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# Directory Structure
```
├── _config.yml
├── .claude
│ └── agents
│ ├── code-reviewer.md
│ ├── context-manager.md
│ ├── debugger.md
│ ├── deployment-engineer.md
│ ├── mcp-backend-engineer.md
│ ├── n8n-mcp-tester.md
│ ├── technical-researcher.md
│ └── test-automator.md
├── .dockerignore
├── .env.docker
├── .env.example
├── .env.n8n.example
├── .env.test
├── .env.test.example
├── .github
│ ├── ABOUT.md
│ ├── BENCHMARK_THRESHOLDS.md
│ ├── FUNDING.yml
│ ├── gh-pages.yml
│ ├── secret_scanning.yml
│ └── workflows
│ ├── benchmark-pr.yml
│ ├── benchmark.yml
│ ├── docker-build-fast.yml
│ ├── docker-build-n8n.yml
│ ├── docker-build.yml
│ ├── release.yml
│ ├── test.yml
│ └── update-n8n-deps.yml
├── .gitignore
├── .npmignore
├── ATTRIBUTION.md
├── CHANGELOG.md
├── CLAUDE.md
├── codecov.yml
├── coverage.json
├── data
│ ├── .gitkeep
│ ├── nodes.db
│ ├── nodes.db-shm
│ ├── nodes.db-wal
│ └── templates.db
├── deploy
│ └── quick-deploy-n8n.sh
├── docker
│ ├── docker-entrypoint.sh
│ ├── n8n-mcp
│ ├── parse-config.js
│ └── README.md
├── docker-compose.buildkit.yml
├── docker-compose.extract.yml
├── docker-compose.n8n.yml
├── docker-compose.override.yml.example
├── docker-compose.test-n8n.yml
├── docker-compose.yml
├── Dockerfile
├── Dockerfile.railway
├── Dockerfile.test
├── docs
│ ├── AUTOMATED_RELEASES.md
│ ├── BENCHMARKS.md
│ ├── CHANGELOG.md
│ ├── CLAUDE_CODE_SETUP.md
│ ├── CLAUDE_INTERVIEW.md
│ ├── CODECOV_SETUP.md
│ ├── CODEX_SETUP.md
│ ├── CURSOR_SETUP.md
│ ├── DEPENDENCY_UPDATES.md
│ ├── DOCKER_README.md
│ ├── DOCKER_TROUBLESHOOTING.md
│ ├── FINAL_AI_VALIDATION_SPEC.md
│ ├── FLEXIBLE_INSTANCE_CONFIGURATION.md
│ ├── HTTP_DEPLOYMENT.md
│ ├── img
│ │ ├── cc_command.png
│ │ ├── cc_connected.png
│ │ ├── codex_connected.png
│ │ ├── cursor_tut.png
│ │ ├── Railway_api.png
│ │ ├── Railway_server_address.png
│ │ ├── vsc_ghcp_chat_agent_mode.png
│ │ ├── vsc_ghcp_chat_instruction_files.png
│ │ ├── vsc_ghcp_chat_thinking_tool.png
│ │ └── windsurf_tut.png
│ ├── INSTALLATION.md
│ ├── LIBRARY_USAGE.md
│ ├── local
│ │ ├── DEEP_DIVE_ANALYSIS_2025-10-02.md
│ │ ├── DEEP_DIVE_ANALYSIS_README.md
│ │ ├── Deep_dive_p1_p2.md
│ │ ├── integration-testing-plan.md
│ │ ├── integration-tests-phase1-summary.md
│ │ ├── N8N_AI_WORKFLOW_BUILDER_ANALYSIS.md
│ │ ├── P0_IMPLEMENTATION_PLAN.md
│ │ └── TEMPLATE_MINING_ANALYSIS.md
│ ├── MCP_ESSENTIALS_README.md
│ ├── MCP_QUICK_START_GUIDE.md
│ ├── N8N_DEPLOYMENT.md
│ ├── RAILWAY_DEPLOYMENT.md
│ ├── README_CLAUDE_SETUP.md
│ ├── README.md
│ ├── tools-documentation-usage.md
│ ├── VS_CODE_PROJECT_SETUP.md
│ ├── WINDSURF_SETUP.md
│ └── workflow-diff-examples.md
├── examples
│ └── enhanced-documentation-demo.js
├── fetch_log.txt
├── LICENSE
├── MEMORY_N8N_UPDATE.md
├── MEMORY_TEMPLATE_UPDATE.md
├── monitor_fetch.sh
├── N8N_HTTP_STREAMABLE_SETUP.md
├── n8n-nodes.db
├── P0-R3-TEST-PLAN.md
├── package-lock.json
├── package.json
├── package.runtime.json
├── PRIVACY.md
├── railway.json
├── README.md
├── renovate.json
├── scripts
│ ├── analyze-optimization.sh
│ ├── audit-schema-coverage.ts
│ ├── build-optimized.sh
│ ├── compare-benchmarks.js
│ ├── demo-optimization.sh
│ ├── deploy-http.sh
│ ├── deploy-to-vm.sh
│ ├── export-webhook-workflows.ts
│ ├── extract-changelog.js
│ ├── extract-from-docker.js
│ ├── extract-nodes-docker.sh
│ ├── extract-nodes-simple.sh
│ ├── format-benchmark-results.js
│ ├── generate-benchmark-stub.js
│ ├── generate-detailed-reports.js
│ ├── generate-test-summary.js
│ ├── http-bridge.js
│ ├── mcp-http-client.js
│ ├── migrate-nodes-fts.ts
│ ├── migrate-tool-docs.ts
│ ├── n8n-docs-mcp.service
│ ├── nginx-n8n-mcp.conf
│ ├── prebuild-fts5.ts
│ ├── prepare-release.js
│ ├── publish-npm-quick.sh
│ ├── publish-npm.sh
│ ├── quick-test.ts
│ ├── run-benchmarks-ci.js
│ ├── sync-runtime-version.js
│ ├── test-ai-validation-debug.ts
│ ├── test-code-node-enhancements.ts
│ ├── test-code-node-fixes.ts
│ ├── test-docker-config.sh
│ ├── test-docker-fingerprint.ts
│ ├── test-docker-optimization.sh
│ ├── test-docker.sh
│ ├── test-empty-connection-validation.ts
│ ├── test-error-message-tracking.ts
│ ├── test-error-output-validation.ts
│ ├── test-error-validation.js
│ ├── test-essentials.ts
│ ├── test-expression-code-validation.ts
│ ├── test-expression-format-validation.js
│ ├── test-fts5-search.ts
│ ├── test-fuzzy-fix.ts
│ ├── test-fuzzy-simple.ts
│ ├── test-helpers-validation.ts
│ ├── test-http-search.ts
│ ├── test-http.sh
│ ├── test-jmespath-validation.ts
│ ├── test-multi-tenant-simple.ts
│ ├── test-multi-tenant.ts
│ ├── test-n8n-integration.sh
│ ├── test-node-info.js
│ ├── test-node-type-validation.ts
│ ├── test-nodes-base-prefix.ts
│ ├── test-operation-validation.ts
│ ├── test-optimized-docker.sh
│ ├── test-release-automation.js
│ ├── test-search-improvements.ts
│ ├── test-security.ts
│ ├── test-single-session.sh
│ ├── test-sqljs-triggers.ts
│ ├── test-telemetry-debug.ts
│ ├── test-telemetry-direct.ts
│ ├── test-telemetry-env.ts
│ ├── test-telemetry-integration.ts
│ ├── test-telemetry-no-select.ts
│ ├── test-telemetry-security.ts
│ ├── test-telemetry-simple.ts
│ ├── test-typeversion-validation.ts
│ ├── test-url-configuration.ts
│ ├── test-user-id-persistence.ts
│ ├── test-webhook-validation.ts
│ ├── test-workflow-insert.ts
│ ├── test-workflow-sanitizer.ts
│ ├── test-workflow-tracking-debug.ts
│ ├── update-and-publish-prep.sh
│ ├── update-n8n-deps.js
│ ├── update-readme-version.js
│ ├── vitest-benchmark-json-reporter.js
│ └── vitest-benchmark-reporter.ts
├── SECURITY.md
├── src
│ ├── config
│ │ └── n8n-api.ts
│ ├── data
│ │ └── canonical-ai-tool-examples.json
│ ├── database
│ │ ├── database-adapter.ts
│ │ ├── migrations
│ │ │ └── add-template-node-configs.sql
│ │ ├── node-repository.ts
│ │ ├── nodes.db
│ │ ├── schema-optimized.sql
│ │ └── schema.sql
│ ├── errors
│ │ └── validation-service-error.ts
│ ├── http-server-single-session.ts
│ ├── http-server.ts
│ ├── index.ts
│ ├── loaders
│ │ └── node-loader.ts
│ ├── mappers
│ │ └── docs-mapper.ts
│ ├── mcp
│ │ ├── handlers-n8n-manager.ts
│ │ ├── handlers-workflow-diff.ts
│ │ ├── index.ts
│ │ ├── server.ts
│ │ ├── stdio-wrapper.ts
│ │ ├── tool-docs
│ │ │ ├── configuration
│ │ │ │ ├── get-node-as-tool-info.ts
│ │ │ │ ├── get-node-documentation.ts
│ │ │ │ ├── get-node-essentials.ts
│ │ │ │ ├── get-node-info.ts
│ │ │ │ ├── get-property-dependencies.ts
│ │ │ │ ├── index.ts
│ │ │ │ └── search-node-properties.ts
│ │ │ ├── discovery
│ │ │ │ ├── get-database-statistics.ts
│ │ │ │ ├── index.ts
│ │ │ │ ├── list-ai-tools.ts
│ │ │ │ ├── list-nodes.ts
│ │ │ │ └── search-nodes.ts
│ │ │ ├── guides
│ │ │ │ ├── ai-agents-guide.ts
│ │ │ │ └── index.ts
│ │ │ ├── index.ts
│ │ │ ├── system
│ │ │ │ ├── index.ts
│ │ │ │ ├── n8n-diagnostic.ts
│ │ │ │ ├── n8n-health-check.ts
│ │ │ │ ├── n8n-list-available-tools.ts
│ │ │ │ └── tools-documentation.ts
│ │ │ ├── templates
│ │ │ │ ├── get-template.ts
│ │ │ │ ├── get-templates-for-task.ts
│ │ │ │ ├── index.ts
│ │ │ │ ├── list-node-templates.ts
│ │ │ │ ├── list-tasks.ts
│ │ │ │ ├── search-templates-by-metadata.ts
│ │ │ │ └── search-templates.ts
│ │ │ ├── types.ts
│ │ │ ├── validation
│ │ │ │ ├── index.ts
│ │ │ │ ├── validate-node-minimal.ts
│ │ │ │ ├── validate-node-operation.ts
│ │ │ │ ├── validate-workflow-connections.ts
│ │ │ │ ├── validate-workflow-expressions.ts
│ │ │ │ └── validate-workflow.ts
│ │ │ └── workflow_management
│ │ │ ├── index.ts
│ │ │ ├── n8n-autofix-workflow.ts
│ │ │ ├── n8n-create-workflow.ts
│ │ │ ├── n8n-delete-execution.ts
│ │ │ ├── n8n-delete-workflow.ts
│ │ │ ├── n8n-get-execution.ts
│ │ │ ├── n8n-get-workflow-details.ts
│ │ │ ├── n8n-get-workflow-minimal.ts
│ │ │ ├── n8n-get-workflow-structure.ts
│ │ │ ├── n8n-get-workflow.ts
│ │ │ ├── n8n-list-executions.ts
│ │ │ ├── n8n-list-workflows.ts
│ │ │ ├── n8n-trigger-webhook-workflow.ts
│ │ │ ├── n8n-update-full-workflow.ts
│ │ │ ├── n8n-update-partial-workflow.ts
│ │ │ └── n8n-validate-workflow.ts
│ │ ├── tools-documentation.ts
│ │ ├── tools-n8n-friendly.ts
│ │ ├── tools-n8n-manager.ts
│ │ ├── tools.ts
│ │ └── workflow-examples.ts
│ ├── mcp-engine.ts
│ ├── mcp-tools-engine.ts
│ ├── n8n
│ │ ├── MCPApi.credentials.ts
│ │ └── MCPNode.node.ts
│ ├── parsers
│ │ ├── node-parser.ts
│ │ ├── property-extractor.ts
│ │ └── simple-parser.ts
│ ├── scripts
│ │ ├── debug-http-search.ts
│ │ ├── extract-from-docker.ts
│ │ ├── fetch-templates-robust.ts
│ │ ├── fetch-templates.ts
│ │ ├── rebuild-database.ts
│ │ ├── rebuild-optimized.ts
│ │ ├── rebuild.ts
│ │ ├── sanitize-templates.ts
│ │ ├── seed-canonical-ai-examples.ts
│ │ ├── test-autofix-documentation.ts
│ │ ├── test-autofix-workflow.ts
│ │ ├── test-execution-filtering.ts
│ │ ├── test-node-suggestions.ts
│ │ ├── test-protocol-negotiation.ts
│ │ ├── test-summary.ts
│ │ ├── test-webhook-autofix.ts
│ │ ├── validate.ts
│ │ └── validation-summary.ts
│ ├── services
│ │ ├── ai-node-validator.ts
│ │ ├── ai-tool-validators.ts
│ │ ├── confidence-scorer.ts
│ │ ├── config-validator.ts
│ │ ├── enhanced-config-validator.ts
│ │ ├── example-generator.ts
│ │ ├── execution-processor.ts
│ │ ├── expression-format-validator.ts
│ │ ├── expression-validator.ts
│ │ ├── n8n-api-client.ts
│ │ ├── n8n-validation.ts
│ │ ├── node-documentation-service.ts
│ │ ├── node-similarity-service.ts
│ │ ├── node-specific-validators.ts
│ │ ├── operation-similarity-service.ts
│ │ ├── property-dependencies.ts
│ │ ├── property-filter.ts
│ │ ├── resource-similarity-service.ts
│ │ ├── sqlite-storage-service.ts
│ │ ├── task-templates.ts
│ │ ├── universal-expression-validator.ts
│ │ ├── workflow-auto-fixer.ts
│ │ ├── workflow-diff-engine.ts
│ │ └── workflow-validator.ts
│ ├── telemetry
│ │ ├── batch-processor.ts
│ │ ├── config-manager.ts
│ │ ├── early-error-logger.ts
│ │ ├── error-sanitization-utils.ts
│ │ ├── error-sanitizer.ts
│ │ ├── event-tracker.ts
│ │ ├── event-validator.ts
│ │ ├── index.ts
│ │ ├── performance-monitor.ts
│ │ ├── rate-limiter.ts
│ │ ├── startup-checkpoints.ts
│ │ ├── telemetry-error.ts
│ │ ├── telemetry-manager.ts
│ │ ├── telemetry-types.ts
│ │ └── workflow-sanitizer.ts
│ ├── templates
│ │ ├── batch-processor.ts
│ │ ├── metadata-generator.ts
│ │ ├── README.md
│ │ ├── template-fetcher.ts
│ │ ├── template-repository.ts
│ │ └── template-service.ts
│ ├── types
│ │ ├── index.ts
│ │ ├── instance-context.ts
│ │ ├── n8n-api.ts
│ │ ├── node-types.ts
│ │ └── workflow-diff.ts
│ └── utils
│ ├── auth.ts
│ ├── bridge.ts
│ ├── cache-utils.ts
│ ├── console-manager.ts
│ ├── documentation-fetcher.ts
│ ├── enhanced-documentation-fetcher.ts
│ ├── error-handler.ts
│ ├── example-generator.ts
│ ├── fixed-collection-validator.ts
│ ├── logger.ts
│ ├── mcp-client.ts
│ ├── n8n-errors.ts
│ ├── node-source-extractor.ts
│ ├── node-type-normalizer.ts
│ ├── node-type-utils.ts
│ ├── node-utils.ts
│ ├── npm-version-checker.ts
│ ├── protocol-version.ts
│ ├── simple-cache.ts
│ ├── ssrf-protection.ts
│ ├── template-node-resolver.ts
│ ├── template-sanitizer.ts
│ ├── url-detector.ts
│ ├── validation-schemas.ts
│ └── version.ts
├── test-output.txt
├── test-reinit-fix.sh
├── tests
│ ├── __snapshots__
│ │ └── .gitkeep
│ ├── auth.test.ts
│ ├── benchmarks
│ │ ├── database-queries.bench.ts
│ │ ├── index.ts
│ │ ├── mcp-tools.bench.ts
│ │ ├── mcp-tools.bench.ts.disabled
│ │ ├── mcp-tools.bench.ts.skip
│ │ ├── node-loading.bench.ts.disabled
│ │ ├── README.md
│ │ ├── search-operations.bench.ts.disabled
│ │ └── validation-performance.bench.ts.disabled
│ ├── bridge.test.ts
│ ├── comprehensive-extraction-test.js
│ ├── data
│ │ └── .gitkeep
│ ├── debug-slack-doc.js
│ ├── demo-enhanced-documentation.js
│ ├── docker-tests-README.md
│ ├── error-handler.test.ts
│ ├── examples
│ │ └── using-database-utils.test.ts
│ ├── extracted-nodes-db
│ │ ├── database-import.json
│ │ ├── extraction-report.json
│ │ ├── insert-nodes.sql
│ │ ├── n8n-nodes-base__Airtable.json
│ │ ├── n8n-nodes-base__Discord.json
│ │ ├── n8n-nodes-base__Function.json
│ │ ├── n8n-nodes-base__HttpRequest.json
│ │ ├── n8n-nodes-base__If.json
│ │ ├── n8n-nodes-base__Slack.json
│ │ ├── n8n-nodes-base__SplitInBatches.json
│ │ └── n8n-nodes-base__Webhook.json
│ ├── factories
│ │ ├── node-factory.ts
│ │ └── property-definition-factory.ts
│ ├── fixtures
│ │ ├── .gitkeep
│ │ ├── database
│ │ │ └── test-nodes.json
│ │ ├── factories
│ │ │ ├── node.factory.ts
│ │ │ └── parser-node.factory.ts
│ │ └── template-configs.ts
│ ├── helpers
│ │ └── env-helpers.ts
│ ├── http-server-auth.test.ts
│ ├── integration
│ │ ├── ai-validation
│ │ │ ├── ai-agent-validation.test.ts
│ │ │ ├── ai-tool-validation.test.ts
│ │ │ ├── chat-trigger-validation.test.ts
│ │ │ ├── e2e-validation.test.ts
│ │ │ ├── helpers.ts
│ │ │ ├── llm-chain-validation.test.ts
│ │ │ ├── README.md
│ │ │ └── TEST_REPORT.md
│ │ ├── ci
│ │ │ └── database-population.test.ts
│ │ ├── database
│ │ │ ├── connection-management.test.ts
│ │ │ ├── empty-database.test.ts
│ │ │ ├── fts5-search.test.ts
│ │ │ ├── node-fts5-search.test.ts
│ │ │ ├── node-repository.test.ts
│ │ │ ├── performance.test.ts
│ │ │ ├── template-node-configs.test.ts
│ │ │ ├── template-repository.test.ts
│ │ │ ├── test-utils.ts
│ │ │ └── transactions.test.ts
│ │ ├── database-integration.test.ts
│ │ ├── docker
│ │ │ ├── docker-config.test.ts
│ │ │ ├── docker-entrypoint.test.ts
│ │ │ └── test-helpers.ts
│ │ ├── flexible-instance-config.test.ts
│ │ ├── mcp
│ │ │ └── template-examples-e2e.test.ts
│ │ ├── mcp-protocol
│ │ │ ├── basic-connection.test.ts
│ │ │ ├── error-handling.test.ts
│ │ │ ├── performance.test.ts
│ │ │ ├── protocol-compliance.test.ts
│ │ │ ├── README.md
│ │ │ ├── session-management.test.ts
│ │ │ ├── test-helpers.ts
│ │ │ ├── tool-invocation.test.ts
│ │ │ └── workflow-error-validation.test.ts
│ │ ├── msw-setup.test.ts
│ │ ├── n8n-api
│ │ │ ├── executions
│ │ │ │ ├── delete-execution.test.ts
│ │ │ │ ├── get-execution.test.ts
│ │ │ │ ├── list-executions.test.ts
│ │ │ │ └── trigger-webhook.test.ts
│ │ │ ├── scripts
│ │ │ │ └── cleanup-orphans.ts
│ │ │ ├── system
│ │ │ │ ├── diagnostic.test.ts
│ │ │ │ ├── health-check.test.ts
│ │ │ │ └── list-tools.test.ts
│ │ │ ├── test-connection.ts
│ │ │ ├── types
│ │ │ │ └── mcp-responses.ts
│ │ │ ├── utils
│ │ │ │ ├── cleanup-helpers.ts
│ │ │ │ ├── credentials.ts
│ │ │ │ ├── factories.ts
│ │ │ │ ├── fixtures.ts
│ │ │ │ ├── mcp-context.ts
│ │ │ │ ├── n8n-client.ts
│ │ │ │ ├── node-repository.ts
│ │ │ │ ├── response-types.ts
│ │ │ │ ├── test-context.ts
│ │ │ │ └── webhook-workflows.ts
│ │ │ └── workflows
│ │ │ ├── autofix-workflow.test.ts
│ │ │ ├── create-workflow.test.ts
│ │ │ ├── delete-workflow.test.ts
│ │ │ ├── get-workflow-details.test.ts
│ │ │ ├── get-workflow-minimal.test.ts
│ │ │ ├── get-workflow-structure.test.ts
│ │ │ ├── get-workflow.test.ts
│ │ │ ├── list-workflows.test.ts
│ │ │ ├── smart-parameters.test.ts
│ │ │ ├── update-partial-workflow.test.ts
│ │ │ ├── update-workflow.test.ts
│ │ │ └── validate-workflow.test.ts
│ │ ├── security
│ │ │ ├── command-injection-prevention.test.ts
│ │ │ └── rate-limiting.test.ts
│ │ ├── setup
│ │ │ ├── integration-setup.ts
│ │ │ └── msw-test-server.ts
│ │ ├── telemetry
│ │ │ ├── docker-user-id-stability.test.ts
│ │ │ └── mcp-telemetry.test.ts
│ │ ├── templates
│ │ │ └── metadata-operations.test.ts
│ │ └── workflow-creation-node-type-format.test.ts
│ ├── logger.test.ts
│ ├── MOCKING_STRATEGY.md
│ ├── mocks
│ │ ├── n8n-api
│ │ │ ├── data
│ │ │ │ ├── credentials.ts
│ │ │ │ ├── executions.ts
│ │ │ │ └── workflows.ts
│ │ │ ├── handlers.ts
│ │ │ └── index.ts
│ │ └── README.md
│ ├── node-storage-export.json
│ ├── setup
│ │ ├── global-setup.ts
│ │ ├── msw-setup.ts
│ │ ├── TEST_ENV_DOCUMENTATION.md
│ │ └── test-env.ts
│ ├── test-database-extraction.js
│ ├── test-direct-extraction.js
│ ├── test-enhanced-documentation.js
│ ├── test-enhanced-integration.js
│ ├── test-mcp-extraction.js
│ ├── test-mcp-server-extraction.js
│ ├── test-mcp-tools-integration.js
│ ├── test-node-documentation-service.js
│ ├── test-node-list.js
│ ├── test-package-info.js
│ ├── test-parsing-operations.js
│ ├── test-slack-node-complete.js
│ ├── test-small-rebuild.js
│ ├── test-sqlite-search.js
│ ├── test-storage-system.js
│ ├── unit
│ │ ├── __mocks__
│ │ │ ├── n8n-nodes-base.test.ts
│ │ │ ├── n8n-nodes-base.ts
│ │ │ └── README.md
│ │ ├── database
│ │ │ ├── __mocks__
│ │ │ │ └── better-sqlite3.ts
│ │ │ ├── database-adapter-unit.test.ts
│ │ │ ├── node-repository-core.test.ts
│ │ │ ├── node-repository-operations.test.ts
│ │ │ ├── node-repository-outputs.test.ts
│ │ │ ├── README.md
│ │ │ └── template-repository-core.test.ts
│ │ ├── docker
│ │ │ ├── config-security.test.ts
│ │ │ ├── edge-cases.test.ts
│ │ │ ├── parse-config.test.ts
│ │ │ └── serve-command.test.ts
│ │ ├── errors
│ │ │ └── validation-service-error.test.ts
│ │ ├── examples
│ │ │ └── using-n8n-nodes-base-mock.test.ts
│ │ ├── flexible-instance-security-advanced.test.ts
│ │ ├── flexible-instance-security.test.ts
│ │ ├── http-server
│ │ │ └── multi-tenant-support.test.ts
│ │ ├── http-server-n8n-mode.test.ts
│ │ ├── http-server-n8n-reinit.test.ts
│ │ ├── http-server-session-management.test.ts
│ │ ├── loaders
│ │ │ └── node-loader.test.ts
│ │ ├── mappers
│ │ │ └── docs-mapper.test.ts
│ │ ├── mcp
│ │ │ ├── get-node-essentials-examples.test.ts
│ │ │ ├── handlers-n8n-manager-simple.test.ts
│ │ │ ├── handlers-n8n-manager.test.ts
│ │ │ ├── handlers-workflow-diff.test.ts
│ │ │ ├── lru-cache-behavior.test.ts
│ │ │ ├── multi-tenant-tool-listing.test.ts.disabled
│ │ │ ├── parameter-validation.test.ts
│ │ │ ├── search-nodes-examples.test.ts
│ │ │ ├── tools-documentation.test.ts
│ │ │ └── tools.test.ts
│ │ ├── monitoring
│ │ │ └── cache-metrics.test.ts
│ │ ├── MULTI_TENANT_TEST_COVERAGE.md
│ │ ├── multi-tenant-integration.test.ts
│ │ ├── parsers
│ │ │ ├── node-parser-outputs.test.ts
│ │ │ ├── node-parser.test.ts
│ │ │ ├── property-extractor.test.ts
│ │ │ └── simple-parser.test.ts
│ │ ├── scripts
│ │ │ └── fetch-templates-extraction.test.ts
│ │ ├── services
│ │ │ ├── ai-node-validator.test.ts
│ │ │ ├── ai-tool-validators.test.ts
│ │ │ ├── confidence-scorer.test.ts
│ │ │ ├── config-validator-basic.test.ts
│ │ │ ├── config-validator-edge-cases.test.ts
│ │ │ ├── config-validator-node-specific.test.ts
│ │ │ ├── config-validator-security.test.ts
│ │ │ ├── debug-validator.test.ts
│ │ │ ├── enhanced-config-validator-integration.test.ts
│ │ │ ├── enhanced-config-validator-operations.test.ts
│ │ │ ├── enhanced-config-validator.test.ts
│ │ │ ├── example-generator.test.ts
│ │ │ ├── execution-processor.test.ts
│ │ │ ├── expression-format-validator.test.ts
│ │ │ ├── expression-validator-edge-cases.test.ts
│ │ │ ├── expression-validator.test.ts
│ │ │ ├── fixed-collection-validation.test.ts
│ │ │ ├── loop-output-edge-cases.test.ts
│ │ │ ├── n8n-api-client.test.ts
│ │ │ ├── n8n-validation.test.ts
│ │ │ ├── node-similarity-service.test.ts
│ │ │ ├── node-specific-validators.test.ts
│ │ │ ├── operation-similarity-service-comprehensive.test.ts
│ │ │ ├── operation-similarity-service.test.ts
│ │ │ ├── property-dependencies.test.ts
