Home / dayfinggg / openai-codex-agent-skills · GitHub

debugging SKILL.md skillA

debugging from dayfinggg/openai-codex-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add dayfinggg/openai-codex-agent-skills/debugging@git:20261105.e0d5bb2

Pins git:20261105.e0d5bb2 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: dayfinggg/openai-codex-agent-skills
Path: codex/skills/debugging/SKILL.md
Versions recorded: 2
Latest version: git:20261105.e0d5bb2, committed Nov 5, 2026
First version recorded: Nov 5, 2026
Size: 7,097 bytes
Repository stars: 8
License: MIT

Diagnoses bugs, performance regressions, outages, failed CI jobs, slow SQL, PHP-FPM failures, and Symfony errors through reproduction, fault localization, and regression proof. Use before changing code when the user reports an error, a bug, a crash, a 500, a failing job, a timeout, something that stopped working, or a difference between local and production. Not routine feature work or schema design.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

1. Establish the expected and observed behavior, affected operation, environment, revision, runtime and dependency versions, inputs, and relevant time interval. Read applicable project instructions, the affected callers and contracts, and relevant glossary entries or architecture decisions. An investigation request does not authorize a fix or deployment. Keep live investigation read-only until a specific correction is supported and authorized.

2. Select only the relevant reference. Each contains a read when condition.

   - [Incidents](references/incidents.md), read when diagnosing an outage, elevated errors, or production latency.
   - [CI failures](references/ci-failures.md), read when a pipeline fails, flakes, or differs from local execution.
   - [Database queries](references/database-queries.md), read when SQL, locks, or connection exhaustion dominate the symptom.
   - [PHP-FPM and OPcache](references/php-fpm-opcache.md), read when FastCGI fails, workers saturate, or PHP serves stale code.
   - [Symfony](references/symfony.md), read when a request, profiler token, service binding, or environment loading points to Symfony.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add dayfinggg/openai-codex-agent-skills/debugging@sha256:a4767aada1e0c410

The line at the top of this page pins the label git:20261105.e0d5bb2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_dnantpuxw2hujfko.svg)](https://markdownregistry.com/a/art_dnantpuxw2hujfko)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Nov 5, 2026.

version	committed	commit	size	audit
git:20261105.e0d5bb2 latest	2026-11-05	e0d5bb2	7,097 B	A	view · diff
git:20261105.39988c5	2026-11-05	39988c5	6,999 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (7097 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

dayfinggg/openai-codex-agent-skills · 8 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dnantpuxw2hujfko
GET https://markdownregistry.com/api/v1/resolve?ref=dayfinggg/openai-codex-agent-skills/debugging
GET https://markdownregistry.com/api/v1/blob/a4767aada1e0c41024658510bffe6b17501130f26500ccbddaa697e859869856

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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