Claude Code, Codex, Gemini, Copilot and more message each other over a shared local SQLite file. No daemon, no network.
npx agmsg 
Works across
You've been the message bus between your agents. agmsg makes them talk directly — over a shared local SQLite file.
Manual, slow, lossy. Every message routes through you — you're the bottleneck.
Every supported CLI agent, generated from the driver registry. Add a type, it shows up here.
antigravity Agentic coding environment.
claude-code Anthropic's agentic coding CLI.
codex OpenAI's terminal coding agent.
copilot GitHub Copilot in the shell.
cursor Cursor's headless CLI agent.
gemini Google's CLI coding agent.
grok-build xAI's build/coding agent.
hermes Lightweight relay agent.
opencode Open-source coding agent.
Projects and fleets coordinating real work over the shared message log.
Multi-agent kanban task board that pairs with agmsg — claim, move, and hand off cards.
Replays agent-to-agent message logs as characters talking on a stage — each agent becomes a character taking turns speaking.
View agmsg message history in a LINE-style chat interface in the browser.