│ │ │ ├── property-filter-edge-cases.test.ts
│ │ │ ├── property-filter.test.ts
│ │ │ ├── resource-similarity-service-comprehensive.test.ts
│ │ │ ├── resource-similarity-service.test.ts
│ │ │ ├── task-templates.test.ts
│ │ │ ├── template-service.test.ts
│ │ │ ├── universal-expression-validator.test.ts
│ │ │ ├── validation-fixes.test.ts
│ │ │ ├── workflow-auto-fixer.test.ts
│ │ │ ├── workflow-diff-engine.test.ts
│ │ │ ├── workflow-fixed-collection-validation.test.ts
│ │ │ ├── workflow-validator-comprehensive.test.ts
│ │ │ ├── workflow-validator-edge-cases.test.ts
│ │ │ ├── workflow-validator-error-outputs.test.ts
│ │ │ ├── workflow-validator-expression-format.test.ts
│ │ │ ├── workflow-validator-loops-simple.test.ts
│ │ │ ├── workflow-validator-loops.test.ts
│ │ │ ├── workflow-validator-mocks.test.ts
│ │ │ ├── workflow-validator-performance.test.ts
│ │ │ ├── workflow-validator-with-mocks.test.ts
│ │ │ └── workflow-validator.test.ts
│ │ ├── telemetry
│ │ │ ├── batch-processor.test.ts
│ │ │ ├── config-manager.test.ts
│ │ │ ├── event-tracker.test.ts
│ │ │ ├── event-validator.test.ts
│ │ │ ├── rate-limiter.test.ts
│ │ │ ├── telemetry-error.test.ts
│ │ │ ├── telemetry-manager.test.ts
│ │ │ ├── v2.18.3-fixes-verification.test.ts
│ │ │ └── workflow-sanitizer.test.ts
│ │ ├── templates
│ │ │ ├── batch-processor.test.ts
│ │ │ ├── metadata-generator.test.ts
│ │ │ ├── template-repository-metadata.test.ts
│ │ │ └── template-repository-security.test.ts
│ │ ├── test-env-example.test.ts
│ │ ├── test-infrastructure.test.ts
│ │ ├── types
│ │ │ ├── instance-context-coverage.test.ts
│ │ │ └── instance-context-multi-tenant.test.ts
│ │ ├── utils
│ │ │ ├── auth-timing-safe.test.ts
│ │ │ ├── cache-utils.test.ts
│ │ │ ├── console-manager.test.ts
│ │ │ ├── database-utils.test.ts
│ │ │ ├── fixed-collection-validator.test.ts
│ │ │ ├── n8n-errors.test.ts
│ │ │ ├── node-type-normalizer.test.ts
│ │ │ ├── node-type-utils.test.ts
│ │ │ ├── node-utils.test.ts
│ │ │ ├── simple-cache-memory-leak-fix.test.ts
│ │ │ ├── ssrf-protection.test.ts
│ │ │ └── template-node-resolver.test.ts
│ │ └── validation-fixes.test.ts
│ └── utils
│ ├── assertions.ts
│ ├── builders
│ │ └── workflow.builder.ts
│ ├── data-generators.ts
│ ├── database-utils.ts
│ ├── README.md
│ └── test-helpers.ts
├── thumbnail.png
├── tsconfig.build.json
├── tsconfig.json
├── types
│ ├── mcp.d.ts
│ └── test-env.d.ts
├── verify-telemetry-fix.js
├── versioned-nodes.md
├── vitest.config.benchmark.ts
├── vitest.config.integration.ts
└── vitest.config.ts
```
# Files
--------------------------------------------------------------------------------
/tests/integration/n8n-api/utils/cleanup-helpers.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Cleanup Helpers for Integration Tests
*
* Provides multi-level cleanup strategies for test resources:
* - Orphaned workflows (from failed test runs)
* - Old executions (older than 24 hours)
* - Bulk cleanup by tag or name prefix
*/
import { getTestN8nClient } from './n8n-client';
import { getN8nCredentials } from './credentials';
import { Logger } from '../../../../src/utils/logger';
const logger = new Logger({ prefix: '[Cleanup]' });
/**
* Clean up orphaned test workflows
*
* Finds and deletes all workflows tagged with the test tag or
* prefixed with the test name prefix. Run this periodically in CI
* to clean up failed test runs.
*
* @returns Array of deleted workflow IDs
*/
export async function cleanupOrphanedWorkflows(): Promise<string[]> {
const creds = getN8nCredentials();
const client = getTestN8nClient();
const deleted: string[] = [];
logger.info('Searching for orphaned test workflows...');
let allWorkflows: any[] = [];
let cursor: string | undefined;
let pageCount = 0;
const MAX_PAGES = 1000; // Safety limit to prevent infinite loops
// Fetch all workflows with pagination
try {
do {
pageCount++;
if (pageCount > MAX_PAGES) {
logger.error(`Exceeded maximum pages (${MAX_PAGES}). Possible infinite loop or API issue.`);
throw new Error('Pagination safety limit exceeded while fetching workflows');
}
logger.debug(`Fetching workflows page ${pageCount}...`);
const response = await client.listWorkflows({
cursor,
limit: 100,
excludePinnedData: true
});
allWorkflows.push(...response.data);
cursor = response.nextCursor || undefined;
} while (cursor);
logger.info(`Found ${allWorkflows.length} total workflows across ${pageCount} page(s)`);
} catch (error) {
logger.error('Failed to fetch workflows:', error);
throw error;
}
// Pre-activated webhook workflow that should NOT be deleted
// This is needed for webhook trigger integration tests
// Note: Single webhook accepts all HTTP methods (GET, POST, PUT, DELETE)
const preservedWorkflowNames = new Set([
'[MCP-TEST] Webhook All Methods'
]);
// Find test workflows but exclude pre-activated webhook workflows
const testWorkflows = allWorkflows.filter(w => {
const isTestWorkflow = w.tags?.includes(creds.cleanup.tag) || w.name?.startsWith(creds.cleanup.namePrefix);
const isPreserved = preservedWorkflowNames.has(w.name);
return isTestWorkflow && !isPreserved;
});
logger.info(`Found ${testWorkflows.length} orphaned test workflow(s) (excluding ${preservedWorkflowNames.size} preserved webhook workflow)`);
if (testWorkflows.length === 0) {
return deleted;
}
// Delete them
for (const workflow of testWorkflows) {
try {
await client.deleteWorkflow(workflow.id);
deleted.push(workflow.id);
logger.debug(`Deleted orphaned workflow: ${workflow.name} (${workflow.id})`);
} catch (error) {
logger.warn(`Failed to delete workflow ${workflow.id}:`, error);
}
}
logger.info(`Successfully deleted ${deleted.length} orphaned workflow(s)`);
return deleted;
}
/**
* Clean up old executions
*
* Deletes executions older than the specified age.
*
* @param maxAgeMs - Maximum age in milliseconds (default: 24 hours)
* @returns Array of deleted execution IDs
*/
export async function cleanupOldExecutions(
maxAgeMs: number = 24 * 60 * 60 * 1000
): Promise<string[]> {
const client = getTestN8nClient();
const deleted: string[] = [];
logger.info(`Searching for executions older than ${maxAgeMs}ms...`);
let allExecutions: any[] = [];
let cursor: string | undefined;
let pageCount = 0;
const MAX_PAGES = 1000; // Safety limit to prevent infinite loops
// Fetch all executions
try {
do {
pageCount++;
if (pageCount > MAX_PAGES) {
logger.error(`Exceeded maximum pages (${MAX_PAGES}). Possible infinite loop or API issue.`);
throw new Error('Pagination safety limit exceeded while fetching executions');
}
logger.debug(`Fetching executions page ${pageCount}...`);
const response = await client.listExecutions({
cursor,
limit: 100,
includeData: false
});
allExecutions.push(...response.data);
cursor = response.nextCursor || undefined;
} while (cursor);
logger.info(`Found ${allExecutions.length} total executions across ${pageCount} page(s)`);
} catch (error) {
logger.error('Failed to fetch executions:', error);
throw error;
}
const cutoffTime = Date.now() - maxAgeMs;
const oldExecutions = allExecutions.filter(e => {
const executionTime = new Date(e.startedAt).getTime();
return executionTime < cutoffTime;
});
logger.info(`Found ${oldExecutions.length} old execution(s)`);
if (oldExecutions.length === 0) {
return deleted;
}
for (const execution of oldExecutions) {
try {
await client.deleteExecution(execution.id);
deleted.push(execution.id);
logger.debug(`Deleted old execution: ${execution.id}`);
} catch (error) {
logger.warn(`Failed to delete execution ${execution.id}:`, error);
}
}
logger.info(`Successfully deleted ${deleted.length} old execution(s)`);
return deleted;
}
/**
* Clean up all test resources
*
* Combines cleanupOrphanedWorkflows and cleanupOldExecutions.
* Use this as a comprehensive cleanup in CI.
*
* @returns Object with counts of deleted resources
*/
export async function cleanupAllTestResources(): Promise<{
workflows: number;
executions: number;
}> {
logger.info('Starting comprehensive test resource cleanup...');
const [workflowIds, executionIds] = await Promise.all([
cleanupOrphanedWorkflows(),
cleanupOldExecutions()
]);
logger.info(
`Cleanup complete: ${workflowIds.length} workflows, ${executionIds.length} executions`
);
return {
workflows: workflowIds.length,
executions: executionIds.length
};
}
/**
* Delete workflows by tag
*
* Deletes all workflows with the specified tag.
*
* @param tag - Tag to match
* @returns Array of deleted workflow IDs
*/
export async function cleanupWorkflowsByTag(tag: string): Promise<string[]> {
const client = getTestN8nClient();
const deleted: string[] = [];
logger.info(`Searching for workflows with tag: ${tag}`);
try {
const response = await client.listWorkflows({
tags: tag || undefined,
limit: 100,
excludePinnedData: true
});
const workflows = response.data;
logger.info(`Found ${workflows.length} workflow(s) with tag: ${tag}`);
for (const workflow of workflows) {
if (!workflow.id) continue;
try {
await client.deleteWorkflow(workflow.id);
deleted.push(workflow.id);
logger.debug(`Deleted workflow: ${workflow.name} (${workflow.id})`);
} catch (error) {
logger.warn(`Failed to delete workflow ${workflow.id}:`, error);
}
}
logger.info(`Successfully deleted ${deleted.length} workflow(s)`);
return deleted;
} catch (error) {
logger.error(`Failed to cleanup workflows by tag: ${tag}`, error);
throw error;
}
}
/**
* Delete executions for a specific workflow
*
* @param workflowId - Workflow ID
* @returns Array of deleted execution IDs
*/
export async function cleanupExecutionsByWorkflow(
workflowId: string
): Promise<string[]> {
const client = getTestN8nClient();
const deleted: string[] = [];
logger.info(`Searching for executions of workflow: ${workflowId}`);
let cursor: string | undefined;
let totalCount = 0;
let pageCount = 0;
const MAX_PAGES = 1000; // Safety limit to prevent infinite loops
try {
do {
pageCount++;
if (pageCount > MAX_PAGES) {
logger.error(`Exceeded maximum pages (${MAX_PAGES}). Possible infinite loop or API issue.`);
throw new Error(`Pagination safety limit exceeded while fetching executions for workflow ${workflowId}`);
}
const response = await client.listExecutions({
workflowId,
cursor,
limit: 100,
includeData: false
});
const executions = response.data;
totalCount += executions.length;
for (const execution of executions) {
try {
await client.deleteExecution(execution.id);
deleted.push(execution.id);
logger.debug(`Deleted execution: ${execution.id}`);
} catch (error) {
logger.warn(`Failed to delete execution ${execution.id}:`, error);
}
}
cursor = response.nextCursor || undefined;
} while (cursor);
logger.info(
`Successfully deleted ${deleted.length}/${totalCount} execution(s) for workflow ${workflowId}`
);
return deleted;
} catch (error) {
logger.error(`Failed to cleanup executions for workflow: ${workflowId}`, error);
throw error;
}
}
```
--------------------------------------------------------------------------------
/tests/unit/docker/serve-command.test.ts:
--------------------------------------------------------------------------------
```typescript
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { execSync } from 'child_process';
import fs from 'fs';
import path from 'path';
import os from 'os';
describe('n8n-mcp serve Command', () => {
let tempDir: string;
let mockEntrypointPath: string;
// Clean environment for tests - only include essential variables
const cleanEnv = {
PATH: process.env.PATH,
HOME: process.env.HOME,
NODE_ENV: process.env.NODE_ENV
};
beforeEach(() => {
tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'serve-command-test-'));
mockEntrypointPath = path.join(tempDir, 'mock-entrypoint.sh');
});
afterEach(() => {
if (fs.existsSync(tempDir)) {
fs.rmSync(tempDir, { recursive: true });
}
});
/**
* Create a mock entrypoint script that simulates the behavior
* of the real docker-entrypoint.sh for testing purposes
*/
function createMockEntrypoint(content: string): void {
fs.writeFileSync(mockEntrypointPath, content, { mode: 0o755 });
}
describe('Command transformation', () => {
it('should detect "n8n-mcp serve" and set MCP_MODE=http', () => {
const mockScript = `#!/bin/sh
# Simplified version of the entrypoint logic
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
echo "MCP_MODE=\$MCP_MODE"
echo "Remaining args: \$@"
else
echo "Normal execution"
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(`"${mockEntrypointPath}" n8n-mcp serve`, { encoding: 'utf8', env: cleanEnv });
expect(output).toContain('MCP_MODE=http');
expect(output).toContain('Remaining args:');
});
it('should preserve additional arguments after serve command', () => {
const mockScript = `#!/bin/sh
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
echo "MCP_MODE=\$MCP_MODE"
echo "Args: \$@"
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(
`"${mockEntrypointPath}" n8n-mcp serve --port 8080 --verbose --debug`,
{ encoding: 'utf8', env: cleanEnv }
);
expect(output).toContain('MCP_MODE=http');
expect(output).toContain('Args: --port 8080 --verbose --debug');
});
it('should not affect other commands', () => {
const mockScript = `#!/bin/sh
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
echo "Serve mode activated"
else
echo "Command: \$@"
echo "MCP_MODE=\${MCP_MODE:-not-set}"
fi
`;
createMockEntrypoint(mockScript);
// Test with different command
const output1 = execSync(`"${mockEntrypointPath}" node index.js`, { encoding: 'utf8', env: cleanEnv });
expect(output1).toContain('Command: node index.js');
expect(output1).toContain('MCP_MODE=not-set');
// Test with n8n-mcp but not serve
const output2 = execSync(`"${mockEntrypointPath}" n8n-mcp validate`, { encoding: 'utf8', env: cleanEnv });
expect(output2).toContain('Command: n8n-mcp validate');
expect(output2).not.toContain('Serve mode activated');
});
});
describe('Integration with config loading', () => {
it('should load config before processing serve command', () => {
const configPath = path.join(tempDir, 'config.json');
const config = {
custom_var: 'from-config',
port: 9000
};
fs.writeFileSync(configPath, JSON.stringify(config));
const mockScript = `#!/bin/sh
# Simulate config loading
if [ -f "${configPath}" ]; then
export CUSTOM_VAR='from-config'
export PORT='9000'
fi
# Process serve command
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
echo "MCP_MODE=\$MCP_MODE"
echo "CUSTOM_VAR=\$CUSTOM_VAR"
echo "PORT=\$PORT"
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(`"${mockEntrypointPath}" n8n-mcp serve`, { encoding: 'utf8', env: cleanEnv });
expect(output).toContain('MCP_MODE=http');
expect(output).toContain('CUSTOM_VAR=from-config');
expect(output).toContain('PORT=9000');
});
});
describe('Command line variations', () => {
it('should handle serve command with equals sign notation', () => {
const mockScript = `#!/bin/sh
# Handle both space and equals notation
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
echo "Standard notation worked"
echo "Args: \$@"
elif echo "\$@" | grep -q "n8n-mcp.*serve"; then
echo "Alternative notation detected"
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(`"${mockEntrypointPath}" n8n-mcp serve --port=8080`, { encoding: 'utf8', env: cleanEnv });
expect(output).toContain('Standard notation worked');
expect(output).toContain('Args: --port=8080');
});
it('should handle quoted arguments correctly', () => {
const mockScript = `#!/bin/sh
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
shift 2
echo "Args received:"
for arg in "\$@"; do
echo " - '\$arg'"
done
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(
`"${mockEntrypointPath}" n8n-mcp serve --message "Hello World" --path "/path with spaces"`,
{ encoding: 'utf8', env: cleanEnv }
);
expect(output).toContain("- '--message'");
expect(output).toContain("- 'Hello World'");
expect(output).toContain("- '--path'");
expect(output).toContain("- '/path with spaces'");
});
});
describe('Error handling', () => {
it('should handle serve command with missing AUTH_TOKEN in HTTP mode', () => {
const mockScript = `#!/bin/sh
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
# Check for AUTH_TOKEN (simulate entrypoint validation)
if [ -z "\$AUTH_TOKEN" ] && [ -z "\$AUTH_TOKEN_FILE" ]; then
echo "ERROR: AUTH_TOKEN or AUTH_TOKEN_FILE is required for HTTP mode" >&2
exit 1
fi
fi
`;
createMockEntrypoint(mockScript);
try {
execSync(`"${mockEntrypointPath}" n8n-mcp serve`, { encoding: 'utf8', env: cleanEnv });
expect.fail('Should have thrown an error');
} catch (error: any) {
expect(error.status).toBe(1);
expect(error.stderr.toString()).toContain('AUTH_TOKEN or AUTH_TOKEN_FILE is required');
}
});
it('should succeed with AUTH_TOKEN provided', () => {
const mockScript = `#!/bin/sh
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
# Check for AUTH_TOKEN
if [ -z "\$AUTH_TOKEN" ] && [ -z "\$AUTH_TOKEN_FILE" ]; then
echo "ERROR: AUTH_TOKEN or AUTH_TOKEN_FILE is required for HTTP mode" >&2
exit 1
fi
echo "Server starting with AUTH_TOKEN"
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(
`"${mockEntrypointPath}" n8n-mcp serve`,
{ encoding: 'utf8', env: { ...cleanEnv, AUTH_TOKEN: 'test-token' } }
);
expect(output).toContain('Server starting with AUTH_TOKEN');
});
});
describe('Backwards compatibility', () => {
it('should maintain compatibility with direct HTTP mode setting', () => {
const mockScript = `#!/bin/sh
# Direct MCP_MODE setting should still work
echo "Initial MCP_MODE=\${MCP_MODE:-not-set}"
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
echo "Serve command: MCP_MODE=\$MCP_MODE"
else
echo "Direct mode: MCP_MODE=\${MCP_MODE:-stdio}"
fi
`;
createMockEntrypoint(mockScript);
// Test with explicit MCP_MODE
const output1 = execSync(
`"${mockEntrypointPath}" node index.js`,
{ encoding: 'utf8', env: { ...cleanEnv, MCP_MODE: 'http' } }
);
expect(output1).toContain('Initial MCP_MODE=http');
expect(output1).toContain('Direct mode: MCP_MODE=http');
// Test with serve command
const output2 = execSync(`"${mockEntrypointPath}" n8n-mcp serve`, { encoding: 'utf8', env: cleanEnv });
expect(output2).toContain('Serve command: MCP_MODE=http');
});
});
describe('Command construction', () => {
it('should properly construct the node command after transformation', () => {
const mockScript = `#!/bin/sh
if [ "\$1" = "n8n-mcp" ] && [ "\$2" = "serve" ]; then
export MCP_MODE="http"
shift 2
# Simulate the actual command that would be executed
echo "Would execute: node /app/dist/mcp/index.js \$@"
fi
`;
createMockEntrypoint(mockScript);
const output = execSync(
`"${mockEntrypointPath}" n8n-mcp serve --port 8080 --host 0.0.0.0`,
{ encoding: 'utf8', env: cleanEnv }
);
expect(output).toContain('Would execute: node /app/dist/mcp/index.js --port 8080 --host 0.0.0.0');
});
});
});
```
--------------------------------------------------------------------------------
/docs/AUTOMATED_RELEASES.md:
--------------------------------------------------------------------------------
```markdown
# Automated Release Process
This document describes the automated release system for n8n-mcp, which handles version detection, changelog parsing, and multi-artifact publishing.
