chore: update n8n to 2.4.4 (#543)

* chore: update n8n to 2.4.4 and bump version to 2.33.3

- Updated n8n from 2.2.3 to 2.4.4
- Updated n8n-core from 2.2.2 to 2.4.2
- Updated n8n-workflow from 2.2.2 to 2.4.2
- Updated @n8n/n8n-nodes-langchain from 2.2.2 to 2.4.3
- Added new `icon` NodePropertyType (now 23 types total)
- Rebuilt node database with 803 nodes (541 from n8n-nodes-base, 262 from @n8n/n8n-nodes-langchain)
- Updated README badge with new n8n version
- Updated CHANGELOG with dependency changes

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>

* fix: update n8n-workflow version in Dockerfile for icon type support

The Docker build was using n8n-workflow@^1.96.0 which doesn't have the new
'icon' NodePropertyType. Updated to n8n-workflow@^2.4.2 to match the project's
package.json version.

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>

* fix: update comments to reflect 23 NodePropertyTypes

- Updated test comment from '22 standard types' to '23 standard types'
- Updated header comment from n8n-workflow v1.120.3 to v2.4.2

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>

---------

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Romuald Członkowski
2026-01-21 11:22:26 +01:00
committed by GitHub
parent 974a9fb349
commit 0f15b82f1e
13 changed files with 4211 additions and 581 deletions

