bretfisher/skills · .agents/skills/skill-creator/SKILL.md

skill-creator skillA

skill-creator is agent-read markdown (skill) from bretfisher/skills: Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy..

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

Latest version
mdr add bretfisher/skills/skill-creator@git:20260608.879e4b9
Exact content
mdr add bretfisher/skills/skill-creator@sha256:dcd4803e61e913e6

Pin 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_z33e3xjhewupz42p.svg)](https://markdownregistry.com/a/art_z33e3xjhewupz42p)

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Versions

versioncommittedcommitsizeaudit
git:20260608.879e4b9 latest2026-06-08 879e4b9 33,168 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (33168 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

GitHub

bretfisher/skills · 17 stars · license MIT · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_z33e3xjhewupz42p
GET https://markdownregistry.com/api/v1/resolve?ref=bretfisher/skills/skill-creator
GET https://markdownregistry.com/api/v1/blob/dcd4803e61e913e6fc27294184cd3a71f09f5e924ff20c8a9a20173e7b3c2bcf

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.