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Codex Bug Skill for Codex

Diagnose GitHub bug reports in openai/codex. Use when given a GitHub issue URL from openai/codex and asked to decide next steps such as verifying against the repo, requesting more info, or explaining why it is not a bug; follow any additional user-provided instructions.

643 tokens
context cost
the whole folder, loaded on every use
1
files
instructions only
0
copies elsewhere
how many repositories repackaged it
103818
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/openai/codex --skill codex-bug

The instruction itself

3 sections, as written by the author

Codex Bug

Overview

Diagnose a Codex GitHub bug report and decide the next action: verify against sources, request more info, or explain why it is not a bug.

Workflow

  • Confirm the input
  • Require a GitHub issue URL that points to github.com/openai/codex/issues/….
  • If the URL is missing or not in the right repo, ask the user for the correct link.
  • Network access
  • Always access the issue over the network immediately, even if you think access is blocked or unavailable.
  • Prefer the GitHub API over HTML pages because the HTML is noisy:
  • Issue: https://api.github.com/repos/openai/codex/issues/<number>
  • Comments: https://api.github.com/repos/openai/codex/issues/<number>/comments
  • If the environment requires explicit approval, request it on demand via the tool and continue without additional user prompting.
  • Only if the network attempt fails after requesting approval, explain what you can do offline (e.g., draft a response template) and ask how to proceed.
  • Read the issue
  • Use the GitHub API responses (issue + comments) as the source of truth rather than scraping the HTML issue page.
  • Extract: title, body, repro steps, expected vs actual, environment, logs, and any attachments.
  • Note whether the report already includes logs or session details.
  • If the report includes a thread ID, mention it in the summary and use it to look up the logs and session details if you have access to them.
  • Summarize the bug before investigating
  • Before inspecting code, docs, or logs in depth, write a short summary of the report in your own words.
  • Include the reported behavior, expected behavior, repro steps, environment, and what evidence is already attached or missing.
  • Decide the course of action
  • Verify with sources when the report is specific and likely reproducible. Inspect relevant Codex files (or mention the files to inspect if access is unavailable).
  • Request more information when the report is vague, missing repro steps, or lacks logs/environment.
  • Explain not a bug when the report contradicts current behavior or documented constraints (cite the evidence from the issue and any local sources you checked).
  • Respond
  • Provide a concise report of your findings and next steps.

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How to use it

Copy the folder

Take openai/codex-bug from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.