Collection · What to install after the agent

The Claude Code power kit

7 picks · 3 of the atlas's 14 topics · 1,006,642 combined stars · snapshot 2026-10-22

Claude Code is the harness the largest single share of this atlas is built for. Installing it is ten seconds; the next hour is the part nobody writes down. These seven cover the format skills come in, three bundles worth reading before writing your own, the two things that make long sessions cheaper, and where to look when you want more. Every project here targets Claude Code, and the build checks that too.

Open all 7 in the atlas →

From there: save them to your own projects, or export the set as Markdown, a standalone HTML page, or a PDF.

Runs on: Windows WSL2 macOS Linux Docker

  1. 1 The format

    Agent Skills

    anthropics/skills

    Anthropic's own repository for Agent Skills: the SKILL.md format, a template and worked examples. Read this first and every other skills bundle in the atlas becomes legible.

    by Anthropic - Anthropic's official repository for Agent Skills — the SKILL.md format, a skill template, and example skills, the same format Claude Code loads natively

    git clone https://github.com/anthropics/skills.git

    182,764 stars · 7 of 39 lists · Python · no licence stated · pushed 2026-10-09

    Windows WSL2 macOS Linux Docker

    Agent Skills Claude CodeClaude / AnthropicMCPCursor

  2. 2 The bundle

    Superpowers

    obra/superpowers

    Core software-engineering competencies covering most of the SDLC, well organised and adaptable. It is the most-starred skills project here and the one most often forked as a starting point.

    by Jesse Vincent - A strong bundle of core competencies for software engineering, with good coverage of a large portion of the SDLC - from planning, reviewing, testing, debugging... Well written, well organized, and adaptable. The author refers to them as "superpowers", but many of them are just consolidating engineering best practices - which sometimes does feel like a superpower when working wit

    git clone https://github.com/obra/superpowers.git

    303,157 stars · 7 of 39 lists · Shell · MIT · pushed 2026-10-21

    Windows WSL2 macOS Linux Docker

    Agent Skills Claude CodeClaude / AnthropicMCPCodex / OpenAIGemini / GoogleGitHub CopilotCursor

  3. 3 The instructions file

    andrej-karpathy-skills

    multica-ai/andrej-karpathy-skills

    A drop-in CLAUDE.md distilling four behavioural guidelines, derived from Andrej Karpathy's public notes on LLM coding pitfalls. One file, and the cheapest improvement on this page.

    by multica-ai - A drop-in CLAUDE.md distilling four behavioral guidelines for LLM-assisted coding into Claude Code — a low-friction quick win. Karpathy-inspired, derived from Andrej Karpathy's public notes on LLM coding pitfalls and authored by multica-ai

    git clone https://github.com/multica-ai/andrej-karpathy-skills.git

    221,949 stars · 3 of 39 lists · no licence stated · pushed 2026-04-20

    Windows WSL2 macOS Linux Docker

    Agent Skills Claude CodeClaude / Anthropic

  4. 4 The engineering set

    addyosmani/agent-skills

    addyosmani/agent-skills

    Production-grade engineering skills, and portable: it also targets MCP, Codex and Cursor, so what you learn here is not stranded if you change harnesses.

    Production-grade engineering skills for AI coding agents, packaged as 24 reusable skills covering the full development lifecycle from /spec to /ship. The slash-command interface and context-aware auto-activation make it a concrete reference for turning senior-engineering judgment into agent-executable harness artifacts

    npx skills add addyosmani/agent-skills # install all 25 skills

    109,328 stars · 4 of 39 lists · JavaScript · MIT · pushed 2026-10-13

    Windows WSL2 macOS Linux Docker

    Agent Skills Claude CodeClaude / AnthropicMCPCodex / OpenAIGemini / GoogleCursor

  5. 5 The token diet

    Caveman

    JuliusBrussee/caveman

    Conserves tokens by shortening what the agent says back to you. It reads like a joke and is not one -- long sessions are mostly the model narrating, and Windows support is stated.

    by Julius Brussee - A plugin that conserves message tokens by communicating in fragmented "caveman speak" - sort of a clever form of compression. Now accompanied by a whole caveman ecosystem including a memory system, caveman spec kit, and a caveman agent

    irm https://raw.githubusercontent.com/JuliusBrussee/caveman/v4.0.1/install.ps1 | iex

    114,132 stars · 2 of 39 lists · Go · Apache-2.0 · pushed 2026-10-21

    Windows WSL2 macOS Linux Docker

    Agent Skills Claude CodeClaude / AnthropicCodex / OpenAI

  6. 6 The bill

    ccusage

    ccusage/ccusage

    One npx command reports what your Claude Code sessions have actually cost. Zero install, no account, and the first honest number most people see.

    by ryoppippi - A zero-install CLI (npx ccusage) that analyzes Claude Code token usage and cost from local JSONL logs — daily, monthly, per-session, and 5-hour-block breakdowns, a live monitoring mode, and per-model cost estimates. Runs entirely locally, with JSON output for scripting

    git clone https://github.com/ccusage/ccusage.git

    19,115 stars · 4 of 39 lists · Rust · no licence stated · pushed 2026-10-21

    Windows WSL2 macOS Linux Docker

    Observability & Evals Claude CodeClaude / AnthropicCodex / OpenAI

  7. 7 Where to look next

    awesome-claude-code

    hesreallyhim/awesome-claude-code

    The specialist list for this harness. When the kit above stops being enough, this is the catalogue to read rather than a search box to guess into.

    Curated resources, tools, and workflows specifically for Claude Code users

    git clone https://github.com/hesreallyhim/awesome-claude-code.git

    56,197 stars · 3 of 39 lists · Python · no licence stated · pushed 2026-10-22

    Windows WSL2 macOS Linux Docker

    Docs, Learning & Lists Claude CodeClaude / Anthropic

The whole set, in one paste

Every install command above, in the order they are listed. Read them before you run them — they are other people's one-liners, and 1 of them pipes a download straight into a shell.

git clone https://github.com/anthropics/skills.git
git clone https://github.com/obra/superpowers.git
git clone https://github.com/multica-ai/andrej-karpathy-skills.git
npx skills add addyosmani/agent-skills # install all 25 skills
irm https://raw.githubusercontent.com/JuliusBrussee/caveman/v4.0.1/install.ps1 | iex
git clone https://github.com/ccusage/ccusage.git
git clone https://github.com/hesreallyhim/awesome-claude-code.git