diagnosing-bugs SKILL.md skillA
diagnosing-bugs from bendrucker/claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bendrucker/claude/diagnosing-bugs@git:20261030.03f7155Pins git:20261030.03f7155 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bendrucker/claude
- Path
user/skills/diagnosing-bugs/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261030.03f7155, committed Oct 30, 2026
- First version recorded
- Aug 25, 2026
- Size
- 1,477 bytes
- Repository stars
- 18
- License
- MIT
Find the cause of a reported failure by first building a command that reproduces it. Use when the user reports something broken, failing, throwing, hanging, or slower than it was, or points at a red CI, pipeline, or lint job.
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
# Diagnosing Bugs Diagnose the failure in `$ARGUMENTS`, or the one the user just reported. ## Reproduce Build one command that fails on this bug: it drives the real code path and produces the reported symptom. Read and grep as needed to find how to invoke that path. For a failing CI or pipeline job, that command already ran. Get its logs with `github:actions-monitor` or `gitlab:ci-monitor`. When nothing you try reaches the bug, stop. Name what you tried and what each attempt could not reach, then ask for an environment where it reproduces, a captured artifact, or permission to add instrumentation. ## Find the Cause Change one thing per run. A cause is established when changing it turns the command green. Report one cause. When none is established, say what you ruled out and how, then ask. ## Hand Off With the cause established and the fix clear, enter plan mode and map out the implementation. When the user asked for diagnosis without changes, stop at the cause and the plan. ## Confirm Once a fix is in, re-run the original reproduction, not a smaller case built along the way. Report it fixed only after that command passes, and quote the run.
Read the whole file at its exact version.
How to install
mdr add bendrucker/claude/diagnosing-bugs@sha256:1bac279ed416fbdeThe line at the top of this page pins the label git:20261030.03f7155, 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.
[](https://markdownregistry.com/a/art_fnqbmxsb253wvdw2)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Aug 25, 2026 and Oct 30, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.03f7155 latest | 2026-10-30 | 03f7155 | 1,477 B | A | view · diff |
| git:20260902.42e53f9 | 2026-09-02 | 42e53f9 | 1,970 B | A | view · diff |
| git:20260826.c3e7584 | 2026-08-26 | c3e7584 | 2,004 B | A | view · diff |
| git:20260825.cd0e496 | 2026-08-25 | cd0e496 | 4,499 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1477 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
bendrucker/claude · 18 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fnqbmxsb253wvdw2 GET https://markdownregistry.com/api/v1/resolve?ref=bendrucker/claude/diagnosing-bugs GET https://markdownregistry.com/api/v1/blob/1bac279ed416fbdecacee24f3579db843543a2cf40f78e89ac11012b7f9b089d
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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