Driving Codex

Drives the OpenAI Codex CLI (codex exec) as a headless worker from Claude Code — direct Bash calls, Agent-tool subagents, and Workflow scripts where every agent() is a sonnet wrapper whose Bash runs codex. PURPOSE cut, decide by binary: configuring the claude harness itself (hooks, settings.json, Workflow tool semantics, subagent policy) → operating-the-harness; the codex subprocess → here. Anthropic API/model facts → claude-api; prompt wording craft → prompting-llms. Use when embedding codex/GPT into a pipeline (sonnet draft → codex audit, heterogeneous cross-vendor verification), probing which GPT models an account can run when the model picker or cache disagrees, choosing --sandbox / --skip-git-repo-check / model_reasoning_effort flags, parsing --json usage or --output-last-message, codex spend / モデル使い分け・コスト比較 (ccusage), or unsticking a hanging or failing codex exec. Triggers: codex exec, Codex CLI, gpt-5.6, sol/terra/luna, ultra/max effort, codex に並列サブエージェント, models_cache, codex を workflow に組み込む, codex で監査, GPT にもレビューさせて, 異種モデル検証, モデルが一覧に出ない. LAW: the local model cache is a delivery snapshot, not the catalog — availability is a probe exit code, never memory or the picker; least-privilege sandbox always (danger-full-access only in isolated runners). Workflow-native: model/effort/sandbox/prompt choices and cross-model disagreement adjudication stay SOLO; parallel codex calls fan out one sonnet worker each. English skill; respond in the user's language (default Japanese).

mkdir -p ~/.claude/skills/driving-codex
curl -L https://claudskills.com/skills/driving-codex/SKILL.md \
  -o ~/.claude/skills/driving-codex/SKILL.md

@misc{driving-codex-2026,
  author    = {fuyutarow},
  title     = {Driving Codex [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/driving-codex/}
}