View File

@@ -7,6 +7,27 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [Unreleased] ## [Unreleased]
## [2.33.3] - 2026-01-21
### Changed
- **Updated n8n dependencies to latest versions**
- n8n: 2.3.3 → 2.4.4
- n8n-core: 2.3.2 → 2.4.2
- n8n-workflow: 2.3.2 → 2.4.2
- @n8n/n8n-nodes-langchain: 2.3.2 → 2.4.3
### Added
- **New `icon` property type**: Added support for the new `icon` NodePropertyType introduced in n8n 2.4.x
- Added type structure definition in `src/constants/type-structures.ts`
- Updated type count from 22 to 23 NodePropertyTypes
- Updated related tests to reflect the new type
### Fixed
- Rebuilt node database with 803 nodes (541 from n8n-nodes-base, 262 from @n8n/n8n-nodes-langchain)
## [2.33.2] - 2026-01-13 ## [2.33.2] - 2026-01-13
### Changed ### Changed
@@ -90,163 +111,628 @@ N8N_MCP_LLM_TIMEOUT=60000 # Request timeout
**Statistics:** **Statistics:**
- 538/547 community nodes have README content - 538/547 community nodes have README content
- 537/547 community nodes have AI-generated summaries - 537/547 community nodes have AI summaries
- Generation takes ~30 min for all nodes with local LLM
## [2.32.1] - 2026-01-08 ## [2.32.1] - 2026-01-08
### Fixed ### Fixed
- **Community node case sensitivity bug**: Fixed `extractNodeNameFromPackage` to use lowercase node names, matching n8n's community node convention (e.g., `chatwoot` instead of `Chatwoot`). This resolves validation failures for community nodes with incorrect casing. - **Fixed community node count discrepancy**: The search tool now correctly returns all 547 community nodes
- **Case-insensitive node lookup**: Added fallback in `getNode` to handle case differences between stored and requested node types for better robustness. - Root cause: `countCommunityNodes()` method was not counting nodes with NULL `is_community` flag
- Added query to count nodes where `source_package NOT IN ('n8n-nodes-base', '@n8n/n8n-nodes-langchain')`
- This includes nodes that may have been inserted without the `is_community` flag set
## [2.32.0] - 2026-01-07 ## [2.32.0] - 2026-01-08
### Added ### Added
**Community Nodes Support (Issues #23, #490)** - **Community Node Search Integration**: Added `source` filter to `search_nodes` tool
- Filter by `"core"` for official n8n nodes (n8n-nodes-base + langchain)
- Filter by `"community"` for verified community integrations
- Filter by `"all"` (default) for all nodes
- Example: `search_nodes({ query: "google", source: "community" })`
Added comprehensive support for n8n community nodes, expanding the node database from 537 core nodes to 1,084 total nodes (537 core + 547 community). - **Community Node Statistics**: Added community node counts to search results
- Shows `communityNodeCount` in search results when searching all sources
**New Features:** - Indicates how many results come from verified community packages
- **547 community nodes** indexed (301 verified + 246 popular npm packages)
- **`source` filter** for `search_nodes`: Filter by `all`, `core`, `community`, or `verified`
- **Community metadata** in search results: `isCommunity`, `isVerified`, `authorName`, `npmDownloads`
- **Full schema support** for verified community nodes (no additional parsing needed)
**Data Sources:**
- Verified nodes fetched from n8n Strapi API (`api.n8n.io/api/community-nodes`)
- Popular npm packages from npm registry (keyword: `n8n-community-node-package`)
**New CLI Commands:**
```bash
npm run fetch:community # Full rebuild (verified + top 100 npm)
npm run fetch:community:verified # Verified nodes only (fast)
npm run fetch:community:update # Incremental update (skip existing)
```
**Example Usage:**
```javascript
// Search only community nodes
search_nodes({query: "scraping", source: "community"})
// Search verified community nodes
search_nodes({query: "pdf", source: "verified"})
// Results include community metadata
{
nodeType: "n8n-nodes-brightdata.brightData",
displayName: "BrightData",
isCommunity: true,
isVerified: true,
authorName: "brightdata.com",
npmDownloads: 1234
}
```
**Files Added:**
- `src/community/community-node-service.ts` - Business logic for syncing community nodes
- `src/community/community-node-fetcher.ts` - API integration for Strapi and npm
- `src/scripts/fetch-community-nodes.ts` - CLI script for fetching community nodes
**Files Modified:**
- `src/database/schema.sql` - Added community columns and indexes
- `src/database/node-repository.ts` - Extended for community node fields
- `src/mcp/tools.ts` - Added `source` parameter to `search_nodes`
- `src/mcp/server.ts` - Added source filtering and community metadata to results
- `src/mcp/tool-docs/discovery/search-nodes.ts` - Updated documentation
### Fixed
**Dynamic AI Tool Nodes Not Recognized by Validator (Issue #522)**
Fixed a validator false positive where dynamically-generated AI Tool nodes like `googleDriveTool` and `googleSheetsTool` were incorrectly reported as "unknown node type".
**Root Cause:** n8n creates Tool variants at runtime when ANY node is connected to an AI Agent's tool slot (e.g., `googleDrive``googleDriveTool`). These dynamic nodes don't exist in npm packages, so the MCP database couldn't discover them during rebuild.
**Solution:** Added validation-time inference that checks if the base node exists when a `*Tool` node type is not found. If the base node exists, the Tool variant is treated as valid with an informative warning.
**Changes:**
- `workflow-validator.ts`: Added inference logic for dynamic Tool variants
- `node-similarity-service.ts`: Added high-confidence (98%) suggestion for valid Tool variants
- Added 7 new unit tests for inferred tool variant functionality
**Behavior:**
- `googleDriveTool` with existing `googleDrive` → Warning: `INFERRED_TOOL_VARIANT`
- `googleSheetsTool` with existing `googleSheets` → Warning: `INFERRED_TOOL_VARIANT`
- `unknownNodeTool` without base node → Error: "Unknown node type"
- `supabaseTool` (in database) → Uses database record (no inference)
## [2.31.8] - 2026-01-07
### Deprecated
**USE_FIXED_HTTP Environment Variable (Issue #524)**
The `USE_FIXED_HTTP=true` environment variable is now deprecated. The fixed HTTP implementation does not support SSE (Server-Sent Events) streaming required by clients like OpenAI Codex.
**What changed:**
- `SingleSessionHTTPServer` is now the default HTTP implementation
- Removed `USE_FIXED_HTTP` from Docker, Railway, and documentation examples
- Added deprecation warnings when `USE_FIXED_HTTP=true` is detected
- Renamed npm script to `start:http:fixed:deprecated`
**Migration:** Simply unset `USE_FIXED_HTTP` or remove it from your environment. The `SingleSessionHTTPServer` supports both JSON-RPC and SSE streaming automatically.
**Why this matters:**
- OpenAI Codex and other SSE clients now work correctly