## Overview
The automated release system is triggered when the version in `package.json` is updated and pushed to the main branch. It handles:
- 🏷️ **GitHub Releases**: Creates releases with changelog content
- 📦 **NPM Publishing**: Publishes optimized runtime package
- 🐳 **Docker Images**: Builds and pushes multi-platform images
- 📚 **Documentation**: Updates version badges automatically
## Quick Start
### For Maintainers
Use the prepared release script for a guided experience:
```bash
npm run prepare:release
```
This script will:
1. Prompt for the new version
2. Update `package.json` and `package.runtime.json`
3. Update the changelog
4. Run tests and build
5. Create a git commit
6. Optionally push to trigger the release
### Manual Process
1. **Update the version**:
```bash
# Edit package.json version field
vim package.json
# Sync to runtime package
npm run sync:runtime-version
```
2. **Update the changelog**:
```bash
# Edit docs/CHANGELOG.md
vim docs/CHANGELOG.md
```
3. **Test and commit**:
```bash
# Ensure everything works
npm test
npm run build
npm run rebuild
# Commit changes
git add package.json package.runtime.json docs/CHANGELOG.md
git commit -m "chore: release vX.Y.Z"
git push
```
## Workflow Details
### Version Detection
The workflow monitors pushes to the main branch and detects when `package.json` version changes:
```yaml
paths:
- 'package.json'
- 'package.runtime.json'
```
### Changelog Parsing
Automatically extracts release notes from `docs/CHANGELOG.md` using the version header format:
```markdown
## [2.10.0] - 2025-08-02
### Added
- New feature descriptions
### Changed
- Changed feature descriptions
### Fixed
- Bug fix descriptions
```
### Release Artifacts
#### GitHub Release
- Created with extracted changelog content
- Tagged with `vX.Y.Z` format
- Includes installation instructions
- Links to documentation
#### NPM Package
- Published as `n8n-mcp` on npmjs.com
- Uses runtime-only dependencies (8 packages vs 50+ dev deps)
- Optimized for `npx` usage
- ~50MB vs 1GB+ with dev dependencies
#### Docker Images
- **Standard**: `ghcr.io/czlonkowski/n8n-mcp:vX.Y.Z`
- **Railway**: `ghcr.io/czlonkowski/n8n-mcp-railway:vX.Y.Z`
- Multi-platform: linux/amd64, linux/arm64
- Semantic version tags: `vX.Y.Z`, `vX.Y`, `vX`, `latest`
## Configuration
### Required Secrets
Set these in GitHub repository settings → Secrets:
| Secret | Description | Required |
|--------|-------------|----------|
| `NPM_TOKEN` | NPM authentication token for publishing | ✅ Yes |
| `GITHUB_TOKEN` | Automatically provided by GitHub Actions | ✅ Auto |
### NPM Token Setup
1. Login to [npmjs.com](https://www.npmjs.com)
2. Go to Account Settings → Access Tokens
3. Create a new **Automation** token
4. Add as `NPM_TOKEN` secret in GitHub
## Testing
### Test Release Automation
Validate the release system without triggering a release:
```bash
npm run test:release-automation
```
This checks:
- ✅ File existence and structure
- ✅ Version detection logic
- ✅ Changelog parsing
- ✅ Build process
- ✅ NPM package preparation
- ✅ Docker configuration
- ✅ Workflow syntax
- ✅ Environment setup
### Local Testing
Test individual components:
```bash
# Test version detection
node -e "console.log(require('./package.json').version)"
# Test changelog parsing
node scripts/test-release-automation.js
# Test npm package preparation
npm run prepare:publish
# Test Docker build
docker build -t test-image .
```
## Workflow Jobs
### 1. Version Detection
- Compares current vs previous version in git history
- Determines if it's a prerelease (alpha, beta, rc, dev)
- Outputs version information for other jobs
### 2. Changelog Extraction
- Parses `docs/CHANGELOG.md` for the current version
- Extracts content between version headers
- Provides formatted release notes
### 3. GitHub Release Creation
- Creates annotated git tag
- Creates GitHub release with changelog content
- Handles prerelease flag for alpha/beta versions
### 4. Build and Test
- Installs dependencies
- Runs full test suite
- Builds TypeScript
- Rebuilds node database
- Type checking
### 5. NPM Publishing
- Prepares optimized package structure
- Uses `package.runtime.json` for dependencies
- Publishes to npmjs.com registry
- Automatic cleanup
### 6. Docker Building
- Multi-platform builds (amd64, arm64)
- Two image variants (standard, railway)
- Semantic versioning tags
- GitHub Container Registry
### 7. Documentation Updates
- Updates version badges in README
- Commits documentation changes
- Automatic push back to repository
## Monitoring
### GitHub Actions
Monitor releases at: https://github.com/czlonkowski/n8n-mcp/actions
### Release Status
- **GitHub Releases**: https://github.com/czlonkowski/n8n-mcp/releases
- **NPM Package**: https://www.npmjs.com/package/n8n-mcp
- **Docker Images**: https://github.com/czlonkowski/n8n-mcp/pkgs/container/n8n-mcp
### Notifications
The workflow provides comprehensive summaries:
- ✅ Success notifications with links
- ❌ Failure notifications with error details
- 📊 Artifact information and installation commands
## Troubleshooting
### Common Issues
#### NPM Publishing Fails
```
Error: 401 Unauthorized
```
**Solution**: Check NPM_TOKEN secret is valid and has publishing permissions.
#### Docker Build Fails
```
Error: failed to solve: could not read from registry
```
**Solution**: Check GitHub Container Registry permissions and GITHUB_TOKEN.
#### Changelog Parsing Fails
```
No changelog entries found for version X.Y.Z
```
**Solution**: Ensure changelog follows the correct format:
```markdown
## [X.Y.Z] - YYYY-MM-DD
```
#### Version Detection Fails
```
Version not incremented
```
**Solution**: Ensure new version is greater than the previous version.
### Recovery Steps
#### Failed NPM Publish
1. Check if version was already published
2. If not, manually publish:
```bash
npm run prepare:publish
cd npm-publish-temp
npm publish
```
#### Failed Docker Build
1. Build locally to test:
```bash
docker build -t test-build .
```
2. Re-trigger workflow or push a fix
#### Incomplete Release
1. Delete the created tag if needed:
```bash
git tag -d vX.Y.Z
git push --delete origin vX.Y.Z
```
2. Fix issues and push again
## Security
### Secrets Management
- NPM_TOKEN has limited scope (publish only)
- GITHUB_TOKEN has automatic scoping
- No secrets are logged or exposed
### Package Security
- Runtime package excludes development dependencies
- No build tools or test frameworks in published package
- Minimal attack surface (~50MB vs 1GB+)
### Docker Security
- Multi-stage builds
- Non-root user execution
- Minimal base images
- Security scanning enabled
## Changelog Format
The automated system expects changelog entries in [Keep a Changelog](https://keepachangelog.com/) format:
```markdown
# Changelog
All notable changes to this project will be documented in this file.
## [Unreleased]
### Added
- New features for next release
## [2.10.0] - 2025-08-02
### Added
- Automated release system
- Multi-platform Docker builds
### Changed
- Improved version detection
- Enhanced error handling
### Fixed
- Fixed changelog parsing edge cases
- Fixed Docker build optimization
## [2.9.1] - 2025-08-01
...
```
## Version Strategy
### Semantic Versioning
- **MAJOR** (X.0.0): Breaking changes
- **MINOR** (X.Y.0): New features, backward compatible
- **PATCH** (X.Y.Z): Bug fixes, backward compatible
### Prerelease Versions
- **Alpha**: `X.Y.Z-alpha.N` - Early development
- **Beta**: `X.Y.Z-beta.N` - Feature complete, testing
- **RC**: `X.Y.Z-rc.N` - Release candidate
Prerelease versions are automatically detected and marked appropriately.
## Best Practices
### Before Releasing
1. ✅ Run `npm run test:release-automation`
2. ✅ Update changelog with meaningful descriptions
3. ✅ Test locally with `npm test && npm run build`
4. ✅ Review breaking changes
5. ✅ Consider impact on users
### Version Bumping
- Use `npm run prepare:release` for guided process
- Follow semantic versioning strictly
- Document breaking changes clearly
- Consider backward compatibility
### Changelog Writing
- Be specific about changes
- Include migration notes for breaking changes
- Credit contributors
- Use consistent formatting
## Contributing
### For Maintainers
1. Use automated tools: `npm run prepare:release`
2. Follow semantic versioning
3. Update changelog thoroughly
4. Test before releasing
### For Contributors
- Breaking changes require MAJOR version bump
- New features require MINOR version bump
- Bug fixes require PATCH version bump
- Update changelog in PR descriptions
---
🤖 *This automated release system was designed with [Claude Code](https://claude.ai/code)*
```
--------------------------------------------------------------------------------
/tests/integration/workflow-creation-node-type-format.test.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Integration test for workflow creation with node type format validation
*
* This test validates that workflows are correctly validated with FULL form node types
* (n8n-nodes-base.*) as required by the n8n API, without normalization to SHORT form.
*
* Background: Bug in handlers-n8n-manager.ts was normalizing node types to SHORT form
* (nodes-base.*) before validation, causing validation to reject all workflows.
*/
import { describe, it, expect } from 'vitest';
import { validateWorkflowStructure } from '@/services/n8n-validation';
describe('Workflow Creation Node Type Format (Integration)', () => {
describe('validateWorkflowStructure with FULL form node types', () => {
it('should accept workflows with FULL form node types (n8n-nodes-base.*)', () => {
const workflow = {
name: 'Test Workflow',
nodes: [
{
id: 'manual-1',
name: 'Manual Trigger',
type: 'n8n-nodes-base.manualTrigger', // FULL form
typeVersion: 1,
position: [250, 300] as [number, number],
parameters: {}
},
{
id: 'set-1',
name: 'Set Data',
type: 'n8n-nodes-base.set', // FULL form
typeVersion: 3.4,
position: [450, 300] as [number, number],
parameters: {
mode: 'manual',
assignments: {
assignments: [{
id: '1',
name: 'test',
value: 'hello',
type: 'string'
}]
}
}
}
],
connections: {
'Manual Trigger': {
main: [[{
node: 'Set Data',
type: 'main',
index: 0
}]]
}
}
};
const errors = validateWorkflowStructure(workflow);
expect(errors).toEqual([]);
});
it('should reject workflows with SHORT form node types (nodes-base.*)', () => {
const workflow = {
name: 'Test Workflow',
nodes: [
{
id: 'manual-1',
name: 'Manual Trigger',
type: 'nodes-base.manualTrigger', // SHORT form - should be rejected
typeVersion: 1,
position: [250, 300] as [number, number],
parameters: {}
}
],
connections: {}
};
const errors = validateWorkflowStructure(workflow);
expect(errors.length).toBeGreaterThan(0);
expect(errors.some(e =>
e.includes('Invalid node type "nodes-base.manualTrigger"') &&
e.includes('Use "n8n-nodes-base.manualTrigger" instead')
)).toBe(true);
});
it('should accept workflows with LangChain nodes in FULL form', () => {
const workflow = {
name: 'AI Workflow',
nodes: [
{
id: 'manual-1',
name: 'Manual Trigger',
type: 'n8n-nodes-base.manualTrigger',
typeVersion: 1,
position: [250, 300] as [number, number],
parameters: {}
},
{
id: 'agent-1',
name: 'AI Agent',
type: '@n8n/n8n-nodes-langchain.agent', // FULL form
typeVersion: 1,
position: [450, 300] as [number, number],
parameters: {}
}
],
connections: {
'Manual Trigger': {
main: [[{
node: 'AI Agent',
type: 'main',
index: 0
}]]
}
}
};
const errors = validateWorkflowStructure(workflow);
// Should accept FULL form LangChain nodes
// Note: May have other validation errors (missing parameters), but NOT node type errors
const hasNodeTypeError = errors.some(e =>
e.includes('Invalid node type') && e.includes('@n8n/n8n-nodes-langchain.agent')
);
expect(hasNodeTypeError).toBe(false);
});
it('should reject node types without package prefix', () => {
const workflow = {
name: 'Invalid Workflow',
nodes: [
{
id: 'node-1',
name: 'Invalid Node',
type: 'webhook', // No package prefix
typeVersion: 1,
position: [250, 300] as [number, number],
parameters: {}
}
],
connections: {}
};
const errors = validateWorkflowStructure(workflow);
expect(errors.length).toBeGreaterThan(0);
expect(errors.some(e =>
e.includes('Invalid node type "webhook"') &&
e.includes('must include package prefix')
)).toBe(true);
});
});
describe('Real-world workflow examples', () => {
it('should validate webhook workflow correctly', () => {
const workflow = {
name: 'Webhook to HTTP',
nodes: [
{
id: 'webhook-1',
name: 'Webhook',
type: 'n8n-nodes-base.webhook',
typeVersion: 2,
position: [250, 300] as [number, number],
parameters: {
path: 'test-webhook',
httpMethod: 'POST',
responseMode: 'onReceived'
}
},
{
id: 'http-1',
name: 'HTTP Request',
type: 'n8n-nodes-base.httpRequest',
typeVersion: 4.2,
position: [450, 300] as [number, number],
parameters: {
method: 'POST',
url: 'https://example.com/api',
sendBody: true,
bodyParameters: {
parameters: []
}
}
}
],
connections: {
'Webhook': {
main: [[{
node: 'HTTP Request',
type: 'main',
index: 0
}]]
}
}
};
const errors = validateWorkflowStructure(workflow);
expect(errors).toEqual([]);
});
it('should validate schedule trigger workflow correctly', () => {
const workflow = {
name: 'Daily Report',
nodes: [
{
id: 'schedule-1',
name: 'Schedule Trigger',
type: 'n8n-nodes-base.scheduleTrigger',
typeVersion: 1.2,
position: [250, 300] as [number, number],
parameters: {
rule: {
interval: [{
field: 'days',
daysInterval: 1
}]
}
}
},
{
id: 'set-1',
name: 'Set',
type: 'n8n-nodes-base.set',
typeVersion: 3.4,
position: [450, 300] as [number, number],
parameters: {
mode: 'manual',
assignments: {
assignments: []
}
}
}
],
connections: {
'Schedule Trigger': {
main: [[{
node: 'Set',
type: 'main',
index: 0
}]]
}
}
};
const errors = validateWorkflowStructure(workflow);
expect(errors).toEqual([]);
});
});
describe('Regression test for normalization bug', () => {
it('should NOT normalize node types before validation', () => {
// This test ensures that handleCreateWorkflow does NOT call
// NodeTypeNormalizer.normalizeWorkflowNodeTypes() before validation
const fullFormWorkflow = {
name: 'Test',
nodes: [
{
id: '1',
name: 'Manual Trigger',
type: 'n8n-nodes-base.manualTrigger',
typeVersion: 1,
position: [0, 0] as [number, number],
parameters: {}
},
{
id: '2',
name: 'Set',
type: 'n8n-nodes-base.set',
typeVersion: 3.4,
position: [200, 0] as [number, number],
parameters: {
mode: 'manual',
assignments: { assignments: [] }
}
}
],
connections: {
'Manual Trigger': {
main: [[{ node: 'Set', type: 'main', index: 0 }]]
}
}
};
const errors = validateWorkflowStructure(fullFormWorkflow);
// FULL form should pass validation
expect(errors).toEqual([]);
// SHORT form (what normalizer produces) should FAIL validation
const shortFormWorkflow = {
...fullFormWorkflow,
nodes: fullFormWorkflow.nodes.map(node => ({
...node,
type: node.type.replace('n8n-nodes-base.', 'nodes-base.') // Convert to SHORT form
}))
};
const shortFormErrors = validateWorkflowStructure(shortFormWorkflow);
expect(shortFormErrors.length).toBeGreaterThan(0);
expect(shortFormErrors.some(e =>
e.includes('Invalid node type') &&
e.includes('nodes-base.')
)).toBe(true);
});
});
});
```
--------------------------------------------------------------------------------
/src/scripts/rebuild.ts:
--------------------------------------------------------------------------------
```typescript
#!/usr/bin/env node
/**
* Copyright (c) 2024 AiAdvisors Romuald Czlonkowski
* Licensed under the Sustainable Use License v1.0
*/
import { createDatabaseAdapter } from '../database/database-adapter';
import { N8nNodeLoader } from '../loaders/node-loader';
import { NodeParser, ParsedNode } from '../parsers/node-parser';
import { DocsMapper } from '../mappers/docs-mapper';
import { NodeRepository } from '../database/node-repository';
import { TemplateSanitizer } from '../utils/template-sanitizer';
import * as fs from 'fs';
import * as path from 'path';
async function rebuild() {
console.log('🔄 Rebuilding n8n node database...\n');
const dbPath = process.env.NODE_DB_PATH || './data/nodes.db';
const db = await createDatabaseAdapter(dbPath);
const loader = new N8nNodeLoader();
const parser = new NodeParser();
const mapper = new DocsMapper();
const repository = new NodeRepository(db);
// Initialize database
const schema = fs.readFileSync(path.join(__dirname, '../../src/database/schema.sql'), 'utf8');
db.exec(schema);
// Clear existing data
db.exec('DELETE FROM nodes');
console.log('🗑️ Cleared existing data\n');
// Load all nodes
const nodes = await loader.loadAllNodes();
console.log(`📦 Loaded ${nodes.length} nodes from packages\n`);
// Statistics
const stats = {
successful: 0,
failed: 0,
aiTools: 0,
triggers: 0,
webhooks: 0,
withProperties: 0,
withOperations: 0,
withDocs: 0
};
// Process each node (documentation fetching must be outside transaction due to async)
console.log('🔄 Processing nodes...');
const processedNodes: Array<{ parsed: ParsedNode; docs: string | undefined; nodeName: string }> = [];
for (const { packageName, nodeName, NodeClass } of nodes) {
try {
// Parse node
const parsed = parser.parse(NodeClass, packageName);
// Validate parsed data
if (!parsed.nodeType || !parsed.displayName) {
throw new Error(`Missing required fields - nodeType: ${parsed.nodeType}, displayName: ${parsed.displayName}, packageName: ${parsed.packageName}`);
}
// Additional validation for required fields
if (!parsed.packageName) {
throw new Error(`Missing packageName for node ${nodeName}`);
}
// Get documentation
const docs = await mapper.fetchDocumentation(parsed.nodeType);
parsed.documentation = docs || undefined;
processedNodes.push({ parsed, docs: docs || undefined, nodeName });
} catch (error) {
stats.failed++;
const errorMessage = (error as Error).message;
console.error(`❌ Failed to process ${nodeName}: ${errorMessage}`);
}
}
// Now save all processed nodes to database
console.log(`\n💾 Saving ${processedNodes.length} processed nodes to database...`);
let saved = 0;
for (const { parsed, docs, nodeName } of processedNodes) {
try {
repository.saveNode(parsed);
saved++;
// Update statistics
stats.successful++;
if (parsed.isAITool) stats.aiTools++;
if (parsed.isTrigger) stats.triggers++;
if (parsed.isWebhook) stats.webhooks++;
if (parsed.properties.length > 0) stats.withProperties++;
if (parsed.operations.length > 0) stats.withOperations++;
if (docs) stats.withDocs++;
console.log(`✅ ${parsed.nodeType} [Props: ${parsed.properties.length}, Ops: ${parsed.operations.length}]`);
} catch (error) {
stats.failed++;
const errorMessage = (error as Error).message;
console.error(`❌ Failed to save ${nodeName}: ${errorMessage}`);
}
}
console.log(`💾 Save completed: ${saved} nodes saved successfully`);
// Validation check
console.log('\n🔍 Running validation checks...');
try {
const validationResults = validateDatabase(repository);
if (!validationResults.passed) {
console.log('⚠️ Validation Issues:');
validationResults.issues.forEach(issue => console.log(` - ${issue}`));
} else {
console.log('✅ All validation checks passed');
}
} catch (validationError) {
console.error('❌ Validation failed:', (validationError as Error).message);
console.log('⚠️ Skipping validation due to database compatibility issues');
}
// Summary
console.log('\n📊 Summary:');
console.log(` Total nodes: ${nodes.length}`);
console.log(` Successful: ${stats.successful}`);
console.log(` Failed: ${stats.failed}`);
console.log(` AI Tools: ${stats.aiTools}`);
console.log(` Triggers: ${stats.triggers}`);
console.log(` Webhooks: ${stats.webhooks}`);
console.log(` With Properties: ${stats.withProperties}`);
console.log(` With Operations: ${stats.withOperations}`);
console.log(` With Documentation: ${stats.withDocs}`);
// Sanitize templates if they exist
console.log('\n🧹 Checking for templates to sanitize...');
const templateCount = db.prepare('SELECT COUNT(*) as count FROM templates').get() as { count: number };
if (templateCount && templateCount.count > 0) {
console.log(` Found ${templateCount.count} templates, sanitizing...`);
const sanitizer = new TemplateSanitizer();
let sanitizedCount = 0;
const templates = db.prepare('SELECT id, name, workflow_json FROM templates').all() as any[];
for (const template of templates) {
const originalWorkflow = JSON.parse(template.workflow_json);
const { sanitized: sanitizedWorkflow, wasModified } = sanitizer.sanitizeWorkflow(originalWorkflow);
if (wasModified) {
const stmt = db.prepare('UPDATE templates SET workflow_json = ? WHERE id = ?');
stmt.run(JSON.stringify(sanitizedWorkflow), template.id);
sanitizedCount++;
console.log(` ✅ Sanitized template ${template.id}: ${template.name}`);
}
}
console.log(` Sanitization complete: ${sanitizedCount} templates cleaned`);
} else {
console.log(' No templates found in database');
}
console.log('\n✨ Rebuild complete!');
db.close();
}
function validateDatabase(repository: NodeRepository): { passed: boolean; issues: string[] } {
const issues = [];
try {
const db = (repository as any).db;
// CRITICAL: Check if database has any nodes at all
const nodeCount = db.prepare('SELECT COUNT(*) as count FROM nodes').get() as { count: number };
if (nodeCount.count === 0) {
issues.push('CRITICAL: Database is empty - no nodes found! Rebuild failed or was interrupted.');
return { passed: false, issues };
}
// Check minimum expected node count (should have at least 500 nodes from both packages)
if (nodeCount.count < 500) {
issues.push(`WARNING: Only ${nodeCount.count} nodes found - expected at least 500 (both n8n packages)`);
}
// Check critical nodes
const criticalNodes = ['nodes-base.httpRequest', 'nodes-base.code', 'nodes-base.webhook', 'nodes-base.slack'];
for (const nodeType of criticalNodes) {
const node = repository.getNode(nodeType);
if (!node) {
issues.push(`Critical node ${nodeType} not found`);
continue;
}
if (node.properties.length === 0) {
issues.push(`Node ${nodeType} has no properties`);
}
}
// Check AI tools
const aiTools = repository.getAITools();
if (aiTools.length === 0) {
issues.push('No AI tools found - check detection logic');
}
// Check FTS5 table existence and population
const ftsTableCheck = db.prepare(`
SELECT name FROM sqlite_master
WHERE type='table' AND name='nodes_fts'
`).get();
if (!ftsTableCheck) {
issues.push('CRITICAL: FTS5 table (nodes_fts) does not exist - searches will fail or be very slow');
} else {
// Check if FTS5 table is properly populated
const ftsCount = db.prepare('SELECT COUNT(*) as count FROM nodes_fts').get() as { count: number };
if (ftsCount.count === 0) {
issues.push('CRITICAL: FTS5 index is empty - searches will return zero results');
} else if (nodeCount.count !== ftsCount.count) {
issues.push(`FTS5 index out of sync: ${nodeCount.count} nodes but ${ftsCount.count} FTS5 entries`);
}
// Verify critical nodes are searchable via FTS5
const searchableNodes = ['webhook', 'merge', 'split'];
for (const searchTerm of searchableNodes) {
const searchResult = db.prepare(`
SELECT COUNT(*) as count FROM nodes_fts
WHERE nodes_fts MATCH ?
