skill-optimizer SKILL.md skillA
skill-optimizer from s977043/river-review is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add s977043/river-review/skill-optimizer@git:20261004.95d1f7aPins git:20261004.95d1f7a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- s977043/river-review
- Path
.claude/skills/skill-optimizer/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261004.95d1f7a, committed Oct 4, 2026
- First version recorded
- Mar 21, 2026
- Size
- 5,346 bytes
- Repository stars
- 7
- License
- MIT
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".
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
## Pattern declaration Primary pattern: Reviewer Secondary patterns: Pipeline Why: optimization starts with diagnosis against criteria, then applies small changes in a controlled sequence with eval checkpoints. ## Purpose Improve an existing skill without breaking what already works. Your job is to: 1. inspect the current skill package 2. define or refine success criteria 3. identify failure modes 4. propose one small change at a time 5. attach each change to an eval hypothesis 6. reject changes that cannot be evaluated ## Core optimization rule Never apply a large rewrite first. Optimize in small units: - description - gate logic - workflow order - examples - prohibited behaviors - output contract - review checklist - supporting file structure Change only one major unit per proposal. ## Phase 0: Baseline audit Inspect: - current `SKILL.md` - current `SKILL.md` entrypoint size (UTF-8 bytes / lines) and whether optional knowledge is eagerly loaded - current supporting files - invocation settings - current examples - current failure reports or user complaints - existing eval cases if any Then summarize: - what the skill is supposed to do - where it fails …
Read the whole file at its exact version.
How to install
mdr add s977043/river-review/skill-optimizer@sha256:9d389a2762ed6584The line at the top of this page pins the label git:20261004.95d1f7a, 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_dst2r5n67ozqlkmo)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 21, 2026 and Oct 4, 2026, about one every 66 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261004.95d1f7a latest | 2026-10-04 | 95d1f7a | 5,346 B | A | view · diff |
| git:20260321.857d5ca | 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 (5346 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 · 7 stars · license MIT · pushed 2026-11-03 · 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/9d389a2762ed65845e6c3944887e2ef1d3278760815ffb1e7c1f69b82ad47320
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 s977043/river-review
Every file in s977043/river-review