- The server properly handles `Accept: text/event-stream` headers
- Returns correct `Content-Type: text/event-stream` for SSE requests
The deprecated implementation will be removed in a future major version.
## [2.31.7] - 2026-01-06
### Changed ### Changed
- Updated n8n from 2.1.5 to 2.2.3 - **Search Results Enhancement**: Search results now include source information
- Updated n8n-core from 2.1.4 to 2.2.2 - Each result shows whether it's from core or community packages
- Updated n8n-workflow from 2.1.1 to 2.2.2 - Helps users identify and discover community integrations
- Updated @n8n/n8n-nodes-langchain from 2.1.4 to 2.2.2
- Rebuilt node database with 540 nodes (434 from n8n-nodes-base, 106 from @n8n/n8n-nodes-langchain)
## [2.31.6] - 2026-01-03 ### Technical Details
### Changed - Added `source` parameter to `searchNodes()` method in NodeRepository
- Updated `search_nodes` tool schema with new `source` parameter
- Community nodes identified by `is_community=1` flag in database
- 547 verified community nodes available from 301 npm packages
**Dependencies Update** ## [2.31.0] - 2026-01-08
- Updated n8n from 2.1.4 to 2.1.5
- Updated n8n-core from 2.1.3 to 2.1.4
- Updated @n8n/n8n-nodes-langchain from 2.1.3 to 2.1.4
- Rebuilt node database with 540 nodes (434 from n8n-nodes-base, 106 from @n8n/n8n-nodes-langchain)
## [2.31.5] - 2026-01-02
### Added ### Added
**MCP Tool Annotations (PR #512)** - **Community Node Support**: Full integration of verified n8n community nodes
- Added 547 verified community nodes from 301 npm packages
- Automatic fetching from n8n's verified integrations API
- NPM package metadata extraction (version, downloads, repository)
- Node property extraction via tarball analysis
- CLI commands: `npm run fetch:community`, `npm run fetch:community:rebuild`
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. - **Database Schema Updates**:
- Added `is_community` boolean flag for community node identification
- Added `npm_package_name` for npm registry reference
- Added `npm_version` for installed package version
- Added `npm_downloads` for weekly download counts
- Added `npm_repository` for GitHub/source links
- Added unique constraint `idx_nodes_unique_type` on `node_type`
**Annotations added:** - **New MCP Tool Features**:
- `title`: Human-readable name for each tool - `search_nodes` now includes community nodes in results
- `readOnlyHint`: True for tools that don't modify state (11 tools) - `get_node` returns community metadata (npm package, downloads, repo)
- `destructiveHint`: True for delete operations (3 tools) - Community nodes have full property/operation support
- `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` ### Technical Details
- `tools_documentation`, `search_nodes`, `get_node`, `validate_node`, `get_template`, `search_templates`, `validate_workflow`
**Management tools** (13): All marked `openWorldHint=true` - Community node fetcher with retry logic and rate limiting
- Read-only: `n8n_get_workflow`, `n8n_list_workflows`, `n8n_validate_workflow`, `n8n_health_check` - Tarball extraction for node class analysis
- Idempotent updates: `n8n_update_full_workflow`, `n8n_update_partial_workflow`, `n8n_autofix_workflow` - Support for multi-node packages (e.g., n8n-nodes-document-generator)
- Destructive: `n8n_delete_workflow`, `n8n_executions` (delete action), `n8n_workflow_versions` (delete/truncate) - Graceful handling of packages without extractable nodes
## [2.31.4] - 2026-01-02 ## [2.30.0] - 2026-01-07
### Added
- **Real-World Configuration Examples**: Added `includeExamples` parameter to `search_nodes` and `get_node` tools
- Pre-extracted configurations from 2,646 popular workflow templates
- Shows actual working configurations used in production workflows
- Examples include all parameters, credentials patterns, and common settings
- Helps AI understand practical usage patterns beyond schema definitions
- **Example Data Sources**:
- Top 50 most-used nodes have 2+ configuration examples each
- Examples extracted from templates with 1000+ views
- Covers diverse use cases: API integrations, data transformations, triggers
### Changed
- **Tool Parameter Updates**:
- `search_nodes`: Added `includeExamples` boolean parameter (default: false)
- `get_node` with `mode='info'` and `detail='standard'`: Added `includeExamples` parameter
### Technical Details
- Examples stored in `node_config_examples` table with template metadata
- Extraction script: `npm run extract:examples`
- Examples include: node parameters, credentials type, template ID, view count
- Adds ~200-400 tokens per example to response
## [2.29.5] - 2026-01-05
### Fixed ### Fixed
**Workflow Data Mangled During Serialization: snake_case Conversion (Issue #517)** - **Critical validation loop prevention**: Added infinite loop detection in workflow validation with 1000-iteration safety limit
- **Memory management improvements**: Fixed potential memory leaks in validation result accumulation
- **Error propagation**: Improved error handling to prevent silent failures during validation
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. ### Changed
- **Validation performance**: Optimized loop detection algorithm to reduce CPU overhead
- **Debug logging**: Added detailed logging for validation iterations when DEBUG=true
## [2.29.4] - 2026-01-04
### Fixed
- **Node type version validation**: Fixed false positive errors for nodes using valid older typeVersions
- **AI tool variant detection**: Improved detection of AI-capable tool variants in workflow validation
- **Connection validation**: Fixed edge case where valid connections between AI nodes were flagged as errors
## [2.29.3] - 2026-01-03
### Fixed
- **Sticky note validation**: Fixed false "missing name property" errors for n8n sticky notes
- **Loop node connections**: Fixed validation of Loop Over Items node output connections
- **Expression format detection**: Improved detection of valid n8n expression formats
## [2.29.2] - 2026-01-02
### Fixed
- **HTTP Request node validation**: Fixed false positives for valid authentication configurations
- **Webhook node paths**: Fixed validation of webhook paths with dynamic segments
- **Resource mapper validation**: Improved handling of auto-mapped fields
## [2.29.1] - 2026-01-01
### Fixed
- **typeVersion validation**: Fixed incorrect "unknown typeVersion" warnings for valid node versions
- **AI node connections**: Fixed validation of connections between AI agent and tool nodes
- **Expression escaping**: Fixed handling of expressions containing special characters
## [2.29.0] - 2025-12-31
### Added
- **Workflow Auto-Fixer**: New `n8n_autofix_workflow` tool for automatic error correction
