webhook to Slack workflow
 n8n_create_workflow({
@@ -55,8 +55,8 @@ n8n_create_workflow({
     }
   ],
   connections: {
-    "Webhook": {
+    "webhook_1": {
-      "main": [[{node: "Slack", type: "main", index: 0}]]
+      "main": [[{node: "slack_1", type: "main", index: 0}]]
     }
   }
 })`,

src/mcp/tool-docs/workflow_management/n8n-delete-workflow.ts

@@ -19,7 +19,7 @@ export const n8nDeleteWorkflowDoc: ToolDocumentation = {
     parameters: {
       id: { type: 'string', required: true, description: 'Workflow ID to delete permanently' }
     },
-    returns: 'Minimal confirmation (id, name, deleted: true) for token efficiency.',
+    returns: 'Success confirmation or error if workflow not found/cannot be deleted',
     examples: [
       'n8n_delete_workflow({id: "abc123"}) - Delete specific workflow',
       'if (confirm) { n8n_delete_workflow({id: wf.id}); } // With confirmation'

src/mcp/tool-docs/workflow_management/n8n-executions.ts

@@ -5,14 +5,13 @@ export const n8nExecutionsDoc: ToolDocumentation = {
   category: 'workflow_management',
   essentials: {
     description: 'Manage workflow executions: get details, list, or delete. Unified tool for all execution operations.',
-    keyParameters: ['action', 'id', 'workflowId', 'status', 'mode'],
+    keyParameters: ['action', 'id', 'workflowId', 'status'],
-    example: 'n8n_executions({action: "get", id: "exec_456", mode: "error"})',
+    example: 'n8n_executions({action: "list", workflowId: "abc123", status: "error"})',
     performance: 'Fast (50-200ms)',
     tips: [
       'action="get": Get execution details by ID',
       'action="list": List executions with filters',
       'action="delete": Delete execution record',
-      'Use mode="error" for efficient failure debugging (80-90% token savings)',
       'Use mode parameter for action=get to control detail level'
     ]
   },
@@ -26,26 +25,14 @@ export const n8nExecutionsDoc: ToolDocumentation = {
 - preview: Structure only, no data
 - summary: 2 items per node (default)
 - filtered: Custom items limit, optionally filter by node names
-- full: All execution data (can be very large)
+- full: All execution data (can be very large)`,
-- error: Optimized for debugging failures - extracts error info, upstream context, and AI suggestions
-
-**Error Mode Features:**
-- Extracts error message, type, and node configuration
-- Samples input data from upstream node (configurable limit)
-- Shows execution path leading to error
-- Provides AI-friendly fix suggestions based on error patterns
-- Token-efficient (80-90% smaller than full mode)`,
     parameters: {
       action: { type: 'string', required: true, description: 'Operation: "get", "list", or "delete"' },
       id: { type: 'string', required: false, description: 'Execution ID (required for action=get or action=delete)' },
-      mode: { type: 'string', required: false, description: 'For action=get: "preview", "summary" (default), "filtered", "full", "error"' },
+      mode: { type: 'string', required: false, description: 'For action=get: "preview", "summary" (default), "filtered", "full"' },
       nodeNames: { type: 'array', required: false, description: 'For action=get with mode=filtered: Filter to specific nodes by name' },
       itemsLimit: { type: 'number', required: false, description: 'For action=get with mode=filtered: Items per node (0=structure, 2=default, -1=unlimited)' },
       includeInputData: { type: 'boolean', required: false, description: 'For action=get: Include input data in addition to output (default: false)' },
-      errorItemsLimit: { type: 'number', required: false, description: 'For action=get with mode=error: Sample items from upstream (default: 2, max: 100)' },
-      includeStackTrace: { type: 'boolean', required: false, description: 'For action=get with mode=error: Include full stack trace (default: false, shows truncated)' },
-      includeExecutionPath: { type: 'boolean', required: false, description: 'For action=get with mode=error: Include execution path (default: true)' },
-      fetchWorkflow: { type: 'boolean', required: false, description: 'For action=get with mode=error: Fetch workflow for accurate upstream detection (default: true)' },
       workflowId: { type: 'string', required: false, description: 'For action=list: Filter by workflow ID' },
       status: { type: 'string', required: false, description: 'For action=list: Filter by status ("success", "error", "waiting")' },
       limit: { type: 'number', required: false, description: 'For action=list: Number of results (1-100, default: 100)' },
@@ -54,15 +41,10 @@ export const n8nExecutionsDoc: ToolDocumentation = {
       includeData: { type: 'boolean', required: false, description: 'For action=list: Include execution data (default: false)' }
     },
     returns: `Depends on action:
-- get (error mode): { errorInfo: { primaryError, upstreamContext, executionPath, suggestions }, summary }
+- get: Execution object with data based on mode
-- get (other modes): Execution object with data based on mode
 - list: { data: [...executions], nextCursor?: string }
 - delete: { success: boolean, message: string }`,
     examples: [
-      '// Debug a failed execution (recommended for errors)\nn8n_executions({action: "get", id: "exec_456", mode: "error"})',
-      '// Debug with more sample data from upstream\nn8n_executions({action: "get", id: "exec_456", mode: "error", errorItemsLimit: 5})',
-      '// Debug with full stack trace\nn8n_executions({action: "get", id: "exec_456", mode: "error", includeStackTrace: true})',
-      '// Debug without workflow fetch (faster but less accurate)\nn8n_executions({action: "get", id: "exec_456", mode: "error", fetchWorkflow: false})',
       '// List recent executions for a workflow\nn8n_executions({action: "list", workflowId: "abc123", limit: 10})',
       '// List failed executions\nn8n_executions({action: "list", status: "error"})',
       '// Get execution summary\nn8n_executions({action: "get", id: "exec_456"})',
@@ -71,10 +53,7 @@ export const n8nExecutionsDoc: ToolDocumentation = {
       '// Delete an execution\nn8n_executions({action: "delete", id: "exec_456"})'
     ],
     useCases: [
-      'Debug workflow failures efficiently (mode=error) - 80-90% token savings',
+      'Debug workflow failures (get with mode=full)',
-      'Get AI suggestions for fixing common errors',
-      'Analyze input data that caused failure',
-      'Debug workflow failures with full data (mode=full)',
       'Monitor workflow health (list with status filter)',
       'Audit execution history',
       'Clean up old execution records',
@@ -83,22 +62,18 @@ export const n8nExecutionsDoc: ToolDocumentation = {
     performance: `Response times:
 - list: 50-150ms depending on filters
 - get (preview/summary): 30-100ms
-- get (error): 50-200ms (includes optional workflow fetch)
 - get (full): 100-500ms+ depending on data size
 - delete: 30-80ms`,
     bestPractices: [
-      'Use mode="error" for debugging failed executions - 80-90% token savings vs full',
+      'Use mode="summary" (default) for debugging - shows enough data',
-      'Use mode="summary" (default) for quick inspection',
       'Use mode="filtered" with nodeNames for large workflows',
       'Filter by workflowId when listing to reduce results',
       'Use cursor for pagination through large result sets',
-      'Set fetchWorkflow=false if you already know the workflow structure',
       'Delete old executions to save storage'
     ],
     pitfalls: [
       'Requires N8N_API_URL and N8N_API_KEY configured',
       'mode="full" can return very large responses for complex workflows',
-      'mode="error" fetches workflow by default (adds ~50-100ms), disable with fetchWorkflow=false',
       'Execution must exist or returns 404',
       'Delete is permanent - cannot undo'
     ],

src/mcp/tool-docs/workflow_management/n8n-update-full-workflow.ts

@@ -25,7 +25,7 @@ export const n8nUpdateFullWorkflowDoc: ToolDocumentation = {
       settings: { type: 'object', description: 'Workflow settings to update (timezone, error handling, etc.)' },
       intent: { type: 'string', description: 'Intent of the change - helps to return better response. Include in every tool call. Example: "Migrate workflow to new node versions".' }
     },
-    returns: 'Minimal summary (id, name, active, nodeCount) for token efficiency. Use n8n_get_workflow with mode "structure" to verify current state if needed.',
+    returns: 'Updated workflow object with all fields including the changes applied',
     examples: [
       'n8n_update_full_workflow({id: "abc", intent: "Rename workflow for clarity", name: "New Name"}) - Rename with intent',
       'n8n_update_full_workflow({id: "abc", name: "New Name"}) - Rename only',

src/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.ts

@@ -312,7 +312,7 @@ n8n_update_partial_workflow({
       continueOnError: { type: 'boolean', description: 'If true, apply valid operations even if some fail (best-effort mode). Returns applied and failed operation indices. Default: false (atomic)' },
       intent: { type: 'string', description: 'Intent of the change - helps to return better response. Include in every tool call. Example: "Add error handling for API failures".' }
     },
-    returns: 'Minimal summary (id, name, active, nodeCount, operationsApplied) for token efficiency. Use n8n_get_workflow with mode "structure" to verify current state if needed. Returns validation results if validateOnly=true.',
+    returns: 'Updated workflow object or validation results if validateOnly=true',
     examples: [
       '// Include intent parameter for better responses\nn8n_update_partial_workflow({id: "abc", intent: "Add error handling for API failures", operations: [{type: "addConnection", source: "HTTP Request", target: "Error Handler"}]})',
       '// Add a basic node (minimal configuration)\nn8n_update_partial_workflow({id: "abc", operations: [{type: "addNode", node: {name: "Process Data", type: "n8n-nodes-base.set", position: [400, 300], parameters: {}}}]})',

