mcp-codex-worker: Skill for Claude Code

.claude/skills/worker-debugging-playbook/SKILL.md

worker-debugging-playbook is a skill for Claude Code from sorryorc/mcp-codex-worker. It costs 36 tokens per session (347 once invoked), scanned A, original, MIT.

A troubleshooting guide for background jobs that fail, hang, lose their identifier, produce excessive output, or appear successful while being wrong.

In plain words
What is it for?
Use it to inspect job receipts, saved outputs, trajectory scores, missing checks, and the smallest failing command before rerunning or escalating the work.
Why use it?
It provides checks for common causes such as expired job identifiers, missing saved files, edits outside the allowed area, and results that pass automated checks but fail human review.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Codex.

This is sorryorc/mcp-codex-worker's own configuration. It tells Claude Code how to work on mcp-codex-worker itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-codex-worker configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sorryorc/mcp-codex-worker. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sorryorc/mcp-codex-worker/main/.claude/skills/worker-debugging-playbook/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/sorryorc/mcp-codex-worker

Made for: Claude Code.

Wrote 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.

agentmods badge for worker-debugging-playbook

README.md
[![agentmods](https://agentmods.dev/badge/skills/sorryorc/mcp-codex-worker/worker-debugging-playbook/github.svg)](https://agentmods.dev/skills/sorryorc/mcp-codex-worker/worker-debugging-playbook)
Your own site
<a href="https://agentmods.dev/skills/sorryorc/mcp-codex-worker/worker-debugging-playbook"><img src="https://agentmods.dev/badge/skills/sorryorc/mcp-codex-worker/worker-debugging-playbook/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.

agentmods 80×15 button for worker-debugging-playbook

Your own site · 80×15
<a href="https://agentmods.dev/skills/sorryorc/mcp-codex-worker/worker-debugging-playbook"><img src="https://agentmods.dev/badge/skills/sorryorc/mcp-codex-worker/worker-debugging-playbook.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 347 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.00347
Opus 5.5 $0.00014 $0.00139
Sonnet 5.5 $0.00007 $0.00069
Haiku 4.5 $0.00004 $0.00035

Measured 2mo ago against content hash 7dc8bd32f001, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

worker-debugging-playbook 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 2mo 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.

.claude/skills/worker-debugging-playbook/SKILL.md · 37 lines

What it actually says

Worker Debugging Playbook

Symptom Table

Symptom First check Likely cause Next action
Job not found Job TTL and id source Expired or wrong id Re-run start, capture id in the caller
Receipt says missing_artifact Receipt bytes and refs Large output without artifact Fix tool to save artifact before returning
scoped_patch violation Changed files vs paths Worker edited outside scope Narrow prompt and rerun with scoped paths
Checks passed but output feels wrong Episode and semantic risk Semantic failure Use strict or critical tier review
Repeated revise passes Reasoning blockers Stalled repair loop Escalate model or stop for main review

Minimal Triage

  1. Read compact get output first.
  2. If receipt has artifact refs, inspect slices instead of full logs.
  3. Check episode.trajectory_score and missing gates.
  4. Run the smallest failing check outside the worker if needed.

When Not To Use

Do not use this for planned feature work. Use worker-change-control first.

Verification

  • npm run codex:audit -- --since-minutes=60
  • npm run stats:gate

Provenance and maintenance

Refresh symptoms with rg -n "Job not found|missing_artifact|scoped_patch|revise" src scripts.

Changes

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.

  1. 2mo ago First seen · 37 lines · 36 tokens per session scan A 7dc8bd32f001

Subscribe to this mod's changes

worker-debugging-playbook is a skill published in the GitHub repository sorryorc/mcp-codex-worker (2 stars, last pushed 1mo ago), licensed MIT. It adds 36 tokens to every session and 347 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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