11 Free GitHub Repos That Turn Claude Code Into a Whole Team (with install commands)
Long video4:55 minComment keyword REPOS
Developer, designer, writer, researcher and manager: with these 11 free, open-source repos, Claude Code becomes a whole team. For each one: what it does, who it is for, how to install it and where to be careful.
In this video
Commands that start with / go inside Claude Code. The others go in a terminal.
Superpowers
317K ★MITClaude asks what you are building first, writes a spec in short chunks, makes a plan with red/green tests, then sub agents build and review.
Install
/plugin install superpowers@claude-plugins-officialPonytail
190K ★MITThe "laziest senior dev": seven questions before any code, then the smallest code that works. Its own benchmark: 53% less code, 41% less time.
Install
/plugin marketplace add DietrichGebert/ponytail/plugin install ponytail@ponytailBe careful: Install only from DietrichGebert/ponytail on GitHub or @dietrichgebert/ponytail on npm. The README warns about fake copies.
ECC
302K ★MITA big toolbox: 71 agents, 314 skills, memory, and an AgentShield security scan.
Install
npx ecc-universal@2.2.3 setupBe careful: Official sources only: github.com/affaan-m/ECC and the npm package ecc-universal. The README says fake mirrors may contain malware.
Impeccable
109K ★Apache-2.0Gives your coding agent design words: bolder, quieter, polish, critique, audit. 24 commands, a 62-rule detector, and a live mode in the browser.
Install
npx impeccable install/impeccable initBe careful: Run the install in your project root. Live mode is for a local checkout only, and its hooks run outside model approval: read the README first.
UI UX Pro Max
149K ★MITA design system generator: 192 colour palettes, 74 font pairings and 25 chart types to pick from.
Install
/plugin marketplace add nextlevelbuilder/ui-ux-pro-max-skill/plugin install ui-ux-pro-max@ui-ux-pro-max-skillDiagram Design
67K ★MITDescribe a diagram in plain words and get one self-contained HTML + SVG file. About 45-50 diagram types, matched to your site's colours and fonts.
Install
/plugin marketplace add cathrynlavery/diagram-design/plugin install diagram-design@diagram-designHumanizer
68K ★MITRemoves the signs of AI writing, based on Wikipedia's "Signs of AI writing" list. It does not try to get past AI detectors.
Install
/plugin marketplace add blader/humanizer/plugin install humanizer@humanizerBe careful: Needs Claude Code 2.1.142 or newer.
Last30Days
67K ★MITResearches the last 30 days on Reddit, X, YouTube, Hacker News, Polymarket and the web, ranked by real upvotes, likes and money.
Install
/plugin marketplace add mvanhorn/last30days-skill/plugin install last30daysAnthropic Skills
194K ★Mixed (many Apache-2.0)The official skills behind Claude's Word, Excel, PowerPoint and PDF features. Marked by Anthropic as demonstration and educational.
Install
/plugin marketplace add anthropics/skills/plugin install document-skills@anthropic-agent-skillsPPT Master
76K ★MITTurns a PDF, a DOCX or just a topic into a native, editable PowerPoint with shapes, charts, tables and animations. Runs on your computer.
Install
git clone https://github.com/hugohe3/ppt-master.gitcd ppt-master && pip install -r requirements.txtBe careful: Needs Python 3.10 to 3.14.
Paperclip
113K ★MITRuns a company of agents: org chart, CEO, engineer and marketer agents, budgets and a dashboard.
Install
npx paperclipai@latest onboard --yes
Good to know
- Note: Claude Code needs a paid Claude plan; the repos are free and open source. Star counts as of 13 Nov 2026. Install only from the official GitHub pages.
Facts checked on 13 Nov 2026. Star counts, prices and plans change: check the official page before you pay for anything.