diagnosing-bugs SKILL.md skillA
diagnosing-bugs from svyatov/supermatt is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add svyatov/supermatt/diagnosing-bugs@git:20261018.f19c25aPins git:20261018.f19c25a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- svyatov/supermatt
- Path
skills/diagnosing-bugs/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261018.f19c25a, committed Oct 18, 2026
- First version recorded
- Sep 30, 2026
- Size
- 16,738 bytes
- Repository stars
- 14
- License
- MIT
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.
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 A discipline for hard bugs. Skip phases only when explicitly justified. When exploring the codebase, read the glossary (`docs/agents/domain.md` gives the layout; by default `GLOSSARY.md` at the root, if it exists) to get a clear mental model of the relevant modules, and check ADRs in the area you're touching. **Start from prior attempts.** If the user says they have been trying, ask what they tried before you start, so you skip their dead ends. If they link an issue, read the whole thread, latest comments first: they often carry newer repro steps or a different suspect. Run `git log --oneline -10 -- <file>` on the files you read to see what changed recently. ## Redact This skill has you show commands, outputs and captured artifacts. **Redact every secret first**: write `<REDACTED>` in its place. Build loops against env vars, so the credential stays in the environment rather than in what you show. Captured artifacts carry auth headers: quote only the lines that carry the signal. If the redacted output is not enough to diagnose the bug, say so and ask the user. ## Phase 1: Build a feedback loop …
Read the whole file at its exact version.
How to install
mdr add svyatov/supermatt/diagnosing-bugs@sha256:3b74949fb5cc6285The line at the top of this page pins the label git:20261018.f19c25a, 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_tccaioiuzfialbwe)
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Versions
The registry has recorded 5 versions of this file, between Sep 30, 2026 and Oct 18, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261018.f19c25a latest | 2026-10-18 | f19c25a | 16,738 B | A | view · diff |
| git:20261017.6e83db0 | 2026-10-17 | 6e83db0 | 15,423 B | A | view · diff |
| git:20261008.ef2679f | 2026-10-08 | ef2679f | 15,045 B | A | view · diff |
| git:20260930.1e3bbbe | 2026-09-30 | 1e3bbbe | 15,018 B | A | view · diff |
| git:20260930.ca70280 | 2026-09-30 | ca70280 | 15,008 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 (16738 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
svyatov/supermatt · 14 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tccaioiuzfialbwe GET https://markdownregistry.com/api/v1/resolve?ref=svyatov/supermatt/diagnosing-bugs GET https://markdownregistry.com/api/v1/blob/3b74949fb5cc6285629f63b2a90dda5f220257c2f1ab56af99741153b6734ef0
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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