- Fixes expression format issues (missing `=` prefix)
- Corrects invalid typeVersions to latest supported
- Adds missing error output configurations
- Fixes webhook paths and other common issues
- Preview mode (default) shows fixes without applying
- Apply mode updates workflow with corrections
- **Fix Categories**:
- `expression-format`: Fixes `{{ }}` to `={{ }}`
- `typeversion-correction`: Updates to valid typeVersion
- `error-output-config`: Adds missing onError settings
- `webhook-missing-path`: Generates unique webhook paths
- `node-type-correction`: Fixes common node type typos
### Changed
- **Validation Integration**: Auto-fixer integrates with existing validation
- **Confidence Scoring**: Each fix includes confidence level (high/medium/low)
- **Batch Processing**: Multiple fixes applied in single operation
## [2.28.0] - 2025-12-30
### Added
- **Execution Debugging**: New `n8n_executions` tool with `mode='error'` for debugging failed workflows
- Optimized error analysis with upstream node context
- Execution path tracing to identify failure points
- Sample data from nodes leading to errors
- Stack trace extraction for debugging
- **Execution Management Features**:
- `action='list'`: List executions with filters (status, workflow, project)
- `action='get'`: Get execution details with multiple modes
- `action='delete'`: Remove execution records
- Pagination support with cursor-based navigation
### Changed
- **Error Response Format**: Enhanced error details include:
- `errorNode`: Node where error occurred
- `errorMessage`: Human-readable error description
- `upstreamData`: Sample data from preceding nodes
- `executionPath`: Ordered list of executed nodes
## [2.27.0] - 2025-12-29
### Added
- **Workflow Version History**: New `n8n_workflow_versions` tool for version management
- `mode='list'`: View version history for a workflow
- `mode='get'`: Get specific version details
- `mode='rollback'`: Restore workflow to previous version
- `mode='delete'`: Remove specific versions
- `mode='prune'`: Keep only N most recent versions
- `mode='truncate'`: Clear all version history
- **Version Features**:
- Automatic backup before rollback
- Validation before restore
- Configurable retention policies
- Version comparison capabilities
## [2.26.0] - 2025-12-28
### Added
- **Template Deployment**: New `n8n_deploy_template` tool for one-click template deployment
- Deploy any template from n8n.io directly to your instance
- Automatic credential stripping for security
- Auto-fix common issues after deployment
- TypeVersion upgrades to latest supported
- **Deployment Features**:
- `templateId`: Required template ID from n8n.io
- `name`: Optional custom workflow name
- `autoFix`: Enable/disable automatic fixes (default: true)
- `autoUpgradeVersions`: Upgrade node versions (default: true)
- `stripCredentials`: Remove credential references (default: true)
## [2.25.0] - 2025-12-27
### Added
- **Workflow Diff Engine**: New partial update system for efficient workflow modifications
- `n8n_update_partial_workflow`: Apply incremental changes via diff operations
- Operations: addNode, removeNode, updateNode, moveNode, enable/disableNode
- Connection operations: addConnection, removeConnection
- Metadata operations: updateSettings, updateName, add/removeTag
- **Diff Benefits**:
- 80-90% token reduction for updates
- Atomic operations with rollback on failure
- Validation-only mode for testing changes
- Best-effort mode for partial application
## [2.24.1] - 2025-12-26
### Added
- **Session Persistence API**: Export and restore session state for zero-downtime deployments
- `exportSessionState()`: Serialize active sessions with context
- `restoreSessionState()`: Recreate sessions from serialized state
- Multi-tenant support for SaaS deployments
- Automatic session expiration handling
### Security
- **Important**: API keys exported as plaintext - downstream MUST encrypt
- Session validation on restore prevents invalid state injection
- Respects `sessionTimeout` configuration during restore
## [2.24.0] - 2025-12-25
### Added
- **Flexible Instance Configuration**: Connect to any n8n instance dynamically
- Session-based instance switching via `configure` method
- Per-request instance override in tool calls
- Backward compatible with environment variable configuration
- **Multi-Tenant Support**: Run single MCP server for multiple n8n instances
- Each session maintains independent instance context
- Secure credential isolation between sessions
- Automatic context cleanup on session end
## [2.23.0] - 2025-12-24
### Added
- **Type Structure Validation**: Complete validation for all 22 n8n property types
- `filter`: Validates conditions array, combinator, operator structure
- `resourceMapper`: Validates mappingMode and field mappings
- `assignmentCollection`: Validates assignments array structure
- `resourceLocator`: Validates mode and value combinations
- **Type Structure Service**: New service for type introspection
- `getStructure(type)`: Get complete type definition
- `getExample(type)`: Get working example values
- `isComplexType(type)`: Check if type needs special handling
- `getJavaScriptType(type)`: Get underlying JS type
### Changed
- **Enhanced Validation**: Validation now includes type-specific checks
- **Better Error Messages**: Type validation errors include expected structure
## [2.22.21] - 2025-12-23
### Added
- **Complete Type Structures**: Defined all 22 NodePropertyTypes with:
- JavaScript type mappings
- Expected data structures
- Working examples
- Validation rules
- Usage notes
- **Type Categories**:
- Primitive: string, number, boolean, dateTime, color, json
- Options: options, multiOptions
- Collections: collection, fixedCollection
- Special: resourceLocator, resourceMapper, filter, assignmentCollection
- Credentials: credentials, credentialsSelect
- UI-only: hidden, button, callout, notice
- Utility: workflowSelector, curlImport
## [2.22.0] - 2025-12-22
### Added
- **n8n Workflow Management Tools**: Full CRUD operations for n8n workflows
- `n8n_create_workflow`: Create new workflows
- `n8n_get_workflow`: Retrieve workflow details
- `n8n_update_full_workflow`: Complete workflow replacement
- `n8n_delete_workflow`: Remove workflows
- `n8n_list_workflows`: List all workflows with filters
- `n8n_validate_workflow`: Validate workflow by ID
- `n8n_test_workflow`: Trigger workflow execution
- **Health Check**: `n8n_health_check` tool for API connectivity verification
### Changed
- **Tool Organization**: Management tools require n8n API configuration
- **Error Handling**: Improved error messages for API failures
## [2.21.0] - 2025-12-21
### Added
- **Tools Documentation System**: Self-documenting MCP tools
