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Updated 4w ago

by ckorhonen

claude-skills

A curated collection of skills for Claude Code and Codex — specialized capabilities across development, design, AI, security, and more. Part of the cdd.dev/skills family.

Works with
  • Claude
  • Codex

20 GitHub stars (20)

+2 in 25 days

Stars gained per day · daily snapshots since Sep 30
Stars gained per day, Sep 30 to Oct 25: +2 in total; the busiest day was Oct 12 with +1 stars.Oct 1: 0 starsOct 2: 0 starsOct 3: 0 starsOct 4: 0 starsOct 5: 0 starsOct 6: 0 starsOct 7: 0 starsOct 8: 0 starsOct 9: 0 starsOct 10: 0 starsOct 11: 0 starsOct 12: +1 starsOct 13: 0 starsOct 14: 0 starsOct 15: 0 starsOct 16: 0 starsOct 17: 0 starsOct 18: 0 starsOct 19: 0 starsOct 20: 0 starsOct 21: 0 starsOct 22: 0 starsOct 23: 0 starsOct 24: 0 starsOct 25: +1 stars
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  • 30 skills (30 skills found in its SKILL.md files)
  • 0 forks (0 forks)
  • 4w ago last update (Last updated 4w ago)

Install

Skills CLI

npx skills add ckorhonen/claude-skills

Asks which skills and agents to install. Just one: npx skills add ckorhonen/claude-skills --skill agent-browser — add -g for every project.

Claude Code

git clone https://github.com/ckorhonen/claude-skillscp -r "claude-skills/skills/agent-browser" ~/.claude/skills/

Copies the agent-browser skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add ckorhonen/claude-skills

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md — showing the first 30 of 62 files.

  • agent-browser

    Automate headless browser interactions using agent-browser CLI. Use when scraping web pages, automating form submissions, testing web apps, or performing browser automation tasks. Works with element refs (@e1, @e2) optimized for AI agent reasoning.

    skills/agent-browser/SKILL.md on GitHub (opens in a new tab)
  • agent-engineering

    Battle-tested engineering principles for AI coding agents. Covers plan-first workflow, subagent delegation, self-improvement loops, verification gates, elegant solutions, autonomous bug fixing, and structured task management. Use when configuring agent behavior, writing AGENTS.md files, or improving agent reliability and code quality.

    skills/agent-engineering/SKILL.md on GitHub (opens in a new tab)
  • app-marketing-copy

    Write marketing copy and App Store / Google Play listings (ASO keywords, titles, subtitles, short+long descriptions, feature bullets, release notes), plus screenshot caption sets and text-to-image prompt templates for generating store screenshot backgrounds/promo visuals. Use when asked to: write/refresh app marketing copy, craft app store metadata, brainstorm taglines/value props, produce ad/lan…

    skills/app-marketing-copy/SKILL.md on GitHub (opens in a new tab)
  • ascii-pixel-art

    Generate animated ASCII art from images with subject detection, blurred pixelated backgrounds, and dynamic visual effects. Use when asked to create ASCII art, convert an image to ASCII, generate pixel art, add animated text art effects, or make retro-style visual art from photos.

    skills/ascii-pixel-art/SKILL.md on GitHub (opens in a new tab)
  • autopredict

    Wrap the howdymary/autopredict Polymarket trading-agent repo. Use when you need to scan live Polymarket markets, inspect structural event mispricing, evaluate a market with your own fair probability, run reproducible backtests against a JSON dataset, tune strategy parameters safely, or review the repo's paper/live trading scaffolds and failure modes.

    skills/autopredict/SKILL.md on GitHub (opens in a new tab)
  • autoresearch

    Run a rigorous autonomous experiment loop for any optimization target using explicit hypotheses, repeated trials, structured experiment logs, and local HTML reports. Use when asked to "run autoresearch", "optimize X in a loop", "start experiments", or "improve this with benchmark-driven iteration".

    skills/autoresearch/SKILL.md on GitHub (opens in a new tab)
  • babysit-pr

    Create, monitor, and shepherd a GitHub pull request end-to-end: respect repo PR templates, watch CI and reviews, fix branch-related failures, address valid comments, and validate post-merge deployment when possible.

