mirror of
https://github.com/czlonkowski/n8n-mcp.git
synced 2026-03-23 19:03:07 +00:00
feat: complete modular documentation system for all MCP tools (#60)
- Migrated all 40 MCP tools documentation to modular structure - Created comprehensive documentation with both essentials and full details - Organized tools by category: discovery, configuration, validation, templates, workflow_management, system, special - Fixed all TODO placeholders with informative, precise content - Each tool now has concise description, key tips, and full documentation - Improved documentation quality: 30-40% more concise while maintaining usefulness - Fixed TypeScript compilation issues and removed orphaned content - All tools accessible via tools_documentation MCP endpoint - Build successful with zero errors 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
4
src/mcp/tool-docs/system/index.ts
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4
src/mcp/tool-docs/system/index.ts
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export { toolsDocumentationDoc } from './tools-documentation';
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export { n8nDiagnosticDoc } from './n8n-diagnostic';
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export { n8nHealthCheckDoc } from './n8n-health-check';
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export { n8nListAvailableToolsDoc } from './n8n-list-available-tools';
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79
src/mcp/tool-docs/system/n8n-diagnostic.ts
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src/mcp/tool-docs/system/n8n-diagnostic.ts
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import { ToolDocumentation } from '../types';
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export const n8nDiagnosticDoc: ToolDocumentation = {
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name: 'n8n_diagnostic',
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category: 'system',
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essentials: {
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description: 'Diagnose n8n API configuration and troubleshoot why n8n management tools might not be working',
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keyParameters: ['verbose'],
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example: 'n8n_diagnostic({verbose: true})',
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performance: 'Instant - checks environment and configuration only',
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tips: [
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'Run first when n8n tools are missing or failing - shows exact configuration issues',
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'Use verbose=true for detailed debugging info including environment variables',
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'If tools are missing, check that N8N_API_URL and N8N_API_KEY are configured'
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]
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},
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full: {
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description: `Comprehensive diagnostic tool for troubleshooting n8n API configuration and management tool availability.
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This tool performs a detailed check of:
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- Environment variable configuration (N8N_API_URL, N8N_API_KEY)
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- API connectivity and authentication
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- Tool availability status
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- Common configuration issues
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The diagnostic is essential when:
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- n8n management tools aren't showing up in the available tools list
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- API calls are failing with authentication or connection errors
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- You need to verify your n8n instance configuration`,
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parameters: {
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verbose: {
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type: 'boolean',
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description: 'Include detailed debug information including full environment variables and API response details',
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required: false,
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default: false
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}
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},
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returns: `Diagnostic report object containing:
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- status: Overall health status ('ok', 'error', 'not_configured')
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- apiUrl: Detected API URL (or null if not configured)
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- apiKeyStatus: Status of API key ('configured', 'missing', 'invalid')
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- toolsAvailable: Number of n8n management tools available
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- connectivity: API connectivity test results
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- errors: Array of specific error messages
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- suggestions: Array of actionable fix suggestions
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- verbose: Additional debug information (if verbose=true)`,
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examples: [
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'n8n_diagnostic({}) - Quick diagnostic check',
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'n8n_diagnostic({verbose: true}) - Detailed diagnostic with environment info',
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'n8n_diagnostic({verbose: false}) - Standard diagnostic without sensitive data'
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],
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useCases: [
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'Initial setup verification after configuring N8N_API_URL and N8N_API_KEY',
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'Troubleshooting when n8n management tools are not available',
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'Debugging API connection failures or authentication errors',
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'Verifying n8n instance compatibility and feature availability',
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'Pre-deployment checks before using workflow management tools'
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],
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performance: `Instant response time:
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- No database queries
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- Only checks environment and makes one test API call
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- Verbose mode adds minimal overhead
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- Safe to run frequently for monitoring`,
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bestPractices: [
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'Always run diagnostic first when encountering n8n tool issues',
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'Use verbose mode only in secure environments (may expose API URLs)',
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'Check diagnostic before attempting workflow operations',
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'Include diagnostic output when reporting issues',
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'Run after any configuration changes to verify setup'
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],
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pitfalls: [
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'Verbose mode may expose sensitive configuration details - use carefully',
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'Requires proper environment variables to detect n8n configuration',
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'API connectivity test requires network access to n8n instance',
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'Does not test specific workflow operations, only basic connectivity'
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],
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relatedTools: ['n8n_health_check', 'n8n_list_available_tools', 'tools_documentation']
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}
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};
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75
src/mcp/tool-docs/system/n8n-health-check.ts
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src/mcp/tool-docs/system/n8n-health-check.ts
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import { ToolDocumentation } from '../types';
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export const n8nHealthCheckDoc: ToolDocumentation = {
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name: 'n8n_health_check',
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category: 'system',
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essentials: {
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description: 'Check n8n instance health, API connectivity, and available features',
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keyParameters: [],
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example: 'n8n_health_check({})',
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performance: 'Fast - single API call to health endpoint',
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tips: [
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'Use before starting workflow operations to ensure n8n is responsive',
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'Check regularly in production environments for monitoring',
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'Returns version info and feature availability for compatibility checks'
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]
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},
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full: {
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description: `Performs a comprehensive health check of the configured n8n instance through its API.
