Borrowing it
Nothing to install: this file belongs to extracurricular-ai/codex-rewind. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/extracurricular-ai/codex-rewind/main/.codex/skills/codex-pr-body/SKILL.mdgit clone --depth 1 https://github.com/extracurricular-ai/codex-rewindWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/extracurricular-ai/codex-rewind/codex-pr-body)<a href="https://agentmods.dev/skills/extracurricular-ai/codex-rewind/codex-pr-body"><img src="https://agentmods.dev/badge/skills/extracurricular-ai/codex-rewind/codex-pr-body/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/extracurricular-ai/codex-rewind/codex-pr-body"><img src="https://agentmods.dev/badge/skills/extracurricular-ai/codex-rewind/codex-pr-body.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00017 | $0.00985 |
| Opus 5 | $0.00009 | $0.00492 |
| Sonnet 5 | $0.00003 | $0.00197 |
| Haiku 4.5 | $0.00002 | $0.00098 |
Grade A, and why
codex-pr-body scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to codex-pr-body — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Determining the PR(s)
When this skill is invoked, the PR(s) to update may be specified explicitly, but in the common case, the PR(s) to update will be inferred from the branch / commit that the user is currently working on. For ordinary Git usage (i.e., not Sapling as discussed below), you may have to use a combination of git branch and gh pr view <branch> --repo openai/codex --json number --jq '.number' to determine the PR associated with the current branch / commit.
PR Body Contents
When invoked, use gh to edit the pull request body and title to reflect the contents of the specified PR. Make sure to check the existing pull request body to see if there is key information that should be preserved. For example, NEVER remove an image in the existing pull request body, as the author may have no way to recover it if you remove it.
It is critically important to explain why the change is being made. If the current conversation in which this skill is invoked has discussed the motivation, be sure to capture this in the pull request body.
The body should also explain what changed, but this should appear after the why.
Limit discussion to the net change of the commit. It is generally frowned upon to discuss changes that were attempted but later undone in the course of the development of the pull request. When rewriting the pull request body, you may need to eliminate details such as these when they are no longer appropriate / of interest to future readers.
Avoid references to absolute paths on my local disk. When talking about a path that is within the repository, simply use the repo-relative path.
Avoid references to confidential information including but not limited to codenames or OpenAI-internal URLs.
It is generally helpful to discuss how the change was verified. That said, it is unnecessary to mention things that CI checks automatically, e.g., do not include "ran just fmt" as part of the test plan. Though identifying the new tests that were purposely introduced to verify the new behavior introduced by the pull request is often appropriate.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 62 lines · 17 tokens per session scan A 716cacb29179
codex-pr-body is a skill published in the GitHub repository extracurricular-ai/codex-rewind (49 stars, last pushed 2d ago), licensed Apache-2.0. It adds 17 tokens to every session and 985 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to codex-pr-body, differing in 0 lines, and is treated as a copy.
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