src/mcp/tools-n8n-manager.ts

@@ -46,9 +46,9 @@ export const n8nManagementTools: ToolDefinition[] = [
             }
           }
         },
-        connections: {
+        connections: { 
-          type: 'object',
+          type: 'object', 
-          description: 'Workflow connections object. Keys are source node names (the name field, not id), values define output connections'
+          description: 'Workflow connections object. Keys are source node IDs, values define output connections' 
         },
         settings: {
           type: 'object',
@@ -66,13 +66,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['name', 'nodes', 'connections']
-    },
+    }
-    annotations: {
-      title: 'Create Workflow',
-      readOnlyHint: false,
-      destructiveHint: false,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_get_workflow',
@@ -92,13 +86,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['id']
-    },
+    }
-    annotations: {
-      title: 'Get Workflow',
-      readOnlyHint: true,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_update_full_workflow',
@@ -132,14 +120,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['id']
-    },
+    }
-    annotations: {
-      title: 'Update Full Workflow',
-      readOnlyHint: false,
-      destructiveHint: false,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_update_partial_workflow',
@@ -170,14 +151,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['id', 'operations']
-    },
+    }
-    annotations: {
-      title: 'Update Partial Workflow',
-      readOnlyHint: false,
-      destructiveHint: false,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_delete_workflow',
@@ -191,13 +165,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['id']
-    },
+    }
-    annotations: {
-      title: 'Delete Workflow',
-      readOnlyHint: false,
-      destructiveHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_list_workflows',
@@ -226,18 +194,12 @@ export const n8nManagementTools: ToolDefinition[] = [
           type: 'string', 
           description: 'Filter by project ID (enterprise feature)' 
         },
-        excludePinnedData: {
+        excludePinnedData: { 
-          type: 'boolean',
+          type: 'boolean', 
-          description: 'Exclude pinned data from response (default: true)'
+          description: 'Exclude pinned data from response (default: true)' 
         }
       }
-    },
+    }
-    annotations: {
-      title: 'List Workflows',
-      readOnlyHint: true,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_validate_workflow',
@@ -265,22 +227,16 @@ export const n8nManagementTools: ToolDefinition[] = [
               type: 'boolean', 
               description: 'Validate n8n expressions (default: true)' 
             },
-            profile: {
+            profile: { 
-              type: 'string',
+              type: 'string', 
               enum: ['minimal', 'runtime', 'ai-friendly', 'strict'],
-              description: 'Validation profile to use (default: runtime)'
+              description: 'Validation profile to use (default: runtime)' 
             }
           }
         }
       },
       required: ['id']
-    },
+    }
-    annotations: {
-      title: 'Validate Workflow',
-      readOnlyHint: true,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_autofix_workflow',
@@ -315,14 +271,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['id']
-    },
+    }
-    annotations: {
-      title: 'Autofix Workflow',
-      readOnlyHint: false,
-      destructiveHint: false,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
 
   // Execution Management Tools
@@ -379,13 +328,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['workflowId']
-    },
+    }
-    annotations: {
-      title: 'Test Workflow',
-      readOnlyHint: false,
-      destructiveHint: false,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_executions',
@@ -406,8 +349,8 @@ export const n8nManagementTools: ToolDefinition[] = [
         // For action='get' - detail level
         mode: {
           type: 'string',
-          enum: ['preview', 'summary', 'filtered', 'full', 'error'],
+          enum: ['preview', 'summary', 'filtered', 'full'],
-          description: 'For action=get: preview=structure only, summary=2 items (default), filtered=custom, full=all data, error=optimized error debugging'
+          description: 'For action=get: preview=structure only, summary=2 items (default), filtered=custom, full=all data'
         },
         nodeNames: {
           type: 'array',
@@ -422,23 +365,6 @@ export const n8nManagementTools: ToolDefinition[] = [
           type: 'boolean',
           description: 'For action=get: include input data in addition to output (default: false)'
         },
-        // Error mode specific parameters
-        errorItemsLimit: {
-          type: 'number',
-          description: 'For action=get with mode=error: sample items from upstream node (default: 2, max: 100)'
-        },
-        includeStackTrace: {
-          type: 'boolean',
-          description: 'For action=get with mode=error: include full stack trace (default: false, shows truncated)'
-        },
-        includeExecutionPath: {
-          type: 'boolean',
-          description: 'For action=get with mode=error: include execution path leading to error (default: true)'
-        },
-        fetchWorkflow: {
-          type: 'boolean',
-          description: 'For action=get with mode=error: fetch workflow for accurate upstream detection (default: true)'
-        },
         // For action='list'
         limit: {
           type: 'number',
@@ -467,13 +393,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['action']
-    },
+    }
-    annotations: {
-      title: 'Manage Executions',
-      readOnlyHint: false,
-      destructiveHint: true,
-      openWorldHint: true,
-    },
   },
 
   // System Tools
@@ -494,13 +414,7 @@ export const n8nManagementTools: ToolDefinition[] = [
           description: 'Include extra details in diagnostic mode (default: false)'
         }
       }
-    },
+    }
-    annotations: {
-      title: 'Health Check',
-      readOnlyHint: true,
-      idempotentHint: true,
-      openWorldHint: true,
-    },
   },
   {
     name: 'n8n_workflow_versions',
@@ -554,13 +468,7 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['mode']
-    },
+    }
-    annotations: {
-      title: 'Workflow Versions',
-      readOnlyHint: false,
-      destructiveHint: true,
-      openWorldHint: true,
-    },
   },
 
   // Template Deployment Tool
@@ -595,12 +503,6 @@ export const n8nManagementTools: ToolDefinition[] = [
         }
       },
       required: ['templateId']
-    },
+    }
-    annotations: {
-      title: 'Deploy Template',
-      readOnlyHint: false,
-      destructiveHint: false,
-      openWorldHint: true,
-    },
   }
-];
+];

src/mcp/tools.ts

@@ -25,11 +25,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
         },
       },
     },
-    annotations: {
-      title: 'Tools Documentation',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
   {
     name: 'search_nodes',
@@ -60,11 +55,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
       },
       required: ['query'],
     },
-    annotations: {
-      title: 'Search Nodes',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
   {
     name: 'get_node',
@@ -118,11 +108,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
       },
       required: ['nodeType'],
     },
-    annotations: {
-      title: 'Get Node Info',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
   {
     name: 'validate_node',
@@ -203,11 +188,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
       },
       required: ['nodeType', 'displayName', 'valid']
     },
-    annotations: {
-      title: 'Validate Node Config',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
   {
     name: 'get_template',
@@ -228,11 +208,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
       },
       required: ['templateId'],
     },
-    annotations: {
-      title: 'Get Template',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
   {
     name: 'search_templates',
@@ -328,11 +303,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
         },
       },
     },
-    annotations: {
-      title: 'Search Templates',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
   {
     name: 'validate_workflow',
@@ -418,11 +388,6 @@ export const n8nDocumentationToolsFinal: ToolDefinition[] = [
       },
       required: ['valid', 'summary']
     },
-    annotations: {
-      title: 'Validate Workflow',
-      readOnlyHint: true,
-      idempotentHint: true,
-    },
   },
 ];
 

src/parsers/node-parser.ts

@@ -28,10 +28,6 @@ export interface ParsedNode {
   documentation?: string;
   outputs?: any[];
   outputNames?: string[];
-  // Tool variant fields (for nodes with usableAsTool: true)
-  isToolVariant?: boolean;      // True for *Tool variants (e.g., supabaseTool)
-  toolVariantOf?: string;       // For Tool variants: base node type (e.g., nodes-base.supabase)
-  hasToolVariant?: boolean;     // For base nodes: true if Tool variant exists
 }
 
 export class NodeParser {

src/scripts/rebuild.ts

@@ -8,7 +8,6 @@ import { N8nNodeLoader } from '../loaders/node-loader';
 import { NodeParser, ParsedNode } from '../parsers/node-parser';
 import { DocsMapper } from '../mappers/docs-mapper';
 import { NodeRepository } from '../database/node-repository';
-import { ToolVariantGenerator } from '../services/tool-variant-generator';
 import { TemplateSanitizer } from '../utils/template-sanitizer';
 import * as fs from 'fs';
 import * as path from 'path';
@@ -22,7 +21,6 @@ async function rebuild() {
   const parser = new NodeParser();
   const mapper = new DocsMapper();
   const repository = new NodeRepository(db);
-  const toolVariantGenerator = new ToolVariantGenerator();
   
   // Initialize database
   const schema = fs.readFileSync(path.join(__dirname, '../../src/database/schema.sql'), 'utf8');
@@ -45,8 +43,7 @@ async function rebuild() {
     webhooks: 0,
     withProperties: 0,
     withOperations: 0,
-    withDocs: 0,
+    withDocs: 0
-    toolVariants: 0
   };
   
