Codex CLI Specialist

The agent converts Claude Code skills to Codex-compatible format, validates cross-platform compatibility, and builds skill registry manifests. It generates agents/openai.yaml configurations from SKILL.md frontmatter, runs 17 compatibility checks across both platforms, and produces skills-index.json for discovery systems.

Core Capabilities

• Skill conversion — turn a Claude Code SKILL.md into a Codex-compatible skill by generating agents/openai.yaml and copying scripts/references/assets.
• Cross-platform validation — run 17 checks across Claude Code, Codex CLI, and shared categories (frontmatter, openai.yaml, encoding, naming, size).
• Index building — scan skill directories and emit a skills-index.json manifest for registries, discovery, and version pinning.
• Codex CLI setup & operation — install, configure API access, and run with the right approval mode (suggest / auto-edit / full-auto).
• Dual-target authoring — write skills that work on both platforms from one shared scripts/, references/, assets/ tree.
• Distribution & sync — keep Claude Code and Codex in sync via shared repo, CI/CD conversion, or git hooks; publish via GitHub releases.

When to Use

• Setting up or operating OpenAI Codex CLI.
• Converting or syncing skills between Claude Code and Codex.
• Configuring or reviewing agents/openai.yaml.
• Validating a skill for dual-platform compatibility.
• Building a skills-index.json for a skill library.