`).get(searchTerm);
if (searchResult.count === 0) {
issues.push(`CRITICAL: Search for "${searchTerm}" returns zero results in FTS5 index`);
}
}
}
} catch (error) {
// Catch any validation errors
const errorMessage = (error as Error).message;
issues.push(`Validation error: ${errorMessage}`);
}
return {
passed: issues.length === 0,
issues
};
}
// Run if called directly
if (require.main === module) {
rebuild().catch(console.error);
}
```
--------------------------------------------------------------------------------
/scripts/update-n8n-deps.js:
--------------------------------------------------------------------------------
```javascript
#!/usr/bin/env node
/**
* Update n8n dependencies to latest versions
* Can be run manually or via GitHub Actions
*/
const { execSync } = require('child_process');
const fs = require('fs');
const path = require('path');
class N8nDependencyUpdater {
constructor() {
this.packageJsonPath = path.join(__dirname, '..', 'package.json');
// Only track the main n8n package - let it manage its own dependencies
this.mainPackage = 'n8n';
}
/**
* Get latest version of a package from npm
*/
getLatestVersion(packageName) {
try {
const output = execSync(`npm view ${packageName} version`, { encoding: 'utf8' });
return output.trim();
} catch (error) {
console.error(`Failed to get version for ${packageName}:`, error.message);
return null;
}
}
/**
* Get dependencies of a specific n8n version
*/
getN8nDependencies(n8nVersion) {
try {
const output = execSync(`npm view n8n@${n8nVersion} dependencies --json`, { encoding: 'utf8' });
return JSON.parse(output);
} catch (error) {
console.error(`Failed to get dependencies for n8n@${n8nVersion}:`, error.message);
return {};
}
}
/**
* Get current version from package.json
*/
getCurrentVersion(packageName) {
const packageJson = JSON.parse(fs.readFileSync(this.packageJsonPath, 'utf8'));
const version = packageJson.dependencies[packageName];
return version ? version.replace(/^[\^~]/, '') : null;
}
/**
* Check which packages need updates
*/
async checkForUpdates() {
console.log('🔍 Checking for n8n dependency updates...\n');
const updates = [];
// First check the main n8n package
const currentN8nVersion = this.getCurrentVersion('n8n');
const latestN8nVersion = this.getLatestVersion('n8n');
if (!currentN8nVersion || !latestN8nVersion) {
console.error('Failed to check n8n version');
return updates;
}
if (currentN8nVersion !== latestN8nVersion) {
console.log(`📦 n8n: ${currentN8nVersion} → ${latestN8nVersion} (update available)`);
// Get the dependencies that n8n requires
const n8nDeps = this.getN8nDependencies(latestN8nVersion);
// Add main n8n update
updates.push({
package: 'n8n',
current: currentN8nVersion,
latest: latestN8nVersion
});
// Check our tracked dependencies that n8n uses
const trackedDeps = ['n8n-core', 'n8n-workflow', '@n8n/n8n-nodes-langchain'];
for (const dep of trackedDeps) {
const currentVersion = this.getCurrentVersion(dep);
const requiredVersion = n8nDeps[dep];
if (requiredVersion && currentVersion) {
// Extract version from npm dependency format (e.g., "^1.2.3" -> "1.2.3")
const cleanRequiredVersion = requiredVersion.replace(/^[\^~>=<]/, '').split(' ')[0];
if (currentVersion !== cleanRequiredVersion) {
updates.push({
package: dep,
current: currentVersion,
latest: cleanRequiredVersion,
reason: `Required by n8n@${latestN8nVersion}`
});
console.log(`📦 ${dep}: ${currentVersion} → ${cleanRequiredVersion} (required by n8n)`);
} else {
console.log(`✅ ${dep}: ${currentVersion} (compatible with n8n@${latestN8nVersion})`);
}
}
}
} else {
console.log(`✅ n8n: ${currentN8nVersion} (up to date)`);
// Even if n8n is up to date, check if our dependencies match what n8n expects
const n8nDeps = this.getN8nDependencies(currentN8nVersion);
const trackedDeps = ['n8n-core', 'n8n-workflow', '@n8n/n8n-nodes-langchain'];
for (const dep of trackedDeps) {
const currentVersion = this.getCurrentVersion(dep);
const requiredVersion = n8nDeps[dep];
if (requiredVersion && currentVersion) {
const cleanRequiredVersion = requiredVersion.replace(/^[\^~>=<]/, '').split(' ')[0];
if (currentVersion !== cleanRequiredVersion) {
updates.push({
package: dep,
current: currentVersion,
latest: cleanRequiredVersion,
reason: `Required by n8n@${currentN8nVersion}`
});
console.log(`📦 ${dep}: ${currentVersion} → ${cleanRequiredVersion} (sync with n8n)`);
} else {
console.log(`✅ ${dep}: ${currentVersion} (in sync)`);
}
}
}
}
return updates;
}
/**
* Update package.json with new versions
*/
updatePackageJson(updates) {
if (updates.length === 0) {
console.log('\n✨ All n8n dependencies are up to date and in sync!');
return false;
}
console.log(`\n📝 Updating ${updates.length} packages in package.json...`);
const packageJson = JSON.parse(fs.readFileSync(this.packageJsonPath, 'utf8'));
for (const update of updates) {
packageJson.dependencies[update.package] = `^${update.latest}`;
console.log(` Updated ${update.package} to ^${update.latest}${update.reason ? ` (${update.reason})` : ''}`);
}
fs.writeFileSync(
this.packageJsonPath,
JSON.stringify(packageJson, null, 2) + '\n',
'utf8'
);
return true;
}
/**
* Run npm install to update lock file
*/
runNpmInstall() {
console.log('\n📥 Running npm install to update lock file...');
try {
execSync('npm install', {
cwd: path.join(__dirname, '..'),
stdio: 'inherit'
});
return true;
} catch (error) {
console.error('❌ npm install failed:', error.message);
return false;
}
}
/**
* Rebuild the node database
*/
rebuildDatabase() {
console.log('\n🔨 Rebuilding node database...');
try {
execSync('npm run build && npm run rebuild', {
cwd: path.join(__dirname, '..'),
stdio: 'inherit'
});
return true;
} catch (error) {
console.error('❌ Database rebuild failed:', error.message);
return false;
}
}
/**
* Run validation tests
*/
runValidation() {
console.log('\n🧪 Running validation tests...');
try {
execSync('npm run validate && npm run test-nodes', {
cwd: path.join(__dirname, '..'),
stdio: 'inherit'
});
console.log('✅ All tests passed!');
return true;
} catch (error) {
console.error('❌ Validation failed:', error.message);
return false;
}
}
/**
* Generate update summary for PR/commit message
*/
generateUpdateSummary(updates) {
if (updates.length === 0) return '';
const summary = ['Updated n8n dependencies:\n'];
for (const update of updates) {
summary.push(`- ${update.package}: ${update.current} → ${update.latest}`);
}
return summary.join('\n');
}
/**
* Main update process
*/
async run(options = {}) {
const { dryRun = false, skipTests = false } = options;
console.log('🚀 n8n Dependency Updater\n');
console.log('Mode:', dryRun ? 'DRY RUN' : 'LIVE UPDATE');
console.log('Skip tests:', skipTests ? 'YES' : 'NO');
console.log('Strategy: Update n8n and sync its required dependencies');
console.log('');
// Check for updates
const updates = await this.checkForUpdates();
if (updates.length === 0) {
process.exit(0);
}
if (dryRun) {
console.log('\n🔍 DRY RUN: No changes made');
console.log('\nUpdate summary:');
console.log(this.generateUpdateSummary(updates));
process.exit(0);
}
// Apply updates
if (!this.updatePackageJson(updates)) {
process.exit(0);
}
// Install dependencies
if (!this.runNpmInstall()) {
console.error('\n❌ Update failed at npm install step');
process.exit(1);
}
// Rebuild database
if (!this.rebuildDatabase()) {
console.error('\n❌ Update failed at database rebuild step');
process.exit(1);
}
// Run tests
if (!skipTests && !this.runValidation()) {
console.error('\n❌ Update failed at validation step');
process.exit(1);
}
// Success!
console.log('\n✅ Update completed successfully!');
console.log('\nUpdate summary:');
console.log(this.generateUpdateSummary(updates));
// Write summary to file for GitHub Actions
if (process.env.GITHUB_ACTIONS) {
fs.writeFileSync(
path.join(__dirname, '..', 'update-summary.txt'),
this.generateUpdateSummary(updates),
'utf8'
);
}
}
}
// CLI handling
if (require.main === module) {
const args = process.argv.slice(2);
const options = {
dryRun: args.includes('--dry-run') || args.includes('-d'),
skipTests: args.includes('--skip-tests') || args.includes('-s')
};
const updater = new N8nDependencyUpdater();
updater.run(options).catch(error => {
console.error('Unexpected error:', error);
process.exit(1);
});
}
module.exports = N8nDependencyUpdater;
```
--------------------------------------------------------------------------------
/tests/unit/mcp/handlers-n8n-manager-simple.test.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Simple, focused unit tests for handlers-n8n-manager.ts coverage gaps
*
* This test file focuses on specific uncovered lines to achieve >95% coverage
*/
import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
import { createHash } from 'crypto';
describe('handlers-n8n-manager Simple Coverage Tests', () => {
beforeEach(() => {
vi.resetAllMocks();
vi.resetModules();
});
afterEach(() => {
vi.clearAllMocks();
});
describe('Cache Key Generation', () => {
it('should generate deterministic SHA-256 hashes', () => {
const input1 = 'https://api.n8n.cloud:key123:instance1';
const input2 = 'https://api.n8n.cloud:key123:instance1';
const input3 = 'https://api.n8n.cloud:key456:instance2';
const hash1 = createHash('sha256').update(input1).digest('hex');
const hash2 = createHash('sha256').update(input2).digest('hex');
const hash3 = createHash('sha256').update(input3).digest('hex');
// Same input should produce same hash
expect(hash1).toBe(hash2);
// Different input should produce different hash
expect(hash1).not.toBe(hash3);
// Hash should be 64 characters (SHA-256)
expect(hash1).toHaveLength(64);
expect(hash1).toMatch(/^[a-f0-9]{64}$/);
});
it('should handle empty instanceId in cache key generation', () => {
const url = 'https://api.n8n.cloud';
const key = 'test-key';
const instanceId = '';
const cacheInput = `${url}:${key}:${instanceId}`;
const hash = createHash('sha256').update(cacheInput).digest('hex');
expect(hash).toBeDefined();
expect(hash).toHaveLength(64);
});
it('should handle undefined values in cache key generation', () => {
const url = 'https://api.n8n.cloud';
const key = 'test-key';
const instanceId = undefined;
// This simulates the actual cache key generation in the code
const cacheInput = `${url}:${key}:${instanceId || ''}`;
const hash = createHash('sha256').update(cacheInput).digest('hex');
expect(hash).toBeDefined();
expect(cacheInput).toBe('https://api.n8n.cloud:test-key:');
});
});
describe('URL Sanitization', () => {
it('should sanitize URLs for logging', () => {
const fullUrl = 'https://secret.example.com/api/v1/private';
// This simulates the URL sanitization in the logging code
const sanitizedUrl = fullUrl.replace(/^(https?:\/\/[^\/]+).*/, '$1');
expect(sanitizedUrl).toBe('https://secret.example.com');
expect(sanitizedUrl).not.toContain('/api/v1/private');
});
it('should handle various URL formats in sanitization', () => {
const testUrls = [
'https://api.n8n.cloud',
'https://api.n8n.cloud/',
'https://api.n8n.cloud/webhook/abc123',
'http://localhost:5678/api/v1',
'https://subdomain.domain.com/path/to/resource'
];
testUrls.forEach(url => {
const sanitized = url.replace(/^(https?:\/\/[^\/]+).*/, '$1');
// Should contain protocol and domain only
expect(sanitized).toMatch(/^https?:\/\/[^\/]+$/);
// Should not contain paths (but domain names containing 'api' are OK)
expect(sanitized).not.toContain('/webhook');
if (!sanitized.includes('api.n8n.cloud')) {
expect(sanitized).not.toContain('/api');
}
expect(sanitized).not.toContain('/path');
});
});
});
describe('Cache Key Partial Logging', () => {
it('should create partial cache key for logging', () => {
const fullHash = 'abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890';
// This simulates the partial key logging in the dispose callback
const partialKey = fullHash.substring(0, 8) + '...';
expect(partialKey).toBe('abcdef12...');
expect(partialKey).toHaveLength(11);
expect(partialKey).toMatch(/^[a-f0-9]{8}\.\.\.$/);
});
it('should handle various hash lengths for partial logging', () => {
const hashes = [
'a'.repeat(64),
'b'.repeat(32),
'c'.repeat(16),
'd'.repeat(8)
];
hashes.forEach(hash => {
const partial = hash.substring(0, 8) + '...';
expect(partial).toHaveLength(11);
expect(partial.endsWith('...')).toBe(true);
});
});
});
describe('Error Message Handling', () => {
it('should handle different error types correctly', () => {
// Test the error handling patterns used in the handlers
const errorTypes = [
new Error('Standard error'),
'String error',
{ message: 'Object error' },
null,
undefined
];
errorTypes.forEach(error => {
// This simulates the error handling in handlers
const errorMessage = error instanceof Error ? error.message : 'Unknown error occurred';
if (error instanceof Error) {
expect(errorMessage).toBe(error.message);
} else {
expect(errorMessage).toBe('Unknown error occurred');
}
});
});
it('should handle error objects without message property', () => {
const errorLikeObject = { code: 500, details: 'Some details' };
// This simulates error handling for non-Error objects
const errorMessage = errorLikeObject instanceof Error ?
errorLikeObject.message : 'Unknown error occurred';
expect(errorMessage).toBe('Unknown error occurred');
});
});
describe('Configuration Fallbacks', () => {
it('should handle null config scenarios', () => {
// Test configuration fallback logic
const config = null;
const apiConfigured = config !== null;
expect(apiConfigured).toBe(false);
});
it('should handle undefined config values', () => {
const contextWithUndefined = {
n8nApiUrl: 'https://api.n8n.cloud',
n8nApiKey: 'test-key',
n8nApiTimeout: undefined,
n8nApiMaxRetries: undefined
};
// Test default value assignment using nullish coalescing
const timeout = contextWithUndefined.n8nApiTimeout ?? 30000;
const maxRetries = contextWithUndefined.n8nApiMaxRetries ?? 3;
expect(timeout).toBe(30000);
expect(maxRetries).toBe(3);
});
});
describe('Array and Object Handling', () => {
it('should handle undefined array lengths', () => {
const workflowData: { nodes?: any[] } = {
nodes: undefined
};
// This simulates the nodeCount calculation in list workflows
const nodeCount = workflowData.nodes?.length || 0;
expect(nodeCount).toBe(0);
});
it('should handle empty arrays', () => {
const workflowData = {
nodes: []
};
const nodeCount = workflowData.nodes?.length || 0;
expect(nodeCount).toBe(0);
});
it('should handle arrays with elements', () => {
const workflowData = {
nodes: [{ id: 'node1' }, { id: 'node2' }]
};
const nodeCount = workflowData.nodes?.length || 0;
expect(nodeCount).toBe(2);
});
});
describe('Conditional Logic Coverage', () => {
it('should handle truthy cursor values', () => {
const response = {
nextCursor: 'abc123'
};
// This simulates the cursor handling logic
const hasMore = !!response.nextCursor;
const noteCondition = response.nextCursor ? {
_note: "More workflows available. Use cursor to get next page."
} : {};
expect(hasMore).toBe(true);
expect(noteCondition._note).toBeDefined();
});
it('should handle falsy cursor values', () => {
const response = {
nextCursor: null
};
const hasMore = !!response.nextCursor;
const noteCondition = response.nextCursor ? {
_note: "More workflows available. Use cursor to get next page."
} : {};
expect(hasMore).toBe(false);
expect(noteCondition._note).toBeUndefined();
});
});
describe('String Manipulation', () => {
it('should handle environment variable filtering', () => {
const envKeys = [
'N8N_API_URL',
'N8N_API_KEY',
'MCP_MODE',
'NODE_ENV',
'PATH',
'HOME',
'N8N_CUSTOM_VAR'
];
// This simulates the environment variable filtering in diagnostic
const filtered = envKeys.filter(key =>
key.startsWith('N8N_') || key.startsWith('MCP_')
);
expect(filtered).toEqual(['N8N_API_URL', 'N8N_API_KEY', 'MCP_MODE', 'N8N_CUSTOM_VAR']);
});
it('should handle version string extraction', () => {
const packageJson = {
dependencies: {
n8n: '^1.111.0'
}
};
// This simulates the version extraction logic
const supportedVersion = packageJson.dependencies?.n8n?.replace(/[^0-9.]/g, '') || '';
expect(supportedVersion).toBe('1.111.0');
});
it('should handle missing dependencies', () => {
const packageJson: { dependencies?: { n8n?: string } } = {};
const supportedVersion = packageJson.dependencies?.n8n?.replace(/[^0-9.]/g, '') || '';
expect(supportedVersion).toBe('');
});
});
});
```
--------------------------------------------------------------------------------
/src/utils/template-node-resolver.ts:
--------------------------------------------------------------------------------
```typescript
import { logger } from './logger';
/**
* Resolves various node type input formats to all possible template node type formats.
* Templates store node types in full n8n format (e.g., "n8n-nodes-base.slack").
* This function handles various input formats and expands them to all possible matches.
*
* @param nodeTypes Array of node types in various formats
* @returns Array of all possible template node type formats
*
* @example
* resolveTemplateNodeTypes(['slack'])
* // Returns: ['n8n-nodes-base.slack', 'n8n-nodes-base.slackTrigger']
*
* resolveTemplateNodeTypes(['nodes-base.webhook'])
* // Returns: ['n8n-nodes-base.webhook']
*
* resolveTemplateNodeTypes(['httpRequest'])
* // Returns: ['n8n-nodes-base.httpRequest']
*/
export function resolveTemplateNodeTypes(nodeTypes: string[]): string[] {
const resolvedTypes = new Set<string>();
for (const nodeType of nodeTypes) {
// Add all variations for this node type
const variations = generateTemplateNodeVariations(nodeType);
variations.forEach(v => resolvedTypes.add(v));
}
const result = Array.from(resolvedTypes);
logger.debug(`Resolved ${nodeTypes.length} input types to ${result.length} template variations`, {
input: nodeTypes,
output: result
});
return result;
}
/**
* Generates all possible template node type variations for a single input.
*
* @param nodeType Single node type in any format
* @returns Array of possible template formats
*/
function generateTemplateNodeVariations(nodeType: string): string[] {
const variations = new Set<string>();
// If it's already in full n8n format, just return it
if (nodeType.startsWith('n8n-nodes-base.') || nodeType.startsWith('@n8n/n8n-nodes-langchain.')) {
variations.add(nodeType);
return Array.from(variations);
}
// Handle partial prefix formats (e.g., "nodes-base.slack" -> "n8n-nodes-base.slack")
if (nodeType.startsWith('nodes-base.')) {
const nodeName = nodeType.replace('nodes-base.', '');
variations.add(`n8n-nodes-base.${nodeName}`);
// Also try camelCase variations
addCamelCaseVariations(variations, nodeName, 'n8n-nodes-base');
} else if (nodeType.startsWith('nodes-langchain.')) {
const nodeName = nodeType.replace('nodes-langchain.', '');
variations.add(`@n8n/n8n-nodes-langchain.${nodeName}`);
// Also try camelCase variations
addCamelCaseVariations(variations, nodeName, '@n8n/n8n-nodes-langchain');
} else if (!nodeType.includes('.')) {
// Bare node name (e.g., "slack", "webhook", "httpRequest")
// Try both packages with various case combinations
// For n8n-nodes-base
variations.add(`n8n-nodes-base.${nodeType}`);
addCamelCaseVariations(variations, nodeType, 'n8n-nodes-base');
// For langchain (less common for bare names, but include for completeness)
variations.add(`@n8n/n8n-nodes-langchain.${nodeType}`);
addCamelCaseVariations(variations, nodeType, '@n8n/n8n-nodes-langchain');
// Add common related node types (e.g., "slack" -> also include "slackTrigger")
addRelatedNodeTypes(variations, nodeType);
}
return Array.from(variations);
}
/**
* Adds camelCase variations for a node name.