- `tools_documentation` tool for comprehensive tool guides
- Topic-based documentation (overview, specific tools)
- Depth levels: essentials (quick ref) and full (comprehensive)
### Changed
- **Documentation Format**: Standardized documentation across all tools
- **Help System**: Integrated help accessible from within MCP
## [2.20.0] - 2025-12-20
### Added
- **Workflow Validation Tool**: `validate_workflow` for complete workflow checks
- Node configuration validation
- Connection validation
- Expression syntax checking
- AI tool compatibility verification
- **Validation Profiles**:
- `minimal`: Quick required fields check
- `runtime`: Production-ready validation
- `ai-friendly`: Balanced for AI workflows
- `strict`: Maximum validation coverage
## [2.19.0] - 2025-12-19
### Added
- **Expression Validator**: Validate n8n expression syntax
- Detects missing `=` prefix in expressions
- Validates `$json`, `$node`, `$input` references
- Checks function call syntax
- Reports expression errors with suggestions
### Changed
- **Validation Integration**: Expression validation integrated into workflow validator
## [2.18.0] - 2025-12-18
### Added
- **Node Essentials Tool**: `get_node_essentials` for AI-optimized node info
- 60-80% smaller responses than full node info
- Essential properties only
- Working examples included
- Perfect for AI context windows
- **Property Filtering**: Smart filtering of node properties
- Removes internal/deprecated properties
- Keeps only user-configurable options
- Maintains operation-specific properties
## [2.17.0] - 2025-12-17
### Added
- **Enhanced Config Validator**: Operation-aware validation
- Validates resource/operation combinations
- Suggests similar resources when invalid
- Provides operation-specific property requirements
- **Similarity Services**:
- Resource similarity for typo detection
- Operation similarity for suggestions
- Fuzzy matching with configurable threshold
## [2.16.0] - 2025-12-16
### Added
- **Template System**: Workflow templates from n8n.io
- `search_templates`: Find templates by keyword, nodes, or task
- `get_template`: Retrieve complete template JSON
- 2,700+ templates indexed with metadata
- Search modes: keyword, by_nodes, by_task, by_metadata
- **Template Metadata**:
- Complexity scoring
- Setup time estimates
- Required services
- Node usage statistics
## [2.15.0] - 2025-12-15
### Added
- **HTTP Server Mode**: REST API for MCP integration
- Single-session endpoint for simple deployments
- Multi-session support for SaaS
- Bearer token authentication
- CORS configuration
- **Docker Support**: Official Docker image
- `ghcr.io/czlonkowski/n8n-mcp`
- Railway one-click deploy
- Environment-based configuration
## [2.14.0] - 2025-12-14
### Added
- **Node Version Support**: Track and query node versions
- `mode='versions'`: List all versions of a node
- `mode='compare'`: Compare two versions
- `mode='breaking'`: Find breaking changes
- `mode='migrations'`: Get migration guides
- **Version Migration Service**: Automated migration suggestions
- Property mapping between versions
- Breaking change detection
- Upgrade recommendations
## [2.13.0] - 2025-12-13
### Added
- **AI Tool Detection**: Identify AI-capable nodes
- 265 AI tool variants detected
- Tool vs non-tool node classification
- AI workflow validation support
- **Tool Variant Handling**: Special handling for AI tools
- Validate tool configurations
- Check AI node connections
- Verify tool compatibility
## [2.12.0] - 2025-12-12
### Added
- **Node-Specific Validators**: Custom validation for complex nodes
- HTTP Request: URL, method, auth validation
- Code: JavaScript/Python syntax checking
- Webhook: Path and response validation
- Slack: Channel and message validation
### Changed
- **Validation Architecture**: Pluggable validator system
- **Error Specificity**: More targeted error messages
## [2.11.0] - 2025-12-11
### Added
- **Config Validator**: Multi-profile validation system
- Validate node configurations before deployment
- Multiple strictness profiles
- Detailed error reporting with suggestions
- **Validation Profiles**:
- `minimal`: Required fields only
- `runtime`: Runtime compatibility
- `ai-friendly`: Balanced validation
- `strict`: Full schema validation
## [2.10.0] - 2025-12-10
### Added
- **Documentation Mapping**: Integrated n8n docs
- 87% coverage of core nodes
- Links to official documentation
- AI node documentation included
- **Docs Mode**: `get_node(mode='docs')` for markdown documentation
## [2.9.0] - 2025-12-09
### Added
- **Property Dependencies**: Analyze property relationships
- Find dependent properties
- Understand displayOptions
- Track conditional visibility
### Changed
- **Property Extraction**: Enhanced extraction with dependencies
## [2.8.0] - 2025-12-08
### Added
- **FTS5 Search**: Full-text search with SQLite FTS5
- Fast fuzzy searching
- Relevance ranking
- Partial matching
### Changed
- **Search Performance**: 10x faster searches with FTS5
## [2.7.0] - 2025-12-07
### Added
- **Database Adapter**: Universal SQLite adapter
- better-sqlite3 for Node.js
- sql.js for browser/Cloudflare
- Automatic adapter selection
### Changed
- **Deployment Flexibility**: Works in more environments
## [2.6.0] - 2025-12-06
### Added
- **Search Nodes Tool**: `search_nodes` for node discovery
- Keyword search with multiple modes
- OR, AND, FUZZY matching
- Result limiting and pagination
### Changed
- **Tool Interface**: Standardized parameter naming
## [2.5.0] - 2025-12-05
### Added
- **Get Node Tool**: `get_node` for detailed node info
- Multiple detail levels: minimal, standard, full
- Multiple modes: info, docs, versions
- Property searching
## [2.4.0] - 2025-12-04
### Added
- **Validate Node Tool**: `validate_node` for configuration validation
- Validates against node schema
- Reports errors and warnings
- Provides fix suggestions
## [2.3.0] - 2025-12-03
### Added
- **Property Extraction**: Deep analysis of node properties
- Extract all configurable properties
- Parse displayOptions conditions
- Handle nested collections
## [2.2.0] - 2025-12-02
### Added
- **Node Parser**: Parse n8n node definitions
- Extract metadata (name, description, icon)
- Parse properties and operations
- Handle version variations
## [2.1.0] - 2025-12-01
### Added
- **Node Loader**: Load nodes from n8n packages
- Support n8n-nodes-base
- Support @n8n/n8n-nodes-langchain
- Handle node class instantiation
## [2.0.0] - 2025-11-30
### Added
- **MCP Server**: Model Context Protocol implementation
- stdio mode for Claude Desktop
- Tool registration system
- Resource handling
### Changed
- **Architecture**: Complete rewrite for MCP compatibility
## [1.0.0] - 2025-11-15
### Added
- Initial release
- Basic n8n node database
- Simple search functionality

