intermux

Defined in hooks/hooks.json

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "async": true,
          "command": "${CLAUDE_PLUGIN_ROOT}/hooks/session-start.sh"
        }
      ],
      "matcher": "startup|resume|clear|compact"
    }
  ]
}

"On SessionStart, asynchronously runs Python script ./scripts/main.py hooks via uv in plugin root directory, setting PLUGIN_NAME=naming env var (300s timeout)."