Let AI agents message, watch, and spawn each other across terminals. Claude Code, Gemini CLI, Codex, OpenCode
Hook your coding agents together
Prefix agents with hcom to let them message, watch, and spawn each other across terminals.
https://github.com/user-attachments/assets/1ce23ed9-f529-4be0-8124-816aa4c2fd43
brew install aannoo/hcom/hcom
<details><summary>Other install options</summary>
# Shell installer for macOS, Linux, Android (Termux), and WSL
curl -fsSL https://github.com/aannoo/hcom/releases/latest/download/hcom-installer.sh | sh
# With PyPI
uv tool install hcom # or: pip install hcom
</details>
hcom gemini # gemini / codex / opencode
Prompt:
send a message to codexreview what gemini did and send fixesspawn 3x gemini, split work, collect resultsfork yourself to investigate the bug and report backOpen the TUI:
hcom
Message each other in real-time, bundle context for handoffs.
Observe each other: transcripts, file edits, terminal screens, command history.
Subscribe to each other: notify on status changes, file edits, specific events. React automatically.
Spawn, fork, resume, kill each other, in any terminal emulator.
Hooks record activity to a local SQLite database and deliver messages from it.
agent → hooks → db → hooks → other agent
For Claude Code, Gemini CLI, Codex, and OpenCode, messages arrive mid-turn (injected between tool calls) or wake idle agents immediately. Any other AI tool can join by running hcom start. Any proce
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