Open-source tool 'murmur' enables Claude Code agents to coordinate file edits via MCP

·2026.10.31 01:17

Key point

The tool uses a local daemon and MCP tools to let agents check who is editing a file and negotiate changes before conflicts occur.

Open-source tool 'murmur' allows parallel AI coding agents (including Claude Code) to communicate and coordinate file edits to prevent merge conflicts.
Uses a local daemon to read git and session data, exposing three MCP tools: 'who' (status), 'send' (messaging), and 'btw' (quick questions without interruption).
A PreToolUse hook intercepts edits to files being changed by other agents, prompting the AI to message the other session and agree on ownership before proceeding.
Initial testing showed agents sent 147 messages in two days, with 48 occurring between different users' agents; the system is Apache-2.0 licensed and works with Codex, Cursor, OpenCode, Copilot CLI, and Gemini CLI.

This summary was generated automatically by AI. Check the original for the author's claims and context. Copyright belongs to the original author.

Our guide explains how the AI works. Report summary errors, attribution issues, or removal requests via Contact.