*
* @param variations Set to add variations to
* @param nodeName The node name to create variations for
* @param packagePrefix The package prefix to use
*/
function addCamelCaseVariations(variations: Set<string>, nodeName: string, packagePrefix: string): void {
const lowerName = nodeName.toLowerCase();
// Common patterns in n8n node names
const patterns = [
// Pattern: somethingTrigger (e.g., slackTrigger, webhookTrigger)
{ suffix: 'trigger', capitalize: true },
{ suffix: 'Trigger', capitalize: false },
// Pattern: somethingRequest (e.g., httpRequest)
{ suffix: 'request', capitalize: true },
{ suffix: 'Request', capitalize: false },
// Pattern: somethingDatabase (e.g., mysqlDatabase, postgresDatabase)
{ suffix: 'database', capitalize: true },
{ suffix: 'Database', capitalize: false },
// Pattern: somethingSheet/Sheets (e.g., googleSheets)
{ suffix: 'sheet', capitalize: true },
{ suffix: 'Sheet', capitalize: false },
{ suffix: 'sheets', capitalize: true },
{ suffix: 'Sheets', capitalize: false },
];
// Check if the lowercase name matches any pattern
for (const pattern of patterns) {
const lowerSuffix = pattern.suffix.toLowerCase();
if (lowerName.endsWith(lowerSuffix)) {
// Name already has the suffix, try different capitalizations
const baseName = lowerName.slice(0, -lowerSuffix.length);
if (baseName) {
if (pattern.capitalize) {
// Capitalize the suffix
const capitalizedSuffix = pattern.suffix.charAt(0).toUpperCase() + pattern.suffix.slice(1).toLowerCase();
variations.add(`${packagePrefix}.${baseName}${capitalizedSuffix}`);
} else {
// Use the suffix as-is
variations.add(`${packagePrefix}.${baseName}${pattern.suffix}`);
}
}
} else if (!lowerName.includes(lowerSuffix)) {
// Name doesn't have the suffix, try adding it
if (pattern.capitalize) {
const capitalizedSuffix = pattern.suffix.charAt(0).toUpperCase() + pattern.suffix.slice(1).toLowerCase();
variations.add(`${packagePrefix}.${lowerName}${capitalizedSuffix}`);
}
}
}
// Handle specific known cases
const specificCases: Record<string, string[]> = {
'http': ['httpRequest'],
'httprequest': ['httpRequest'],
'mysql': ['mysql', 'mysqlDatabase'],
'postgres': ['postgres', 'postgresDatabase'],
'postgresql': ['postgres', 'postgresDatabase'],
'mongo': ['mongoDb', 'mongodb'],
'mongodb': ['mongoDb', 'mongodb'],
'google': ['googleSheets', 'googleDrive', 'googleCalendar'],
'googlesheet': ['googleSheets'],
'googlesheets': ['googleSheets'],
'microsoft': ['microsoftTeams', 'microsoftExcel', 'microsoftOutlook'],
'slack': ['slack'],
'discord': ['discord'],
'telegram': ['telegram'],
'webhook': ['webhook'],
'schedule': ['scheduleTrigger'],
'cron': ['cron', 'scheduleTrigger'],
'email': ['emailSend', 'emailReadImap', 'gmail'],
'gmail': ['gmail', 'gmailTrigger'],
'code': ['code'],
'javascript': ['code'],
'python': ['code'],
'js': ['code'],
'set': ['set'],
'if': ['if'],
'switch': ['switch'],
'merge': ['merge'],
'loop': ['splitInBatches'],
'split': ['splitInBatches', 'splitOut'],
'ai': ['openAi'],
'openai': ['openAi'],
'chatgpt': ['openAi'],
'gpt': ['openAi'],
'api': ['httpRequest', 'graphql', 'webhook'],
'csv': ['spreadsheetFile', 'readBinaryFile'],
'excel': ['microsoftExcel', 'spreadsheetFile'],
'spreadsheet': ['spreadsheetFile', 'googleSheets', 'microsoftExcel'],
};
const cases = specificCases[lowerName];
if (cases) {
cases.forEach(c => variations.add(`${packagePrefix}.${c}`));
}
}
/**
* Adds related node types for common patterns.
* For example, "slack" should also include "slackTrigger".
*
* @param variations Set to add variations to
* @param nodeName The base node name
*/
function addRelatedNodeTypes(variations: Set<string>, nodeName: string): void {
const lowerName = nodeName.toLowerCase();
// Map of base names to their related node types
const relatedTypes: Record<string, string[]> = {
'slack': ['slack', 'slackTrigger'],
'gmail': ['gmail', 'gmailTrigger'],
'telegram': ['telegram', 'telegramTrigger'],
'discord': ['discord', 'discordTrigger'],
'webhook': ['webhook', 'webhookTrigger'],
'http': ['httpRequest', 'webhook'],
'email': ['emailSend', 'emailReadImap', 'gmail', 'gmailTrigger'],
'google': ['googleSheets', 'googleDrive', 'googleCalendar', 'googleDocs'],
'microsoft': ['microsoftTeams', 'microsoftExcel', 'microsoftOutlook', 'microsoftOneDrive'],
'database': ['postgres', 'mysql', 'mongoDb', 'redis', 'postgresDatabase', 'mysqlDatabase'],
'db': ['postgres', 'mysql', 'mongoDb', 'redis'],
'sql': ['postgres', 'mysql', 'mssql'],
'nosql': ['mongoDb', 'redis', 'couchDb'],
'schedule': ['scheduleTrigger', 'cron'],
'time': ['scheduleTrigger', 'cron', 'wait'],
'file': ['readBinaryFile', 'writeBinaryFile', 'moveBinaryFile'],
'binary': ['readBinaryFile', 'writeBinaryFile', 'moveBinaryFile'],
'csv': ['spreadsheetFile', 'readBinaryFile'],
'excel': ['microsoftExcel', 'spreadsheetFile'],
'json': ['code', 'set'],
'transform': ['code', 'set', 'merge', 'splitInBatches'],
'ai': ['openAi', 'agent', 'lmChatOpenAi', 'lmChatAnthropic'],
'llm': ['openAi', 'agent', 'lmChatOpenAi', 'lmChatAnthropic', 'lmChatGoogleGemini'],
'agent': ['agent', 'toolAgent'],
'chat': ['chatTrigger', 'agent'],
};
const related = relatedTypes[lowerName];
if (related) {
related.forEach(r => {
variations.add(`n8n-nodes-base.${r}`);
// Also check if it might be a langchain node
if (['agent', 'toolAgent', 'chatTrigger', 'lmChatOpenAi', 'lmChatAnthropic', 'lmChatGoogleGemini'].includes(r)) {
variations.add(`@n8n/n8n-nodes-langchain.${r}`);
}
});
}
}
```
--------------------------------------------------------------------------------
/src/telemetry/event-validator.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Event Validator for Telemetry
* Validates and sanitizes telemetry events using Zod schemas
*/
import { z } from 'zod';
import { TelemetryEvent, WorkflowTelemetry } from './telemetry-types';
import { logger } from '../utils/logger';
// Base property schema that sanitizes strings
const sanitizedString = z.string().transform(val => {
// Remove URLs
let sanitized = val.replace(/https?:\/\/[^\s]+/gi, '[URL]');
// Remove potential API keys
sanitized = sanitized.replace(/[a-zA-Z0-9_-]{32,}/g, '[KEY]');
// Remove emails
sanitized = sanitized.replace(/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/g, '[EMAIL]');
return sanitized;
});
// Schema for generic event properties
const eventPropertiesSchema = z.record(z.unknown()).transform(obj => {
const sanitized: Record<string, any> = {};
for (const [key, value] of Object.entries(obj)) {
// Skip sensitive keys
if (isSensitiveKey(key)) {
continue;
}
// Sanitize string values
if (typeof value === 'string') {
sanitized[key] = sanitizedString.parse(value);
} else if (typeof value === 'number' || typeof value === 'boolean') {
sanitized[key] = value;
} else if (value === null || value === undefined) {
sanitized[key] = null;
} else if (typeof value === 'object') {
// Recursively sanitize nested objects (limited depth)
sanitized[key] = sanitizeNestedObject(value, 3);
}
}
return sanitized;
});
// Schema for telemetry events
export const telemetryEventSchema = z.object({
user_id: z.string().min(1).max(64),
event: z.string().min(1).max(100).regex(/^[a-zA-Z0-9_-]+$/),
properties: eventPropertiesSchema,
created_at: z.string().datetime().optional()
});
// Schema for workflow telemetry
export const workflowTelemetrySchema = z.object({
user_id: z.string().min(1).max(64),
workflow_hash: z.string().min(1).max(64),
node_count: z.number().int().min(0).max(1000),
node_types: z.array(z.string()).max(100),
has_trigger: z.boolean(),
has_webhook: z.boolean(),
complexity: z.enum(['simple', 'medium', 'complex']),
sanitized_workflow: z.object({
nodes: z.array(z.any()).max(1000),
connections: z.record(z.any())
}),
created_at: z.string().datetime().optional()
});
// Specific event property schemas for common events
const toolUsagePropertiesSchema = z.object({
tool: z.string().max(100),
success: z.boolean(),
duration: z.number().min(0).max(3600000), // Max 1 hour
});
const searchQueryPropertiesSchema = z.object({
query: z.string().max(100).transform(val => {
// Apply same sanitization as sanitizedString
let sanitized = val.replace(/https?:\/\/[^\s]+/gi, '[URL]');
sanitized = sanitized.replace(/[a-zA-Z0-9_-]{32,}/g, '[KEY]');
sanitized = sanitized.replace(/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/g, '[EMAIL]');
return sanitized;
}),
resultsFound: z.number().int().min(0),
searchType: z.string().max(50),
hasResults: z.boolean(),
isZeroResults: z.boolean()
});
const validationDetailsPropertiesSchema = z.object({
nodeType: z.string().max(100),
errorType: z.string().max(100),
errorCategory: z.string().max(50),
details: z.record(z.any()).optional()
});
const performanceMetricPropertiesSchema = z.object({
operation: z.string().max(100),
duration: z.number().min(0).max(3600000),
isSlow: z.boolean(),
isVerySlow: z.boolean(),
metadata: z.record(z.any()).optional()
});
// Schema for startup_error event properties (v2.18.2)
const startupErrorPropertiesSchema = z.object({
checkpoint: z.string().max(100),
errorMessage: z.string().max(500),
errorType: z.string().max(100),
checkpointsPassed: z.array(z.string()).max(20),
checkpointsPassedCount: z.number().int().min(0).max(20),
startupDuration: z.number().min(0).max(300000), // Max 5 minutes
platform: z.string().max(50),
arch: z.string().max(50),
nodeVersion: z.string().max(50),
isDocker: z.boolean()
});
// Schema for startup_completed event properties (v2.18.2)
const startupCompletedPropertiesSchema = z.object({
version: z.string().max(50)
});
// Map of event names to their specific schemas
const EVENT_SCHEMAS: Record<string, z.ZodSchema<any>> = {
'tool_used': toolUsagePropertiesSchema,
'search_query': searchQueryPropertiesSchema,
'validation_details': validationDetailsPropertiesSchema,
'performance_metric': performanceMetricPropertiesSchema,
'startup_error': startupErrorPropertiesSchema,
'startup_completed': startupCompletedPropertiesSchema,
};
/**
* Check if a key is sensitive
* Handles various naming conventions: camelCase, snake_case, kebab-case, and case variations
*/
function isSensitiveKey(key: string): boolean {
const sensitivePatterns = [
// Core sensitive terms
'password', 'passwd', 'pwd',
'token', 'jwt', 'bearer',
'apikey', 'api_key', 'api-key',
'secret', 'private',
'credential', 'cred', 'auth',
// Network/Connection sensitive
'url', 'uri', 'endpoint', 'host', 'hostname',
'database', 'db', 'connection', 'conn',
// Service-specific
'slack', 'discord', 'telegram',
'oauth', 'client_secret', 'client-secret', 'clientsecret',
'access_token', 'access-token', 'accesstoken',
'refresh_token', 'refresh-token', 'refreshtoken'
];
const lowerKey = key.toLowerCase();
// Check for exact matches first (most efficient)
if (sensitivePatterns.includes(lowerKey)) {
return true;
}
// Check for compound key terms specifically
if (lowerKey.includes('key') && lowerKey !== 'key') {
// Check if it's a compound term like apikey, api_key, etc.
const keyPatterns = ['apikey', 'api_key', 'api-key', 'secretkey', 'secret_key', 'privatekey', 'private_key'];
if (keyPatterns.some(pattern => lowerKey.includes(pattern))) {
return true;
}
}
// Check for substring matches with word boundaries
return sensitivePatterns.some(pattern => {
// Match as whole words or with common separators
const regex = new RegExp(`(?:^|[_-])${pattern}(?:[_-]|$)`, 'i');
return regex.test(key) || lowerKey.includes(pattern);
});
}
/**
* Sanitize nested objects with depth limit
*/
function sanitizeNestedObject(obj: any, maxDepth: number): any {
if (maxDepth <= 0 || !obj || typeof obj !== 'object') {
return '[NESTED]';
}
if (Array.isArray(obj)) {
return obj.slice(0, 10).map(item =>
typeof item === 'object' ? sanitizeNestedObject(item, maxDepth - 1) : item
);
}
const sanitized: Record<string, any> = {};
let keyCount = 0;
for (const [key, value] of Object.entries(obj)) {
if (keyCount++ >= 20) { // Limit keys per object
sanitized['...'] = 'truncated';
break;
}
if (isSensitiveKey(key)) {
continue;
}
if (typeof value === 'string') {
sanitized[key] = sanitizedString.parse(value);
} else if (typeof value === 'object' && value !== null) {
sanitized[key] = sanitizeNestedObject(value, maxDepth - 1);
} else {
sanitized[key] = value;
}
}
return sanitized;
}
export class TelemetryEventValidator {
private validationErrors: number = 0;
private validationSuccesses: number = 0;
/**
* Validate and sanitize a telemetry event
*/
validateEvent(event: TelemetryEvent): TelemetryEvent | null {
try {
// Use specific schema if available for this event type
const specificSchema = EVENT_SCHEMAS[event.event];
if (specificSchema) {
// Validate properties with specific schema first
const validatedProperties = specificSchema.safeParse(event.properties);
if (!validatedProperties.success) {
logger.debug(`Event validation failed for ${event.event}:`, validatedProperties.error.errors);
this.validationErrors++;
return null;
}
event.properties = validatedProperties.data;
}
// Validate the complete event
const validated = telemetryEventSchema.parse(event);
this.validationSuccesses++;
return validated;
} catch (error) {
if (error instanceof z.ZodError) {
logger.debug('Event validation error:', error.errors);
} else {
logger.debug('Unexpected validation error:', error);
}
this.validationErrors++;
return null;
}
}
/**
* Validate workflow telemetry
*/
validateWorkflow(workflow: WorkflowTelemetry): WorkflowTelemetry | null {
try {
const validated = workflowTelemetrySchema.parse(workflow);
this.validationSuccesses++;
return validated;
} catch (error) {
if (error instanceof z.ZodError) {
logger.debug('Workflow validation error:', error.errors);
} else {
logger.debug('Unexpected workflow validation error:', error);
}
this.validationErrors++;
return null;
}
}
/**
* Get validation statistics
*/
getStats() {
return {
errors: this.validationErrors,
successes: this.validationSuccesses,
total: this.validationErrors + this.validationSuccesses,
errorRate: this.validationErrors / (this.validationErrors + this.validationSuccesses) || 0
};
}
/**
* Reset statistics
*/
resetStats(): void {
this.validationErrors = 0;
this.validationSuccesses = 0;
}
}
```
--------------------------------------------------------------------------------
/src/telemetry/early-error-logger.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Early Error Logger (v2.18.3)
* Captures errors that occur BEFORE the main telemetry system is ready
* Uses direct Supabase insert to bypass batching and ensure immediate persistence
*
* CRITICAL FIXES:
* - Singleton pattern to prevent multiple instances
* - Defensive initialization (safe defaults before any throwing operation)
* - Timeout wrapper for Supabase operations (5s max)
* - Shared sanitization utilities (DRY principle)
*/
import { createClient, SupabaseClient } from '@supabase/supabase-js';
import { TelemetryConfigManager } from './config-manager';
import { TELEMETRY_BACKEND } from './telemetry-types';
import { StartupCheckpoint, isValidCheckpoint, getCheckpointDescription } from './startup-checkpoints';
import { sanitizeErrorMessageCore } from './error-sanitization-utils';
import { logger } from '../utils/logger';
/**
* Timeout wrapper for async operations
* Prevents hanging if Supabase is unreachable
*/
async function withTimeout<T>(promise: Promise<T>, timeoutMs: number, operation: string): Promise<T | null> {
try {
const timeoutPromise = new Promise<T>((_, reject) => {
setTimeout(() => reject(new Error(`${operation} timeout after ${timeoutMs}ms`)), timeoutMs);
});
return await Promise.race([promise, timeoutPromise]);
} catch (error) {
logger.debug(`${operation} failed or timed out:`, error);
return null;
}
}
export class EarlyErrorLogger {
// Singleton instance
private static instance: EarlyErrorLogger | null = null;
// DEFENSIVE INITIALIZATION: Initialize all fields to safe defaults FIRST
// This ensures the object is in a valid state even if initialization fails
private enabled: boolean = false; // Safe default: disabled
private supabase: SupabaseClient | null = null; // Safe default: null
private userId: string | null = null; // Safe default: null
private checkpoints: StartupCheckpoint[] = [];
private startTime: number = Date.now();
private initPromise: Promise<void>;
/**
* Private constructor - use getInstance() instead
* Ensures only one instance exists per process
*/
private constructor() {
// Kick off async initialization without blocking
this.initPromise = this.initialize();
}
/**
* Get singleton instance
* Safe to call from anywhere - initialization errors won't crash caller
*/
static getInstance(): EarlyErrorLogger {
if (!EarlyErrorLogger.instance) {
EarlyErrorLogger.instance = new EarlyErrorLogger();
}
return EarlyErrorLogger.instance;
}
/**
* Async initialization logic
* Separated from constructor to prevent throwing before safe defaults are set
*/
private async initialize(): Promise<void> {
try {
// Validate backend configuration before using
if (!TELEMETRY_BACKEND.URL || !TELEMETRY_BACKEND.ANON_KEY) {
logger.debug('Telemetry backend not configured, early error logger disabled');
this.enabled = false;
return;
}
// Check if telemetry is disabled by user
const configManager = TelemetryConfigManager.getInstance();
const isEnabled = configManager.isEnabled();
if (!isEnabled) {
logger.debug('Telemetry disabled by user, early error logger will not send events');
this.enabled = false;
return;
}
// Initialize Supabase client for direct inserts
this.supabase = createClient(
TELEMETRY_BACKEND.URL,
TELEMETRY_BACKEND.ANON_KEY,
{
auth: {
persistSession: false,
autoRefreshToken: false,
},
}
);
// Get user ID from config manager
this.userId = configManager.getUserId();
// Mark as enabled only after successful initialization
this.enabled = true;
logger.debug('Early error logger initialized successfully');
} catch (error) {
// Initialization failed - ensure safe state
logger.debug('Early error logger initialization failed:', error);
this.enabled = false;
this.supabase = null;
this.userId = null;
}
}
/**
* Wait for initialization to complete (for testing)
* Not needed in production - all methods handle uninitialized state gracefully
*/
async waitForInit(): Promise<void> {
await this.initPromise;
}
/**
* Log a checkpoint as the server progresses through startup
* FIRE-AND-FORGET: Does not block caller (no await needed)
*/
logCheckpoint(checkpoint: StartupCheckpoint): void {
if (!this.enabled) {
return;
}
try {
// Validate checkpoint
if (!isValidCheckpoint(checkpoint)) {
logger.warn(`Invalid checkpoint: ${checkpoint}`);
return;
}
// Add to internal checkpoint list
this.checkpoints.push(checkpoint);
logger.debug(`Checkpoint passed: ${checkpoint} (${getCheckpointDescription(checkpoint)})`);
} catch (error) {
// Don't throw - we don't want checkpoint logging to crash the server
logger.debug('Failed to log checkpoint:', error);
}
}
/**
* Log a startup error with checkpoint context
* This is the main error capture mechanism
* FIRE-AND-FORGET: Does not block caller
*/
logStartupError(checkpoint: StartupCheckpoint, error: unknown): void {
if (!this.enabled || !this.supabase || !this.userId) {
return;
}
// Run async operation without blocking caller
this.logStartupErrorAsync(checkpoint, error).catch((logError) => {
// Swallow errors - telemetry must never crash the server
logger.debug('Failed to log startup error:', logError);
});
}
/**
* Internal async implementation with timeout wrapper
*/
private async logStartupErrorAsync(checkpoint: StartupCheckpoint, error: unknown): Promise<void> {
try {
// Sanitize error message using shared utilities (v2.18.3)
let errorMessage = 'Unknown error';
if (error instanceof Error) {
errorMessage = error.message;
if (error.stack) {
errorMessage = error.stack;
}
} else if (typeof error === 'string') {
errorMessage = error;
} else {
errorMessage = String(error);
}
const sanitizedError = sanitizeErrorMessageCore(errorMessage);
// Extract error type if it's an Error object
let errorType = 'unknown';
if (error instanceof Error) {
errorType = error.name || 'Error';
} else if (typeof error === 'string') {
errorType = 'string_error';
}
// Create startup_error event
const event = {
user_id: this.userId!,
event: 'startup_error',
properties: {
checkpoint,
errorMessage: sanitizedError,
errorType,
checkpointsPassed: this.checkpoints,
checkpointsPassedCount: this.checkpoints.length,
startupDuration: Date.now() - this.startTime,
platform: process.platform,
arch: process.arch,
nodeVersion: process.version,
isDocker: process.env.IS_DOCKER === 'true',
},
created_at: new Date().toISOString(),
};
// Direct insert to Supabase with timeout (5s max)
const insertOperation = async () => {
return await this.supabase!
