composing-html SKILL.md skillB
composing-html from oaustegard/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add oaustegard/claude-skills/composing-html@v0.5.0Pins v0.5.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- oaustegard/claude-skills
- Path
composing-html/SKILL.md- Versions recorded
- 5
- Latest version
- v0.5.0, committed Jul 21, 2026
- First version recorded
- May 20, 2026
- Size
- 12,760 bytes
- Repository stars
- 158
- License
- MIT
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 —…
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
# composing-html Produce single-file HTML artifacts without hand-writing the page chrome. The composer supplies `<!DOCTYPE>`, `<head>`, inlined CSS, `base.js`, design tokens, masthead, and colophon. You supply a title and the body content. The product is the **chrome and inventory below** — primitives you can drop into any artifact without re-deriving what a card, badge, or eyebrow looks like. Templates are shortcuts on top of this, useful when the same artifact shape repeats; see [Templates](#templates-shortcuts-for-repeat-structure) near the end. ## Default workflow: freeform `freeform` gives you the whole chrome with one content slot — `body_html` — for the page body. Reach for it first. Reach for a template only when the structure repeats across artifacts (see [Templates](#templates-shortcuts-for-repeat-structure) near the end). There are two ways to invoke it. **Use the `--set` flow for anything with a substantial body** — it sidesteps the JSON-string escaping that bites heredoc-style spec writing (newlines, quotes, `<`/`&` inside multi-line HTML). ### Recommended: HTML in a file, metadata via `--set` ``` …
Read the whole file at its exact version.
How to install
mdr add oaustegard/claude-skills/composing-html@sha256:8f895e2cddcec414The line at the top of this page pins the label v0.5.0, 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_d3gg4tbzz4lkqjum)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 20, 2026 and Jul 21, 2026, about one every 16 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.5.0 latest | 2026-07-21 | c9f6527 | 12,760 B | B | view · diff |
| v0.5.0 | 2026-06-04 | 6a96b26 | 12,710 B | B | view · diff |
| v0.4.1 | 2026-05-21 | c8359ed | 10,327 B | B | view · diff |
| v0.4.0 | 2026-05-21 | 491cb18 | 12,394 B | B | view · diff |
| v0.3.0 | 2026-05-20 | 704ec47 | 10,327 B | B | view |
Audit of the latest version
- 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
oaustegard/claude-skills · 158 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_d3gg4tbzz4lkqjum GET https://markdownregistry.com/api/v1/resolve?ref=oaustegard/claude-skills/composing-html GET https://markdownregistry.com/api/v1/blob/8f895e2cddcec414b24cec8b807363716521c130594dbe3242c9fe197d9300ff
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.
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