diff-skill skillA
diff-skill is agent-read markdown (skill) from serpro69/claude-toolbox: 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..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add serpro69/claude-toolbox/diff-skill@git:20260605.d0fb1bemdr add serpro69/claude-toolbox/diff-skill@sha256:cc43248b08b5a490Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_ce4apsux6n7rzpu7)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260605.d0fb1be latest | 2026-06-05 | d0fb1be | 2,403 B | A | view · diff |
| git:20260522.c7f1ed8 | 2026-05-22 | c7f1ed8 | 2,397 B | A | view · diff |
| git:20260522.9383cc7 | 2026-05-22 | 9383cc7 | 2,332 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 (2403 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 · 148 stars · license NOASSERTION · pushed 2026-09-06 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_ce4apsux6n7rzpu7 GET https://markdownregistry.com/api/v1/resolve?ref=serpro69/claude-toolbox/diff-skill GET https://markdownregistry.com/api/v1/blob/cc43248b08b5a49040ad2db20a3c331272ade41f897a7f27967b02a10b2a9563