Validate n8n expression syntax and fix common errors. Use when writing n8n expressions, using {{}} syntax, accessing $json/$node variables, troubleshooting expression errors, or working with webhook data in workflows.
npx ai-builder add skill czlonkowski/n8n-expression-syntaxWrite JavaScript code in n8n Code nodes. Use when writing JavaScript in n8n, using $input/$json/$node syntax, making HTTP requests with $helpers, working with dates using DateTime, troubleshooting Code node errors, or choosing between Code node modes.
npx ai-builder add skill czlonkowski/n8n-code-javascriptOperation-aware node configuration guidance. Use when configuring nodes, understanding property dependencies, determining required fields, choosing between get_node detail levels, or learning common configuration patterns by node type.
npx ai-builder add skill czlonkowski/n8n-node-configurationWrite Python code in n8n Code nodes. Use when writing Python in n8n, using _input/_json/_node syntax, working with standard library, or need to understand Python limitations in n8n Code nodes.
npx ai-builder add skill czlonkowski/n8n-code-pythonExpert guide for using n8n-mcp MCP tools effectively. Use when searching for nodes, validating configurations, accessing templates, managing workflows, or using any n8n-mcp tool. Provides tool selection guidance, parameter formats, and common patterns.
npx ai-builder add skill czlonkowski/n8n-mcp-tools-expertInterpret validation errors and guide fixing them. Use when encountering validation errors, validation warnings, false positives, operator structure issues, or need help understanding validation results. Also use when asking about validation profiles, error types, or the validation loop process.
npx ai-builder add skill czlonkowski/n8n-validation-expertProven workflow architectural patterns from real n8n workflows. Use when building new workflows, designing workflow structure, choosing workflow patterns, planning workflow architecture, or asking about webhook processing, HTTP API integration, database operations, AI agent workflows, or scheduled tasks.
npx ai-builder add skill czlonkowski/n8n-workflow-patternsUse this agent when you need to test n8n-mcp functionality after implementing fixes or new features. This agent should be invoked proactively after code changes to validate that the MCP tools work correctly with real n8n workflows. The agent tests the actual MCP server tools, not just unit tests. Examples:\n\n<example>\nContext: Developer has just fixed a validation bug in the n8n-mcp server\nuser: "I've fixed the validation issue for HTTP Request nodes"\nassistant: "I've completed the fix. Now let me build the project and then test it."\n<builds project>\nassistant: "Project built successfully. Please reload the MCP server in Claude Desktop to apply the changes."\nuser: "Reloaded"\nassistant: "Great! Now let me invoke the n8n-mcp-tester agent to verify the fix works correctly."\n<commentary>\nSince a fix has been implemented and the MCP server reloaded, use the n8n-mcp-tester agent to validate the fix works in real-world usage.\n</commentary>\n</example>\n\n<example>\nContext: Developer has added a new MCP tool for workflow validation\nuser: "I've implemented the new workflow validation tool"\nassistant: "Implementation complete. Let me build and prepare for testing."\n<builds project>\nassistant: "Build successful. Please reload the MCP server to load the new tool."\nuser: "Done"\nassistant: "Perfect! I'll now use the n8n-mcp-tester agent to test the new workflow validation tool."\n<commentary>\nAfter implementing new MCP functionality and reloading the server, invoke n8n-mcp-tester to verify it works correctly.\n</commentary>\n</example>
npx ai-builder add agent czlonkowski/n8n-mcp-tester