New tool2026-10-31via Product HuntAI Coding Tools for Developers

agentmash

Name: agentmash
Author: agentmash

agentmash is a coordination service for teams whose developers each run AI coding agents such as Claude Code, Codex or Cursor in the same repository: before an agent edits a file a teammate's agent is changing, it gets a short note so it can adapt instead of colliding.

Visit agentmash ↗Repository ↗

FreemiumMIT (client)JavaScript (Node.js CLI, no runtime dependencies)★ 8 (as of 2026-11-01)by agentmash

Why it matters

For small dev teams where several people let AI agents edit the same codebase at once, it catches overlapping edits before they turn into merge conflicts, without locking files.

Highlights

Hooks run before and after each agent edit, reporting which file changed and why and warning an agent when a teammate's agent is in the same file.
Supports about 20 agents, including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Cline, OpenCode and goose, plus Continue and Zed through an MCP server.
For JavaScript and TypeScript it follows imports and exports, so editing a function a teammate just renamed also triggers a note.
Includes a team chat and a read-only 'ask a teammate's agent' command, and a set of 22 ready-made Claude Code subagents.
Code text stays local by default; the room sees file paths, branch names, line counts and the first 500 characters of prompts, which can be turned off.

Taken from the project's own README, docs or launch page. Claims about speed or accuracy are the maker's unless stated otherwise.

Try it if: Two or more people on your team run AI coding agents in the same repo and you keep untangling their merge conflicts.

Worth knowing: Only the client is open source; the coordination server runs at agentmash.dev unless you buy self-hosting. By default prompt snippets (with known secrets masked) are shared with your team's room. The homepage's before-and-after percentages are the maker's own figures.

Quick facts

Pricing	Free for up to 2 developers (1 private repo); Team $16 per developer a month billed annually; Enterprise from $15k a year with self-hosting
Free or paid	Freemium
License	MIT (client)
Language	JavaScript (Node.js CLI, no runtime dependencies)
Platform	Desktop app for macOS and Windows; CLI via npm; sign-in with GitHubnot verified
GitHub stars	★ 8 (as of 2026-11-01)
Maker	agentmash

Related ranking

See how established tools compare in Best AI Coding Tools for Developers. New releases aren't scored until we review them against the rubric.

What we couldn't verify

quick_facts.platform (Linux desktop app not mentioned)

Checked 2026-11-01 from the tool's own pages. Prices and star counts change, so confirm on the official site. Listing here is not a ranking or an endorsement.