[spranab]

Thanks for your valuable feedbacks.

SQLite handles this well in practice. saga-mcp uses WAL mode with busy_timeout=5000 and synchronous=NORMAL, so concurrent writes queue up rather than fail. The intended use case is one agent per project per session — if you had multiple agents writing to the same .tracker.db, WAL mode serializes the writes transparently.

For MCP adoption — it's growing fast. Claude Code, Claude Desktop, Cursor, and Windsurf all support it natively now. The spec is simple (JSON-RPC over stdio or SSE), so the barrier to both building and consuming MCP servers is low.