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This tool verifies:
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- API endpoint accessibility and response time
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- n8n instance version and build information
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- Authentication status and permissions
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- Available features and enterprise capabilities
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- Database connectivity (as reported by n8n)
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- Queue system status (if configured)
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Health checks are crucial for:
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- Monitoring n8n instance availability
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- Detecting performance degradation
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- Verifying API compatibility before operations
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- Ensuring authentication is working correctly`,
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parameters: {},
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returns: `Health status object containing:
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- status: Overall health status ('healthy', 'degraded', 'error')
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- version: n8n instance version information
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- instanceId: Unique identifier for the n8n instance
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- features: Object listing available features and their status
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- apiVersion: API version for compatibility checking
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- responseTime: API response time in milliseconds
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- timestamp: Check timestamp
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- details: Additional health metrics from n8n`,
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examples: [
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'n8n_health_check({}) - Standard health check',
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'// Use in monitoring scripts\nconst health = await n8n_health_check({});\nif (health.status !== "healthy") alert("n8n is down!");',
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'// Check before critical operations\nconst health = await n8n_health_check({});\nif (health.responseTime > 1000) console.warn("n8n is slow");'
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],
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useCases: [
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'Pre-flight checks before workflow deployments',
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'Continuous monitoring of n8n instance health',
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'Troubleshooting connectivity or performance issues',
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'Verifying n8n version compatibility with workflows',
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'Detecting feature availability (enterprise features, queue mode, etc.)'
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],
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performance: `Fast response expected:
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- Single HTTP request to /health endpoint
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- Typically responds in <100ms for healthy instances
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- Timeout after 10 seconds indicates severe issues
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- Minimal server load - safe for frequent polling`,
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bestPractices: [
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'Run health checks before batch operations or deployments',
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'Set up automated monitoring with regular health checks',
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'Log response times to detect performance trends',
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'Check version compatibility when deploying workflows',
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'Use health status to implement circuit breaker patterns'
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],
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pitfalls: [
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'Requires N8N_API_URL and N8N_API_KEY to be configured',
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'Network issues may cause false negatives',
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'Does not check individual workflow health',
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'Health endpoint might be cached - not real-time for all metrics'
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],
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relatedTools: ['n8n_diagnostic', 'n8n_list_available_tools', 'n8n_list_workflows']
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}
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};
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73
src/mcp/tool-docs/system/n8n-list-available-tools.ts
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src/mcp/tool-docs/system/n8n-list-available-tools.ts
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import { ToolDocumentation } from '../types';
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export const n8nListAvailableToolsDoc: ToolDocumentation = {
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name: 'n8n_list_available_tools',
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category: 'system',
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essentials: {
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description: 'List all available n8n management tools and their capabilities',
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keyParameters: [],
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example: 'n8n_list_available_tools({})',
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performance: 'Instant - returns static tool list',
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tips: [
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'Shows only tools available with current API configuration',
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'If no n8n tools appear, run n8n_diagnostic to troubleshoot',
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'Tool availability depends on N8N_API_URL and N8N_API_KEY being set'
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]
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},
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full: {
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description: `Lists all available n8n management tools based on current configuration.
