crap-index-assess SKILL.md skillA
crap-index-assess from yarlson/yarstack is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add yarlson/yarstack/crap-index-assess@git:20261017.2f2e03bPins git:20261017.2f2e03b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- yarlson/yarstack
- Path
plugins/yarstack/skills/crap-index-assess/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261017.2f2e03b, committed Oct 17, 2026
- First version recorded
- Jul 24, 2026
- Size
- 5,088 bytes
- Repository stars
- 3
- License
- MIT
Assess method-level change risk with the Change Risk Anti-Patterns (CRAP) index and recommend focused testing or complexity reduction. Use when the user asks what CRAP means or how to calculate, interpret, or reduce a CRAP score, or when the repository's configured CRAP check covers changed methods; not as a general quality verdict or merge gate.
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
# CRAP Index Assessment Use the CRAP index as a method-level risk signal, not as a verdict on code quality or a target to game. ## Measure 1. Confirm the source revision and the methods in scope. 2. Read repository instructions, command entrypoints, scripts, manifests, analysis configuration, and CI needed to find an existing CRAP measurement and its documented prerequisites. 3. When the repository configures a CRAP command, run that command with its existing defaults and any documented project-native prerequisite that produces its coverage input. Preserve its complexity and coverage definitions, exclusions, precision, aggregation, and configured threshold. Do not replace it with an ad hoc command, install a tool, or change its configuration. 4. If the configured command fails, report the command and failure. Do not use partial or stale output. Use a manual fallback only when reliable method-level complexity and coverage from the same revision remain available, and label the result as a fallback rather than a successful tool run. 5. Use the manual calculation only when the repository has no configured CRAP measurement or the preceding fallback condition applies. …
Read the whole file at its exact version.
How to install
mdr add yarlson/yarstack/crap-index-assess@sha256:65bfb7a71e747de0The line at the top of this page pins the label git:20261017.2f2e03b, 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_q27l4akxh6lxvcqz)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 24, 2026 and Oct 17, 2026, about one every 85 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261017.2f2e03b latest | 2026-10-17 | 2f2e03b | 5,088 B | A | view · diff |
| git:20260724.a1b6f43 | 2026-07-24 | a1b6f43 | 5,092 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 (5088 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
yarlson/yarstack · 3 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_q27l4akxh6lxvcqz GET https://markdownregistry.com/api/v1/resolve?ref=yarlson/yarstack/crap-index-assess GET https://markdownregistry.com/api/v1/blob/65bfb7a71e747de08d5735bf01e4f60c94fa3db911367c75cc92809e5d898c27
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.