.from('events')
.insert(event)
.select()
.single();
};
const result = await withTimeout(insertOperation(), 5000, 'Startup error insert');
if (result && 'error' in result && result.error) {
logger.debug('Failed to insert startup error event:', result.error);
} else if (result) {
logger.debug(`Startup error logged for checkpoint: ${checkpoint}`);
}
} catch (logError) {
// Don't throw - telemetry failures should never crash the server
logger.debug('Failed to log startup error:', logError);
}
}
/**
* Log successful startup completion
* Called when all checkpoints have been passed
* FIRE-AND-FORGET: Does not block caller
*/
logStartupSuccess(checkpoints: StartupCheckpoint[], durationMs: number): void {
if (!this.enabled) {
return;
}
try {
// Store checkpoints for potential session_start enhancement
this.checkpoints = checkpoints;
logger.debug(`Startup successful: ${checkpoints.length} checkpoints passed in ${durationMs}ms`);
// We don't send a separate event here - this data will be included
// in the session_start event sent by the main telemetry system
} catch (error) {
logger.debug('Failed to log startup success:', error);
}
}
/**
* Get the list of checkpoints passed so far
*/
getCheckpoints(): StartupCheckpoint[] {
return [...this.checkpoints];
}
/**
* Get startup duration in milliseconds
*/
getStartupDuration(): number {
return Date.now() - this.startTime;
}
/**
* Get startup data for inclusion in session_start event
*/
getStartupData(): { durationMs: number; checkpoints: StartupCheckpoint[] } | null {
if (!this.enabled) {
return null;
}
return {
durationMs: this.getStartupDuration(),
checkpoints: this.getCheckpoints(),
};
}
/**
* Check if early logger is enabled
*/
isEnabled(): boolean {
return this.enabled && this.supabase !== null && this.userId !== null;
}
}
```
--------------------------------------------------------------------------------
/src/telemetry/telemetry-manager.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Telemetry Manager
* Main telemetry coordinator using modular components
*/
import { createClient, SupabaseClient } from '@supabase/supabase-js';
import { TelemetryConfigManager } from './config-manager';
import { TelemetryEventTracker } from './event-tracker';
import { TelemetryBatchProcessor } from './batch-processor';
import { TelemetryPerformanceMonitor } from './performance-monitor';
import { TELEMETRY_BACKEND } from './telemetry-types';
import { TelemetryError, TelemetryErrorType, TelemetryErrorAggregator } from './telemetry-error';
import { logger } from '../utils/logger';
export class TelemetryManager {
private static instance: TelemetryManager;
private supabase: SupabaseClient | null = null;
private configManager: TelemetryConfigManager;
private eventTracker: TelemetryEventTracker;
private batchProcessor: TelemetryBatchProcessor;
private performanceMonitor: TelemetryPerformanceMonitor;
private errorAggregator: TelemetryErrorAggregator;
private isInitialized: boolean = false;
private constructor() {
// Prevent direct instantiation even when TypeScript is bypassed
if (TelemetryManager.instance) {
throw new Error('Use TelemetryManager.getInstance() instead of new TelemetryManager()');
}
this.configManager = TelemetryConfigManager.getInstance();
this.errorAggregator = new TelemetryErrorAggregator();
this.performanceMonitor = new TelemetryPerformanceMonitor();
// Initialize event tracker with callbacks
this.eventTracker = new TelemetryEventTracker(
() => this.configManager.getUserId(),
() => this.isEnabled()
);
// Initialize batch processor (will be configured after Supabase init)
this.batchProcessor = new TelemetryBatchProcessor(
null,
() => this.isEnabled()
);
// Delay initialization to first use, not constructor
// this.initialize();
}
static getInstance(): TelemetryManager {
if (!TelemetryManager.instance) {
TelemetryManager.instance = new TelemetryManager();
}
return TelemetryManager.instance;
}
/**
* Ensure telemetry is initialized before use
*/
private ensureInitialized(): void {
if (!this.isInitialized && this.configManager.isEnabled()) {
this.initialize();
}
}
/**
* Initialize telemetry if enabled
*/
private initialize(): void {
if (!this.configManager.isEnabled()) {
logger.debug('Telemetry disabled by user preference');
return;
}
// Use hardcoded credentials for zero-configuration telemetry
// Environment variables can override for development/testing
const supabaseUrl = process.env.SUPABASE_URL || TELEMETRY_BACKEND.URL;
const supabaseAnonKey = process.env.SUPABASE_ANON_KEY || TELEMETRY_BACKEND.ANON_KEY;
try {
this.supabase = createClient(supabaseUrl, supabaseAnonKey, {
auth: {
persistSession: false,
autoRefreshToken: false,
},
realtime: {
params: {
eventsPerSecond: 1,
},
},
});
// Update batch processor with Supabase client
this.batchProcessor = new TelemetryBatchProcessor(
this.supabase,
() => this.isEnabled()
);
this.batchProcessor.start();
this.isInitialized = true;
logger.debug('Telemetry initialized successfully');
} catch (error) {
const telemetryError = new TelemetryError(
TelemetryErrorType.INITIALIZATION_ERROR,
'Failed to initialize telemetry',
{ error: error instanceof Error ? error.message : String(error) }
);
this.errorAggregator.record(telemetryError);
telemetryError.log();
this.isInitialized = false;
}
}
/**
* Track a tool usage event
*/
trackToolUsage(toolName: string, success: boolean, duration?: number): void {
this.ensureInitialized();
this.performanceMonitor.startOperation('trackToolUsage');
this.eventTracker.trackToolUsage(toolName, success, duration);
this.eventTracker.updateToolSequence(toolName);
this.performanceMonitor.endOperation('trackToolUsage');
}
/**
* Track workflow creation
*/
async trackWorkflowCreation(workflow: any, validationPassed: boolean): Promise<void> {
this.ensureInitialized();
this.performanceMonitor.startOperation('trackWorkflowCreation');
try {
await this.eventTracker.trackWorkflowCreation(workflow, validationPassed);
// Auto-flush workflows to prevent data loss
await this.flush();
} catch (error) {
const telemetryError = error instanceof TelemetryError
? error
: new TelemetryError(
TelemetryErrorType.UNKNOWN_ERROR,
'Failed to track workflow',
{ error: String(error) }
);
this.errorAggregator.record(telemetryError);
} finally {
this.performanceMonitor.endOperation('trackWorkflowCreation');
}
}
/**
* Track an error event
*/
trackError(errorType: string, context: string, toolName?: string, errorMessage?: string): void {
this.ensureInitialized();
this.eventTracker.trackError(errorType, context, toolName, errorMessage);
}
/**
* Track a generic event
*/
trackEvent(eventName: string, properties: Record<string, any>): void {
this.ensureInitialized();
this.eventTracker.trackEvent(eventName, properties);
}
/**
* Track session start
*/
trackSessionStart(): void {
this.ensureInitialized();
this.eventTracker.trackSessionStart();
}
/**
* Track search queries
*/
trackSearchQuery(query: string, resultsFound: number, searchType: string): void {
this.eventTracker.trackSearchQuery(query, resultsFound, searchType);
}
/**
* Track validation details
*/
trackValidationDetails(nodeType: string, errorType: string, details: Record<string, any>): void {
this.eventTracker.trackValidationDetails(nodeType, errorType, details);
}
/**
* Track tool sequences
*/
trackToolSequence(previousTool: string, currentTool: string, timeDelta: number): void {
this.eventTracker.trackToolSequence(previousTool, currentTool, timeDelta);
}
/**
* Track node configuration
*/
trackNodeConfiguration(nodeType: string, propertiesSet: number, usedDefaults: boolean): void {
this.eventTracker.trackNodeConfiguration(nodeType, propertiesSet, usedDefaults);
}
/**
* Track performance metrics
*/
trackPerformanceMetric(operation: string, duration: number, metadata?: Record<string, any>): void {
this.eventTracker.trackPerformanceMetric(operation, duration, metadata);
}
/**
* Flush queued events to Supabase
*/
async flush(): Promise<void> {
this.ensureInitialized();
if (!this.isEnabled() || !this.supabase) return;
this.performanceMonitor.startOperation('flush');
// Get queued data from event tracker
const events = this.eventTracker.getEventQueue();
const workflows = this.eventTracker.getWorkflowQueue();
// Clear queues immediately to prevent duplicate processing
this.eventTracker.clearEventQueue();
this.eventTracker.clearWorkflowQueue();
try {
// Use batch processor to flush
await this.batchProcessor.flush(events, workflows);
} catch (error) {
const telemetryError = error instanceof TelemetryError
? error
: new TelemetryError(
TelemetryErrorType.NETWORK_ERROR,
'Failed to flush telemetry',
{ error: String(error) },
true // Retryable
);
this.errorAggregator.record(telemetryError);
telemetryError.log();
} finally {
const duration = this.performanceMonitor.endOperation('flush');
if (duration > 100) {
logger.debug(`Telemetry flush took ${duration.toFixed(2)}ms`);
}
}
}
/**
* Check if telemetry is enabled
*/
private isEnabled(): boolean {
return this.isInitialized && this.configManager.isEnabled();
}
/**
* Disable telemetry
*/
disable(): void {
this.configManager.disable();
this.batchProcessor.stop();
this.isInitialized = false;
this.supabase = null;
}
/**
* Enable telemetry
*/
enable(): void {
this.configManager.enable();
this.initialize();
}
/**
* Get telemetry status
*/
getStatus(): string {
return this.configManager.getStatus();
}
/**
* Get comprehensive telemetry metrics
*/
getMetrics() {
return {
status: this.isEnabled() ? 'enabled' : 'disabled',
initialized: this.isInitialized,
tracking: this.eventTracker.getStats(),
processing: this.batchProcessor.getMetrics(),
errors: this.errorAggregator.getStats(),
performance: this.performanceMonitor.getDetailedReport(),
overhead: this.performanceMonitor.getTelemetryOverhead()
};
}
/**
* Reset singleton instance (for testing purposes)
*/
static resetInstance(): void {
TelemetryManager.instance = undefined as any;
(global as any).__telemetryManager = undefined;
}
}
// Create a global singleton to ensure only one instance across all imports
const globalAny = global as any;
if (!globalAny.__telemetryManager) {
globalAny.__telemetryManager = TelemetryManager.getInstance();
}
// Export singleton instance
export const telemetry = globalAny.__telemetryManager as TelemetryManager;
```
--------------------------------------------------------------------------------
/tests/utils/data-generators.ts:
--------------------------------------------------------------------------------
```typescript
import { faker } from '@faker-js/faker';
import { WorkflowNode, Workflow } from '@/types/n8n-api';
// Use any type for INodeDefinition since it's from n8n-workflow package
type INodeDefinition = any;
/**
* Data generators for creating realistic test data
*/
/**
* Generate a random node type
*/
export function generateNodeType(): string {
const packages = ['n8n-nodes-base', '@n8n/n8n-nodes-langchain'];
const nodeTypes = [
'webhook', 'httpRequest', 'slack', 'googleSheets', 'postgres',
'function', 'code', 'if', 'switch', 'merge', 'splitInBatches',
'emailSend', 'redis', 'mongodb', 'mysql', 'ftp', 'ssh'
];
const pkg = faker.helpers.arrayElement(packages);
const type = faker.helpers.arrayElement(nodeTypes);
return `${pkg}.${type}`;
}
/**
* Generate property definitions for a node
*/
export function generateProperties(count = 5): any[] {
const properties = [];
for (let i = 0; i < count; i++) {
const type = faker.helpers.arrayElement([
'string', 'number', 'boolean', 'options', 'collection'
]);
const property: any = {
displayName: faker.helpers.arrayElement([
'Resource', 'Operation', 'Field', 'Value', 'Method',
'URL', 'Headers', 'Body', 'Authentication', 'Options'
]),
name: faker.helpers.slugify(faker.word.noun()).toLowerCase(),
type,
default: generateDefaultValue(type),
description: faker.lorem.sentence()
};
if (type === 'options') {
property.options = generateOptions();
}
if (faker.datatype.boolean()) {
property.required = true;
}
if (faker.datatype.boolean()) {
property.displayOptions = generateDisplayOptions();
}
properties.push(property);
}
return properties;
}
/**
* Generate default value based on type
*/
function generateDefaultValue(type: string): any {
switch (type) {
case 'string':
return faker.lorem.word();
case 'number':
return faker.number.int({ min: 0, max: 100 });
case 'boolean':
return faker.datatype.boolean();
case 'options':
return 'option1';
case 'collection':
return {};
default:
return '';
}
}
/**
* Generate options for select fields
*/
function generateOptions(count = 3): any[] {
const options = [];
for (let i = 0; i < count; i++) {
options.push({
name: faker.helpers.arrayElement([
'Create', 'Read', 'Update', 'Delete', 'List',
'Get', 'Post', 'Put', 'Patch', 'Send'
]),
value: `option${i + 1}`,
description: faker.lorem.sentence()
});
}
return options;
}
/**
* Generate display options for conditional fields
*/
function generateDisplayOptions(): any {
return {
show: {
resource: [faker.helpers.arrayElement(['user', 'post', 'message'])],
operation: [faker.helpers.arrayElement(['create', 'update', 'get'])]
}
};
}
/**
* Generate a complete node definition
*/
export function generateNodeDefinition(overrides?: Partial<INodeDefinition>): any {
const nodeCategory = faker.helpers.arrayElement([
'Core Nodes', 'Communication', 'Data Transformation',
'Development', 'Files', 'Productivity', 'Analytics'
]);
return {
displayName: faker.company.name() + ' Node',
name: faker.helpers.slugify(faker.company.name()).toLowerCase(),
group: [faker.helpers.arrayElement(['trigger', 'transform', 'output'])],
version: faker.number.float({ min: 1, max: 3, fractionDigits: 1 }),
subtitle: `={{$parameter["operation"] + ": " + $parameter["resource"]}}`,
description: faker.lorem.paragraph(),
defaults: {
name: faker.company.name(),
color: faker.color.rgb()
},
inputs: ['main'],
outputs: ['main'],
credentials: faker.datatype.boolean() ? [{
name: faker.helpers.slugify(faker.company.name()).toLowerCase() + 'Api',
required: true
}] : undefined,
properties: generateProperties(),
codex: {
categories: [nodeCategory],
subcategories: {
[nodeCategory]: [faker.word.noun()]
},
alias: [faker.word.noun(), faker.word.verb()]
},
...overrides
};
}
/**
* Generate workflow nodes
*/
export function generateWorkflowNodes(count = 3): WorkflowNode[] {
const nodes: WorkflowNode[] = [];
for (let i = 0; i < count; i++) {
nodes.push({
id: faker.string.uuid(),
name: faker.helpers.arrayElement([
'Webhook', 'HTTP Request', 'Set', 'Function', 'IF',
'Slack', 'Email', 'Database', 'Code'
]) + (i > 0 ? i : ''),
type: generateNodeType(),
typeVersion: faker.number.float({ min: 1, max: 3, fractionDigits: 1 }),
position: [
250 + i * 200,
300 + (i % 2) * 100
],
parameters: generateNodeParameters()
});
}
return nodes;
}
/**
* Generate node parameters
*/
function generateNodeParameters(): Record<string, any> {
const params: Record<string, any> = {};
// Common parameters
if (faker.datatype.boolean()) {
params.resource = faker.helpers.arrayElement(['user', 'post', 'message']);
params.operation = faker.helpers.arrayElement(['create', 'get', 'update', 'delete']);
}
// Type-specific parameters
if (faker.datatype.boolean()) {
params.url = faker.internet.url();
}
if (faker.datatype.boolean()) {
params.method = faker.helpers.arrayElement(['GET', 'POST', 'PUT', 'DELETE']);
}
if (faker.datatype.boolean()) {
params.authentication = faker.helpers.arrayElement(['none', 'basicAuth', 'oAuth2']);
}
// Add some random parameters
const randomParamCount = faker.number.int({ min: 1, max: 5 });
for (let i = 0; i < randomParamCount; i++) {
const key = faker.word.noun().toLowerCase();
params[key] = faker.helpers.arrayElement([
faker.lorem.word(),
faker.number.int(),
faker.datatype.boolean(),
'={{ $json.data }}'
]);
}
return params;
}
/**
* Generate workflow connections
*/
export function generateConnections(nodes: WorkflowNode[]): Record<string, any> {
const connections: Record<string, any> = {};
// Connect nodes sequentially
for (let i = 0; i < nodes.length - 1; i++) {
const sourceId = nodes[i].id;
const targetId = nodes[i + 1].id;
if (!connections[sourceId]) {
connections[sourceId] = { main: [[]] };
}
connections[sourceId].main[0].push({
node: targetId,
type: 'main',
index: 0
});
}
// Add some random connections
if (nodes.length > 2 && faker.datatype.boolean()) {
const sourceIdx = faker.number.int({ min: 0, max: nodes.length - 2 });
const targetIdx = faker.number.int({ min: sourceIdx + 1, max: nodes.length - 1 });
const sourceId = nodes[sourceIdx].id;
const targetId = nodes[targetIdx].id;
if (connections[sourceId]?.main[0]) {
connections[sourceId].main[0].push({
node: targetId,
type: 'main',
index: 0
});
}
}
return connections;
}
/**
* Generate a complete workflow
*/
export function generateWorkflow(nodeCount = 3): Workflow {
const nodes = generateWorkflowNodes(nodeCount);
return {
id: faker.string.uuid(),
name: faker.helpers.arrayElement([
'Data Processing Workflow',
'API Integration Flow',
'Notification Pipeline',
'ETL Process',
'Webhook Handler'
]),
active: faker.datatype.boolean(),
nodes,
connections: generateConnections(nodes),
settings: {
executionOrder: 'v1',
saveManualExecutions: true,
timezone: faker.location.timeZone()
},
staticData: {},
tags: generateTags().map(t => t.name),
createdAt: faker.date.past().toISOString(),
updatedAt: faker.date.recent().toISOString()
};
}
/**
* Generate workflow tags
*/
function generateTags(): Array<{ id: string; name: string }> {
const tagCount = faker.number.int({ min: 0, max: 3 });
const tags = [];
for (let i = 0; i < tagCount; i++) {
tags.push({
id: faker.string.uuid(),
name: faker.helpers.arrayElement([
'production', 'development', 'testing',
'automation', 'integration', 'notification'
])
});
}
return tags;
}
/**
* Generate test templates
*/
export function generateTemplate() {
const workflow = generateWorkflow();
return {
id: faker.number.int({ min: 1000, max: 9999 }),
name: workflow.name,
description: faker.lorem.paragraph(),
workflow,
categories: faker.helpers.arrayElements([
'Sales', 'Marketing', 'Engineering',
'HR', 'Finance', 'Operations'
], { min: 1, max: 3 }),
useCases: faker.helpers.arrayElements([
'Lead Generation', 'Data Sync', 'Notifications',
'Reporting', 'Automation', 'Integration'
], { min: 1, max: 3 }),
views: faker.number.int({ min: 0, max: 10000 }),
recentViews: faker.number.int({ min: 0, max: 100 })
};
}
/**
* Generate bulk test data
*/
export function generateBulkData(counts: {
nodes?: number;
workflows?: number;
templates?: number;
}) {
const { nodes = 10, workflows = 5, templates = 3 } = counts;
return {
nodes: Array.from({ length: nodes }, () => generateNodeDefinition()),
workflows: Array.from({ length: workflows }, () => generateWorkflow()),
templates: Array.from({ length: templates }, () => generateTemplate())
};
}
```
--------------------------------------------------------------------------------
/MEMORY_TEMPLATE_UPDATE.md:
--------------------------------------------------------------------------------
```markdown
# Template Update Process - Quick Reference
## Overview
The n8n-mcp project maintains a database of workflow templates from n8n.io. This guide explains how to update the template database incrementally without rebuilding from scratch.
## Current Database State
As of the last update:
- **2,598 templates** in database
- Templates from the last 12 months
- Latest template: September 12, 2025
## Quick Commands
### Incremental Update (Recommended)
```bash
# Build if needed
npm run build
# Fetch only NEW templates (5-10 minutes)
npm run fetch:templates:update
```
### Full Rebuild (Rare)
```bash
# Rebuild entire database from scratch (30-40 minutes)
npm run fetch:templates
```
## How It Works
### Incremental Update Mode (`--update`)
The incremental update is **smart and efficient**:
1. **Loads existing template IDs** from database (~2,598 templates)
2. **Fetches template list** from n8n.io API (all templates from last 12 months)
3. **Filters** to find only NEW templates not in database
4. **Fetches details** for new templates only (saves time and API calls)
5. **Saves** new templates to database (existing ones untouched)
6. **Rebuilds FTS5** search index for new templates
### Key Benefits
✅ **Non-destructive**: All existing templates preserved
✅ **Fast**: Only fetches new templates (5-10 min vs 30-40 min)
✅ **API friendly**: Reduces load on n8n.io API
✅ **Safe**: Preserves AI-generated metadata
✅ **Smart**: Automatically skips duplicates
## Performance Comparison
| Mode | Templates Fetched | Time | Use Case |
|------|------------------|------|----------|
| **Update** | Only new (~50-200) | 5-10 min | Regular updates |
| **Rebuild** | All (~8000+) | 30-40 min | Initial setup or corruption |
## Command Options
### Basic Update
```bash
npm run fetch:templates:update
```
### Full Rebuild
```bash
npm run fetch:templates
```
### With Metadata Generation
```bash
# Update templates and generate AI metadata
npm run fetch:templates -- --update --generate-metadata
# Or just generate metadata for existing templates
npm run fetch:templates -- --metadata-only
```
### Help
```bash
npm run fetch:templates -- --help
```
## Update Frequency
Recommended update schedule:
- **Weekly**: Run incremental update to get latest templates
- **Monthly**: Review database statistics
- **As needed**: Rebuild only if database corruption suspected
## Template Filtering
The fetcher automatically filters templates:
- ✅ **Includes**: Templates from last 12 months
- ✅ **Includes**: Templates with >10 views
- ❌ **Excludes**: Templates with ≤10 views (too niche)
- ❌ **Excludes**: Templates older than 12 months
## Workflow
### Regular Update Workflow
```bash
# 1. Check current state
sqlite3 data/nodes.db "SELECT COUNT(*) FROM templates"
# 2. Build project (if code changed)
npm run build
# 3. Run incremental update
npm run fetch:templates:update
# 4. Verify new templates added
sqlite3 data/nodes.db "SELECT COUNT(*) FROM templates"
```
### After n8n Dependency Update
When you update n8n dependencies, templates remain compatible:
```bash
# 1. Update n8n (from MEMORY_N8N_UPDATE.md)
npm run update:all
# 2. Fetch new templates incrementally
npm run fetch:templates:update
# 3. Check how many templates were added
sqlite3 data/nodes.db "SELECT COUNT(*) FROM templates"
# 4. Generate AI metadata for new templates (optional, requires OPENAI_API_KEY)
npm run fetch:templates -- --metadata-only
# 5. IMPORTANT: Sanitize templates before pushing database
npm run build
npm run sanitize:templates
```
Templates are independent of n8n version - they're just workflow JSON data.
**CRITICAL**: Always run `npm run sanitize:templates` before pushing the database to remove API tokens from template workflows.
**Note**: New templates fetched via `--update` mode will NOT have AI-generated metadata by default. You need to run `--metadata-only` separately to generate metadata for templates that don't have it yet.
## Troubleshooting
### No New Templates Found
This is normal! It means:
- All recent templates are already in your database
- n8n.io hasn't published many new templates recently
- Your database is up to date
```bash
📊 Update mode: 0 new templates to fetch (skipping 2598 existing)
✅ All templates already have metadata
```
### API Rate Limiting
If you hit rate limits:
- The fetcher includes built-in delays (150ms between requests)
- Wait a few minutes and try again
- Use `--update` mode instead of full rebuild
### Database Corruption
If you suspect corruption:
```bash
# Full rebuild from scratch
npm run fetch:templates
# This will:
# - Drop and recreate templates table
# - Fetch all templates fresh
# - Rebuild search indexes
```
## Database Schema
Templates are stored with:
- Basic info (id, name, description, author, views, created_at)
- Node types used (JSON array)
- Complete workflow (gzip compressed, base64 encoded)
- AI-generated metadata (optional, requires OpenAI API key)
- FTS5 search index for fast text search
## Metadata Generation
Generate AI metadata for templates:
```bash
# Requires OPENAI_API_KEY in .env
export OPENAI_API_KEY="sk-..."
# Generate for templates without metadata (recommended after incremental update)
npm run fetch:templates -- --metadata-only
# Generate during template fetch (slower, but automatic)
npm run fetch:templates:update -- --generate-metadata
```
**Important**: Incremental updates (`--update`) do NOT generate metadata by default. After running `npm run fetch:templates:update`, you'll have new templates without metadata. Run `--metadata-only` separately to generate metadata for them.
### Check Metadata Coverage
```bash
# See how many templates have metadata
sqlite3 data/nodes.db "SELECT
COUNT(*) as total,
SUM(CASE WHEN metadata_json IS NOT NULL THEN 1 ELSE 0 END) as with_metadata,
SUM(CASE WHEN metadata_json IS NULL THEN 1 ELSE 0 END) as without_metadata
FROM templates"
# See recent templates without metadata
sqlite3 data/nodes.db "SELECT id, name, created_at
FROM templates
WHERE metadata_json IS NULL
ORDER BY created_at DESC
LIMIT 10"
```
Metadata includes:
- Categories
- Complexity level (simple/medium/complex)
- Use cases
- Estimated setup time
- Required services
- Key features
- Target audience
### Metadata Generation Troubleshooting
If metadata generation fails:
1. **Check error file**: Errors are saved to `temp/batch/batch_*_error.jsonl`
2. **Common issues**:
- `"Unsupported value: 'temperature'"` - Model doesn't support custom temperature
- `"Invalid request"` - Check OPENAI_API_KEY is valid
- Model availability issues
3. **Model**: Uses `gpt-5-mini-2025-08-07` by default
4. **Token limit**: 3000 tokens per request for detailed metadata
The system will automatically:
- Process error files and assign default metadata to failed templates
- Save error details for debugging
- Continue processing even if some templates fail
**Example error handling**:
```bash
# If you see: "No output file available for batch job"
# Check: temp/batch/batch_*_error.jsonl for error details
# The system now automatically processes errors and generates default metadata
```
## Environment Variables
Optional configuration:
```bash
# OpenAI for metadata generation
OPENAI_API_KEY=sk-...
