systematic-debugging SKILL.md skillA
systematic-debugging from flieber-inc/devcake is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add flieber-inc/devcake/systematic-debugging@git:20260720.fa58fb9Pins git:20260720.fa58fb9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- flieber-inc/devcake
- Path
app/devcake/skills/systematic-debugging/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260720.fa58fb9, committed Jul 20, 2026
- First version recorded
- Jul 17, 2026
- Size
- 4,138 bytes
- Repository stars
- 29
- License
- GPL-3.0
Four-phase root-cause debugging — investigate, pattern-match, hypothesize, then fix. Use when facing a bug, test failure, build break, unexpected behavior, or flaky path, before proposing or shipping a fix. Forbids symptom patches without a causal chain. Companion: verification-before-completion for proof after the fix; test-driven-development when encoding the fix as a test.
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
# Systematic debugging Random fixes waste time and create new bugs. Symptom patches hide the cause. **Iron law:** find root cause before changing production behavior. ## When this skill applies Use for any technical defect: failing tests, production anomalies, wrong outputs, performance regressions, integration breaks, build failures. Use especially when speed pressure tempts a one-line “just try this” patch. Do **not** use this skill to invent mission outcomes or hand-off rules — those live in the mission playbook. If you are blocked by missing credentials, permissions, or an external decision only a human can make, stop after a real attempt and report the exact error through the playbook’s hand-off path. ## Phase 1 — Investigate (no fix yet) 1. **Reproduce** with a concrete command, input, or path. Note environment (branch, config, dependency versions) from evidence, not guesswork. 2. **Collect symptoms**: exact error text, exit codes, logs, stack frames, timestamps, IDs. Prefer primary evidence over paraphrases. 3. **Locate first incorrect durable state** — separate UI, API response, database/file state, queue, cache, and logs. Name which layer is first wrong. …
Read the whole file at its exact version.
How to install
mdr add flieber-inc/devcake/systematic-debugging@sha256:71ea22180affba62The line at the top of this page pins the label git:20260720.fa58fb9, 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_s5lzfexr5aic6zuq)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 17, 2026 and Jul 20, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260720.fa58fb9 latest | 2026-07-20 | fa58fb9 | 4,138 B | A | view · diff |
| git:20260717.70feb23 | 2026-07-17 | 70feb23 | 10,763 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 (4138 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
flieber-inc/devcake · 29 stars · license GPL-3.0 · pushed 2026-10-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_s5lzfexr5aic6zuq GET https://markdownregistry.com/api/v1/resolve?ref=flieber-inc/devcake/systematic-debugging GET https://markdownregistry.com/api/v1/blob/71ea22180affba62a23acf1d03f01fa3b1db07358a095de0b022a8071b99ebfa
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.
More from flieber-inc/devcake
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