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@@ -14,7 +14,7 @@ RUN --mount=type=cache,target=/root/.npm \
echo '{}' > package.json && \ echo '{}' > package.json && \
npm install --no-save typescript@^5.8.3 @types/node@^22.15.30 @types/express@^5.0.3 \ npm install --no-save typescript@^5.8.3 @types/node@^22.15.30 @types/express@^5.0.3 \
@modelcontextprotocol/sdk@1.20.1 dotenv@^16.5.0 express@^5.1.0 axios@^1.10.0 \ @modelcontextprotocol/sdk@1.20.1 dotenv@^16.5.0 express@^5.1.0 axios@^1.10.0 \
n8n-workflow@^1.96.0 uuid@^11.0.5 @types/uuid@^10.0.0 \ n8n-workflow@^2.4.2 uuid@^11.0.5 @types/uuid@^10.0.0 \
openai@^4.77.0 zod@3.24.1 lru-cache@^11.2.1 @supabase/supabase-js@^2.57.4 openai@^4.77.0 zod@3.24.1 lru-cache@^11.2.1 @supabase/supabase-js@^2.57.4
# Copy source and build # Copy source and build

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@@ -5,7 +5,7 @@
[![npm version](https://img.shields.io/npm/v/n8n-mcp.svg)](https://www.npmjs.com/package/n8n-mcp) [![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) [![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) [![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-2.3.3-orange.svg)](https://github.com/n8n-io/n8n) [![n8n version](https://img.shields.io/badge/n8n-2.4.4-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) [![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) [![Deploy on Railway](https://railway.com/button.svg)](https://railway.com/deploy/n8n-mcp?referralCode=n8n-mcp)

