Update to castform

{
  "description": "One-time bootstrap for a new Castform project — install the Castform CLI and scaffold the Codex guide, skills, and starter environment. Run this before any other Castform skill.",
  "included_files": [],
  "name": "setup",
  "skill_md_contents": "---\nname: setup\ndescription: One-time bootstrap for a new Castform project — install the Castform CLI and scaffold the Codex guide, skills, and starter environment. Run this before any other Castform skill.\n---\n\n# Set up Castform\n\nThe other Castform skills (`design-environment`, `generate-data`,\n`verify-environment`, `launch-run`, `view-progress`, and `train-sft`) assume\nthe CLI is installed and the current project has been scaffolded.\n\n1. Install or upgrade the CLI:\n\n   ```bash\n   uv tool install -U castform\n   ```\n\n2. Scaffold the current project for Codex:\n\n   ```bash\n   castform setup --agent codex\n   ```\n\n   This signs in through the browser when necessary, then writes `AGENTS.md`,\n   `GETTING_STARTED.md`, the per-stage skills, and a runnable starter\n   environment. It is safe to rerun because existing files are skipped unless\n   `--force` is passed.\n\n3. Confirm `castform --version` succeeds and the project contains `AGENTS.md`\n   plus `.agents/skills/`.\n\nContinue with the `design-environment` skill.\n"
}