expert-skill-creator SKILL.md skillA
expert-skill-creator from pyroxin/opinionated-claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pyroxin/opinionated-claude-skills/expert-skill-creator@git:20261013.271bbadPins git:20261013.271bbad in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pyroxin/opinionated-claude-skills
- Path
opinionated-skill-creation/skills/expert-skill-creator/SKILL.md- Versions recorded
- 12
- Latest version
- git:20261013.271bbad, committed Oct 13, 2026
- First version recorded
- Jun 30, 2026
- Size
- 66,794 bytes
- Repository stars
- 9
- License
- EPL-2.0
Expert-level guidance for creating high-quality Claude Code skills, complementing Anthropic's skill-creator, which covers basic skill mechanics. Covers research-driven content development, XML tag structuring, decision frameworks over mechanics, model targeting, cross-references between skills, citations, and systematic validation. Invoke when creating a new skill, improving, refactoring, or upgrading an existing skill (e.g., after a new Claude model release), evaluating or validating a…
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
# Expert Skill Creator <skill_scope skill="expert-skill-creator"> **Related skills:** - `skill-creator:skill-creator` (Anthropic) - Basic skill mechanics (e.g., directory structure, packaging) and an evaluation loop for testing skills - `opinionated-software-engineering:software-engineer` - Design principles that inform skill architecture - `opinionated-software-engineering:test-driven-development` - Validation methodology parallels **Load this skill together with Anthropic's `skill-creator:skill-creator` when creating skills.** `skill-creator:skill-creator` covers basic mechanics (e.g., directory structure and packaging) and an evaluation loop for testing skills; this skill covers content quality, structure, and validation. …
Read the whole file at its exact version.
How to install
mdr add pyroxin/opinionated-claude-skills/expert-skill-creator@sha256:3eec0d088df70ba9The line at the top of this page pins the label git:20261013.271bbad, 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_4rnbb674l2gbqc24)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 12 versions of this file, between Jun 30, 2026 and Oct 13, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261013.271bbad latest | 2026-10-13 | 271bbad | 66,794 B | A | view · diff |
| git:20261008.fd9a344 | 2026-10-08 | fd9a344 | 66,789 B | A | view · diff |
| git:20261008.4b2530b | 2026-10-08 | 4b2530b | 66,051 B | A | view · diff |
| git:20261006.9bbae0c | 2026-10-06 | 9bbae0c | 61,935 B | A | view · diff |
| git:20261004.4e1a1e7 | 2026-10-04 | 4e1a1e7 | 61,931 B | A | view · diff |
| git:20261004.3463521 | 2026-10-04 | 3463521 | 83,934 B | A | view · diff |
| git:20261003.cdf5f7b | 2026-10-03 | cdf5f7b | 80,860 B | A | view · diff |
| git:20260905.dcc860d | 2026-09-05 | dcc860d | 78,217 B | A | view · diff |
| git:20260817.0315fc1 | 2026-08-17 | 0315fc1 | 73,712 B | A | view · diff |
| git:20260730.408d091 | 2026-07-30 | 408d091 | 71,374 B | A | view · diff |
| git:20260701.7f79589 | 2026-07-01 | 7f79589 | 66,783 B | A | view · diff |
| git:20260630.264e18d | 2026-06-30 | 264e18d | 66,121 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 (66794 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
pyroxin/opinionated-claude-skills · 9 stars · license EPL-2.0 · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4rnbb674l2gbqc24 GET https://markdownregistry.com/api/v1/resolve?ref=pyroxin/opinionated-claude-skills/expert-skill-creator GET https://markdownregistry.com/api/v1/blob/3eec0d088df70ba995a9b5f1c1f09354c51268248b9efd5f63352796070f4a11
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.