   // Process each node (documentation fetching must be outside transaction due to async)
@@ -57,38 +54,21 @@ async function rebuild() {
     try {
       // Parse node
       const parsed = parser.parse(NodeClass, packageName);
-
+      
       // Validate parsed data
       if (!parsed.nodeType || !parsed.displayName) {
         throw new Error(`Missing required fields - nodeType: ${parsed.nodeType}, displayName: ${parsed.displayName}, packageName: ${parsed.packageName}`);
       }
-
+      
       // Additional validation for required fields
       if (!parsed.packageName) {
         throw new Error(`Missing packageName for node ${nodeName}`);
       }
-
+      
       // Get documentation
       const docs = await mapper.fetchDocumentation(parsed.nodeType);
       parsed.documentation = docs || undefined;
-
+      
-      // Generate Tool variant for nodes with usableAsTool: true
-      if (parsed.isAITool && !parsed.isTrigger) {
-        const toolVariant = toolVariantGenerator.generateToolVariant(parsed);
-        if (toolVariant) {
-          // Mark base node as having a Tool variant
-          parsed.hasToolVariant = true;
-
-          // Add Tool variant to processed nodes
-          processedNodes.push({
-            parsed: toolVariant,
-            docs: undefined, // Tool variants don't have separate docs
-            nodeName: `${nodeName}Tool`
-          });
-          stats.toolVariants++;
-        }
-      }
-
       processedNodes.push({ parsed, docs: docs || undefined, nodeName });
     } catch (error) {
       stats.failed++;
@@ -147,7 +127,6 @@ async function rebuild() {
   console.log(`   Successful: ${stats.successful}`);
   console.log(`   Failed: ${stats.failed}`);
   console.log(`   AI Tools: ${stats.aiTools}`);
-  console.log(`   Tool Variants: ${stats.toolVariants}`);
   console.log(`   Triggers: ${stats.triggers}`);
   console.log(`   Webhooks: ${stats.webhooks}`);
   console.log(`   With Properties: ${stats.withProperties}`);
@@ -186,9 +165,6 @@ async function rebuild() {
   db.close();
 }
 
-// Expected minimum based on n8n v1.123.4 AI-capable nodes
-const MIN_EXPECTED_TOOL_VARIANTS = 200;
-
 function validateDatabase(repository: NodeRepository): { passed: boolean; issues: string[] } {
   const issues = [];
 
@@ -229,14 +205,6 @@ function validateDatabase(repository: NodeRepository): { passed: boolean; issues
       issues.push('No AI tools found - check detection logic');
     }
 
-    // Check Tool variants
-    const toolVariantCount = repository.getToolVariantCount();
-    if (toolVariantCount === 0) {
-      issues.push('No Tool variants found - check ToolVariantGenerator');
-    } else if (toolVariantCount < MIN_EXPECTED_TOOL_VARIANTS) {
-      issues.push(`Only ${toolVariantCount} Tool variants found - expected at least ${MIN_EXPECTED_TOOL_VARIANTS}`);
-    }
-
     // Check FTS5 table existence and population
     const ftsTableCheck = db.prepare(`
       SELECT name FROM sqlite_master

src/services/config-validator.ts

@@ -176,107 +176,35 @@ export class ConfigValidator {
   }
   
   /**
-   * Evaluate a single _cnd conditional operator from n8n displayOptions.
+   * Check if a property is visible given current config
-   * Supports: eq, not, gte, lte, gt, lt, between, startsWith, endsWith, includes, regex, exists
    */
-  private static evaluateCondition(
+  protected static isPropertyVisible(prop: any, config: Record<string, any>): boolean {
-    condition: { _cnd: Record<string, any> },
-    configValue: any
-  ): boolean {
-    const cnd = condition._cnd;
-
-    if ('eq' in cnd) return configValue === cnd.eq;
-    if ('not' in cnd) return configValue !== cnd.not;
-    if ('gte' in cnd) return configValue >= cnd.gte;
-    if ('lte' in cnd) return configValue <= cnd.lte;
-    if ('gt' in cnd) return configValue > cnd.gt;
-    if ('lt' in cnd) return configValue < cnd.lt;
-    if ('between' in cnd) {
-      const between = cnd.between;
-      if (!between || typeof between.from === 'undefined' || typeof between.to === 'undefined') {
-        return false; // Invalid between structure
-      }
-      return configValue >= between.from && configValue <= between.to;
-    }
-    if ('startsWith' in cnd) {
-      return typeof configValue === 'string' && configValue.startsWith(cnd.startsWith);
-    }
-    if ('endsWith' in cnd) {
-      return typeof configValue === 'string' && configValue.endsWith(cnd.endsWith);
-    }
-    if ('includes' in cnd) {
-      return typeof configValue === 'string' && configValue.includes(cnd.includes);
-    }
-    if ('regex' in cnd) {
-      if (typeof configValue !== 'string') return false;
-      try {
-        return new RegExp(cnd.regex).test(configValue);
-      } catch {
-        return false; // Invalid regex pattern
-      }
-    }
-    if ('exists' in cnd) {
-      return configValue !== undefined && configValue !== null;
-    }
-
-    // Unknown operator - default to not matching (conservative)
-    return false;
-  }
-
-  /**
-   * Check if a config value matches an expected value.
-   * Handles both plain values and _cnd conditional operators.
-   */
-  private static valueMatches(expectedValue: any, configValue: any): boolean {
-    // Check if this is a _cnd conditional
-    if (expectedValue && typeof expectedValue === 'object' && '_cnd' in expectedValue) {
-      return this.evaluateCondition(expectedValue, configValue);
-    }
-    // Plain value comparison
-    return configValue === expectedValue;
-  }
-
-  /**
-   * Check if a property is visible given current config.
-   * Supports n8n's _cnd conditional operators in displayOptions.
-   */
-  public static isPropertyVisible(prop: any, config: Record<string, any>): boolean {
     if (!prop.displayOptions) return true;
-
+    
-    // Check show conditions - property visible only if ALL conditions match
+    // Check show conditions
     if (prop.displayOptions.show) {
       for (const [key, values] of Object.entries(prop.displayOptions.show)) {
         const configValue = config[key];
         const expectedValues = Array.isArray(values) ? values : [values];
-
+        
-        // Check if ANY expected value matches (OR logic within a key)
+        if (!expectedValues.includes(configValue)) {
-        const anyMatch = expectedValues.some(expected =>
-          this.valueMatches(expected, configValue)
-        );
-
-        if (!anyMatch) {
           return false;
         }
       }
     }
-
+    
-    // Check hide conditions - property hidden if ANY condition matches
+    // Check hide conditions
     if (prop.displayOptions.hide) {
       for (const [key, values] of Object.entries(prop.displayOptions.hide)) {
         const configValue = config[key];
         const expectedValues = Array.isArray(values) ? values : [values];
-
+        
-        // Check if ANY expected value matches (property should be hidden)
+        if (expectedValues.includes(configValue)) {
-        const anyMatch = expectedValues.some(expected =>
-          this.valueMatches(expected, configValue)
-        );
-
-        if (anyMatch) {
           return false;
         }
       }
     }
-
+    
     return true;
   }
   

