Free Resources
The Classified library.
Everything here is free. Guides that teach you to work with an AI agent, skill packs that teach your AI new jobs, and the tools we actually use. It is the same shelf we pull from for client builds.
Already have an AI?
Paste one line and it finds the right guide or skill pack for you.
Guides
Learn to work with an AI agent
15 plain-English guides, from your first install to building real things.
Open the guides →Skill packs
Teach your AI to do more
6 small packs of skills, grouped by job. One prompt installs a pack.
Pick a pack →Repos and tools
What we actually use
The agents, standards, and open-source tools behind every build.
See the tools →New to AI agents? Start with the ten-minute setup guide. You need a paid plan from one of the two: Claude plans ↗ or ChatGPT plans ↗
Skill packs
A skill is a ready-made instruction set your AI loads to do one job well. Copy a pack's install prompt into Claude Code, Codex, or any agent that supports skills, and it installs the whole pack for you.
PACK 015 SKILLS
Think and Plan Better
Make your AI a sharper thinking partner before it builds anything.
Needs: Nothing extra.
PACK 026 SKILLS
Writing and Content
Copy that sounds human, and posts people actually read.
Needs: Nothing extra.
PACK 034 SKILLS
Research and Reading
Read the web cleanly, crawl whole sites, and keep watch on your sources.
Needs: Node.js for defuddle, a free Cloudflare account and API token for cloudflare-crawl, and Go for blogwatcher. Each skill explains its own setup.
PACK 044 SKILLS
Docs and Decks
Proposals, PDFs, notes, and slide decks without the busywork.
Needs: Python for pdf. The skill lists the packages it uses.
PACK 056 SKILLS
Build Sites and Apps
Better-looking front ends, real browser testing, and current docs while you code.
Needs: Python and Playwright for webapp-testing, and the GitHub CLI (gh) for github. A free Context7 key is optional.
PACK 063 SKILLS
Modding
Mod your PC games without breaking them: safe installs, crash fixes, custom content.
Needs: Nothing extra. Pairs with the three modding guides.
Repos and tools
Anthropic's AI agent. Runs in your terminal and works on your files.
OpenAI's AI agent. Same idea, runs on a ChatGPT plan.
Our screened skills for Claude Code, Codex, and other agents. Free, MIT licensed.
The open format skills are written in, so one skill works across agents.
How agents connect to other apps, from Unity to your browser.
Unity's official skills for building games with Claude Code or Codex.
Open-source mod manager that keeps mods out of the game folder.
Free archive tool. Most mods ship as .7z or .zip files.
Free AI upscaler that turns game screenshots into sharp wallpapers.
Mod PC games? See the modding section for game guides, crash fixes, and downloads.
For your agent
Machine-readable versions of everything on this page. Paste them into your assistant, point it at the URL, or drop the files into your project.
All guides, one file
Every guide plus the index, ready to paste into Claude, ChatGPT, Codex, or Zo.
Guide index
One line per guide describing the questions it answers. Agents fetch this first, then the one guide they need.
Skill library
All 207 skills as SKILL.md folders. Works with Claude Code, Codex, and any agent that supports the Agent Skills standard.
Want this running for you, not by you?
Every Classified build ships with the skill library preloaded and an assistant that already knows how to use it. Tell us what your system should handle and we will scope it.