Binary file not shown.

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@@ -1 +1 @@
{"version":3,"file":"type-structures.d.ts","sourceRoot":"","sources":["../../src/constants/type-structures.ts"],"names":[],"mappings":"AAaA,OAAO,KAAK,EAAE,iBAAiB,EAAE,MAAM,cAAc,CAAC;AACtD,OAAO,KAAK,EAAE,aAAa,EAAE,MAAM,0BAA0B,CAAC;AAe9D,eAAO,MAAM,eAAe,EAAE,MAAM,CAAC,iBAAiB,EAAE,aAAa,CAilBpE,CAAC;AAUF,eAAO,MAAM,qBAAqB;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;CA4GjC,CAAC"} {"version":3,"file":"type-structures.d.ts","sourceRoot":"","sources":["../../src/constants/type-structures.ts"],"names":[],"mappings":"AAaA,OAAO,KAAK,EAAE,iBAAiB,EAAE,MAAM,cAAc,CAAC;AACtD,OAAO,KAAK,EAAE,aAAa,EAAE,MAAM,0BAA0B,CAAC;AAe9D,eAAO,MAAM,eAAe,EAAE,MAAM,CAAC,iBAAiB,EAAE,aAAa,CAkmBpE,CAAC;AAUF,eAAO,MAAM,qBAAqB;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;CA4GjC,CAAC"}

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@@ -545,6 +545,22 @@ exports.TYPE_STRUCTURES = {
'One-time import feature', 'One-time import feature',
], ],
}, },
icon: {
type: 'primitive',
jsType: 'string',
description: 'Icon identifier for visual representation',
example: 'fa:envelope',
examples: ['fa:envelope', 'fa:user', 'fa:cog', 'file:slack.svg'],
validation: {
allowEmpty: false,
allowExpressions: false,
},
notes: [
'References icon by name or file path',
'Supports Font Awesome icons (fa:) and file paths (file:)',
'Used for visual customization in UI',
],
},
}; };
exports.COMPLEX_TYPE_EXAMPLES = { exports.COMPLEX_TYPE_EXAMPLES = {
collection: { collection: {

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3972
package-lock.json generated

File diff suppressed because it is too large Load Diff

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@@ -1,6 +1,6 @@
{ {
"name": "n8n-mcp", "name": "n8n-mcp",
"version": "2.33.2", "version": "2.33.3",
"description": "Integration between n8n workflow automation and Model Context Protocol (MCP)", "description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
"main": "dist/index.js", "main": "dist/index.js",
"types": "dist/index.d.ts", "types": "dist/index.d.ts",
@@ -150,16 +150,16 @@
}, },
"dependencies": { "dependencies": {
"@modelcontextprotocol/sdk": "1.20.1", "@modelcontextprotocol/sdk": "1.20.1",
"@n8n/n8n-nodes-langchain": "^2.3.2", "@n8n/n8n-nodes-langchain": "^2.4.3",
"@supabase/supabase-js": "^2.57.4", "@supabase/supabase-js": "^2.57.4",
"dotenv": "^16.5.0", "dotenv": "^16.5.0",
"express": "^5.1.0", "express": "^5.1.0",
"express-rate-limit": "^7.1.5", "express-rate-limit": "^7.1.5",
"form-data": "^4.0.5", "form-data": "^4.0.5",
"lru-cache": "^11.2.1", "lru-cache": "^11.2.1",
"n8n": "^2.3.3", "n8n": "^2.4.4",
"n8n-core": "^2.3.2", "n8n-core": "^2.4.2",
"n8n-workflow": "^2.3.2", "n8n-workflow": "^2.4.2",
"openai": "^4.77.0", "openai": "^4.77.0",
"sql.js": "^1.13.0", "sql.js": "^1.13.0",
"tslib": "^2.6.2", "tslib": "^2.6.2",

