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llms.txtB

llms.txt from polar-bear-org/claude-skills is an llms.txt file: plain text a project publishes for AI models to read.

Install it, pinned

mdr add polar-bear-org/claude-skills/llms.txt@git:20261021.2218c32

Pins git:20261021.2218c32 in mdr.lock. Pin the fingerprint instead.

Audit grade: B, 13 of 14 checks passed
Kind: llms.txt file
Repository: polar-bear-org/claude-skills
Path: llms.txt
Versions recorded: 5
Latest version: git:20261021.2218c32, committed Oct 21, 2026
First version recorded: Oct 5, 2026
Size: 271,923 bytes
Repository stars: 51
License: a license file GitHub does not identify

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

# Claude Skills by Polar Bear

> A GitHub repository of themed Claude Skill (Agent Skill) packs for Claude Code and Claude.ai. Each pack is an installable Claude Code plugin bundling several SKILL.md skills plus the reference files they share. Repository: https://github.com/polar-bear-org/claude-skills

All packs with guides: https://meet-polar-bear.com/skills
This file on the website: https://meet-polar-bear.com/llms.txt

Install in Claude Code: `/plugin marketplace add polar-bear-org/claude-skills`, then `/plugin install <pack-name>@polar-bear-skills`.
Install on claude.ai: upload the per-skill zips from a pack's `install/` folder via Settings → Customize → Skills → Upload skill.
Install manually: copy `packs/<pack>/skills/*` into `~/.claude/skills/` or a project's `.claude/skills/`.

## Packs

37 packs, 1073 skills. Every pack has a page with a guide, screenshots and a zip download at https://meet-polar-bear.com/skills/<pack-name>.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add polar-bear-org/claude-skills/llms.txt@sha256:e28b45281f80a5aa

The line at the top of this page pins the label git:20261021.2218c32, 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](https://markdownregistry.com/badge/art_utypkhksbciqteb4.svg)](https://markdownregistry.com/a/art_utypkhksbciqteb4)

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

Versions

The registry has recorded 5 versions of this file, between Oct 5, 2026 and Oct 21, 2026, about one every 4 days.

version	committed	commit	size	audit
git:20261021.2218c32 latest	2026-10-21	2218c32	271,923 B	B	view · diff
git:20261011.dce569c	2026-10-11	dce569c	404,457 B	B	view · diff
git:20261005.7fc54cc	2026-10-05	7fc54cc	278,763 B	B	view · diff
git:20261005.f9cdf11	2026-10-05	f9cdf11	271,426 B	B	view · diff
git:20261005.3e1db7a	2026-10-05	3e1db7a	262,759 B	B	view

Audit of the latest version

B 13 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

fail: Size between 200 bytes and 200 KB (271923 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

Starting a new one? Use a template for llms.txt on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

polar-bear-org/claude-skills · 51 stars · license a license file GitHub does not identify · pushed 2026-10-26 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_utypkhksbciqteb4
GET https://markdownregistry.com/api/v1/resolve?ref=polar-bear-org/claude-skills/llms.txt
GET https://markdownregistry.com/api/v1/blob/e28b45281f80a5aac958e2232889660c6c408db82e16b3c4bdee6f19fff422e7

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: how to add an llms.txt file to a website · which agent file does what.

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