OPENAI_MODEL=gpt-4o-mini # Default model
OPENAI_BATCH_SIZE=50 # Batch size for metadata generation
# Metadata generation limits
METADATA_LIMIT=100 # Max templates to process (0 = all)
```
## Statistics
After update, check stats:
```bash
# Template count
sqlite3 data/nodes.db "SELECT COUNT(*) FROM templates"
# Most recent template
sqlite3 data/nodes.db "SELECT MAX(created_at) FROM templates"
# Templates by view count
sqlite3 data/nodes.db "SELECT COUNT(*),
CASE
WHEN views < 50 THEN '<50'
WHEN views < 100 THEN '50-100'
WHEN views < 500 THEN '100-500'
ELSE '500+'
END as view_range
FROM templates GROUP BY view_range"
```
## Integration with n8n-mcp
Templates are available through MCP tools:
- `list_templates`: List all templates
- `get_template`: Get specific template with workflow
- `search_templates`: Search by keyword
- `list_node_templates`: Templates using specific nodes
- `get_templates_for_task`: Templates for common tasks
- `search_templates_by_metadata`: Advanced filtering
See `npm run test:templates` for usage examples.
## Time Estimates
Typical incremental update:
- Loading existing IDs: 1-2 seconds
- Fetching template list: 2-3 minutes
- Filtering new templates: instant
- Fetching details for 100 new templates: ~15 seconds (0.15s each)
- Saving and indexing: 5-10 seconds
- **Total: 3-5 minutes**
Full rebuild:
- Fetching 8000+ templates: 25-30 minutes
- Saving and indexing: 5-10 minutes
- **Total: 30-40 minutes**
## Best Practices
1. **Use incremental updates** for regular maintenance
2. **Rebuild only when necessary** (corruption, major changes)
3. **Generate metadata incrementally** to avoid OpenAI costs
4. **Monitor template count** to verify updates working
5. **Keep database backed up** before major operations
## Next Steps
After updating templates:
1. Test template search: `npm run test:templates`
2. Verify MCP tools work: Test in Claude Desktop
3. Check statistics in database
4. Commit changes if desired (database changes)
## Related Documentation
- `MEMORY_N8N_UPDATE.md` - Updating n8n dependencies
- `CLAUDE.md` - Project overview and architecture
- `README.md` - User documentation
```
--------------------------------------------------------------------------------
/src/utils/validation-schemas.ts:
--------------------------------------------------------------------------------
```typescript
/**
* Zod validation schemas for MCP tool parameters
* Provides robust input validation with detailed error messages
*/
// Simple validation without zod for now, since it's not installed
// We can use TypeScript's built-in validation with better error messages
export class ValidationError extends Error {
constructor(message: string, public field?: string, public value?: any) {
super(message);
this.name = 'ValidationError';
}
}
export interface ValidationResult {
valid: boolean;
errors: Array<{
field: string;
message: string;
value?: any;
}>;
}
/**
* Basic validation utilities
*/
export class Validator {
/**
* Validate that a value is a non-empty string
*/
static validateString(value: any, fieldName: string, required: boolean = true): ValidationResult {
const errors: Array<{field: string, message: string, value?: any}> = [];
if (required && (value === undefined || value === null)) {
errors.push({
field: fieldName,
message: `${fieldName} is required`,
value
});
} else if (value !== undefined && value !== null && typeof value !== 'string') {
errors.push({
field: fieldName,
message: `${fieldName} must be a string, got ${typeof value}`,
value
});
} else if (required && typeof value === 'string' && value.trim().length === 0) {
errors.push({
field: fieldName,
message: `${fieldName} cannot be empty`,
value
});
}
return {
valid: errors.length === 0,
errors
};
}
/**
* Validate that a value is a valid object (not null, not array)
*/
static validateObject(value: any, fieldName: string, required: boolean = true): ValidationResult {
const errors: Array<{field: string, message: string, value?: any}> = [];
if (required && (value === undefined || value === null)) {
errors.push({
field: fieldName,
message: `${fieldName} is required`,
value
});
} else if (value !== undefined && value !== null) {
if (typeof value !== 'object') {
errors.push({
field: fieldName,
message: `${fieldName} must be an object, got ${typeof value}`,
value
});
} else if (Array.isArray(value)) {
errors.push({
field: fieldName,
message: `${fieldName} must be an object, not an array`,
value
});
}
}
return {
valid: errors.length === 0,
errors
};
}
/**
* Validate that a value is an array
*/
static validateArray(value: any, fieldName: string, required: boolean = true): ValidationResult {
const errors: Array<{field: string, message: string, value?: any}> = [];
if (required && (value === undefined || value === null)) {
errors.push({
field: fieldName,
message: `${fieldName} is required`,
value
});
} else if (value !== undefined && value !== null && !Array.isArray(value)) {
errors.push({
field: fieldName,
message: `${fieldName} must be an array, got ${typeof value}`,
value
});
}
return {
valid: errors.length === 0,
errors
};
}
/**
* Validate that a value is a number
*/
static validateNumber(value: any, fieldName: string, required: boolean = true, min?: number, max?: number): ValidationResult {
const errors: Array<{field: string, message: string, value?: any}> = [];
if (required && (value === undefined || value === null)) {
errors.push({
field: fieldName,
message: `${fieldName} is required`,
value
});
} else if (value !== undefined && value !== null) {
if (typeof value !== 'number' || isNaN(value)) {
errors.push({
field: fieldName,
message: `${fieldName} must be a number, got ${typeof value}`,
value
});
} else {
if (min !== undefined && value < min) {
errors.push({
field: fieldName,
message: `${fieldName} must be at least ${min}, got ${value}`,
value
});
}
if (max !== undefined && value > max) {
errors.push({
field: fieldName,
message: `${fieldName} must be at most ${max}, got ${value}`,
value
});
}
}
}
return {
valid: errors.length === 0,
errors
};
}
/**
* Validate that a value is one of allowed values
*/
static validateEnum<T>(value: any, fieldName: string, allowedValues: T[], required: boolean = true): ValidationResult {
const errors: Array<{field: string, message: string, value?: any}> = [];
if (required && (value === undefined || value === null)) {
errors.push({
field: fieldName,
message: `${fieldName} is required`,
value
});
} else if (value !== undefined && value !== null && !allowedValues.includes(value)) {
errors.push({
field: fieldName,
message: `${fieldName} must be one of: ${allowedValues.join(', ')}, got "${value}"`,
value
});
}
return {
valid: errors.length === 0,
errors
};
}
/**
* Combine multiple validation results
*/
static combineResults(...results: ValidationResult[]): ValidationResult {
const allErrors = results.flatMap(r => r.errors);
return {
valid: allErrors.length === 0,
errors: allErrors
};
}
/**
* Create a detailed error message from validation result
*/
static formatErrors(result: ValidationResult, toolName?: string): string {
if (result.valid) return '';
const prefix = toolName ? `${toolName}: ` : '';
const errors = result.errors.map(e => ` • ${e.field}: ${e.message}`).join('\n');
return `${prefix}Validation failed:\n${errors}`;
}
}
/**
* Tool-specific validation schemas
*/
export class ToolValidation {
/**
* Validate parameters for validate_node_operation tool
*/
static validateNodeOperation(args: any): ValidationResult {
const nodeTypeResult = Validator.validateString(args.nodeType, 'nodeType');
const configResult = Validator.validateObject(args.config, 'config');
const profileResult = Validator.validateEnum(
args.profile,
'profile',
['minimal', 'runtime', 'ai-friendly', 'strict'],
false // optional
);
return Validator.combineResults(nodeTypeResult, configResult, profileResult);
}
/**
* Validate parameters for validate_node_minimal tool
*/
static validateNodeMinimal(args: any): ValidationResult {
const nodeTypeResult = Validator.validateString(args.nodeType, 'nodeType');
const configResult = Validator.validateObject(args.config, 'config');
return Validator.combineResults(nodeTypeResult, configResult);
}
/**
* Validate parameters for validate_workflow tool
*/
static validateWorkflow(args: any): ValidationResult {
const workflowResult = Validator.validateObject(args.workflow, 'workflow');
// Validate workflow structure if it's an object
let nodesResult: ValidationResult = { valid: true, errors: [] };
let connectionsResult: ValidationResult = { valid: true, errors: [] };
if (workflowResult.valid && args.workflow) {
nodesResult = Validator.validateArray(args.workflow.nodes, 'workflow.nodes');
connectionsResult = Validator.validateObject(args.workflow.connections, 'workflow.connections');
}
const optionsResult = args.options ?
Validator.validateObject(args.options, 'options', false) :
{ valid: true, errors: [] };
return Validator.combineResults(workflowResult, nodesResult, connectionsResult, optionsResult);
}
/**
* Validate parameters for search_nodes tool
*/
static validateSearchNodes(args: any): ValidationResult {
const queryResult = Validator.validateString(args.query, 'query');
const limitResult = Validator.validateNumber(args.limit, 'limit', false, 1, 200);
const modeResult = Validator.validateEnum(
args.mode,
'mode',
['OR', 'AND', 'FUZZY'],
false
);
return Validator.combineResults(queryResult, limitResult, modeResult);
}
/**
* Validate parameters for list_node_templates tool
*/
static validateListNodeTemplates(args: any): ValidationResult {
const nodeTypesResult = Validator.validateArray(args.nodeTypes, 'nodeTypes');
const limitResult = Validator.validateNumber(args.limit, 'limit', false, 1, 50);
return Validator.combineResults(nodeTypesResult, limitResult);
}
/**
* Validate parameters for n8n workflow operations
*/
static validateWorkflowId(args: any): ValidationResult {
return Validator.validateString(args.id, 'id');
}
/**
* Validate parameters for n8n_create_workflow tool
*/
static validateCreateWorkflow(args: any): ValidationResult {
const nameResult = Validator.validateString(args.name, 'name');
const nodesResult = Validator.validateArray(args.nodes, 'nodes');
const connectionsResult = Validator.validateObject(args.connections, 'connections');
const settingsResult = args.settings ?
Validator.validateObject(args.settings, 'settings', false) :
{ valid: true, errors: [] };
return Validator.combineResults(nameResult, nodesResult, connectionsResult, settingsResult);
}
}
```
--------------------------------------------------------------------------------
/tests/examples/using-database-utils.test.ts:
--------------------------------------------------------------------------------
```typescript
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import {
createTestDatabase,
seedTestNodes,
seedTestTemplates,
createTestNode,
createTestTemplate,
createDatabaseSnapshot,
restoreDatabaseSnapshot,
loadFixtures,
dbHelpers,
TestDatabase
} from '../utils/database-utils';
import * as path from 'path';
/**
* Example test file showing how to use database utilities
* in real test scenarios
*/
describe('Example: Using Database Utils in Tests', () => {
let testDb: TestDatabase;
// Always cleanup after each test
afterEach(async () => {
if (testDb) {
await testDb.cleanup();
}
});
describe('Basic Database Setup', () => {
it('should setup a test database for unit testing', async () => {
// Create an in-memory database for fast tests
testDb = await createTestDatabase();
// Seed some test data
await seedTestNodes(testDb.nodeRepository, [
{ nodeType: 'nodes-base.myCustomNode', displayName: 'My Custom Node' }
]);
// Use the repository to test your logic
const node = testDb.nodeRepository.getNode('nodes-base.myCustomNode');
expect(node).toBeDefined();
expect(node.displayName).toBe('My Custom Node');
});
it('should setup a file-based database for integration testing', async () => {
// Create a file-based database when you need persistence
testDb = await createTestDatabase({
inMemory: false,
dbPath: path.join(__dirname, '../temp/integration-test.db')
});
// The database will persist until cleanup() is called
await seedTestNodes(testDb.nodeRepository);
// You can verify the file exists
expect(testDb.path).toContain('integration-test.db');
});
});
describe('Testing with Fixtures', () => {
it('should load complex test scenarios from fixtures', async () => {
testDb = await createTestDatabase();
// Load fixtures from JSON file
const fixturePath = path.join(__dirname, '../fixtures/database/test-nodes.json');
await loadFixtures(testDb.adapter, fixturePath);
// Verify the fixture data was loaded
expect(dbHelpers.countRows(testDb.adapter, 'nodes')).toBe(3);
expect(dbHelpers.countRows(testDb.adapter, 'templates')).toBe(1);
// Test your business logic with the fixture data
const slackNode = testDb.nodeRepository.getNode('nodes-base.slack');
expect(slackNode.isAITool).toBe(true);
expect(slackNode.category).toBe('Communication');
});
});
describe('Testing Repository Methods', () => {
beforeEach(async () => {
testDb = await createTestDatabase();
});
it('should test custom repository queries', async () => {
// Seed nodes with specific properties
await seedTestNodes(testDb.nodeRepository, [
{ nodeType: 'nodes-base.ai1', isAITool: true },
{ nodeType: 'nodes-base.ai2', isAITool: true },
{ nodeType: 'nodes-base.regular', isAITool: false }
]);
// Test custom queries
const aiNodes = testDb.nodeRepository.getAITools();
expect(aiNodes).toHaveLength(4); // 2 custom + 2 default (httpRequest, slack)
// Use dbHelpers for quick checks
const allNodeTypes = dbHelpers.getAllNodeTypes(testDb.adapter);
expect(allNodeTypes).toContain('nodes-base.ai1');
expect(allNodeTypes).toContain('nodes-base.ai2');
});
});
describe('Testing with Snapshots', () => {
it('should test rollback scenarios using snapshots', async () => {
testDb = await createTestDatabase();
// Setup initial state
await seedTestNodes(testDb.nodeRepository);
await seedTestTemplates(testDb.templateRepository);
// Create a snapshot of the good state
const snapshot = await createDatabaseSnapshot(testDb.adapter);
// Perform operations that might fail
try {
// Simulate a complex operation
await testDb.nodeRepository.saveNode(createTestNode({
nodeType: 'nodes-base.problematic',
displayName: 'This might cause issues'
}));
// Simulate an error
throw new Error('Something went wrong!');
} catch (error) {
// Restore to the known good state
await restoreDatabaseSnapshot(testDb.adapter, snapshot);
}
// Verify we're back to the original state
expect(dbHelpers.countRows(testDb.adapter, 'nodes')).toBe(snapshot.metadata.nodeCount);
expect(dbHelpers.nodeExists(testDb.adapter, 'nodes-base.problematic')).toBe(false);
});
});
describe('Testing Database Performance', () => {
it('should measure performance of database operations', async () => {
testDb = await createTestDatabase();
// Measure bulk insert performance
const insertDuration = await measureDatabaseOperation('Bulk Insert', async () => {
const nodes = Array.from({ length: 100 }, (_, i) =>
createTestNode({
nodeType: `nodes-base.perf${i}`,
displayName: `Performance Test Node ${i}`
})
);
for (const node of nodes) {
testDb.nodeRepository.saveNode(node);
}
});
// Measure query performance
const queryDuration = await measureDatabaseOperation('Query All Nodes', async () => {
const allNodes = testDb.nodeRepository.getAllNodes();
expect(allNodes.length).toBe(100); // 100 bulk nodes (no defaults as we're not using seedTestNodes)
});
// Assert reasonable performance
expect(insertDuration).toBeLessThan(1000); // Should complete in under 1 second
expect(queryDuration).toBeLessThan(100); // Queries should be fast
});
});
describe('Testing with Different Database States', () => {
it('should test behavior with empty database', async () => {
testDb = await createTestDatabase();
// Test with empty database
expect(dbHelpers.countRows(testDb.adapter, 'nodes')).toBe(0);
const nonExistentNode = testDb.nodeRepository.getNode('nodes-base.doesnotexist');
expect(nonExistentNode).toBeNull();
});
it('should test behavior with populated database', async () => {
testDb = await createTestDatabase();
// Populate with many nodes
const nodes = Array.from({ length: 50 }, (_, i) => ({
nodeType: `nodes-base.node${i}`,
displayName: `Node ${i}`,
category: i % 2 === 0 ? 'Category A' : 'Category B'
}));
await seedTestNodes(testDb.nodeRepository, nodes);
// Test queries on populated database
const allNodes = dbHelpers.getAllNodeTypes(testDb.adapter);
expect(allNodes.length).toBe(53); // 50 custom + 3 default
// Test filtering by category
const categoryANodes = testDb.adapter
.prepare('SELECT COUNT(*) as count FROM nodes WHERE category = ?')
.get('Category A') as { count: number };
expect(categoryANodes.count).toBe(25);
});
});
describe('Testing Error Scenarios', () => {
it('should handle database errors gracefully', async () => {
testDb = await createTestDatabase();
// Test saving invalid data
const invalidNode = createTestNode({
nodeType: '', // Invalid: empty nodeType
displayName: 'Invalid Node'
});
// SQLite allows NULL in PRIMARY KEY, so test with empty string instead
// which should violate any business logic constraints
// For now, we'll just verify the save doesn't crash
expect(() => {
testDb.nodeRepository.saveNode(invalidNode);
}).not.toThrow();
// Database should still be functional
await seedTestNodes(testDb.nodeRepository);
expect(dbHelpers.countRows(testDb.adapter, 'nodes')).toBe(4); // 3 default nodes + 1 invalid node
});
});
describe('Testing with Transactions', () => {
it('should test transactional behavior', async () => {
testDb = await createTestDatabase();
// Seed initial data
await seedTestNodes(testDb.nodeRepository);
const initialCount = dbHelpers.countRows(testDb.adapter, 'nodes');
// Use transaction for atomic operations
try {
testDb.adapter.transaction(() => {
// Add multiple nodes atomically
testDb.nodeRepository.saveNode(createTestNode({ nodeType: 'nodes-base.tx1' }));
testDb.nodeRepository.saveNode(createTestNode({ nodeType: 'nodes-base.tx2' }));
// Simulate error in transaction
throw new Error('Transaction failed');
});
} catch (error) {
// Transaction should have rolled back
}
// Verify no nodes were added
const finalCount = dbHelpers.countRows(testDb.adapter, 'nodes');
expect(finalCount).toBe(initialCount);
expect(dbHelpers.nodeExists(testDb.adapter, 'nodes-base.tx1')).toBe(false);
expect(dbHelpers.nodeExists(testDb.adapter, 'nodes-base.tx2')).toBe(false);
});
});
});
// Helper function for performance measurement
async function measureDatabaseOperation(
name: string,
operation: () => Promise<void>
): Promise<number> {
const start = performance.now();
await operation();
const duration = performance.now() - start;
console.log(`[Performance] ${name}: ${duration.toFixed(2)}ms`);
return duration;
}
```
--------------------------------------------------------------------------------
/src/scripts/test-execution-filtering.ts:
--------------------------------------------------------------------------------
```typescript
#!/usr/bin/env node
/**
* Manual testing script for execution filtering feature
*
* This script demonstrates all modes of the n8n_get_execution tool
* with various filtering options.