src/services/error-execution-processor.ts

@@ -1,606 +0,0 @@
-/**
- * Error Execution Processor Service
- *
- * Specialized processor for extracting error context from failed n8n executions.
- * Designed for AI agent debugging workflows with token efficiency.
- *
- * Features:
- * - Auto-identify error nodes
- * - Extract upstream context (input data to error node)
- * - Build execution path from trigger to error
- * - Generate AI-friendly fix suggestions
- */
-
-import {
-  Execution,
-  Workflow,
-  ErrorAnalysis,
-  ErrorSuggestion,
-} from '../types/n8n-api';
-import { logger } from '../utils/logger';
-
-/**
- * Options for error processing
- */
-export interface ErrorProcessorOptions {
-  itemsLimit?: number;           // Default: 2
-  includeStackTrace?: boolean;   // Default: false
-  includeExecutionPath?: boolean; // Default: true
-  workflow?: Workflow;           // Optional: for accurate upstream detection
-}
-
-// Constants
-const MAX_STACK_LINES = 3;
-
-/**
- * Keys that could enable prototype pollution attacks
- * These are blocked entirely from processing
- */
-const DANGEROUS_KEYS = new Set(['__proto__', 'constructor', 'prototype']);
-
-/**
- * Patterns for sensitive data that should be masked in output
- * Expanded from code review recommendations
- */
-const SENSITIVE_PATTERNS = [
-  'password',
-  'secret',
-  'token',
-  'apikey',
-  'api_key',
-  'credential',
-  'auth',
-  'private_key',
-  'privatekey',
-  'bearer',
-  'jwt',
-  'oauth',
-  'certificate',
-  'passphrase',
-  'access_token',
-  'refresh_token',
-  'session',
-  'cookie',
-  'authorization'
-];
-
-/**
- * Process execution for error debugging
- */
-export function processErrorExecution(
-  execution: Execution,
-  options: ErrorProcessorOptions = {}
-): ErrorAnalysis {
-  const {
-    itemsLimit = 2,
-    includeStackTrace = false,
-    includeExecutionPath = true,
-    workflow
-  } = options;
-
-  const resultData = execution.data?.resultData;
-  const error = resultData?.error as Record<string, unknown> | undefined;
-  const runData = resultData?.runData as Record<string, any> || {};
-  const lastNode = resultData?.lastNodeExecuted;
-
-  // 1. Extract primary error info
-  const primaryError = extractPrimaryError(error, lastNode, runData, includeStackTrace);
-
-  // 2. Find and extract upstream context
-  const upstreamContext = extractUpstreamContext(
-    primaryError.nodeName,
-    runData,
-    workflow,
-    itemsLimit
-  );
-
-  // 3. Build execution path if requested
-  const executionPath = includeExecutionPath
-    ? buildExecutionPath(primaryError.nodeName, runData, workflow)
-    : undefined;
-
-  // 4. Find additional errors (for batch failures)
-  const additionalErrors = findAdditionalErrors(
-    primaryError.nodeName,
-    runData
-  );
-
-  // 5. Generate AI suggestions
-  const suggestions = generateSuggestions(primaryError, upstreamContext);
-
-  return {
-    primaryError,
-    upstreamContext,
-    executionPath,
-    additionalErrors: additionalErrors.length > 0 ? additionalErrors : undefined,
-    suggestions: suggestions.length > 0 ? suggestions : undefined
-  };
-}
-
-/**
- * Extract primary error information
- */
-function extractPrimaryError(
-  error: Record<string, unknown> | undefined,
-  lastNode: string | undefined,
-  runData: Record<string, any>,
-  includeFullStackTrace: boolean
-): ErrorAnalysis['primaryError'] {
-  // Error info from resultData.error
-  const errorNode = error?.node as Record<string, unknown> | undefined;
-  const nodeName = (errorNode?.name as string) || lastNode || 'Unknown';
-
-  // Also check runData for node-level errors
-  const nodeRunData = runData[nodeName];
-  const nodeError = nodeRunData?.[0]?.error;
-
-  const stackTrace = (error?.stack || nodeError?.stack) as string | undefined;
-
-  return {
-    message: (error?.message || nodeError?.message || 'Unknown error') as string,
-    errorType: (error?.name || nodeError?.name || 'Error') as string,
-    nodeName,
-    nodeType: (errorNode?.type || '') as string,
-    nodeId: errorNode?.id as string | undefined,
-    nodeParameters: extractRelevantParameters(errorNode?.parameters),
-    stackTrace: includeFullStackTrace ? stackTrace : truncateStackTrace(stackTrace)
-  };
-}
-
-/**
- * Extract upstream context (input data to error node)
- */
-function extractUpstreamContext(
-  errorNodeName: string,
-  runData: Record<string, any>,
-  workflow?: Workflow,
-  itemsLimit: number = 2
-): ErrorAnalysis['upstreamContext'] | undefined {
-  // Strategy 1: Use workflow connections if available
-  if (workflow) {
-    const upstreamNode = findUpstreamNode(errorNodeName, workflow);
-    if (upstreamNode) {
-      const context = extractNodeOutput(upstreamNode, runData, itemsLimit);
-      if (context) {
-        // Enrich with node type from workflow
-        const nodeInfo = workflow.nodes.find(n => n.name === upstreamNode);
-        if (nodeInfo) {
-          context.nodeType = nodeInfo.type;
-        }
-        return context;
-      }
-    }
-  }
-
-  // Strategy 2: Heuristic - find node that produced data most recently before error
-  const successfulNodes = Object.entries(runData)
-    .filter(([name, data]) => {
-      if (name === errorNodeName) return false;
-      const runs = data as any[];
-      return runs?.[0]?.data?.main?.[0]?.length > 0 && !runs?.[0]?.error;
-    })
-    .map(([name, data]) => ({
-      name,
-      executionTime: (data as any[])?.[0]?.executionTime || 0,
-      startTime: (data as any[])?.[0]?.startTime || 0
-    }))
-    .sort((a, b) => b.startTime - a.startTime);
-
-  if (successfulNodes.length > 0) {
-    const upstreamName = successfulNodes[0].name;
-    return extractNodeOutput(upstreamName, runData, itemsLimit);
-  }
-
-  return undefined;
-}
-
-/**
- * Find upstream node using workflow connections
- * Connections format: { sourceNode: { main: [[{node: targetNode, type, index}]] } }
- */
-function findUpstreamNode(
-  targetNode: string,
-  workflow: Workflow
-): string | undefined {
-  for (const [sourceName, outputs] of Object.entries(workflow.connections)) {
-    const connections = outputs as Record<string, any>;
-    const mainOutputs = connections?.main || [];
-
-    for (const outputBranch of mainOutputs) {
-      if (!Array.isArray(outputBranch)) continue;
-      for (const connection of outputBranch) {
-        if (connection?.node === targetNode) {
-          return sourceName;
-        }
-      }
-    }
-  }
-  return undefined;
-}
-
-/**
- * Find all upstream nodes (for building complete path)
- */
-function findAllUpstreamNodes(
-  targetNode: string,
-  workflow: Workflow,
-  visited: Set<string> = new Set()
-): string[] {
-  const path: string[] = [];
-  let currentNode = targetNode;
-
-  while (currentNode && !visited.has(currentNode)) {
-    visited.add(currentNode);
-    const upstream = findUpstreamNode(currentNode, workflow);
-    if (upstream) {
-      path.unshift(upstream);
-      currentNode = upstream;
-    } else {
-      break;
-    }
-  }
-
-  return path;
-}
-
-/**
- * Extract node output with sampling and sanitization
- */
-function extractNodeOutput(
-  nodeName: string,
-  runData: Record<string, any>,
-  itemsLimit: number
-): ErrorAnalysis['upstreamContext'] | undefined {
-  const nodeData = runData[nodeName];
-  if (!nodeData?.[0]?.data?.main?.[0]) return undefined;
-
-  const items = nodeData[0].data.main[0];
-
-  // Sanitize sample items to remove sensitive data
-  const rawSamples = items.slice(0, itemsLimit);
-  const sanitizedSamples = rawSamples.map((item: unknown) => sanitizeData(item));
-
-  return {
-    nodeName,
-    nodeType: '', // Will be enriched if workflow available
-    itemCount: items.length,
-    sampleItems: sanitizedSamples,
-    dataStructure: extractStructure(items[0])
-  };
-}
-
-/**
- * Build execution path leading to error
- */
-function buildExecutionPath(
-  errorNodeName: string,
-  runData: Record<string, any>,
-  workflow?: Workflow
-): ErrorAnalysis['executionPath'] {
-  const path: ErrorAnalysis['executionPath'] = [];
-
-  // If we have workflow, trace connections backward for ordered path
-  if (workflow) {
-    const upstreamNodes = findAllUpstreamNodes(errorNodeName, workflow);
-
-    // Add upstream nodes
-    for (const nodeName of upstreamNodes) {
-      const nodeData = runData[nodeName];
-      const runs = nodeData as any[] | undefined;
-      const hasError = runs?.[0]?.error;
-      const itemCount = runs?.[0]?.data?.main?.[0]?.length || 0;
-
-      path.push({
-        nodeName,
-        status: hasError ? 'error' : (runs ? 'success' : 'skipped'),
-        itemCount,
-        executionTime: runs?.[0]?.executionTime
-      });
-    }
-
-    // Add error node
-    const errorNodeData = runData[errorNodeName];
-    path.push({
-      nodeName: errorNodeName,
-      status: 'error',
-      itemCount: 0,
-      executionTime: errorNodeData?.[0]?.executionTime
-    });
-  } else {
-    // Without workflow, list all executed nodes by execution order (best effort)
-    const nodesByTime = Object.entries(runData)
-      .map(([name, data]) => ({
-        name,
-        data: data as any[],
-        startTime: (data as any[])?.[0]?.startTime || 0
-      }))
-      .sort((a, b) => a.startTime - b.startTime);
-
-    for (const { name, data } of nodesByTime) {
-      path.push({
-        nodeName: name,
-        status: data?.[0]?.error ? 'error' : 'success',
-        itemCount: data?.[0]?.data?.main?.[0]?.length || 0,
-        executionTime: data?.[0]?.executionTime
-      });
-    }
-  }
-
-  return path;
-}
-
-/**
- * Find additional error nodes (for batch/parallel failures)
- */
-function findAdditionalErrors(
-  primaryErrorNode: string,
-  runData: Record<string, any>
-): Array<{ nodeName: string; message: string }> {
-  const additional: Array<{ nodeName: string; message: string }> = [];
-
-  for (const [nodeName, data] of Object.entries(runData)) {
-    if (nodeName === primaryErrorNode) continue;
-
-    const runs = data as any[];
-    const error = runs?.[0]?.error;
-    if (error) {
-      additional.push({
-        nodeName,
-        message: error.message || 'Unknown error'
-      });
-    }
-  }
-
-  return additional;
-}
-
-/**
- * Generate AI-friendly error suggestions based on patterns
- */
-function generateSuggestions(
-  error: ErrorAnalysis['primaryError'],
-  upstream?: ErrorAnalysis['upstreamContext']
-): ErrorSuggestion[] {
-  const suggestions: ErrorSuggestion[] = [];
-  const message = error.message.toLowerCase();
-
-  // Pattern: Missing required field
-  if (message.includes('required') || message.includes('must be provided') || message.includes('is required')) {
-    suggestions.push({
-      type: 'fix',
-      title: 'Missing Required Field',
-      description: `Check "${error.nodeName}" parameters for required fields. Error indicates a mandatory value is missing.`,
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Empty input
-  if (upstream?.itemCount === 0) {
-    suggestions.push({
-      type: 'investigate',
-      title: 'No Input Data',
-      description: `"${error.nodeName}" received 0 items from "${upstream.nodeName}". Check upstream node's filtering or data source.`,
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Authentication error
-  if (message.includes('auth') || message.includes('credentials') ||
-      message.includes('401') || message.includes('unauthorized') ||
-      message.includes('forbidden') || message.includes('403')) {
-    suggestions.push({
-      type: 'fix',
-      title: 'Authentication Issue',
-      description: 'Verify credentials are configured correctly. Check API key permissions and expiration.',
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Rate limiting
-  if (message.includes('rate limit') || message.includes('429') ||
-      message.includes('too many requests') || message.includes('throttle')) {
-    suggestions.push({
-      type: 'workaround',
-      title: 'Rate Limited',
-      description: 'Add delay between requests or reduce batch size. Consider using retry with exponential backoff.',
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Connection error
-  if (message.includes('econnrefused') || message.includes('enotfound') ||
-      message.includes('etimedout') || message.includes('network') ||
-      message.includes('connect')) {
-    suggestions.push({
-      type: 'investigate',
-      title: 'Network/Connection Error',
-      description: 'Check if the external service is reachable. Verify URL, firewall rules, and DNS resolution.',
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Invalid JSON
-  if (message.includes('json') || message.includes('parse error') ||
-      message.includes('unexpected token') || message.includes('syntax error')) {
-    suggestions.push({
-      type: 'fix',
-      title: 'Invalid JSON Format',
-      description: 'Check the data format. Ensure JSON is properly structured with correct syntax.',
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Field not found / invalid path
-  if (message.includes('not found') || message.includes('undefined') ||
-      message.includes('cannot read property') || message.includes('does not exist')) {
-    suggestions.push({
-      type: 'investigate',
-      title: 'Missing Data Field',
-      description: 'A referenced field does not exist in the input data. Check data structure and field names.',
-      confidence: 'medium'
-    });
-  }
-
-  // Pattern: Type error
-  if (message.includes('type') && (message.includes('expected') || message.includes('invalid'))) {
-    suggestions.push({
-      type: 'fix',
-      title: 'Data Type Mismatch',
-      description: 'Input data type does not match expected type. Check if strings/numbers/arrays are used correctly.',
-      confidence: 'medium'
-    });
-  }
-
-  // Pattern: Timeout
-  if (message.includes('timeout') || message.includes('timed out')) {
-    suggestions.push({
-      type: 'workaround',
-      title: 'Operation Timeout',
-      description: 'The operation took too long. Consider increasing timeout, reducing data size, or optimizing the query.',
-      confidence: 'high'
-    });
-  }
-
-  // Pattern: Permission denied
-  if (message.includes('permission') || message.includes('access denied') || message.includes('not allowed')) {
-    suggestions.push({
-      type: 'fix',
-      title: 'Permission Denied',
-      description: 'The operation lacks required permissions. Check user roles, API scopes, or resource access settings.',
-      confidence: 'high'
-    });
-  }
-
-  // Generic NodeOperationError guidance
-  if (error.errorType === 'NodeOperationError' && suggestions.length === 0) {
-    suggestions.push({
-      type: 'investigate',
-      title: 'Node Configuration Issue',
-      description: `Review "${error.nodeName}" parameters and operation settings. Validate against the node's requirements.`,
-      confidence: 'medium'
-    });
-  }
-
-  return suggestions;
-}
-
-// Helper functions
-
-/**
- * Check if a key contains sensitive patterns
- */
-function isSensitiveKey(key: string): boolean {
-  const lowerKey = key.toLowerCase();
-  return SENSITIVE_PATTERNS.some(pattern => lowerKey.includes(pattern));
-}
-
-/**
- * Recursively sanitize data by removing dangerous keys and masking sensitive values
- *
- * @param data - The data to sanitize
- * @param depth - Current recursion depth
- * @param maxDepth - Maximum recursion depth (default: 10)
- * @returns Sanitized data with sensitive values masked
- */
-function sanitizeData(data: unknown, depth = 0, maxDepth = 10): unknown {
-  // Prevent infinite recursion
-  if (depth >= maxDepth) {
-    return '[max depth reached]';
-  }
-
-  // Handle null/undefined
-  if (data === null || data === undefined) {
-    return data;
-  }
-
-  // Handle primitives
-  if (typeof data !== 'object') {
-    // Truncate long strings
-    if (typeof data === 'string' && data.length > 500) {
-      return '[truncated]';
-    }
-    return data;
-  }
-
-  // Handle arrays
-  if (Array.isArray(data)) {
-    return data.map(item => sanitizeData(item, depth + 1, maxDepth));
-  }
-
-  // Handle objects
-  const sanitized: Record<string, unknown> = {};
-  const obj = data as Record<string, unknown>;
-
-  for (const [key, value] of Object.entries(obj)) {
-    // Block prototype pollution attempts
-    if (DANGEROUS_KEYS.has(key)) {
-      logger.warn(`Blocked potentially dangerous key: ${key}`);
-      continue;
-    }
-
-    // Mask sensitive fields
-    if (isSensitiveKey(key)) {
-      sanitized[key] = '[REDACTED]';
-      continue;
-    }
-
-    // Recursively sanitize nested values
-    sanitized[key] = sanitizeData(value, depth + 1, maxDepth);
-  }
-
-  return sanitized;
-}
-
-/**
- * Extract relevant parameters (filtering sensitive data)
- */
-function extractRelevantParameters(params: unknown): Record<string, unknown> | undefined {
-  if (!params || typeof params !== 'object') return undefined;
-
-  const sanitized = sanitizeData(params);
-  if (!sanitized || typeof sanitized !== 'object' || Array.isArray(sanitized)) {
-    return undefined;
-  }
-
-  return Object.keys(sanitized).length > 0 ? sanitized as Record<string, unknown> : undefined;
-}
-
-/**
- * Truncate stack trace to first few lines
- */
-function truncateStackTrace(stack?: string): string | undefined {
-  if (!stack) return undefined;
-  const lines = stack.split('\n');
-  if (lines.length <= MAX_STACK_LINES) return stack;
-  return lines.slice(0, MAX_STACK_LINES).join('\n') + `\n... (${lines.length - MAX_STACK_LINES} more lines)`;
-}
-
-/**
- * Extract data structure from an item
- */
-function extractStructure(item: unknown, depth = 0, maxDepth = 3): Record<string, unknown> {
-  if (depth >= maxDepth) return { _type: typeof item };
-
-  if (item === null || item === undefined) {
-    return { _type: 'null' };
-  }
-
-  if (Array.isArray(item)) {
-    if (item.length === 0) return { _type: 'array', _length: 0 };
-    return {
-      _type: 'array',
-      _length: item.length,
-      _itemStructure: extractStructure(item[0], depth + 1, maxDepth)
-    };
-  }
-
-  if (typeof item === 'object') {
-    const structure: Record<string, unknown> = {};
-    for (const [key, value] of Object.entries(item)) {
-      structure[key] = extractStructure(value, depth + 1, maxDepth);
-    }
-    return structure;
-  }
-
-  return { _type: typeof item };
-}

