Concord MCP

concord-mcp is a local-first communication and coordination layer for AI coding agents: it lets agents send live messages across harnesses, detect overlapping work before edits collide, share decisions, and hand off tasks with evidence, through five tools (start_work, inspect_work, update_work, transfer_work, finish_work). State is kept in a local SQLite database under a .concord/ directory rather than a hosted service. It runs over stdio only; installation is npm install -g @concord-ai/concord-mcp followed by a concord setup command that registers the server into each client's own configuration file.

The publisher is Concord AI, a UK-based organization (GitHub org Get-Concord-AI, created 2026-07-14) whose own site at getconcord.ai links its "View source" control directly to this repository and instructs installing this exact npm package. That vendor-controlled surface, not merely the io.github.* namespace, is what establishes first-party authority: the org is the vendor of the product the server fronts.

No MCP specification revision is named in the README, per-client integration docs, or package metadata; the @modelcontextprotocol/sdk ^1.30.0 dependency is a version range rather than a stated revision, so spec_status is unknown. The repository has published no security advisories. It is a young project - the org and repository were both created 2026-07-14 - but shows an active release cadence of seventeen tags through v0.10.4 (2026-09-05).