summarize
Fetch a URL or convert a local file (PDF/DOCX/HTML/etc.) into Markdown using uvx markitdown, optionally it can summarize
- Installs
- 281
- Last 24h
- —
- Trending rank
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- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/mitsuhiko/agent-stuff --skill summarize- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads summarize automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Turn “things” (URLs, PDFs, Word docs, PowerPoints, HTML pages, text files, etc.) into Markdown so they can be inspected/quoted/processed like normal text.
markitdown can fetch URLs by itself; this skill mainly wraps it to make saving + summarizing convenient.
For PDF inputs, use the markitdown[pdf] extra (or the wrapper below, which now does this automatically).
When to use
Use this skill when you need to:
- pull down a web page as a document-like Markdown representation
- convert binary docs (PDF/DOCX/PPTX) into Markdown for analysis
- quickly produce a short summary of a long document before deeper work
Quick usage
Convert a URL or file to Markdown
Run from this skill folder (the agent should cd here first):
uvx --from 'markitdown[pdf]' markitdown <url-or-path>
To write Markdown to a temp file (prints the path) use the wrapper:
node to-markdown.mjs <url-or-path> --tmp
Tip: when summarizing, the script will always write the full converted Markdown to a temp .md file and will always print a final "Hint" line with the path (so you can open/inspect the full content).
Write Markdown to a specific file:
uvx --from 'markitdown[pdf]' markitdown <url-or-path> > /tmp/doc.md
Convert + summarize with haiku-4-5 (pass context!)
Summaries are only useful when you provide what you want extracted and the audience/purpose.
node to-markdown.mjs <url-or-path> --summary --prompt "Summarize focusing on X, for audience Y. Extract Z."
Or:
node to-markdown.mjs <url-or-path> --summary --prompt "Focus on security implications and action items."
This will:
- convert to Markdown via
uvx --from 'markitdown[pdf]' markitdown - write the full Markdown to a temp
.mdfile and print its path as a "Hint" line - run
pi --model claude-haiku-4-5(no-tools, no-session) to summarize using your extra prompt
FAQ
What does the summarize skill do?
Fetch a URL or convert a local file (PDF/DOCX/HTML/etc.) into Markdown using uvx markitdown, optionally it can summarize
How do I install summarize?
Run npx skills add https://github.com/mitsuhiko/agent-stuff --skill summarize in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/summarize/ (personal) or .claude/skills/summarize/ (project).
Which AI agents can use summarize?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is summarize safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains summarize?
It is published by mitsuhiko in mitsuhiko/agent-stuff. It has 281 recorded installs.
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