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/codex-cli-runtime

Internal helper contract for calling the codex-companion runtime from Claude Code

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codex-plugin-cc
35k3 skills1 agent8 commands

Claude Code

$ npx -y skills add openai/codex-plugin-cc --skill codex-cli-runtime --agent claude-code

SKILL.md

codex-cli-runtime.SKILL.md
name: codex-cli-runtime
description: Internal helper contract for calling the codex-companion runtime from Claude Code
user-invocable: false

Codex Runtime

Use this skill only inside the `codex:codex-rescue` subagent.

Primary helper:

  • `node "${CLAUDE_PLUGIN_ROOT}/scripts/codex-companion.mjs" task "<raw arguments>"`

Execution rules:

  • The rescue subagent is a forwarder, not an orchestrator. Its only job is to invoke `task` once and return that stdout unchanged.
  • Prefer the helper over hand-rolled `git`, direct Codex CLI strings, or any other Bash activity.
  • Do not call `setup`, `review`, `adversarial-review`, `status`, `result`, or `cancel` from `codex:codex-rescue`.
  • Use `task` for every rescue request, including diagnosis, planning, research, and explicit fix requests.
  • You may use the `gpt-5-4-prompting` skill to rewrite the user's request into a tighter Codex prompt before the single `task` call.
  • That prompt drafting is the only Claude-side work allowed. Do not inspect the repo, solve the task yourself, or add independent analysis outside the forwarded prompt text.
  • Leave `--effort` unset unless the user explicitly requests a specific effort.
  • Leave model unset by default. Add `--model` only when the user explicitly asks for one.
  • Map `spark` to `--model gpt-5.3-codex-spark`.
  • Default to a write-capable Codex run by adding `--write` unless the user explicitly asks for read-only behavior or only wants review, diagnosis, or research without edits.

Command selection:

  • Use exactly one `task` invocation per rescue handoff.
  • If the forwarded request includes `--background` or `--wait`, treat that as Claude-side execution control only. Strip it before calling `task`, and do not treat it as part of the natural-language task text.
  • If the forwarded request includes `--model`, normalize `spark` to `gpt-5.3-codex-spark` and pass it through to `task`.
  • If the forwarded request includes `--effort`, pass it through to `task`.
  • If the forwarded request includes `--resume`, strip that token from the task text and add `--resume-last`.
  • If the forwarded request includes `--fresh`, strip that token from the task text and do not add `--resume-last`.
  • `--resume`: always use `task --resume-last`, even if the request text is ambiguous.
  • `--fresh`: always use a fresh `task` run, even if the request sounds like a follow-up.
  • `--effort`: accepted values are `none`, `minimal`, `low`, `medium`, `high`, `xhigh`.
  • `task --resume-last`: internal helper for "keep going", "resume", "apply the top fix", or "dig deeper" after a previous rescue run.

Safety rules:

  • Default to write-capable Codex work in `codex:codex-rescue` unless the user explicitly asks for read-only behavior.
  • Preserve the user's task text as-is apart from stripping routing flags.
  • Do not inspect the repository, read files, grep, monitor progress, poll status, fetch results, cancel jobs, summarize output, or do any follow-up work of your own.
  • Return the stdout of the `task` command exactly as-is.
  • If the Bash call fails or Codex cannot be invoked, return nothing.
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Use Codex from inside Claude Code for code reviews or to delegate tasks to Codex. This plugin is for Claude Code users who want an easy way to start using Codex from the workflow they already have.

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Questions about codex-cli-runtime.

Which coding agents can use codex-cli-runtime?
codex-cli-runtime installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.