summarize-anything SKILL.md skillA

summarize-anything from swyxio/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add swyxio/skills/summarize-anything@v1.0

Pins v1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
swyxio/skills
Path
summarize-anything/SKILL.md
Versions recorded
4
Latest version
v1.0, committed Sep 12, 2026
First version recorded
Mar 28, 2026
Size
25,464 bytes
Repository stars
194
License
MIT

Summarizes arbitrarily long text (1k-1M words) using recursive map-reduce with any LLM backend. Accepts raw text, markdown, transcripts, articles, codebases, or any plaintext input. Produces one or more output formats: executive summary, section headings with timestamps, YouTube description, Twitter/X posts, title options, thumbnail prompts, blog outlines, pull quotes, and more. Supports focus directives ("focus on the AI parts", "emphasize the business angle") to steer the summary. Pluggable…

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

# Summarize Anything

Recursive map-reduce summarization for arbitrarily long text, with pluggable LLM backends and a wide variety of output formats.

When the requested output is reader-facing prose or publishing copy for swyx,
apply `swyx-writing` after the factual reduction step. Keep extractive summaries,
quotations, timestamps, and structured data faithful to the source rather than
rewriting them into a voice.

## Setup

### Required

```bash
which curl || echo "curl is required (should be pre-installed on macOS)"
which jq || brew install jq
```

### LLM Backends (at least one required)

```bash
# Local — no API key needed, runs on your machine
# Install Ollama: https://ollama.com
ollama pull llama3.1:8b        # 4.7GB, 128k context
ollama pull qwen2.5:32b        # 18GB, 128k context (if you have RAM)

# Cloud — set the relevant env var
export OPENAI_API_KEY=sk-...           # GPT-4.1 (1M context, $2/M input)
export ANTHROPIC_API_KEY=sk-ant-...    # Claude Sonnet 4 (200k context)
export GEMINI_API_KEY=...              # Gemini 3.1 Pro (1M context, free tier available)
export OPENROUTER_API_KEY=sk-or-...    # Any model via OpenRouter
```

### Verify

```bash
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add swyxio/skills/summarize-anything@sha256:71efed454436b7f4

The line at the top of this page pins the label v1.0, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_pq6jaxhhdlobz2fc.svg)](https://markdownregistry.com/a/art_pq6jaxhhdlobz2fc)

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

Versions

The registry has recorded 4 versions of this file, between Mar 28, 2026 and Sep 12, 2026, about one every 56 days.

versioncommittedcommitsizeaudit
v1.0 latest2026-09-12 6ee419c 25,464 BA view · diff
v1.02026-05-25 35b20fb 25,387 BA view · diff
v1.02026-03-28 6c544a7 25,387 BA view · diff
v1.02026-03-28 a44ca32 25,387 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 (25464 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

swyxio/skills · 194 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_pq6jaxhhdlobz2fc
GET https://markdownregistry.com/api/v1/resolve?ref=swyxio/skills/summarize-anything
GET https://markdownregistry.com/api/v1/blob/71efed454436b7f40b5dfdcbc4a395f35aad6e1280cbcf68523e3461c0477939

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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