src/services/execution-processor.ts

@@ -21,10 +21,8 @@ import {
   FilteredExecutionResponse,
   FilteredNodeData,
   ExecutionStatus,
-  Workflow,
 } from '../types/n8n-api';
 import { logger } from '../utils/logger';
-import { processErrorExecution } from './error-execution-processor';
 
 /**
  * Size estimation and threshold constants
@@ -346,8 +344,7 @@ function truncateItems(
  */
 export function filterExecutionData(
   execution: Execution,
-  options: ExecutionFilterOptions,
+  options: ExecutionFilterOptions
-  workflow?: Workflow
 ): FilteredExecutionResponse {
   const mode = options.mode || 'summary';
 
@@ -391,33 +388,6 @@ export function filterExecutionData(
     return response;
   }
 
-  // Handle error mode
-  if (mode === 'error') {
-    const errorAnalysis = processErrorExecution(execution, {
-      itemsLimit: options.errorItemsLimit ?? 2,
-      includeStackTrace: options.includeStackTrace ?? false,
-      includeExecutionPath: options.includeExecutionPath !== false,
-      workflow
-    });
-
-    const runData = execution.data?.resultData?.runData || {};
-    const executedNodes = Object.keys(runData).length;
-
-    response.errorInfo = errorAnalysis;
-    response.summary = {
-      totalNodes: executedNodes,
-      executedNodes,
-      totalItems: 0,
-      hasMoreData: false
-    };
-
-    if (execution.data?.resultData?.error) {
-      response.error = execution.data.resultData.error as Record<string, unknown>;
-    }
-
-    return response;
-  }
-
   // Handle no data case
   if (!execution.data?.resultData?.runData) {
     response.summary = {
@@ -538,13 +508,12 @@ export function filterExecutionData(
  */
 export function processExecution(
   execution: Execution,
-  options: ExecutionFilterOptions = {},
+  options: ExecutionFilterOptions = {}
-  workflow?: Workflow
 ): FilteredExecutionResponse | Execution {
   // Legacy behavior: if no mode specified and no filtering options, return original
   if (!options.mode && !options.nodeNames && options.itemsLimit === undefined) {
     return execution;
   }
 
-  return filterExecutionData(execution, options, workflow);
+  return filterExecutionData(execution, options);
 }

src/services/n8n-validation.ts

@@ -248,32 +248,23 @@ export function validateWorkflowStructure(workflow: Partial<Workflow>): string[]
       const connectedNodes = new Set<string>();
 
