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Commands Frontmatter Adapter

commands-frontmatter-adapter

Parse Claude command frontmatter and expose body/meta for Codex CLI.

SKILL.md

Full skill instructions

Commands Frontmatter Adapter

Extract frontmatter and body from Claude-style command files so Codex CLI can consume the body as a prompt while still exposing metadata as JSON.

Usage

  • By command name (from the scripts directory): ./​adapter.py --command diary --pretty
  • By explicit file (from anywhere): /​abs/​path/​to/​adapter.py --file /​abs/​path/​to/​src/​.claude/​commands/​diary.md

Note: The script resolves src/​.claude/​commands relative to the skill location, so symlinked global installs work without depending on the current working directory. Use --file if your commands live elsewhere.

Options

  • --body-only Output body only (paste into prompt)
  • --frontmatter-only Output parsed frontmatter as JSON
  • --raw-frontmatter Output raw frontmatter block
  • --pretty Pretty-print JSON

Behavior

  1. Treat the first --- ... --- block as frontmatter.
  2. Try yaml.safe_load; if PyYAML is missing or fails, fall back to a minimal parser (key/​value and bullet lists).
  3. JSON output structure:
    • file: target file path
    • frontmatter: parsed metadata (dict or null)
    • frontmatter_raw: raw text
    • body: body text

Known frontmatter keys (current commands)

  • description: short summary shown in command picker.
  • argument-hint: usage hint for $ARGUMENTS.
  • allowed-tools: tool whitelist string (pass-through; no validation here).

The adapter performs parsing only; interpretation or enforcement of these keys is left to the caller (e.g., Codex CLI prompt wrappers).

Tips

  • Prefer --body-only when piping into Codex CLI prompts.
  • Manually respect metadata such as allowed-tools as needed in your session.
  • If a file has no frontmatter, only the body is returned.

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