diff-skill SKILL.md skillA
diff-skill from serpro69/claude-toolbox is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add serpro69/claude-toolbox/diff-skill@git:20260605.a4fab48Pins git:20260605.a4fab48 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- serpro69/claude-toolbox
- Path
kodex-plugin/skills/diff-skill/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260605.a4fab48, committed Jun 5, 2026
- First version recorded
- May 22, 2026
- Size
- 2,482 bytes
- Repository stars
- 155
- License
- a license file GitHub does not identify
Compare two versions of a skill's instructions to detect degradations and complexity increases. TRIGGER when: user asks to diff, compare, or review changes to a skill's markdown instructions. Asymmetric check — only regressions count. Additions, clarifications, and strengthenings are not degradations. Compares HEAD → working tree by default. Walks the full reachable file set from SKILL.md via markdown links. Produces a report file under docs/reviews/diff-skill/ and an inline summary.
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
<!-- codex: tool-name mapping applied. See .codex/scripts/session-start.sh --> # Diff Skill Instructions **Goal: Detect whether an edit to a skill's markdown instructions introduced degradations or made the skill harder for an LLM to follow.** Two judgment axes: 1. **Degradation (asymmetric)** — load-bearing instruction dropped, constraint weakened, verification step removed, scope narrowed, required output dropped, or reference broken. Content relocated but preserved is neutral. 2. **Complexity** — split into _regressions_ (introduced or worsened by the edit, affects verdict) and _pre-existing advisories_ (exist regardless of the edit, surfaced as improvement opportunities, does NOT affect verdict). ## Conventions - **Read capy knowledge base conventions** at [shared-capy-knowledge-protocol.md](shared-capy-knowledge-protocol.md). ## Required Outputs - [ ] Report written to `docs/reviews/diff-skill/<slug>-<sha-a>-<sha-b>.md` - [ ] Inline summary presented (under 10 lines: verdict, finding counts, report path) - [ ] Capy indexed under `kk:review-findings` if any degradation or complexity regression findings exist (skip on clean results and pre-existing advisories) …
Read the whole file at its exact version.
How to install
mdr add serpro69/claude-toolbox/diff-skill@sha256:f9bf8259d11f42d3The line at the top of this page pins the label git:20260605.a4fab48, 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_7jb4xy3vxtykkvjb)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 22, 2026 and Jun 5, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260605.a4fab48 latest | 2026-06-05 | a4fab48 | 2,482 B | A | view · diff |
| git:20260522.96c15f4 | 2026-05-22 | 96c15f4 | 2,411 B | A | view · diff |
| git:20260522.c7f1ed8 | 2026-05-22 | c7f1ed8 | 2,476 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 (2482 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
serpro69/claude-toolbox · 155 stars · license a license file GitHub does not identify · pushed 2026-11-04 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_7jb4xy3vxtykkvjb GET https://markdownregistry.com/api/v1/resolve?ref=serpro69/claude-toolbox/diff-skill GET https://markdownregistry.com/api/v1/blob/f9bf8259d11f42d365772e1ea02a35a01e0e9d49b8f7908ab3a1fd2b7efbcdab
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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