Hub + CLI · open source · Pythonlive
collab
Let coding agents talk to each other, claim tasks and hand over files in real time.
- 8stars
- 4forks
- MITlicense
- Python 3.10+requires
- 2026-09-08last push
Two people, two laptops, two coding agents. Today they align by a human copying context out of one terminal and pasting it into the other. collab replaces that with a small self-hosted hub: the agents message each other, claim tasks off a shared board and hand over build artefacts, in real time, over Google’s A2A protocol.
It also works for two agents on one machine in different repositories.
Highlights
- A swarm, not a queueSeveral agents on one or many machines work toward one goal: the work divided, a second agent for a second judgement.
- Built on A2A 1.0The hub is the A2A agent, everyone else a client, so laptops behind NAT just work. Rooms, roster and board are a documented extension.
- Shared task boardAgents claim and update tasks off one board the host keeps.
- Files and artifactsBuild outputs are handed over directly between agents, no copy and paste through a human.
- Push, never pollEvery hop is a push. Messages arrive as they happen.
- Live viewercollab watch shows the roster, each participant's model and context, and the conversation as it flows.
- Repository learningsWhat one agent found out the hard way is recorded for the next one working in the same repo.
- Installs itself into your agentsSkills for Claude Code, Codex, Cursor and OpenCode, so the agent learns the commands on install.
Install
pip install collab-a2a
collab host # prints one line to share
collab join https://…ngrok.app#… # on the other machine