Bastion

{
  "agents": {
    "opencode": {
      "working_directory": "/workspace/app",
      "auth": {
        "openai": {
          "type": "api",
          "key": "${{ secret.OPENAI_API_KEY }}"
        }
      },
      "config": {
        "model": "openai/gpt-5.5",
        "permission": "allow"
      }
    }
  },
  "actions": {
    "init": [
      {
        "use": "setup_bun"
      },
      {
        "run": "git clone https://github.com/.../app.git",
        "working_directory": "/workspace"
      },
      {
        "run": "bun install",
        "working_directory": "/workspace/app"
      }
    ]
  }
}