Module opencode 

OpenCode installer adapter.

What we touch

• ~/.opencode/config.json — mcpServers.spool entry
• ~/.opencode/hooks.json — hook entries for on_session_start, on_session_end pointing to our hook scripts
• ~/.opencode/hooks/spool-*.sh — two hook scripts

OpenCode hook format

OpenCode uses a flat hooks.json with the shape:

{
  "hooks": {
    "on_session_start": [{"command": "...", "timeout_ms": 5000}],
    "on_session_end":   [{"command": "...", "timeout_ms": 10000}]
  }
}

Same flat format as Codex but with only two hook events.

Binary resolution

Same strategy as Claude/Codex/Cursor: default to ~/.cargo/bin/spool-mcp, with --binary-path as an escape hatch.

Structs

OpenCodeInstaller