Update to gstack Workflows

{
  "name": "land-and-deploy",
  "description": "Land an approved change, observe CI and deployment, and verify production health when host access permits.",
  "included_files": [
    {
      "relative_path": "agents/openai.yaml",
      "size_in_bytes": 302
    }
  ],
  "skill_md_contents": "---\nname: land-and-deploy\ndescription: Land an approved change, observe CI and deployment, and verify production health when host access permits.\n---\n\n# Land And Deploy\n\nPortable ChatGPT/Codex adaptation of the `land-and-deploy` workflow from `garrytan/gstack`. Preserve the original job and safety intent while mapping execution to capabilities the current host actually exposes.\n\n## When to use\n\nUse this Skill when the user explicitly names `land-and-deploy` or asks for the same job described above.\n\n## Host contract\n\n- Inspect repository or file evidence before making claims about the current state.\n- Use host-native read, list, search, grep, patch, write, shell, browser, computer, and Python capabilities only when they actually exist.\n- Never claim commands, tests, browser actions, device actions, file writes, Git operations, or external mutations that were not executed.\n- Prefer read-only discovery before mutation.\n- Respect repository instructions and preserve unrelated work.\n- When the original native gstack runtime is available in Codex, it may be used as an implementation detail after inspecting the installed upstream Skill. Do not hard-code Claude-only paths as a requirement.\n\n## Workflow\n\n1. Inspect branch state, diff, tests, review status, and release configuration.\n2. Block on unresolved high-severity defects or missing required checks.\n3. Treat push, PR creation, merge, deployment, and external mutations as explicit actions that require suitable authorization.\n4. Execute only the actions the host can actually perform.\n5. Verify the resulting commit/PR/deploy state and report exact evidence.\n\n## Completion\n\nReturn the decision, findings, changed artifacts if any, executed verification, skipped checks, and remaining blockers.\n"
}