ros/n8n-mcp
1
0
Fork 0
mirror of https://github.com/czlonkowski/n8n-mcp.git synced 2026-02-07 05:53:07 +00:00
Code Issues Packages Projects Releases Wiki Activity
902 Commits 51 Branches 142 Tags
68148804105efa21b592242a9e5f61f52c55c778
Commit Graph

3 Commits

Author SHA1 Message Date
Romuald Członkowski
ff69e4ccca feat: Tool Consolidation - Reduce MCP Tools by 38% (v2.26.0) (#439) 
* feat: Remove 9 low-value tools and consolidate n8n_health_check (v2.25.0)

Telemetry-driven tool cleanup to improve API clarity:

**Removed Tools (9):**
- list_nodes - Use search_nodes instead
- list_ai_tools - Use search_nodes with isAITool filter
- list_tasks - Low usage (0.02%)
- get_database_statistics - Use n8n_health_check
- list_templates - Use search_templates or get_templates_for_task
- get_node_as_tool_info - Documented in get_node
- validate_workflow_connections - Use validate_workflow
- validate_workflow_expressions - Use validate_workflow
- n8n_list_available_tools - Use n8n_health_check
- n8n_diagnostic - Merged into n8n_health_check

**Consolidated Tool:**
- n8n_health_check now supports mode='diagnostic' for detailed troubleshooting

**Tool Count:**
- Before: 38 tools
- After: 31 tools (18% reduction)

Concieved by Romuald Członkowski - www.aiadvisors.pl/en

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

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

* fix: cleanup stale references and update tests after tool removal

- Remove handleListAvailableTools dead code from handlers-n8n-manager.ts
- Update error messages to reference n8n_health_check(mode="diagnostic") instead of n8n_diagnostic
- Update tool counts in diagnostic messages (14 doc tools, 31 total)
- Fix error-handling.test.ts to use valid tools (search_nodes, tools_documentation)
- Remove obsolete list-tools.test.ts integration tests
- Remove unused ListToolsResponse type from response-types.ts
- Update tools.ts QUICK REFERENCE to remove list_nodes references
- Update tools-documentation.ts to remove references to removed tools
- Update tool-docs files to remove stale relatedTools references
- Fix tools.test.ts to not test removed tools (list_nodes, list_ai_tools, etc.)
- Fix parameter-validation.test.ts to not test removed tools
- Update handlers-n8n-manager.test.ts error message expectations

All 399 MCP unit tests now pass.

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

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

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

* fix: update integration tests to use valid tools after v2.25.0 removal

Replaced all references to removed tools in integration tests:
- list_nodes -> search_nodes
- get_database_statistics -> tools_documentation
- list_ai_tools -> search_nodes/tools_documentation
- list_tasks -> tools_documentation
- get_node_as_tool_info -> removed test section

Updated test files:
- tests/integration/mcp-protocol/basic-connection.test.ts
- tests/integration/mcp-protocol/performance.test.ts
- tests/integration/mcp-protocol/session-management.test.ts
- tests/integration/mcp-protocol/test-helpers.ts
- tests/integration/mcp-protocol/tool-invocation.test.ts
- tests/integration/telemetry/mcp-telemetry.test.ts
- tests/unit/mcp/disabled-tools.test.ts
- tests/unit/mcp/tools-documentation.test.ts

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>

* feat: Tool consolidation v2.26.0 - reduce tools by 38% (31 → 19)

Major consolidation of MCP tools using mode-based parameters for better
AI agent ergonomics:

Node Tools:
- get_node_documentation → get_node with mode='documentation'
- search_node_properties → get_node with mode='search_properties'
- get_property_dependencies → removed

Validation Tools:
- validate_node_operation + validate_node_minimal → validate_node with mode param

Template Tools:
- list_node_templates → search_templates with searchMode='nodes'
- search_templates_by_metadata → search_templates with searchMode='metadata'
- get_templates_for_task → search_templates with searchMode='task'

Workflow Getters:
- n8n_get_workflow_details/structure/minimal → n8n_get_workflow with mode param

Execution Tools:
- n8n_list/get/delete_execution → n8n_executions with action param

Test updates for all consolidated tools.

