fix: redirect debug logs to stderr for MCP stdio compatibility #88
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MCP JSON-RPC protocol requires stdout to contain only valid JSON messages. Debug logs with prefixes like [DB], [MCP], [REFLECT], etc. pollute stdout and cause Claude Desktop to fail with "Unexpected token" parse errors. Changed all tagged console.log() calls to console.error() so debug messages go to stderr instead of stdout. Affected files: - backend/src/ai/mcp.ts - backend/src/core/db.ts - backend/src/memory/reflect.ts - backend/src/migrate.ts - backend/src/server/index.ts Closes CaviraOSS#78 (superseded - that PR had merge conflicts) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Converts all remaining console.log calls to console.error across 13 files to ensure no debug output goes to stdout and pollutes the MCP JSON stream. Additional files fixed: - backend/src/core/db.ts - backend/src/core/migrate.ts - backend/src/core/models.ts - backend/src/core/telemetry.ts - backend/src/memory/decay.ts - backend/src/memory/embed.ts - backend/src/memory/reflect.ts - backend/src/migrate.ts - backend/src/ops/dynamics.ts - backend/src/ops/ingest.ts - backend/src/server/index.ts - backend/src/server/middleware/auth.ts - backend/src/temporal_graph/store.ts 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
[DB],[MCP],[REFLECT], etc. were polluting stdoutconsole.log()calls toconsole.error()so debug messages go to stderrProblem
When starting Claude Desktop with OpenMemory MCP server in stdio mode, users get errors like:
Solution
Changed all tagged console.log calls to console.error in 5 files:
backend/src/ai/mcp.ts- MCP server startup and request loggingbackend/src/core/db.ts- Database/VectorStore initialization logsbackend/src/memory/reflect.ts- Reflection job progress logsbackend/src/migrate.ts- Migration startup logbackend/src/server/index.ts- Server startup, decay, and prune logsTest Plan
console.log("[patterns remain in backend/srcNotes
This PR supersedes #78 which had developed merge conflicts due to upstream changes. Fresh implementation on current main.
🤖 Generated with Claude Code