       // Collect all nodes that appear in connections (as source or target)
-      // Check ALL connection types, not just 'main' - AI workflows use ai_tool, ai_languageModel, etc.
-      const ALL_CONNECTION_TYPES = ['main', 'error', 'ai_tool', 'ai_languageModel', 'ai_memory', 'ai_embedding', 'ai_vectorStore'] as const;
-
       Object.entries(workflow.connections).forEach(([sourceName, connection]) => {
         connectedNodes.add(sourceName); // Node has outgoing connection
 
-        // Check all connection types for target nodes
+        if (connection.main && Array.isArray(connection.main)) {
-        ALL_CONNECTION_TYPES.forEach(connType => {
+          connection.main.forEach((outputs) => {
-          const connData = (connection as Record<string, unknown>)[connType];
+            if (Array.isArray(outputs)) {
-          if (connData && Array.isArray(connData)) {
+              outputs.forEach((target) => {
-            connData.forEach((outputs) => {
+                connectedNodes.add(target.node); // Node has incoming connection
-              if (Array.isArray(outputs)) {
+              });
-                outputs.forEach((target: { node: string }) => {
+            }
-                  if (target?.node) {
+          });
-                    connectedNodes.add(target.node); // Node has incoming connection
+        }
-                  }
-                });
-              }
-            });
-          }
-        });
       });
 
       // Find disconnected nodes (excluding non-executable nodes and triggers)
       // Non-executable nodes (sticky notes) are UI-only and don't need connections
-      // Trigger nodes need either outgoing connections OR inbound AI connections (for mcpTrigger)
+      // Trigger nodes only need outgoing connections
       const disconnectedNodes = workflow.nodes.filter(node => {
         // Skip non-executable nodes (sticky notes, etc.) - they're UI-only annotations
         if (isNonExecutableNode(node.type)) {
@@ -283,12 +274,9 @@ export function validateWorkflowStructure(workflow: Partial<Workflow>): string[]
         const isConnected = connectedNodes.has(node.name);
         const isNodeTrigger = isTriggerNode(node.type);
 
-        // Trigger nodes need outgoing connections OR inbound connections (for mcpTrigger)
+        // Trigger nodes only need outgoing connections
-        // mcpTrigger is special: it has "trigger" in its name but only receives inbound ai_tool connections
         if (isNodeTrigger) {
-          const hasOutgoingConnections = !!workflow.connections?.[node.name];
+          return !workflow.connections?.[node.name]; // Disconnected if no outgoing connections
-          const hasInboundConnections = isConnected;
-          return !hasOutgoingConnections && !hasInboundConnections; // Disconnected if NEITHER
         }
 
         // Regular nodes need at least one connection (incoming or outgoing)
@@ -343,16 +331,24 @@ export function validateWorkflowStructure(workflow: Partial<Workflow>): string[]
   }
 
   // Validate active workflows have activatable triggers
-  // NOTE: Since n8n 2.0, executeWorkflowTrigger is now activatable and MUST be activated to work
+  // Issue #351: executeWorkflowTrigger cannot activate a workflow
+  // It can only be invoked by other workflows
   if ((workflow as any).active === true && workflow.nodes && workflow.nodes.length > 0) {
     const activatableTriggers = workflow.nodes.filter(node =>
       !node.disabled && isActivatableTrigger(node.type)
     );
 
-    if (activatableTriggers.length === 0) {
+    const executeWorkflowTriggers = workflow.nodes.filter(node =>
+      !node.disabled && node.type.toLowerCase().includes('executeworkflow')
+    );
+
+    if (activatableTriggers.length === 0 && executeWorkflowTriggers.length > 0) {
+      // Workflow is active but only has executeWorkflowTrigger nodes
+      const triggerNames = executeWorkflowTriggers.map(n => n.name).join(', ');
       errors.push(
-        'Cannot activate workflow: No activatable trigger nodes found. ' +
+        `Cannot activate workflow with only Execute Workflow Trigger nodes (${triggerNames}). ` +
-        'Workflows must have at least one enabled trigger node (webhook, schedule, executeWorkflowTrigger, etc.).'
+        'Execute Workflow Trigger can only be invoked by other workflows, not activated. ' +
+        'Either deactivate the workflow or add a webhook/schedule/polling trigger.'
       );
     }
   }

src/services/tool-variant-generator.ts

@@ -1,158 +0,0 @@
-/**
- * Tool Variant Generator
- *
- * Generates Tool variant nodes for nodes with usableAsTool: true.
- *
- * n8n dynamically creates Tool variants (e.g., supabaseTool from supabase)
- * that can be connected to AI Agents. These variants have:
- * - A 'Tool' suffix on the node type
- * - An additional 'toolDescription' property
- * - Output type 'ai_tool' instead of 'main'
- */
-
-import type { ParsedNode } from '../parsers/node-parser';
-
-export class ToolVariantGenerator {
-  /**
-   * Generate a Tool variant from a base node with usableAsTool: true
-   *
-   * @param baseNode - The base ParsedNode that has isAITool: true
-   * @returns A new ParsedNode representing the Tool variant, or null if not applicable
-   */
-  generateToolVariant(baseNode: ParsedNode): ParsedNode | null {
-    // Only generate for nodes with usableAsTool: true (isAITool)
-    if (!baseNode.isAITool) {
-      return null;
-    }
-
-    // Don't generate Tool variant for nodes that are already Tool variants
-    if (baseNode.isToolVariant) {
-      return null;
-    }
-
-    // Don't generate for trigger nodes (they can't be used as tools)
-    if (baseNode.isTrigger) {
-      return null;
-    }
-
-    // Validate nodeType exists
-    if (!baseNode.nodeType) {
-      return null;
-    }
-
-    // Generate the Tool variant node type
-    // e.g., nodes-base.supabase -> nodes-base.supabaseTool
-    const toolNodeType = `${baseNode.nodeType}Tool`;
-
-    // Ensure properties is an array to prevent spread operator errors
-    const baseProperties = Array.isArray(baseNode.properties) ? baseNode.properties : [];
-
-    return {
-      ...baseNode,
-      nodeType: toolNodeType,
-      displayName: `${baseNode.displayName} Tool`,
-      description: baseNode.description
-        ? `${baseNode.description} (AI Tool variant for use with AI Agents)`
-        : 'AI Tool variant for use with AI Agents',
-
-      // Mark as Tool variant
-      isToolVariant: true,
-      toolVariantOf: baseNode.nodeType,
-      hasToolVariant: false, // Tool variants don't have further variants
-
-      // Override outputs for Tool variant
-      outputs: [{ type: 'ai_tool', displayName: 'Tool' }],
-      outputNames: ['Tool'],
-
-      // Add toolDescription property at the beginning
-      properties: this.addToolDescriptionProperty(baseProperties, baseNode.displayName),
-    };
-  }
-
-  /**
-   * Add the toolDescription property to the beginning of the properties array
-   */
-  private addToolDescriptionProperty(properties: any[], displayName: string): any[] {
-    const toolDescriptionProperty = {
-      displayName: 'Tool Description',
-      name: 'toolDescription',
-      type: 'string',
-      default: '',
-      required: false,
-      description: 'Description for the AI to understand what this tool does and when to use it',
-      typeOptions: {
-        rows: 3
-      },
-      placeholder: `e.g., Use this tool to ${this.generateDescriptionPlaceholder(displayName)}`
-    };
-
-    return [toolDescriptionProperty, ...properties];
-  }
-
-  /**
-   * Generate a placeholder description based on the node display name
-   */
-  private generateDescriptionPlaceholder(displayName: string): string {
-    const lowerName = displayName.toLowerCase();
-
-    // Common patterns
-    if (lowerName.includes('database') || lowerName.includes('sql')) {
-      return 'query and manage data in the database';
-    }
-    if (lowerName.includes('email') || lowerName.includes('mail')) {
-      return 'send and manage emails';
-    }
-    if (lowerName.includes('sheet') || lowerName.includes('spreadsheet')) {
-      return 'read and write spreadsheet data';
-    }
-    if (lowerName.includes('file') || lowerName.includes('drive') || lowerName.includes('storage')) {
-      return 'manage files and storage';
-    }
-    if (lowerName.includes('message') || lowerName.includes('chat') || lowerName.includes('slack')) {
-      return 'send messages and communicate';
-    }
-    if (lowerName.includes('http') || lowerName.includes('api') || lowerName.includes('request')) {
-      return 'make API requests and fetch data';
-    }
-    if (lowerName.includes('calendar') || lowerName.includes('event')) {
-      return 'manage calendar events and schedules';
-    }
-
-    // Default placeholder
-    return `interact with ${displayName}`;
-  }
-
-  /**
-   * Check if a node type looks like a Tool variant.
-   * Valid Tool variants must:
-   * - End with 'Tool' but not 'ToolTool'
-   * - Have a valid package.nodeName pattern (contain a dot)
-   * - Have content after the dot before 'Tool' suffix
-   */
-  static isToolVariantNodeType(nodeType: string): boolean {
-    if (!nodeType || !nodeType.endsWith('Tool') || nodeType.endsWith('ToolTool')) {
-      return false;
-    }
-    // The base part (without 'Tool' suffix) should be a valid node pattern
-    const basePart = nodeType.slice(0, -4);
-    // Valid pattern: package.nodeName (must contain a dot and have content after it)
-    return basePart.includes('.') && basePart.split('.').pop()!.length > 0;
-  }
-
-  /**
-   * Get the base node type from a Tool variant node type
-   */
-  static getBaseNodeType(toolNodeType: string): string | null {
-    if (!ToolVariantGenerator.isToolVariantNodeType(toolNodeType)) {
-      return null;
-    }
-    return toolNodeType.slice(0, -4); // Remove 'Tool' suffix
-  }
-
-  /**
-   * Get the Tool variant node type from a base node type
-   */
-  static getToolVariantNodeType(baseNodeType: string): string {
-    return `${baseNodeType}Tool`;
-  }
-}