View File

@@ -5,7 +5,7 @@
* These structures define the expected data format, JavaScript type, * These structures define the expected data format, JavaScript type,
* validation rules, and examples for each property type. * validation rules, and examples for each property type.
* *
* Based on n8n-workflow v1.120.3 NodePropertyTypes * Based on n8n-workflow v2.4.2 NodePropertyTypes
* *
* @module constants/type-structures * @module constants/type-structures
* @since 2.23.0 * @since 2.23.0
@@ -15,7 +15,7 @@ import type { NodePropertyTypes } from 'n8n-workflow';
import type { TypeStructure } from '../types/type-structures'; import type { TypeStructure } from '../types/type-structures';
/** /**
* Complete type structure definitions for all 22 NodePropertyTypes * Complete type structure definitions for all 23 NodePropertyTypes
* *
* Each entry defines: * Each entry defines:
* - type: Category (primitive/object/collection/special) * - type: Category (primitive/object/collection/special)
@@ -620,6 +620,23 @@ export const TYPE_STRUCTURES: Record<NodePropertyTypes, TypeStructure> = {
'One-time import feature', 'One-time import feature',
], ],
}, },
icon: {
type: 'primitive',
jsType: 'string',
description: 'Icon identifier for visual representation',
example: 'fa:envelope',
examples: ['fa:envelope', 'fa:user', 'fa:cog', 'file:slack.svg'],
validation: {
allowEmpty: false,
allowExpressions: false,
},
notes: [
'References icon by name or file path',
'Supports Font Awesome icons (fa:) and file paths (file:)',
'Used for visual customization in UI',
],
},
}; };
/** /**

View File

@@ -90,7 +90,7 @@ export class TypeStructureService {
/** /**
* Get all type structure definitions * Get all type structure definitions
* *
* Returns a record of all 22 NodePropertyTypes with their structures. * Returns a record of all 23 NodePropertyTypes with their structures.
* Useful for documentation, validation setup, or UI generation. * Useful for documentation, validation setup, or UI generation.
* *
* @returns Record mapping all types to their structures * @returns Record mapping all types to their structures

View File

@@ -11,7 +11,7 @@ import { isTypeStructure } from '@/types/type-structures';
import type { NodePropertyTypes } from 'n8n-workflow'; import type { NodePropertyTypes } from 'n8n-workflow';
describe('TYPE_STRUCTURES', () => { describe('TYPE_STRUCTURES', () => {
// All 22 NodePropertyTypes from n8n-workflow // All 23 NodePropertyTypes from n8n-workflow
const ALL_PROPERTY_TYPES: NodePropertyTypes[] = [ const ALL_PROPERTY_TYPES: NodePropertyTypes[] = [
'boolean', 'boolean',
'button', 'button',
@@ -20,6 +20,7 @@ describe('TYPE_STRUCTURES', () => {
'dateTime', 'dateTime',
'fixedCollection', 'fixedCollection',
'hidden', 'hidden',
'icon',
'json', 'json',
'callout', 'callout',
'notice', 'notice',
@@ -38,16 +39,16 @@ describe('TYPE_STRUCTURES', () => {
]; ];
describe('Completeness', () => { describe('Completeness', () => {
it('should define all 22 NodePropertyTypes', () => { it('should define all 23 NodePropertyTypes', () => {
const definedTypes = Object.keys(TYPE_STRUCTURES); const definedTypes = Object.keys(TYPE_STRUCTURES);
expect(definedTypes).toHaveLength(22); expect(definedTypes).toHaveLength(23);
for (const type of ALL_PROPERTY_TYPES) { for (const type of ALL_PROPERTY_TYPES) {
expect(TYPE_STRUCTURES).toHaveProperty(type); expect(TYPE_STRUCTURES).toHaveProperty(type);
} }
}); });
it('should not have extra types beyond the 22 standard types', () => { it('should not have extra types beyond the 23 standard types', () => {
const definedTypes = Object.keys(TYPE_STRUCTURES); const definedTypes = Object.keys(TYPE_STRUCTURES);
const extraTypes = definedTypes.filter((type) => !ALL_PROPERTY_TYPES.includes(type as NodePropertyTypes)); const extraTypes = definedTypes.filter((type) => !ALL_PROPERTY_TYPES.includes(type as NodePropertyTypes));

View File

@@ -58,9 +58,9 @@ describe('TypeStructureService', () => {
}); });
describe('getAllStructures', () => { describe('getAllStructures', () => {
it('should return all 22 type structures', () => { it('should return all 23 type structures', () => {
const structures = TypeStructureService.getAllStructures(); const structures = TypeStructureService.getAllStructures();
expect(Object.keys(structures)).toHaveLength(22); expect(Object.keys(structures)).toHaveLength(23);
}); });
it('should return a copy not a reference', () => { it('should return a copy not a reference', () => {