debug SKILL.md skillA
debug from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericrisco/rsc-harness/debug@git:20261003.f0c84d6Pins git:20261003.f0c84d6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericrisco/rsc-harness
- Path
skills/debug/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261003.f0c84d6, committed Oct 3, 2026
- First version recorded
- Jun 2, 2026
- Size
- 12,582 bytes
- Repository stars
- 236
- License
- MIT
Use when something is broken — a failing or flaky test, crash, wrong result or regression — and the root cause must be reproduced and proven before any fix. On-demand; callable mid-`implement`. NOT a feature to spec or build (that is `specify`/`implement`), NOT the lint/test gate (that is `verify`), NOT adversarial diff reading (that is `review`).
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 — find the cause before you touch the fix `debug` is the on-demand diagnosis discipline of the rsc-sdd chain. Something is broken — a test went red, a crash landed, a result is wrong, a regression appeared — and the strongest pull in the room is to change code until the symptom disappears. That pull is the enemy. A symptom that vanishes under a guessed edit usually moved; it rarely died. This skill replaces guess-and-patch with a short, evidence-driven loop that ends only when **one confirmed cause** has been named, fixed, and proven gone. The one rule everything else serves: **no fix before a reproduced, isolated, confirmed cause.** If you cannot make the bug happen on demand, you cannot know you fixed it — you can only know the symptom stopped showing, which is not the same thing. This is a process skill: it owns the *method*, never the instruments. The test runner, debugger, race detector and profiler belong to whichever stack the failure lives in — pull them from the delegation table below. ## Model tier — `heavy` (opt-in routing) …
Read the whole file at its exact version.
How to install
mdr add ericrisco/rsc-harness/debug@sha256:15f5a22cd0e5888bThe line at the top of this page pins the label git:20261003.f0c84d6, 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_3cwku76ygjcnhkhk)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 2, 2026 and Oct 3, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.f0c84d6 latest | 2026-10-03 | f0c84d6 | 12,582 B | A | view · diff |
| git:20260729.3ecb845 | 2026-07-29 | 3ecb845 | 13,086 B | A | view · diff |
| git:20260627.b4c16c7 | 2026-06-27 | b4c16c7 | 15,774 B | A | view · diff |
| git:20260607.9863e04 | 2026-06-07 | 9863e04 | 15,819 B | A | view · diff |
| git:20260602.d5545f4 | 2026-06-02 | d5545f4 | 15,138 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 (12582 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
ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3cwku76ygjcnhkhk GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/debug GET https://markdownregistry.com/api/v1/blob/15f5a22cd0e5888b0b1cc6a0d26345b2eb625f36d21bf3ab92cb543cc1205eba
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 ericrisco/rsc-harness
Every file in ericrisco/rsc-harness