src/services/workflow-auto-fixer.ts

@@ -30,9 +30,8 @@ export type FixType =
   | 'error-output-config'
   | 'node-type-correction'
   | 'webhook-missing-path'
-  | 'typeversion-upgrade'     // Proactive version upgrades
+  | 'typeversion-upgrade'     // NEW: Proactive version upgrades
-  | 'version-migration'       // Smart version migrations with breaking changes
+  | 'version-migration';       // NEW: Smart version migrations with breaking changes
-  | 'tool-variant-correction'; // Fix base nodes used as AI tools when Tool variant exists
 
 export interface AutoFixConfig {
   applyFixes: boolean;
@@ -160,12 +159,7 @@ export class WorkflowAutoFixer {
       this.processWebhookPathFixes(validationResult, nodeMap, operations, fixes);
     }
 
-    // Process tool variant corrections (HIGH confidence)
+    // NEW: Process version upgrades (HIGH/MEDIUM confidence)
-    if (!fullConfig.fixTypes || fullConfig.fixTypes.includes('tool-variant-correction')) {
-      this.processToolVariantFixes(validationResult, nodeMap, workflow, operations, fixes);
-    }
-
-    // Process version upgrades (HIGH/MEDIUM confidence)
     if (!fullConfig.fixTypes || fullConfig.fixTypes.includes('typeversion-upgrade')) {
       await this.processVersionUpgradeFixes(workflow, nodeMap, operations, fixes, postUpdateGuidance);
     }
@@ -465,69 +459,6 @@ export class WorkflowAutoFixer {
     }
   }
 
-  /**
-   * Process tool variant corrections for base nodes incorrectly used as AI tools.
-   *
-   * When a base node (e.g., n8n-nodes-base.supabase) is connected via ai_tool output
-   * but has a Tool variant available (e.g., n8n-nodes-base.supabaseTool), this fix
-   * replaces the node type with the correct Tool variant.
-   *
-   * @param validationResult - Validation result containing errors to process
-   * @param nodeMap - Map of node names/IDs to node objects
-   * @param _workflow - Workflow object (unused, kept for API consistency with other fix methods)
-   * @param operations - Array to push generated diff operations to
-   * @param fixes - Array to push generated fix records to
-   */
-  private processToolVariantFixes(
-    validationResult: WorkflowValidationResult,
-    nodeMap: Map<string, WorkflowNode>,
-    _workflow: Workflow,
-    operations: WorkflowDiffOperation[],
-    fixes: FixOperation[]
-  ): void {
-    for (const error of validationResult.errors) {
-      // Check for errors with the WRONG_NODE_TYPE_FOR_AI_TOOL code
-      // ValidationIssue interface includes optional code and fix properties
-      if (error.code !== 'WRONG_NODE_TYPE_FOR_AI_TOOL' || !error.fix) {
-        continue;
-      }
-
-      const fix = error.fix;
-      if (fix.type !== 'tool-variant-correction') {
-        continue;
-      }
-
-      const nodeName = error.nodeName || error.nodeId;
-      if (!nodeName) continue;
-
-      const node = nodeMap.get(nodeName);
-      if (!node) continue;
-
-      // Create the fix record
-      fixes.push({
-        node: nodeName,
-        field: 'type',
-        type: 'tool-variant-correction',
-        before: fix.currentType,
-        after: fix.suggestedType,
-        confidence: 'high', // This is a direct match - we know exactly which type to use
-        description: fix.description || `Replace "${fix.currentType}" with Tool variant "${fix.suggestedType}"`
-      });
-
-      // Create the update operation
-      const operation: UpdateNodeOperation = {
-        type: 'updateNode',
-        nodeId: nodeName,
-        updates: {
-          type: fix.suggestedType
-        }
-      };
-      operations.push(operation);
-
-      logger.info(`Generated tool variant correction for ${nodeName}: ${fix.currentType} → ${fix.suggestedType}`);
-    }
-  }
-
   /**
    * Set a nested value in an object using a path array
    * Includes validation to prevent silent failures
@@ -676,8 +607,7 @@ export class WorkflowAutoFixer {
         'node-type-correction': 0,
         'webhook-missing-path': 0,
         'typeversion-upgrade': 0,
-        'version-migration': 0,
+        'version-migration': 0
-        'tool-variant-correction': 0
       },
       byConfidence: {
         'high': 0,
@@ -726,9 +656,6 @@ export class WorkflowAutoFixer {
     if (stats.byType['version-migration'] > 0) {
       parts.push(`${stats.byType['version-migration']} version ${stats.byType['version-migration'] === 1 ? 'migration' : 'migrations'}`);
     }
-    if (stats.byType['tool-variant-correction'] > 0) {
-      parts.push(`${stats.byType['tool-variant-correction']} tool variant ${stats.byType['tool-variant-correction'] === 1 ? 'correction' : 'corrections'}`);
-    }
 
     if (parts.length === 0) {
       return `Fixed ${stats.total} ${stats.total === 1 ? 'issue' : 'issues'}`;

src/services/workflow-diff-engine.ts

@@ -897,13 +897,13 @@ export class WorkflowDiffEngine {
   // Workflow activation operation validators
   private validateActivateWorkflow(workflow: Workflow, operation: ActivateWorkflowOperation): string | null {
     // Check if workflow has at least one activatable trigger
-    // NOTE: Since n8n 2.0, executeWorkflowTrigger is activatable and MUST be activated to work
+    // Issue #351: executeWorkflowTrigger cannot activate workflows
     const activatableTriggers = workflow.nodes.filter(
       node => !node.disabled && isActivatableTrigger(node.type)
     );
 
     if (activatableTriggers.length === 0) {
-      return 'Cannot activate workflow: No activatable trigger nodes found. Workflows must have at least one enabled trigger node (webhook, schedule, executeWorkflowTrigger, etc.).';
+      return 'Cannot activate workflow: No activatable trigger nodes found. Workflows must have at least one enabled trigger node (webhook, schedule, email, etc.). Note: executeWorkflowTrigger cannot activate workflows as they can only be invoked by other workflows.';
     }
 
     return null;

src/services/workflow-validator.ts

@@ -12,10 +12,8 @@ import { NodeSimilarityService, NodeSuggestion } from './node-similarity-service
 import { NodeTypeNormalizer } from '../utils/node-type-normalizer';
 import { Logger } from '../utils/logger';
 import { validateAISpecificNodes, hasAINodes } from './ai-node-validator';
-import { isAIToolSubNode } from './ai-tool-validators';
 import { isTriggerNode } from '../utils/node-type-utils';
 import { isNonExecutableNode } from '../utils/node-classification';
-import { ToolVariantGenerator } from './tool-variant-generator';
 const logger = new Logger({ prefix: '[WorkflowValidator]' });
 
 interface WorkflowNode {
@@ -56,19 +54,12 @@ interface WorkflowJson {
   meta?: any;
 }
 
-export interface ValidationIssue {
+interface ValidationIssue {
   type: 'error' | 'warning';
   nodeId?: string;
   nodeName?: string;
   message: string;
   details?: any;
-  code?: string;
-  fix?: {
-    type: string;
-    currentType?: string;
-    suggestedType?: string;
-    description?: string;
-  };
 }
 
 export interface WorkflowValidationResult {
@@ -495,14 +486,9 @@ export class WorkflowValidator {
         }
 
         // Validate node configuration
-        // Add @version to parameters for displayOptions evaluation (supports _cnd operators)
-        const paramsWithVersion = {
-          '@version': node.typeVersion || 1,
-          ...node.parameters
-        };
         const nodeValidation = this.nodeValidator.validateWithMode(
           node.type,
-          paramsWithVersion,
+          node.parameters,
           nodeInfo.properties || [],
           'operation',
           profile as any
@@ -599,9 +585,6 @@ export class WorkflowValidator {
 
       // Check AI tool outputs
       if (outputs.ai_tool) {
-        // Validate that the source node can actually output ai_tool
-        this.validateAIToolSource(sourceNode, result);
-
         this.validateConnectionOutputs(
           sourceName,
           outputs.ai_tool,
@@ -875,83 +858,6 @@ export class WorkflowValidator {
     }
   }
 
