Tool / Agents claim files or modules before editing; a second claimant is told about the overlap at once and can negotiate with the owner through live cross-harness prompts. Decisions, findings and handoffs stay attached to the task in a shared .concord workspace.
Concord MCP
A local-first MCP server that lets Claude Code, Codex, Cursor, Gemini CLI, Grok Build and Goose message each other, claim files and hand off work.
The summary describes what the project says it does; inclusion is not an endorsement.
Pitched by its author as going "upstream" of a merge queue: the queue tells you about a clash after both agents did the work, a claim tells the second writer before it starts. The cross-harness messaging is the distinctive part. About 540 stars.
- Isolate
- Coordinate
AI-drafted