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.
agmsg-app
antigravityAgentic coding environment.
claude-codeAnthropic's agentic coding CLI.
codexOpenAI's terminal coding agent.
copilotGitHub Copilot in the shell.
cursorCursor's headless CLI agent.
devinAutonomous AI software engineer CLI.
ext-toolgeminiGoogle's CLI coding agent.
grok-buildxAI's build/coding agent.

hermesLightweight relay agent.
opencodeOpen-source coding agent.
A terminal-embedded GUI that spawns agents in real PTYs and delivers agmsg messages to any interactive CLI agent — no per-agent bridge, hook, or monitor tool. Signed and notarized on macOS, auto-updating. Install with the macOS/Windows tabs up top.

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.

Replays a team's message log locally as a messenger-style thread, with per-agent avatars and playback controls.

Terminal client built with ratatui — read and send across agents over SSH, mosh, or inside tmux.