* fix: AI node connection validation in partial workflow updates (#357)
Fix critical validation issue where n8n_update_partial_workflow incorrectly
required 'main' connections for AI nodes that exclusively use AI-specific
connection types (ai_languageModel, ai_memory, ai_embedding, ai_vectorStore, ai_tool).
Problem:
- Workflows containing AI nodes could not be updated via n8n_update_partial_workflow
- Validation incorrectly expected ALL nodes to have 'main' connections
- AI nodes only have AI-specific connection types, never 'main'
Root Cause:
- Zod schema in src/services/n8n-validation.ts defined 'main' as required field
- Schema didn't support AI-specific connection types
Fixed:
- Made 'main' connection optional in Zod schema
- Added support for all AI connection types: ai_tool, ai_languageModel, ai_memory,
ai_embedding, ai_vectorStore
- Created comprehensive test suite (13 tests) covering all AI connection scenarios
- Updated documentation to clarify AI nodes don't require 'main' connections
Testing:
- All 13 new integration tests passing
- Tested with actual workflow 019Vrw56aROeEzVj from issue #357
- Zero breaking changes (making required fields optional is always safe)
Files Changed:
- src/services/n8n-validation.ts - Fixed Zod schema
- tests/integration/workflow-diff/ai-node-connection-validation.test.ts - New test suite
- src/mcp/tool-docs/workflow_management/n8n-update-partial-workflow.ts - Updated docs
- package.json - Version bump to 2.21.1
- CHANGELOG.md - Comprehensive release notes
Closes#357🤖 Generated with Claude Code (https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Conceived by Romuald Członkowski - www.aiadvisors.pl/en
* fix: Add missing id parameter in test file and JSDoc comment
Address code review feedback from PR #358:
- Add 'id' field to all applyDiff calls in test file (fixes TypeScript errors)
- Add JSDoc comment explaining why 'main' is optional in schema
- Ensures TypeScript compilation succeeds
Changes:
- tests/integration/workflow-diff/ai-node-connection-validation.test.ts:
Added id parameter to all 13 test cases
- src/services/n8n-validation.ts:
Added JSDoc explaining optional main connections
Testing:
- npm run typecheck: PASS ✅
- npm run build: PASS ✅
- All 13 tests: PASS ✅🤖 Generated with Claude Code (https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Co-authored-by: Claude <noreply@anthropic.com>
