21st-dev-components SKILL.md skillA
21st-dev-components from j-star-films-studios/vibecode-protocol-suite is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add j-star-films-studios/vibecode-protocol-suite/21st-dev-components@git:20260820.4dbe9e4Pins git:20260820.4dbe9e4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- j-star-films-studios/vibecode-protocol-suite
- Path
assets/.agent/skills/frontend-ui/21st-dev-components/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260820.4dbe9e4, committed Aug 20, 2026
- Size
- 9,157 bytes
- Repository stars
- 26
- License
- ISC
Use when the user wants to build a React site or app section from 21st.dev components, clone the structure of a reference site with 21st.dev building blocks, browse 21st.dev manually and return copied prompts/code, or says things like "build me a site like this", "use 21st.dev", "copy prompt", "component URL", "hero from 21st", or "match this landing page with ready-made components".
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
# 21st.dev Reference-to-Component Skill This skill routes between two flows: - **Auto mode**: the user provides a reference site URL and wants the agent to inspect it, infer the required sections, choose matching 21st.dev components automatically, and integrate them. - **Manual mode**: the user wants guided collection. The agent lists the sections, tells the user what to fetch from 21st.dev, then integrates the returned handoff. Use this skill only for **React-family** projects. If the repo is not React-based, explain that v1 of this skill is React-only and stop. ## Bundled Resources - `references/categories.md` Use for section-to-category mapping and direct 21st.dev category URLs. - `references/manual-handoff-template.md` Use when the user is gathering components manually. - `references/section-detection-rubric.md` Use during Auto mode after crawling the reference site. - `scripts/resolve-21st-component.mjs` Resolve a 21st.dev component page into normalized metadata. - `scripts/fetch-21st-source.mjs` Fetch raw source from 21st CDN URLs. - `scripts/build-manual-handoff-template.mjs` Generate a manual handoff markdown file for the user. …
Read the whole file at its exact version.
How to install
mdr add j-star-films-studios/vibecode-protocol-suite/21st-dev-components@sha256:5f436ecb9482b3d2The line at the top of this page pins the label git:20260820.4dbe9e4, 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_44qzr4ymon27zdkr)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 20, 2026.
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 (9157 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
j-star-films-studios/vibecode-protocol-suite · 26 stars · license ISC · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_44qzr4ymon27zdkr GET https://markdownregistry.com/api/v1/resolve?ref=j-star-films-studios/vibecode-protocol-suite/21st-dev-components GET https://markdownregistry.com/api/v1/blob/5f436ecb9482b3d226a84dcaf1a5b639b374ceac878f1326214bbed6e0a81318
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.