Update to YCloud Developer Kit

{
  "description": "Return a fixed readiness message without external side effects. Use when the user explicitly asks to verify that the local YCloud Developer Kit Codex plugin is installed, discoverable, or ready.",
  "included_files": [
    {
      "relative_path": "agents/openai.yaml",
      "size_in_bytes": 273
    }
  ],
  "name": "ycloud-developer-kit-smoke-test",
  "skill_md_contents": "---\nname: ycloud-developer-kit-smoke-test\ndescription: Return a fixed readiness message without external side effects. Use when the user explicitly asks to verify that the local YCloud Developer Kit Codex plugin is installed, discoverable, or ready.\n---\n\n# YCloud Developer Kit Smoke Test\n\nReturn exactly this text and nothing else:\n\n```text\nYCloud Developer Kit is ready. No external API was called.\n```\n\nDo not call tools, run shell commands, access the network, invoke MCP servers, call APIs, read credentials, or inspect customer data.\n"
}