proto SKILL.md skillA
proto from byjunyoung/claude-product-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add byjunyoung/claude-product-skills/proto@git:20261019.f898b7aPins git:20261019.f898b7a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- byjunyoung/claude-product-skills
- Path
plugins/fig/skills/proto/SKILL.md- Versions recorded
- 12
- Latest version
- git:20261019.f898b7a, committed Oct 19, 2026
- First version recorded
- Aug 26, 2026
- Size
- 17,473 bytes
- Repository stars
- 5
- License
- a license file GitHub does not identify
Rebuilds a Figma design as a single HTML file in which input, validation, state and branching really work, for when the UX has to be pressed through before it is built. Triggers - "/fig:proto", "make a working prototype", "make this design actually clickable", "동작 프로토타입 만들어", "프로토타이핑 해줘", "실제로 눌러보고 입력되게".
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
# fig:proto — Figma design → working prototype (rebuilt in code)
**Part of a plugin.** The scripts this skill runs ship beside it under `${CLAUDE_PLUGIN_ROOT}`. If that path does not resolve, this file was installed on its own — stop and say the plugin itself is needed (`claude plugin install fig@byjunyoung`), rather than improvising what the scripts do.
**Rebuilds in code** what is drawn in Figma, producing a single HTML prototype where form input, validation, state changes, and dynamic branching actually work. Not a click-through demo of screenshots but something for **checking behaviour and getting a feel for the implementation spec** — you type a real value and watch the save land in the list.
**The premise:** because it is rebuilt in code, **the visuals are an approximation** (not pixel-perfect against the design) — in exchange, it actually runs. Build-less, dependency-less, single HTML, so it opens on a double click. For a presentation demo where pixel fidelity comes first, this is the wrong approach and a screenshot-based one is right (no dedicated skill for that; capture manually).
…Read the whole file at its exact version.
How to install
mdr add byjunyoung/claude-product-skills/proto@sha256:1115b73c151096dbThe line at the top of this page pins the label git:20261019.f898b7a, 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_76ufl7ndtfr7qkjh)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 12 versions of this file, between Aug 26, 2026 and Oct 19, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261019.f898b7a latest | 2026-10-19 | f898b7a | 17,473 B | A | view · diff |
| git:20261019.2fb81a6 | 2026-10-19 | 2fb81a6 | 16,663 B | A | view · diff |
| git:20261019.f831dc1 | 2026-10-19 | f831dc1 | 16,457 B | A | view · diff |
| git:20261019.18ca1ed | 2026-10-19 | 18ca1ed | 17,318 B | A | view · diff |
| git:20261019.5da3e66 | 2026-10-19 | 5da3e66 | 17,402 B | A | view · diff |
| git:20260907.9b38362 | 2026-09-07 | 9b38362 | 17,573 B | A | view · diff |
| git:20260907.bbe17ad | 2026-09-07 | bbe17ad | 17,587 B | A | view · diff |
| git:20260902.e34cec9 | 2026-09-02 | e34cec9 | 16,295 B | A | view · diff |
| git:20260828.72625bc | 2026-08-28 | 72625bc | 15,993 B | A | view · diff |
| git:20260826.eac0b64 | 2026-08-26 | eac0b64 | 15,856 B | A | view · diff |
| git:20260826.dfbfa9d | 2026-08-26 | dfbfa9d | 15,791 B | A | view · diff |
| git:20260826.0cf7d65 | 2026-08-26 | 0cf7d65 | 15,867 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 (17473 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
byjunyoung/claude-product-skills · 5 stars · license a license file GitHub does not identify · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_76ufl7ndtfr7qkjh GET https://markdownregistry.com/api/v1/resolve?ref=byjunyoung/claude-product-skills/proto GET https://markdownregistry.com/api/v1/blob/1115b73c151096dba3391e1ba40dce360536eb3d41472b1b02fc8133e071c581
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.