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

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

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

* docs: comprehensive README update for v2.26.0 tool consolidation

- Quick Start: Added hosted service (dashboard.n8n-mcp.com) as primary option
- Self-hosting: Renamed options to A (npx), B (Docker), C (Local), D (Railway)
- Removed: "Memory Leak Fix (v2.20.2)" section (outdated)
- Removed: "Known Issues" section (outdated container management)
- Claude Project Setup: Updated all tool references to v2.26.0 consolidated tools
  - validate_node({mode: 'minimal'|'full'}) instead of separate tools
  - search_templates({searchMode: ...}) unified template search
  - get_node({mode: 'docs'|'search_properties'}) for documentation
  - n8n_executions({action: ...}) unified execution management
- Available MCP Tools: Updated to show 19 consolidated tools (7 core + 12 mgmt)
- Recent Updates: Simplified to just link to CHANGELOG.md

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

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

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

* fix: update tool count from 31 to 19 in diagnostic message

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

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

* fix(tests): update tool count expectations for v2.26.0

Update handlers-n8n-manager.test.ts to expect new consolidated
tool counts (7/12/19) after v2.26.0 tool consolidation.

Conceived by Romuald Członkowski - 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>
 2025-11-25 18:39:00 +01:00
czlonkowski
821ace310e refactor: Improve DISABLED_TOOLS implementation based on code review 
Performance Optimization:
- Add caching to getDisabledTools() to prevent 3x parsing per request
- Cache result as instance property disabledToolsCache
- Reduces overhead from 3x to 1x per server instance

Security Improvements:
- Fix information disclosure in error responses
- Only reveal the attempted tool name, not full list of disabled tools
- Prevents leaking security configuration details

Safety Limits:
- Add 10KB maximum length for DISABLED_TOOLS environment variable
- Add 200-tool maximum limit to prevent abuse
- Include warnings when limits are exceeded

Code Quality:
- Add clarifying comment for defense-in-depth guard in executeTool()
- Change logging level from info to debug for frequent operations
- Add comprehensive JSDoc to TestableN8NMCPServer test classes
- Document test wrapper pattern and exposed methods

Test Updates:
- Update test to verify 200-tool safety limit enforcement
- All 45 tests passing with improved coverage

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>
 2025-11-09 17:00:23 +01:00
czlonkowski
53252adc68 feat: Add DISABLED_TOOLS environment variable for tool filtering (Issue #410) 
Added DISABLED_TOOLS environment variable to filter specific tools from registration at startup, enabling deployment-specific tool configuration for multi-tenant deployments, security hardening, and feature flags.

## Implementation

- Added getDisabledTools() method to parse comma-separated tool names from env var
- Modified ListToolsRequestSchema handler to filter both documentation and management tools
- Modified CallToolRequestSchema handler to reject disabled tool calls with clear error messages
- Added defense-in-depth guard in executeTool() method

## Features

- Environment variable format: DISABLED_TOOLS=tool1,tool2,tool3
- O(1) lookup performance using Set data structure
- Clear error messages with TOOL_DISABLED code
- Backward compatible (no DISABLED_TOOLS = all tools enabled)
- Comprehensive logging for observability

## Use Cases

- Multi-tenant: Hide tools that check global env vars
- Security: Disable management tools in production
- Feature flags: Gradually roll out new tools
- Deployment-specific: Different tool sets for cloud vs self-hosted

## Testing

- 45 comprehensive tests (all passing)
- 95% feature code coverage
- Unit tests + additional test scenarios
- Performance tested with 1000 tools (<100ms)

## Files Modified

- src/mcp/server.ts - Core implementation (~40 lines)
- .env.example, .env.docker - Configuration documentation
- tests/unit/mcp/disabled-tools*.test.ts - Comprehensive tests
- package.json, package.runtime.json - Version bump to 2.22.14
- CHANGELOG.md - Full documentation

Resolves #410

Conceived by Romuald Członkowski - www.aiadvisors.pl/en
 2025-11-09 16:26:47 +01:00