This file is byte-identical to the first copy the registry indexed, one of 29 indexed copies. Same content hash, so the same checks give both the same grade.
skill-creator from spoon94/skill-vault is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
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.
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
# Skill Creator
A skill for creating new skills and iteratively improving them.
At a high level, the process of creating a skill goes like this:
- Decide what you want the skill to do and roughly how it should do it
- Write a draft of the skill
- Create a few test prompts and run claude-with-access-to-the-skill on them
- Help the user evaluate the results both qualitatively and quantitatively
- While the runs happen in the background, draft some quantitative evals if there aren't any (if there are some, you can either use as is or modify if you feel something needs to change about them). Then explain them to the user (or if they already existed, explain the ones that already exist)
- Use the `eval-viewer/generate_review.py` script to show the user the results for them to look at, and also let them look at the quantitative metrics
- Rewrite the skill based on feedback from the user's evaluation of the results (and also if there are any glaring flaws that become apparent from the quantitative benchmarks)
- Repeat until you're satisfied
- Expand the test set and try again at larger scale
…
The line at the top of this page pins the label git:20260520.f8f6935, 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.
A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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
spoon94/skill-vault · 5 stars · license MIT · pushed 2026-10-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5kj7nwhlmbr7kwnw
GET https://markdownregistry.com/api/v1/resolve?ref=spoon94/skill-vault/skill-creator
GET https://markdownregistry.com/api/v1/blob/dcd4803e61e913e6fc27294184cd3a71f09f5e924ff20c8a9a20173e7b3c2bcf
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.
spoon94/skill-vault · agentsview-cli/SKILL.md · Use when running or scripting the agentsview CLI from the command line — querying, searching, syncing, exporting, or…
spoon94/skill-vault · anthropics/skills/algorithmic-art/SKILL.md · Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users…
spoon94/skill-vault · anthropics/skills/brand-guidelines/SKILL.md · Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having…
spoon94/skill-vault · anthropics/skills/canvas-design/SKILL.md · Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user…
spoon94/skill-vault · anthropics/skills/claude-api/SKILL.md · Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching…
spoon94/skill-vault · anthropics/skills/doc-coauthoring/SKILL.md · Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation…
spoon94/skill-vault · anthropics/skills/docx/SKILL.md · Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files) or Word…
spoon94/skill-vault · anthropics/skills/frontend-design/SKILL.md · Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with…
spoon94/skill-vault · anthropics/skills/internal-comms/SKILL.md · A set of resources to help me write all kinds of internal communications, using the formats that my company likes to…
spoon94/skill-vault · anthropics/skills/mcp-builder/SKILL.md · Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external…
spoon94/skill-vault · anthropics/skills/pdf/SKILL.md · Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables…
spoon94/skill-vault · anthropics/skills/pptx/SKILL.md · Use this skill any time a .pptx or .potx file is involved in any way — as input, output, or both. This includes…
anthropics/skills · skills/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
bytedance/deer-flow · skills/public/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
cherryhq/cherry-studio · resources/skills/skill-creator/SKILL.md · Create, edit, evaluate, and optimize skills, including benchmarking and description tuning for better triggering.
hkuds/deeptutor · deeptutor/skills/builtin/skill-creator/SKILL.md · Design and author DeepTutor skills (SKILL.md packages). Use when the user wants to create a new skill, improve an…
anthropics/claude-plugins-official · plugins/skill-creator/skills/skill-creator/SKILL.md · Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a…
volcengine/openviking · bot/workspace/skills/skill-creator/SKILL.md · Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
garrytan/gbrain · plugin/skills/skill-creator/SKILL.md · Create new skills following the GBrain conformance standard. Generates SKILL.md
with frontmatter, Contract, Phases…
garrytan/gbrain · skills/skill-creator/SKILL.md · Create new skills following the GBrain conformance standard. Generates SKILL.md
with frontmatter, Contract, Phases…
