Files
n8n-mcp/package.runtime.json
Romuald Członkowski fe1309151a fix: Implement warm start pattern for session restoration (v2.19.5) (#320)
Fixes critical bug where synthetic MCP initialization had no HTTP context
to respond through, causing timeouts. Implements warm start pattern that
handles the current request immediately.

Breaking Changes:
- Deleted broken initializeMCPServerForSession() method (85 lines)
- Removed unused InitializeRequestSchema import

Implementation:
- Warm start: restore session → handle request immediately
- Client receives -32000 error → auto-retries with initialize
- Idempotency guards prevent concurrent restoration duplicates
- Cleanup on failure removes failed sessions
- Early return prevents double processing

Changes:
- src/http-server-single-session.ts: Simplified restoration (lines 1118-1247)
- tests/integration/session-restoration-warmstart.test.ts: 9 new tests
- docs/MULTI_APP_INTEGRATION.md: Warm start documentation
- CHANGELOG.md: v2.19.5 entry
- package.json: Version bump to 2.19.5
- package.runtime.json: Version bump to 2.19.5

Testing:
- 9/9 new integration tests passing
- 13/13 existing session tests passing
- No regressions in MCP tools (12 tools verified)
- Build and lint successful

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

Co-authored-by: Claude <noreply@anthropic.com>
2025-10-13 23:42:10 +02:00

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JSON

{
"name": "n8n-mcp-runtime",
"version": "2.19.5",
"description": "n8n MCP Server Runtime Dependencies Only",
"private": true,
"main": "dist/index.js",
"types": "dist/index.d.ts",
"exports": {
".": {
"types": "./dist/index.d.ts",
"require": "./dist/index.js",
"import": "./dist/index.js"
}
},
"dependencies": {
"@modelcontextprotocol/sdk": "^1.13.2",
"@supabase/supabase-js": "^2.57.4",
"express": "^5.1.0",
"express-rate-limit": "^7.1.5",
"dotenv": "^16.5.0",
"lru-cache": "^11.2.1",
"sql.js": "^1.13.0",
"uuid": "^10.0.0",
"axios": "^1.7.7"
},
"engines": {
"node": ">=16.0.0"
},
"optionalDependencies": {
"better-sqlite3": "^11.10.0"
}
}