agentmash

multiplayer AI for developer teams. let your team work. all at once.

[Alim @alimwtf]

PR pairs from two different coding agents on one repo: 41.7% hit a merge conflict. Same agent twice: 19.8% (Xu et al., arXiv, July 2026).

How to run Claude Code and Codex on one repo, with tested commands.

How many agents do you run on one repo? https://t.co/pZUQVRst11

[Damir I @iskakovdev]

About 1 in 4 AI agent PRs hits a merge conflict with main

AgenticFlict checked 107K+ agent PRs against their base branch: 27.67% conflicted. Copilot 15%. Claude Code 26%. Codex 32% https://t.co/fCtr3M5HuU

[Alim @alimwtf]

run claude code and codex on one repo long enough and they'll edit the same file.

here's a repro, the manual fix, and how agentmash warns your agent before the edit. https://t.co/1SWiAzanRx

[Alim @alimwtf]

every developer on your team runs an AI agent. none of them can see the others.

agentmash fixes that:
- your agent is warned before it edits a file a teammate's agent is changing
- see what every agent is doing, live
- ask a teammate's agent. nothing runs until they approve

[Alim @alimwtf]

in one study of agent-written pull requests, 79.4% were open at the same time as another one in the same repo.

four in ten repos had any overlap, and nearly all of it came from the same agent tool.

[Damir I @iskakovdev]

🆓 🆓 GLM 5.3 Flash is available in agentmash, free through OpenCode

Run it next to Claude Code, Codex and Gemini with the same skills and rules, and hand a chat from one to another

Let your team try it on agentmash 🔥

[Alim @alimwtf]

tired of having to dm your other dev to stop touching prod?

well, that's why we're building agentmash - a context coordination layer that lets your teammates' agents see your context the moment you press enter on a prompt

[Alim @alimwtf]

developers avoid stepping on each other by talking. "i'm in the billing code today."

agents can't. they have no channel to each other. so the more agents your team runs, the more often two of them edit the same thing blind.

[Alim @alimwtf]

imagine every time you prompt claude code, all of your teammates' claude agents instantly see that prompt and adapt their tasks using your context?

[Alim @alimwtf]

the backend agent renames a route and updates every caller in the repo.

every caller on its laptop, that is. the frontend agent on another laptop is writing a new one right now, with the old path.

[Alim @alimwtf]

your agent read the file at 10:02.
your teammate's agent changed its copy at 10:04.
your agent writes at 10:06.

nothing fails on either laptop. the two edits meet at merge.

[Alim @alimwtf]

has an agent on your team ever quietly undone a teammate's change?

not a merge conflict. a clean edit that put the old thing back, and nobody noticed for a day.

[Alim @alimwtf]

we gave every developer an agent and kept the coordination plan from before agents: find out at merge.

[Alim @alimwtf]

alice's agent deletes a helper and updates every caller it can find.

bob's agent, on another laptop, adds a new call to it.

both pass their tests. the build breaks after merge.

nobody told the agent.

[Alim @alimwtf]

https://t.co/P6CDzsOj3Z

[Alim @alimwtf]

your agent pulls main, sees a line it doesn't like, and changes it back.

that line was a teammate's fix from twenty minutes ago. the agent had no way to know.

with agentmash, it's told who changed that file, when, and what, before it edits.

[Alim @alimwtf]

we built agentmash for this. before an agent edits a file, it learns what the other agents changed. free for two developers: https://t.co/4mL9MKON4b

[Alim @alimwtf]

three developers. three agents. one repo.

what each agent knows about the other two: nothing.