skill-optimizer skillA
skill-optimizer is agent-read markdown (skill) from s977043/river-review: Evaluate and improve an existing Claude Code skill using explicit success criteria and small controlled changes. Use when the user asks to optimize a skill, reduce over-triggering or under-triggering, improve reliability, tighten instructions, or add evals for a skill. Also trigger on "スキルを改善して", "スキルを最適化して", "スキルの品質を確認して"..
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 s977043/river-review/skill-optimizer@git:20260321.857d5camdr add s977043/river-review/skill-optimizer@sha256:99a4535dc6c4892dPin 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_dst2r5n67ozqlkmo)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260321.857d5ca latest | 2026-03-21 | 857d5ca | 4,547 B | A | view · diff |
| git:20260321.9fa274a | 2026-03-21 | 9fa274a | 4,429 B | A | view · diff |
| git:20260321.8fae238 | 2026-03-21 | 8fae238 | 3,530 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 (4547 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
s977043/river-review · 3 stars · license MIT · pushed 2026-09-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dst2r5n67ozqlkmo GET https://markdownregistry.com/api/v1/resolve?ref=s977043/river-review/skill-optimizer GET https://markdownregistry.com/api/v1/blob/99a4535dc6c4892d8f5d50edfdf8f479c7dd683535a32a90dab9070004f79aea
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.