oaustegard/claude-skills · plugins/development-tools/skills/composing-html/SKILL.md

composing-html skillB

composing-html is agent-read markdown (skill) from oaustegard/claude-skills: Composes single-file HTML artifacts (PR review writeups, status reports, incident postmortems, slide decks, design systems, prototypes, flowcharts, module maps, feature explainers, kanban boards, prompt tuners) from a small JSON spec instead of hand-written HTML/CSS/JS. Use when the user asks to "compare options side-by-side", requests an HTML version of a report or review or deck, asks for a flowchart, status update, postmortem, design system reference, interactive prototype, custom editor — or.

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 oaustegard/claude-skills/composing-html@v0.5.0
Exact content
mdr add oaustegard/claude-skills/composing-html@sha256:8f895e2cddcec414

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_hsosnvzukmxfprec.svg)](https://markdownregistry.com/a/art_hsosnvzukmxfprec)

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Versions

versioncommittedcommitsizeaudit
v0.5.0 latest2026-07-25 4b31e7d 12,760 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • fail: No script tag (matched: <script)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12760 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

Source

GitHub

oaustegard/claude-skills · 148 stars · license MIT · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hsosnvzukmxfprec
GET https://markdownregistry.com/api/v1/resolve?ref=oaustegard/claude-skills/composing-html
GET https://markdownregistry.com/api/v1/blob/8f895e2cddcec414b24cec8b807363716521c130594dbe3242c9fe197d9300ff

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