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html-to-markdown SKILL.md skillA

html-to-markdown from appautomaton/markmaton is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add appautomaton/markmaton/html-to-markdown@git:20260424.a276cf3

Pins git:20260424.a276cf3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
appautomaton/markmaton
Path
skills/html-to-markdown/SKILL.md
Versions recorded
4
Latest version
git:20260424.a276cf3, committed Apr 24, 2026
First version recorded
Apr 9, 2026
Size
2,517 bytes
Repository stars
5
License
MIT

Convert a URL or HTML into clean Markdown with metadata using markmaton. Handles browser capture for JS-heavy pages and deterministic HTML-to-Markdown conversion in one skill.

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

# HTML to Markdown

## Composes with

- **Called by** — `RECIPES.md` `parse-jd` recipe (step 1). Any capture-a-web-page task in the workspace prefers this over built-in `WebFetch`.
- **Wraps** — nodriver (CDP-based headless browser capture for JS-heavy pages, with Playwright Chromium discovery) and markmaton (HTML→Markdown with main-content extraction, metadata, and link/image inventory). See `references/integration-patterns.md` for browser-vs-fetch guidance.
- **Outputs** — JSON envelope by default (markdown body + metadata + links + images + quality signals). Use `--output-format markdown` when only the raw Markdown body is needed.

Converts a URL or HTML into clean Markdown plus metadata, links, images, and quality signals.

## From a URL

Capture the page and convert in one pipeline:

```bash
uv run --script scripts/capture_html.py <url> \
  | uv run --script scripts/markmaton_convert.py --from-capture --output-format json
```

The capture script outputs a JSON envelope by default. `--from-capture` reads it and extracts `html`, `url`, `final_url`, and `content_type` automatically — no context lost, URL typed once.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add appautomaton/markmaton/html-to-markdown@sha256:141f840c60aa84d0

The line at the top of this page pins the label git:20260424.a276cf3, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_zzazce3e6u7wtn36.svg)](https://markdownregistry.com/a/art_zzazce3e6u7wtn36)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Apr 9, 2026 and Apr 24, 2026, about one every 5 days.

versioncommittedcommitsizeaudit
git:20260424.a276cf3 latest2026-04-24 a276cf3 2,517 BA view · diff
git:20260411.c83d0672026-04-11 c83d067 1,886 BA view · diff
git:20260409.da26e062026-04-09 da26e06 1,627 BA view · diff
git:20260409.53a89572026-04-09 53a8957 1,533 BA view

Audit of the latest version

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 (2517 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

appautomaton/markmaton · 5 stars · license MIT · pushed 2026-09-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_zzazce3e6u7wtn36
GET https://markdownregistry.com/api/v1/resolve?ref=appautomaton/markmaton/html-to-markdown
GET https://markdownregistry.com/api/v1/blob/141f840c60aa84d09ce6664396dd04a4ccff7d4c699ca3044c6b021499d53054

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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