*
* Usage: npx tsx src/scripts/test-execution-filtering.ts
*/
import {
generatePreview,
filterExecutionData,
processExecution,
} from '../services/execution-processor';
import { ExecutionFilterOptions, Execution, ExecutionStatus } from '../types/n8n-api';
console.log('='.repeat(80));
console.log('Execution Filtering Feature - Manual Test Suite');
console.log('='.repeat(80));
console.log('');
/**
* Mock execution factory (simplified version for testing)
*/
function createTestExecution(itemCount: number): Execution {
const items = Array.from({ length: itemCount }, (_, i) => ({
json: {
id: i + 1,
name: `Item ${i + 1}`,
email: `user${i}@example.com`,
value: Math.random() * 1000,
metadata: {
createdAt: new Date().toISOString(),
tags: ['tag1', 'tag2'],
},
},
}));
return {
id: `test-exec-${Date.now()}`,
workflowId: 'workflow-test',
status: ExecutionStatus.SUCCESS,
mode: 'manual',
finished: true,
startedAt: '2024-01-01T10:00:00.000Z',
stoppedAt: '2024-01-01T10:00:05.000Z',
data: {
resultData: {
runData: {
'HTTP Request': [
{
startTime: Date.now(),
executionTime: 234,
data: {
main: [items],
},
},
],
'Filter': [
{
startTime: Date.now(),
executionTime: 45,
data: {
main: [items.slice(0, Math.floor(itemCount / 2))],
},
},
],
'Set': [
{
startTime: Date.now(),
executionTime: 12,
data: {
main: [items.slice(0, 5)],
},
},
],
},
},
},
};
}
/**
* Test 1: Preview Mode
*/
console.log('📊 TEST 1: Preview Mode (No Data, Just Structure)');
console.log('-'.repeat(80));
const execution1 = createTestExecution(50);
const { preview, recommendation } = generatePreview(execution1);
console.log('Preview:', JSON.stringify(preview, null, 2));
console.log('\nRecommendation:', JSON.stringify(recommendation, null, 2));
console.log('\n✅ Preview mode shows structure without consuming tokens for data\n');
/**
* Test 2: Summary Mode (Default)
*/
console.log('📝 TEST 2: Summary Mode (2 items per node)');
console.log('-'.repeat(80));
const execution2 = createTestExecution(50);
const summaryResult = filterExecutionData(execution2, { mode: 'summary' });
console.log('Summary Mode Result:');
console.log('- Mode:', summaryResult.mode);
console.log('- Summary:', JSON.stringify(summaryResult.summary, null, 2));
console.log('- HTTP Request items shown:', summaryResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown);
console.log('- HTTP Request truncated:', summaryResult.nodes?.['HTTP Request']?.data?.metadata.truncated);
console.log('\n✅ Summary mode returns 2 items per node (safe default)\n');
/**
* Test 3: Filtered Mode with Custom Limit
*/
console.log('🎯 TEST 3: Filtered Mode (Custom itemsLimit: 5)');
console.log('-'.repeat(80));
const execution3 = createTestExecution(100);
const filteredResult = filterExecutionData(execution3, {
mode: 'filtered',
itemsLimit: 5,
});
console.log('Filtered Mode Result:');
console.log('- Items shown per node:', filteredResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown);
console.log('- Total items available:', filteredResult.nodes?.['HTTP Request']?.data?.metadata.totalItems);
console.log('- More data available:', filteredResult.summary?.hasMoreData);
console.log('\n✅ Filtered mode allows custom item limits\n');
/**
* Test 4: Node Name Filtering
*/
console.log('🔍 TEST 4: Filter to Specific Nodes');
console.log('-'.repeat(80));
const execution4 = createTestExecution(30);
const nodeFilterResult = filterExecutionData(execution4, {
mode: 'filtered',
nodeNames: ['HTTP Request'],
itemsLimit: 3,
});
console.log('Node Filter Result:');
console.log('- Nodes in result:', Object.keys(nodeFilterResult.nodes || {}));
console.log('- Expected: ["HTTP Request"]');
console.log('- Executed nodes:', nodeFilterResult.summary?.executedNodes);
console.log('- Total nodes:', nodeFilterResult.summary?.totalNodes);
console.log('\n✅ Can filter to specific nodes only\n');
/**
* Test 5: Structure-Only Mode (itemsLimit: 0)
*/
console.log('🏗️ TEST 5: Structure-Only Mode (itemsLimit: 0)');
console.log('-'.repeat(80));
const execution5 = createTestExecution(100);
const structureResult = filterExecutionData(execution5, {
mode: 'filtered',
itemsLimit: 0,
});
console.log('Structure-Only Result:');
console.log('- Items shown:', structureResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown);
console.log('- First item (structure):', JSON.stringify(
structureResult.nodes?.['HTTP Request']?.data?.output?.[0]?.[0],
null,
2
));
console.log('\n✅ Structure-only mode shows data shape without values\n');
/**
* Test 6: Full Mode
*/
console.log('💾 TEST 6: Full Mode (All Data)');
console.log('-'.repeat(80));
const execution6 = createTestExecution(5); // Small dataset
const fullResult = filterExecutionData(execution6, { mode: 'full' });
console.log('Full Mode Result:');
console.log('- Items shown:', fullResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown);
console.log('- Total items:', fullResult.nodes?.['HTTP Request']?.data?.metadata.totalItems);
console.log('- Truncated:', fullResult.nodes?.['HTTP Request']?.data?.metadata.truncated);
console.log('\n✅ Full mode returns all data (use with caution)\n');
/**
* Test 7: Backward Compatibility
*/
console.log('🔄 TEST 7: Backward Compatibility (No Filtering)');
console.log('-'.repeat(80));
const execution7 = createTestExecution(10);
const legacyResult = processExecution(execution7, {});
console.log('Legacy Result:');
console.log('- Returns original execution:', legacyResult === execution7);
console.log('- Type:', typeof legacyResult);
console.log('\n✅ Backward compatible - no options returns original execution\n');
/**
* Test 8: Input Data Inclusion
*/
console.log('🔗 TEST 8: Include Input Data');
console.log('-'.repeat(80));
const execution8 = createTestExecution(5);
const inputDataResult = filterExecutionData(execution8, {
mode: 'filtered',
itemsLimit: 2,
includeInputData: true,
});
console.log('Input Data Result:');
console.log('- Has input data:', !!inputDataResult.nodes?.['HTTP Request']?.data?.input);
console.log('- Has output data:', !!inputDataResult.nodes?.['HTTP Request']?.data?.output);
console.log('\n✅ Can include input data for debugging\n');
/**
* Test 9: itemsLimit Validation
*/
console.log('⚠️ TEST 9: itemsLimit Validation');
console.log('-'.repeat(80));
const execution9 = createTestExecution(50);
// Test negative value
const negativeResult = filterExecutionData(execution9, {
mode: 'filtered',
itemsLimit: -5,
});
console.log('- Negative itemsLimit (-5) handled:', negativeResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown === 2);
// Test very large value
const largeResult = filterExecutionData(execution9, {
mode: 'filtered',
itemsLimit: 999999,
});
console.log('- Large itemsLimit (999999) capped:', (largeResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown || 0) <= 1000);
// Test unlimited (-1)
const unlimitedResult = filterExecutionData(execution9, {
mode: 'filtered',
itemsLimit: -1,
});
console.log('- Unlimited itemsLimit (-1) works:', unlimitedResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown === 50);
console.log('\n✅ itemsLimit validation works correctly\n');
/**
* Test 10: Recommendation Following
*/
console.log('🎯 TEST 10: Follow Recommendation Workflow');
console.log('-'.repeat(80));
const execution10 = createTestExecution(100);
const { preview: preview10, recommendation: rec10 } = generatePreview(execution10);
console.log('1. Preview shows:', {
totalItems: preview10.nodes['HTTP Request']?.itemCounts.output,
sizeKB: preview10.estimatedSizeKB,
});
console.log('\n2. Recommendation:', {
canFetchFull: rec10.canFetchFull,
suggestedMode: rec10.suggestedMode,
suggestedItemsLimit: rec10.suggestedItemsLimit,
reason: rec10.reason,
});
// Follow recommendation
const options: ExecutionFilterOptions = {
mode: rec10.suggestedMode,
itemsLimit: rec10.suggestedItemsLimit,
};
const recommendedResult = filterExecutionData(execution10, options);
console.log('\n3. Following recommendation gives:', {
mode: recommendedResult.mode,
itemsShown: recommendedResult.nodes?.['HTTP Request']?.data?.metadata.itemsShown,
hasMoreData: recommendedResult.summary?.hasMoreData,
});
console.log('\n✅ Recommendation workflow helps make optimal choices\n');
/**
* Summary
*/
console.log('='.repeat(80));
console.log('✨ All Tests Completed Successfully!');
console.log('='.repeat(80));
console.log('\n🎉 Execution Filtering Feature is Working!\n');
console.log('Key Takeaways:');
console.log('1. Always use preview mode first for unknown datasets');
console.log('2. Follow the recommendation for optimal token usage');
console.log('3. Use nodeNames to filter to relevant nodes');
console.log('4. itemsLimit: 0 shows structure without data');
console.log('5. itemsLimit: -1 returns unlimited items (use with caution)');
console.log('6. Summary mode (2 items) is a safe default');
console.log('7. Full mode should only be used for small datasets');
console.log('');
```
--------------------------------------------------------------------------------
/tests/utils/builders/workflow.builder.ts:
--------------------------------------------------------------------------------
```typescript
import { v4 as uuidv4 } from 'uuid';
// Type definitions
export interface INodeParameters {
[key: string]: any;
}
export interface INodeCredentials {
[credentialType: string]: {
id?: string;
name: string;
};
}
export interface INode {
id: string;
name: string;
type: string;
typeVersion: number;
position: [number, number];
parameters: INodeParameters;
credentials?: INodeCredentials;
disabled?: boolean;
notes?: string;
continueOnFail?: boolean;
retryOnFail?: boolean;
maxTries?: number;
waitBetweenTries?: number;
onError?: 'continueRegularOutput' | 'continueErrorOutput' | 'stopWorkflow';
}
export interface IConnection {
node: string;
type: 'main';
index: number;
}
export interface IConnections {
[nodeId: string]: {
[outputType: string]: Array<Array<IConnection | null>>;
};
}
export interface IWorkflowSettings {
executionOrder?: 'v0' | 'v1';
saveDataErrorExecution?: 'all' | 'none';
saveDataSuccessExecution?: 'all' | 'none';
saveManualExecutions?: boolean;
saveExecutionProgress?: boolean;
executionTimeout?: number;
errorWorkflow?: string;
timezone?: string;
}
export interface IWorkflow {
id?: string;
name: string;
nodes: INode[];
connections: IConnections;
active?: boolean;
settings?: IWorkflowSettings;
staticData?: any;
tags?: string[];
pinData?: any;
versionId?: string;
meta?: {
instanceId?: string;
};
}
// Type guard for INode validation
function isValidNode(node: any): node is INode {
return (
typeof node === 'object' &&
typeof node.id === 'string' &&
typeof node.name === 'string' &&
typeof node.type === 'string' &&
typeof node.typeVersion === 'number' &&
Array.isArray(node.position) &&
node.position.length === 2 &&
typeof node.position[0] === 'number' &&
typeof node.position[1] === 'number' &&
typeof node.parameters === 'object'
);
}
export class WorkflowBuilder {
private workflow: IWorkflow;
private nodeCounter = 0;
private defaultPosition: [number, number] = [250, 300];
private positionIncrement = 280;
constructor(name = 'Test Workflow') {
this.workflow = {
name,
nodes: [],
connections: {},
active: false,
settings: {
executionOrder: 'v1',
saveDataErrorExecution: 'all',
saveDataSuccessExecution: 'all',
saveManualExecutions: true,
saveExecutionProgress: true,
},
};
}
/**
* Add a node to the workflow
*/
addNode(node: Partial<INode> & { type: string; typeVersion: number }): this {
const nodeId = node.id || uuidv4();
const nodeName = node.name || `${node.type} ${++this.nodeCounter}`;
const fullNode: INode = {
...node, // Spread first to allow overrides
id: nodeId,
name: nodeName,
type: node.type,
typeVersion: node.typeVersion,
position: node.position || this.getNextPosition(),
parameters: node.parameters || {},
};
this.workflow.nodes.push(fullNode);
return this;
}
/**
* Add a webhook node (common trigger)
*/
addWebhookNode(options: Partial<INode> = {}): this {
return this.addNode({
type: 'n8n-nodes-base.webhook',
typeVersion: 2,
parameters: {
path: 'test-webhook',
method: 'POST',
responseMode: 'onReceived',
responseData: 'allEntries',
responsePropertyName: 'data',
...options.parameters,
},
...options,
});
}
/**
* Add a Slack node
*/
addSlackNode(options: Partial<INode> = {}): this {
return this.addNode({
type: 'n8n-nodes-base.slack',
typeVersion: 2.2,
parameters: {
resource: 'message',
operation: 'post',
channel: '#general',
text: 'Test message',
...options.parameters,
},
credentials: {
slackApi: {
name: 'Slack Account',
},
},
...options,
});
}
/**
* Add an HTTP Request node
*/
addHttpRequestNode(options: Partial<INode> = {}): this {
return this.addNode({
type: 'n8n-nodes-base.httpRequest',
typeVersion: 4.2,
parameters: {
method: 'GET',
url: 'https://api.example.com/data',
authentication: 'none',
...options.parameters,
},
...options,
});
}
/**
* Add a Code node
*/
addCodeNode(options: Partial<INode> = {}): this {
return this.addNode({
type: 'n8n-nodes-base.code',
typeVersion: 2,
parameters: {
mode: 'runOnceForAllItems',
language: 'javaScript',
jsCode: 'return items;',
...options.parameters,
},
...options,
});
}
/**
* Add an IF node
*/
addIfNode(options: Partial<INode> = {}): this {
return this.addNode({
type: 'n8n-nodes-base.if',
typeVersion: 2,
parameters: {
conditions: {
options: {
caseSensitive: true,
leftValue: '',
typeValidation: 'strict',
},
conditions: [
{
id: uuidv4(),
leftValue: '={{ $json.value }}',
rightValue: 'test',
operator: {
type: 'string',
operation: 'equals',
},
},
],
combinator: 'and',
},
...options.parameters,
},
...options,
});
}
/**
* Add an AI Agent node
*/
addAiAgentNode(options: Partial<INode> = {}): this {
return this.addNode({
type: '@n8n/n8n-nodes-langchain.agent',
typeVersion: 1.7,
parameters: {
agent: 'conversationalAgent',
promptType: 'define',
text: '={{ $json.prompt }}',
...options.parameters,
},
...options,
});
}
/**
* Connect two nodes
* @param sourceNodeId - ID of the source node
* @param targetNodeId - ID of the target node
* @param sourceOutput - Output index on the source node (default: 0)
* @param targetInput - Input index on the target node (default: 0)
* @returns The WorkflowBuilder instance for chaining
* @example
* builder.connect('webhook-1', 'slack-1', 0, 0);
*/
connect(
sourceNodeId: string,
targetNodeId: string,
sourceOutput = 0,
targetInput = 0
): this {
// Validate that both nodes exist
const sourceNode = this.findNode(sourceNodeId);
const targetNode = this.findNode(targetNodeId);
if (!sourceNode) {
throw new Error(`Source node not found: ${sourceNodeId}`);
}
if (!targetNode) {
throw new Error(`Target node not found: ${targetNodeId}`);
}
if (!this.workflow.connections[sourceNodeId]) {
this.workflow.connections[sourceNodeId] = {
main: [],
};
}
// Ensure the output array exists
while (this.workflow.connections[sourceNodeId].main.length <= sourceOutput) {
this.workflow.connections[sourceNodeId].main.push([]);
}
// Add the connection
this.workflow.connections[sourceNodeId].main[sourceOutput].push({
node: targetNodeId,
type: 'main',
index: targetInput,
});
return this;
}
/**
* Connect nodes in sequence
*/
connectSequentially(nodeIds: string[]): this {
for (let i = 0; i < nodeIds.length - 1; i++) {
this.connect(nodeIds[i], nodeIds[i + 1]);
}
return this;
}
/**
* Set workflow settings
*/
setSettings(settings: IWorkflowSettings): this {
this.workflow.settings = {
...this.workflow.settings,
...settings,
};
return this;
}
/**
* Set workflow as active
*/
setActive(active = true): this {
this.workflow.active = active;
return this;
}
/**
* Add tags to the workflow
*/
addTags(...tags: string[]): this {
this.workflow.tags = [...(this.workflow.tags || []), ...tags];
return this;
}
/**
* Set workflow ID
*/
setId(id: string): this {
this.workflow.id = id;
return this;
}
/**
* Build and return the workflow
*/
build(): IWorkflow {
// Return a deep clone to prevent modifications
return JSON.parse(JSON.stringify(this.workflow));
}
/**
* Get the next node position
*/
private getNextPosition(): [number, number] {
const nodeCount = this.workflow.nodes.length;
return [
this.defaultPosition[0] + (nodeCount * this.positionIncrement),
this.defaultPosition[1],
];
}
/**
* Find a node by name or ID
*/
findNode(nameOrId: string): INode | undefined {
return this.workflow.nodes.find(
node => node.name === nameOrId || node.id === nameOrId
);
}
/**
* Get all node IDs
*/
getNodeIds(): string[] {
return this.workflow.nodes.map(node => node.id);
}
/**
* Add a custom node type
*/
addCustomNode(type: string, typeVersion: number, parameters: INodeParameters, options: Partial<INode> = {}): this {
return this.addNode({
type,
typeVersion,
parameters,
...options,
});
}
/**
* Clear all nodes and connections
*/
clear(): this {
this.workflow.nodes = [];
this.workflow.connections = {};
this.nodeCounter = 0;
return this;
}
/**
* Clone the current workflow builder
*/
clone(): WorkflowBuilder {
const cloned = new WorkflowBuilder(this.workflow.name);
cloned.workflow = JSON.parse(JSON.stringify(this.workflow));
cloned.nodeCounter = this.nodeCounter;
return cloned;
}
}
// Export a factory function for convenience
export function createWorkflow(name?: string): WorkflowBuilder {
return new WorkflowBuilder(name);
}
```
--------------------------------------------------------------------------------
/tests/test-database-extraction.js:
--------------------------------------------------------------------------------
```javascript
#!/usr/bin/env node
/**
* Test node extraction for database storage
* Focus on extracting known nodes with proper structure for DB storage
*/
const fs = require('fs').promises;
const path = require('path');
const crypto = require('crypto');
// Import our extractor
const { NodeSourceExtractor } = require('../dist/utils/node-source-extractor');
// Known n8n nodes to test
const KNOWN_NODES = [
// Core nodes
{ type: 'n8n-nodes-base.Function', package: 'n8n-nodes-base', name: 'Function' },
{ type: 'n8n-nodes-base.Webhook', package: 'n8n-nodes-base', name: 'Webhook' },
{ type: 'n8n-nodes-base.HttpRequest', package: 'n8n-nodes-base', name: 'HttpRequest' },
{ type: 'n8n-nodes-base.If', package: 'n8n-nodes-base', name: 'If' },
{ type: 'n8n-nodes-base.SplitInBatches', package: 'n8n-nodes-base', name: 'SplitInBatches' },
// AI nodes
{ type: '@n8n/n8n-nodes-langchain.Agent', package: '@n8n/n8n-nodes-langchain', name: 'Agent' },
{ type: '@n8n/n8n-nodes-langchain.OpenAiAssistant', package: '@n8n/n8n-nodes-langchain', name: 'OpenAiAssistant' },
{ type: '@n8n/n8n-nodes-langchain.ChainLlm', package: '@n8n/n8n-nodes-langchain', name: 'ChainLlm' },
// Integration nodes
{ type: 'n8n-nodes-base.Airtable', package: 'n8n-nodes-base', name: 'Airtable' },
{ type: 'n8n-nodes-base.GoogleSheets', package: 'n8n-nodes-base', name: 'GoogleSheets' },
{ type: 'n8n-nodes-base.Slack', package: 'n8n-nodes-base', name: 'Slack' },
{ type: 'n8n-nodes-base.Discord', package: 'n8n-nodes-base', name: 'Discord' },
];
// Database schema for storing nodes
const DB_SCHEMA = `
-- Main nodes table
CREATE TABLE IF NOT EXISTS nodes (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
node_type VARCHAR(255) UNIQUE NOT NULL,
name VARCHAR(255) NOT NULL,
package_name VARCHAR(255) NOT NULL,
display_name VARCHAR(255),
description TEXT,
version VARCHAR(50),
code_hash VARCHAR(64) NOT NULL,
code_length INTEGER NOT NULL,
source_location TEXT NOT NULL,
has_credentials BOOLEAN DEFAULT FALSE,
extracted_at TIMESTAMP NOT NULL DEFAULT NOW(),
updated_at TIMESTAMP NOT NULL DEFAULT NOW(),
CONSTRAINT idx_node_type UNIQUE (node_type),
INDEX idx_package_name (package_name),
INDEX idx_code_hash (code_hash)
);
-- Source code storage
CREATE TABLE IF NOT EXISTS node_source_code (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
node_id UUID NOT NULL REFERENCES nodes(id) ON DELETE CASCADE,
source_code TEXT NOT NULL,
minified_code TEXT,
source_map TEXT,
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
CONSTRAINT idx_node_source UNIQUE (node_id)
);
-- Credentials definitions
CREATE TABLE IF NOT EXISTS node_credentials (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
node_id UUID NOT NULL REFERENCES nodes(id) ON DELETE CASCADE,
credential_type VARCHAR(255) NOT NULL,
credential_code TEXT NOT NULL,
required_fields JSONB,
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
INDEX idx_node_credentials (node_id)
);
-- Package metadata
CREATE TABLE IF NOT EXISTS node_packages (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
package_name VARCHAR(255) UNIQUE NOT NULL,
version VARCHAR(50),
description TEXT,
author VARCHAR(255),
license VARCHAR(50),
repository_url TEXT,
metadata JSONB,
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
updated_at TIMESTAMP NOT NULL DEFAULT NOW()
);
-- Node dependencies
CREATE TABLE IF NOT EXISTS node_dependencies (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
node_id UUID NOT NULL REFERENCES nodes(id) ON DELETE CASCADE,
depends_on_node_id UUID NOT NULL REFERENCES nodes(id),
dependency_type VARCHAR(50), -- 'extends', 'imports', 'requires'
created_at TIMESTAMP NOT NULL DEFAULT NOW(),
CONSTRAINT unique_dependency UNIQUE (node_id, depends_on_node_id)
);
`;
async function main() {
console.log('=== n8n Node Extraction for Database Storage Test ===\n');
const extractor = new NodeSourceExtractor();
const results = {
tested: 0,
extracted: 0,
failed: 0,
nodes: [],
errors: [],
totalSize: 0
};
// Create output directory
const outputDir = path.join(__dirname, 'extracted-nodes-db');
await fs.mkdir(outputDir, { recursive: true });
console.log(`Testing extraction of ${KNOWN_NODES.length} known nodes...\n`);
// Extract each node
for (const nodeConfig of KNOWN_NODES) {
console.log(`📦 Extracting: ${nodeConfig.type}`);
results.tested++;
try {
const startTime = Date.now();
const nodeInfo = await extractor.extractNodeSource(nodeConfig.type);
const extractTime = Date.now() - startTime;
// Calculate hash for deduplication
const codeHash = crypto.createHash('sha256').update(nodeInfo.sourceCode).digest('hex');
// Prepare database record
const dbRecord = {
// Primary data
node_type: nodeConfig.type,
name: nodeConfig.name,
package_name: nodeConfig.package,
code_hash: codeHash,
code_length: nodeInfo.sourceCode.length,
source_location: nodeInfo.location,
has_credentials: !!nodeInfo.credentialCode,
// Source code (separate table in real DB)
source_code: nodeInfo.sourceCode,
credential_code: nodeInfo.credentialCode,
// Package info
package_info: nodeInfo.packageInfo,
// Metadata
extraction_time_ms: extractTime,
extracted_at: new Date().toISOString()
};
results.nodes.push(dbRecord);
results.extracted++;
results.totalSize += nodeInfo.sourceCode.length;
console.log(` ✅ Success: ${nodeInfo.sourceCode.length} bytes (${extractTime}ms)`);
console.log(` 📍 Location: ${nodeInfo.location}`);
console.log(` 🔑 Hash: ${codeHash.substring(0, 12)}...`);
if (nodeInfo.credentialCode) {
console.log(` 🔐 Has credentials: ${nodeInfo.credentialCode.length} bytes`);
}
// Save individual node data
const nodeFile = path.join(outputDir, `${nodeConfig.package}__${nodeConfig.name}.json`);
await fs.writeFile(nodeFile, JSON.stringify(dbRecord, null, 2));
} catch (error) {
results.failed++;
results.errors.push({
node: nodeConfig.type,
error: error.message
});
console.log(` ❌ Failed: ${error.message}`);
}
console.log('');
}
// Generate summary report
const successRate = ((results.extracted / results.tested) * 100).toFixed(1);
console.log('='.repeat(60));
console.log('EXTRACTION SUMMARY');
console.log('='.repeat(60));
console.log(`Total nodes tested: ${results.tested}`);
console.log(`Successfully extracted: ${results.extracted} (${successRate}%)`);
console.log(`Failed: ${results.failed}`);
console.log(`Total code size: ${(results.totalSize / 1024).toFixed(2)} KB`);
console.log(`Average node size: ${(results.totalSize / results.extracted / 1024).toFixed(2)} KB`);
// Test database insertion simulation
console.log('\n📊 Database Storage Simulation:');
console.log('--------------------------------');
if (results.extracted > 0) {
// Group by package
const packages = {};
results.nodes.forEach(node => {
if (!packages[node.package_name]) {
packages[node.package_name] = {
name: node.package_name,
nodes: [],
totalSize: 0
};
}
packages[node.package_name].nodes.push(node.name);
packages[node.package_name].totalSize += node.code_length;
});
console.log('\nPackages:');
Object.values(packages).forEach(pkg => {
console.log(` 📦 ${pkg.name}`);
console.log(` Nodes: ${pkg.nodes.length}`);
console.log(` Total size: ${(pkg.totalSize / 1024).toFixed(2)} KB`);
console.log(` Nodes: ${pkg.nodes.join(', ')}`);
});
// Save database-ready JSON
const dbData = {
schema: DB_SCHEMA,
extracted_at: new Date().toISOString(),
statistics: {
total_nodes: results.extracted,
total_size_bytes: results.totalSize,
packages: Object.keys(packages).length,
success_rate: successRate
},
nodes: results.nodes
};
const dbFile = path.join(outputDir, 'database-import.json');
await fs.writeFile(dbFile, JSON.stringify(dbData, null, 2));
console.log(`\n💾 Database import file saved: ${dbFile}`);
// Create SQL insert statements
const sqlFile = path.join(outputDir, 'insert-nodes.sql');
let sql = '-- Auto-generated SQL for n8n nodes\n\n';
results.nodes.forEach(node => {
sql += `-- Node: ${node.node_type}\n`;
sql += `INSERT INTO nodes (node_type, name, package_name, code_hash, code_length, source_location, has_credentials)\n`;
sql += `VALUES ('${node.node_type}', '${node.name}', '${node.package_name}', '${node.code_hash}', ${node.code_length}, '${node.source_location}', ${node.has_credentials});\n\n`;
});
await fs.writeFile(sqlFile, sql);
console.log(`📝 SQL insert file saved: ${sqlFile}`);
}
// Save full report
const reportFile = path.join(outputDir, 'extraction-report.json');
await fs.writeFile(reportFile, JSON.stringify(results, null, 2));
console.log(`\n📄 Full report saved: ${reportFile}`);
// Show any errors
if (results.errors.length > 0) {
console.log('\n⚠️ Extraction Errors:');
results.errors.forEach(err => {
console.log(` - ${err.node}: ${err.error}`);
});
}
console.log('\n✨ Database extraction test completed!');
console.log(`📁 Results saved in: ${outputDir}`);
// Exit with appropriate code
process.exit(results.failed > 0 ? 1 : 0);
}
// Run the test
main().catch(error => {
console.error('Fatal error:', error);
process.exit(1);
});
```