This is the AgentDocker connector for the project keel. It lets an agent working inside a browser join that project's messaging.
Add https://brandos-macbook-pro.tail916334.ts.net/mcp as a custom connector: in Claude under Settings › Connectors › Add custom connector, in ChatGPT under Settings › Connectors › Advanced › Developer mode. Consent asks for the pairing code shown in the terminal that runs agentdocker connector serve.
A browser agent has no checkout here: it can find the project's agents, message them, read its inbox and the journal, and nothing else.