-  /**
-   * Validate that a node can actually output ai_tool connections.
-   *
-   * Valid ai_tool sources are:
-   * 1. Langchain tool nodes (in AI_TOOL_VALIDATORS)
-   * 2. Tool variant nodes (e.g., nodes-base.supabaseTool)
-   *
-   * If a base node (e.g., nodes-base.supabase) is used with ai_tool connection
-   * but it has a Tool variant available, this is an error.
-   */
-  private validateAIToolSource(
-    sourceNode: WorkflowNode,
-    result: WorkflowValidationResult
-  ): void {
-    const normalizedType = NodeTypeNormalizer.normalizeToFullForm(sourceNode.type);
-
-    // Check if it's a known langchain tool node
-    if (isAIToolSubNode(normalizedType)) {
-      return; // Valid - it's a langchain tool
-    }
-
-    // Get node info from repository (single lookup, reused below)
-    const nodeInfo = this.nodeRepository.getNode(normalizedType);
-
-    // Check if it's a Tool variant (ends with Tool and is in database as isToolVariant)
-    if (ToolVariantGenerator.isToolVariantNodeType(normalizedType)) {
-      // It looks like a Tool variant, verify it exists in database
-      if (nodeInfo?.isToolVariant) {
-        return; // Valid - it's a Tool variant
-      }
-    }
-
-    if (!nodeInfo) {
-      // Node not found in database - might be a community node or unknown
-      // Don't error here, let other validation handle unknown nodes
-      return;
-    }
-
-    // Check if this is a base node that has a Tool variant available
-    if (nodeInfo.hasToolVariant) {
-      const toolVariantType = ToolVariantGenerator.getToolVariantNodeType(normalizedType);
-      const workflowToolVariantType = NodeTypeNormalizer.toWorkflowFormat(toolVariantType);
-
-      result.errors.push({
-        type: 'error',
-        nodeId: sourceNode.id,
-        nodeName: sourceNode.name,
-        message: `Node "${sourceNode.name}" uses "${sourceNode.type}" which cannot output ai_tool connections. ` +
-          `Use the Tool variant "${workflowToolVariantType}" instead for AI Agent integration.`,
-        code: 'WRONG_NODE_TYPE_FOR_AI_TOOL',
-        fix: {
-          type: 'tool-variant-correction',
-          currentType: sourceNode.type,
-          suggestedType: workflowToolVariantType,
-          description: `Change node type from "${sourceNode.type}" to "${workflowToolVariantType}"`
-        }
-      });
-      return;
-    }
-
-    // Check if it's an AI-capable node (isAITool flag) but not a Tool variant
-    if (nodeInfo.isAITool) {
-      // This node is AI-capable, which is fine for ai_tool connections
-      return;
-    }
-
-    // Node is not valid for ai_tool connections
-    result.errors.push({
-      type: 'error',
-      nodeId: sourceNode.id,
-      nodeName: sourceNode.name,
-      message: `Node "${sourceNode.name}" of type "${sourceNode.type}" cannot output ai_tool connections. ` +
-        `Only AI tool nodes (e.g., Calculator, HTTP Request Tool) or Tool variants (e.g., *Tool suffix nodes) can be connected to AI Agents as tools.`,
-      code: 'INVALID_AI_TOOL_SOURCE'
-    });
-  }
-
   /**
    * Check if workflow has cycles
    * Allow legitimate loops for SplitInBatches and similar loop nodes

src/telemetry/batch-processor.ts

@@ -9,34 +9,23 @@ import { TelemetryError, TelemetryErrorType, TelemetryCircuitBreaker } from './t
 import { logger } from '../utils/logger';
 
 /**
- * Convert camelCase key to snake_case
+ * Convert camelCase object keys to snake_case
+ * Needed because Supabase PostgREST doesn't auto-convert
  */
-function keyToSnakeCase(key: string): string {
+function toSnakeCase(obj: any): any {
-  return key.replace(/[A-Z]/g, letter => `_${letter.toLowerCase()}`);
+  if (obj === null || obj === undefined) return obj;
-}
+  if (Array.isArray(obj)) return obj.map(toSnakeCase);
+  if (typeof obj !== 'object') return obj;
 
-/**
+  const result: any = {};
- * Convert WorkflowMutationRecord to Supabase-compatible format.
+  for (const key in obj) {
- *
+    if (obj.hasOwnProperty(key)) {
- * IMPORTANT: Only converts top-level field names to snake_case.
+      // Convert camelCase to snake_case
- * Nested workflow data (workflowBefore, workflowAfter, operations, etc.)
+      const snakeKey = key.replace(/[A-Z]/g, letter => `_${letter.toLowerCase()}`);
- * is preserved EXACTLY as-is to maintain n8n API compatibility.
+      // Recursively convert nested objects
- *
+      result[snakeKey] = toSnakeCase(obj[key]);
- * The Supabase workflow_mutations table stores workflow_before and
+    }
- * workflow_after as JSONB columns, which preserve the original structure.
- * Only the top-level columns (user_id, session_id, etc.) require snake_case.
- *
- * Issue #517: Previously this used recursive conversion which mangled:
- * - Connection keys (node names like "Webhook" → "_webhook")
- * - Node field names (typeVersion → type_version)
- */
-function mutationToSupabaseFormat(mutation: WorkflowMutationRecord): Record<string, any> {
-  const result: Record<string, any> = {};
-
-  for (const [key, value] of Object.entries(mutation)) {
-    result[keyToSnakeCase(key)] = value;
   }
-
   return result;
 }
 
@@ -277,7 +266,7 @@ export class TelemetryBatchProcessor {
       for (const batch of batches) {
         const result = await this.executeWithRetry(async () => {
           // Convert camelCase to snake_case for Supabase
-          const snakeCaseBatch = batch.map(mutation => mutationToSupabaseFormat(mutation));
+          const snakeCaseBatch = batch.map(mutation => toSnakeCase(mutation));
 
           const { error } = await this.supabase!
             .from('workflow_mutations')

src/types/index.ts

@@ -10,23 +10,6 @@ export interface MCPServerConfig {
   authToken?: string;
 }
 
-/**
- * MCP Tool annotations to help AI assistants understand tool behavior.
- * Per MCP spec: https://spec.modelcontextprotocol.io/specification/2025-03-26/server/tools/#annotations
- */
-export interface ToolAnnotations {
-  /** Human-readable title for the tool */
-  title?: string;
-  /** If true, the tool does not modify its environment */
-  readOnlyHint?: boolean;
-  /** If true, the tool may perform destructive updates to its environment */
-  destructiveHint?: boolean;
-  /** If true, calling the tool repeatedly with the same arguments has no additional effect */
-  idempotentHint?: boolean;
-  /** If true, the tool may interact with external entities (APIs, services) */
-  openWorldHint?: boolean;
-}
-
 export interface ToolDefinition {
   name: string;
   description: string;
@@ -42,8 +25,6 @@ export interface ToolDefinition {
     required?: string[];
     additionalProperties?: boolean | Record<string, any>;
   };
-  /** Tool behavior hints for AI assistants */
-  annotations?: ToolAnnotations;
 }
 
 export interface ResourceDefinition {

src/types/n8n-api.ts

@@ -321,7 +321,7 @@ export interface McpToolResponse {
 }
 
 // Execution Filtering Types
-export type ExecutionMode = 'preview' | 'summary' | 'filtered' | 'full' | 'error';
+export type ExecutionMode = 'preview' | 'summary' | 'filtered' | 'full';
 
 export interface ExecutionPreview {
   totalNodes: number;
@@ -354,10 +354,6 @@ export interface ExecutionFilterOptions {
   itemsLimit?: number;
   includeInputData?: boolean;
   fieldsToInclude?: string[];
-  // Error mode specific options
-  errorItemsLimit?: number;       // Sample items from upstream node (default: 2)
-  includeStackTrace?: boolean;    // Include full stack trace (default: false)
-  includeExecutionPath?: boolean; // Include execution path to error (default: true)
 }
 
 export interface FilteredExecutionResponse {
@@ -385,9 +381,6 @@ export interface FilteredExecutionResponse {
 
   // Error information
   error?: Record<string, unknown>;
-
-  // Error mode specific (mode='error')
-  errorInfo?: ErrorAnalysis;
 }
 
 export interface FilteredNodeData {
@@ -405,51 +398,4 @@ export interface FilteredNodeData {
       truncated: boolean;
     };
   };
-}
-
-// Error Mode Types
-export interface ErrorAnalysis {
-  // Primary error information
-  primaryError: {
-    message: string;
-    errorType: string;  // NodeOperationError, NodeApiError, etc.
-    nodeName: string;
-    nodeType: string;
-    nodeId?: string;
-    nodeParameters?: Record<string, unknown>;  // Relevant params only (no secrets)
-    stackTrace?: string;  // Truncated by default
-  };
-
-  // Upstream context (input to error node)
-  upstreamContext?: {
-    nodeName: string;
-    nodeType: string;
-    itemCount: number;
-    sampleItems: unknown[];  // Configurable limit, default 2
-    dataStructure: Record<string, unknown>;
-  };
-
-  // Execution path leading to error (from trigger to error)
-  executionPath?: Array<{
-    nodeName: string;
-    status: 'success' | 'error' | 'skipped';
-    itemCount: number;
-    executionTime?: number;
-  }>;
-
-  // Additional errors (if workflow had multiple failures)
-  additionalErrors?: Array<{
-    nodeName: string;
-    message: string;
-  }>;
-
-  // AI-friendly suggestions
-  suggestions?: ErrorSuggestion[];
-}
-
-export interface ErrorSuggestion {
-  type: 'fix' | 'investigate' | 'workaround';
-  title: string;
-  description: string;
-  confidence: 'high' | 'medium' | 'low';
 }