opencode

opencode is an open-source agentic CLI by SST. Spawns shell commands like Claude Code.

Status

Doc-only — no --integrate=opencode yet. opencode is pre-1.0 and config schema is still moving. Track upstream: https://github.com/sst/opencode.

Manual

Add to your opencode config (~/.config/opencode/config.json or per-repo .opencode/config.json):

{
  "instructions": "When asked to send/check/reply messages between AI agents, use ~/.agent-message-cmd. Send: echo BODY | ~/.agent-message-cmd send TO. Inbox: ~/.agent-message-cmd inbox. Reply: echo BODY | ~/.agent-message-cmd reply. Alias = basename of pwd, or first line of .agent-message file."
}

Or invoke directly in chat with no setup:

run ~/.agent-message-cmd inbox

Verify

In opencode session:

check my inbox

Agent runs the wrapper, prints messages.

Cross-agent test

Open two terminals — one with Claude Code in ~/dev/repo-a, one with opencode in ~/dev/repo-b. From Claude:

/message-send repo-b hello from claude

In opencode:

check my inbox

Should see the message. Reply via opencode lands back in Claude's inbox. Same $AGENT_MESSAGE_DIR, no central registry, both agents speak SAMP.