debug SKILL.md skillA
debug from vanducng/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vanducng/skills/debug@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vanducng/skills
- Path
skills/debug/SKILL.md- Versions recorded
- 5
- Latest version
- v1.0.0, committed Sep 11, 2026
- First version recorded
- Jul 28, 2026
- Size
- 5,866 bytes
- Repository stars
- 8
- License
- MIT
Debug systematically across software, data pipelines, infrastructure, and analytics. Find root cause and produce verified evidence - for bugs, test failures, CI/CD breakage, K8s/Cloud incidents, dbt/Airflow pipeline failures, schema drift, freshness violations, dashboard wrong-numbers, and performance issues. Diagnoses and hands the fix to vd:fix; validates at every layer and verifies with fresh evidence before claiming a cause.
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
# Debug Comprehensive debugging across the four disciplines you work in: software, data engineering, devops, analytics. Systematic investigation, root-cause-first, defense-in-depth, and verified-before-claimed-done. ## Iron law ``` NO FIXES WITHOUT ROOT CAUSE INVESTIGATION FIRST ``` Random fixes waste time and create new bugs. Find root cause → trace the mechanism to its source → validate at every layer → verify with fresh evidence before claiming done, then hand the fix to `vd:fix`. **No red-capable command, no hypothesizing.** Before you name a cause, you must have a command (or browser step) that is currently red and that you can re-run. Until that exists, you are gathering a repro, not debugging. Do not stack theories to fill the gap. ## Proof gate Before calling a cause confirmed: 1. Observe or reproduce the symptom at the closest realistic boundary. 2. Compare the failing case with the nearest working control and find the first divergence. 3. Show the evidence chain from trigger to mechanism to symptom. …
Read the whole file at its exact version.
How to install
mdr add vanducng/skills/debug@sha256:188f52ea061903d1The line at the top of this page pins the label v1.0.0, 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_4wpbetf444moukl3)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 28, 2026 and Sep 11, 2026, about one every 11 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-09-11 | 9e58ef3 | 5,866 B | A | view · diff |
| v1.0.0 | 2026-08-23 | 87cd06b | 7,223 B | A | view · diff |
| v1.0.0 | 2026-08-19 | 204f73f | 6,962 B | A | view · diff |
| v1.0.0 | 2026-08-16 | c83d21b | 6,964 B | A | view · diff |
| v1.0.0 | 2026-07-28 | e1e390f | 6,852 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 (5866 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
vanducng/skills · 8 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4wpbetf444moukl3 GET https://markdownregistry.com/api/v1/resolve?ref=vanducng/skills/debug GET https://markdownregistry.com/api/v1/blob/188f52ea061903d19210f643e5f52e9ebee1cf8cbdd4f479a7c2bba1a2b6e721
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.