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This tool provides:
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- Complete list of n8n management tools (when API is configured)
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- Tool descriptions and capabilities
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- Categorized tool listing (workflow, execution, system)
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- Dynamic availability based on API configuration
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The tool list is dynamic:
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- Shows 14+ management tools when N8N_API_URL and N8N_API_KEY are configured
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- Shows only documentation tools when API is not configured
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- Helps discover available functionality
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- Provides quick reference for tool names and purposes`,
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parameters: {},
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returns: `Object containing:
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- tools: Array of available tool objects, each with:
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- name: Tool identifier (e.g., 'n8n_create_workflow')
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- description: Brief description of tool functionality
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- category: Tool category ('workflow', 'execution', 'system')
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- requiresApi: Whether tool needs API configuration
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- categories: Summary count by category
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- totalTools: Total number of available tools
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- apiConfigured: Whether n8n API is configured`,
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examples: [
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'n8n_list_available_tools({}) - List all available tools',
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'// Check for specific tool availability\nconst tools = await n8n_list_available_tools({});\nconst hasWorkflowTools = tools.tools.some(t => t.category === "workflow");',
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'// Discover management capabilities\nconst result = await n8n_list_available_tools({});\nconsole.log(`${result.totalTools} tools available`);'
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],
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useCases: [
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'Discovering available n8n management capabilities',
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'Checking if API configuration is working correctly',
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'Finding the right tool for a specific task',
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'Generating help documentation or command lists',
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'Verifying tool availability before automation scripts'
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],
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performance: `Instant response:
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- No API calls required
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- Returns pre-defined tool list
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- Filtered based on configuration
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- Zero network overhead`,
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bestPractices: [
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'Check tool availability before building automation workflows',
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'Use with n8n_diagnostic if expected tools are missing',
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'Reference tool names exactly as returned by this tool',
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'Group operations by category for better organization',
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'Cache results as tool list only changes with configuration'
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],
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pitfalls: [
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'Tool list is empty if N8N_API_URL and N8N_API_KEY are not set',
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'Does not validate if tools will actually work - just shows availability',
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'Tool names must be used exactly as returned',
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'Does not show tool parameters - use tools_documentation for details'
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],
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relatedTools: ['n8n_diagnostic', 'n8n_health_check', 'tools_documentation']
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}
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};
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44
src/mcp/tool-docs/system/tools-documentation.ts
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44
src/mcp/tool-docs/system/tools-documentation.ts
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import { ToolDocumentation } from '../types';
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export const toolsDocumentationDoc: ToolDocumentation = {
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name: 'tools_documentation',
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category: 'system',
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essentials: {
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description: 'Get MCP tool docs. No params = overview.',
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keyParameters: ['topic', 'depth'],
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example: 'tools_documentation({topic: "search_nodes"})',
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performance: 'Instant',
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tips: [
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'No params = quick start',
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'depth:"full" for details'
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]
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},
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full: {
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description: 'Get documentation for any MCP tool. Without params returns quick start guide. With topic returns tool-specific docs.',
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parameters: {
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topic: { type: 'string', description: 'Tool name or "overview"', required: false },
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depth: { type: 'string', description: '"essentials" or "full"', required: false }
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},
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returns: 'Markdown documentation',
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examples: [
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'tools_documentation() - Quick start',
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'tools_documentation({topic: "search_nodes", depth: "full"}) - Full docs'
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],
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useCases: [
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'Learning tool usage',
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'Finding parameters',
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'Getting examples'
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],
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performance: 'Instant',
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bestPractices: [
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'Start with no params',
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'Use essentials for quick lookup',
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'Full depth for debugging'
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],
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pitfalls: [
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'Tool names must match exactly',
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'Some features undocumented'
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],
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relatedTools: ['n8n_list_available_tools', 'list_tasks']
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}
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};
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