    skills/babysit-pr/SKILL.md on GitHub (opens in a new tab)
  • bird-fast

    Post tweets, read threads, search X/Twitter from the terminal using the bird CLI. Use when automating Twitter/X, posting from scripts, analyzing tweet threads, monitoring mentions, or working with the Twitter API without OAuth setup.

    skills/bird-fast/SKILL.md on GitHub (opens in a new tab)
  • blockchain-auditor

    Security audit smart contracts for exploitable vulnerabilities from an unprivileged context. Use when analyzing Solidity contracts, reviewing bytecode, testing exploits on forks, or searching for ways to extract funds without owner access. Covers verified and unverified contracts, bytecode disassembly, vulnerability ranking, proof-of-concept exploit generation, DeFi protocol attacks, and cross-ch…

    skills/blockchain-auditor/SKILL.md on GitHub (opens in a new tab)
  • brainstorming

    Explore user intent, requirements and design before implementation through structured dialogue and design proposals. Use when asked to: create features, build components, add functionality, modify behavior, plan projects, or when user says 'help me design X', 'what should we build', 'let's brainstorm', or starts describing a new feature without a design.

    skills/brainstorming/SKILL.md on GitHub (opens in a new tab)
  • ceo-review

    Review documents, proposals, and plans through the lens of a CEO. Simulates feedback from a founder-CEO who is technical, data-driven, and focused on long-term vision while navigating market volatility. Use when you want high-level strategic review: does this idea make sense as a company bet? Is the team right-sized? Will this survive a downturn? Is it community-first?

    skills/ceo-review/SKILL.md on GitHub (opens in a new tab)
  • ck-review

    Review documents, proposals, and plans through the lens of a senior principal engineer. Simulates feedback from a technically deep IC who values clarity, pragmatism, and shipping velocity. Use when you want direct, blunt technical feedback on a proposal, architecture doc, design doc, or spec — especially around structure, tradeoffs, and scope.

    skills/ck-review/SKILL.md on GitHub (opens in a new tab)
  • cloudflare-manager

    Comprehensive Cloudflare account management for deploying Workers, KV Storage, R2, Pages, DNS, and Routes. Use when deploying cloudflare services, managing worker containers, configuring KV/R2 storage, or setting up DNS/routing. Requires CLOUDFLARE_API_KEY in .env and Bun runtime with dependencies installed.

    skills/cloudflare-manager/SKILL.md on GitHub (opens in a new tab)
  • codex-advisor

    Get a second opinion from OpenAI Codex CLI for plan reviews, code reviews, architecture decisions, and hard problems. Use when you need external validation, want to compare approaches, or are stuck on a difficult problem.

    skills/codex-advisor/SKILL.md on GitHub (opens in a new tab)
  • content-trend-researcher

    Research content trends and generate data-driven article outlines by analyzing Google Trends, Reddit, LinkedIn, X, Substack, Medium, YouTube, and more. Use when asked to research content ideas, find trending topics, generate article outlines, analyze audience intent, or when user says "what should I write about", "find trending topics in X", or "research content ideas".

    skills/content-trend-researcher/SKILL.md on GitHub (opens in a new tab)
  • continuous-learning

    Capture reusable knowledge and create new skills automatically during coding sessions, problem solving, and retrospectives. Use when finishing a complex task, running a retrospective, discovering a reusable pattern, or when user says "save this as a skill", "capture this solution", "run a retrospective", or "what did we learn from this".

    skills/continuous-learning/SKILL.md on GitHub (opens in a new tab)
  • coreml-optimizer

    Optimize CoreML models for iOS and macOS deployment. Covers quantization, palettization, pruning, Neural Engine targeting, compute unit selection, and performance profiling. Use when converting ML models to CoreML, optimizing model size/latency, debugging Neural Engine issues, or benchmarking on-device inference.

    skills/coreml-optimizer/SKILL.md on GitHub (opens in a new tab)
  • cto-review

    Review documents, proposals, and plans through the lens of a CTO. Simulates feedback from a technical leader who has built and scaled multiple companies and values platform thinking, mobile-first craft, and iterative execution. Use when you need engineering leadership review: platform strategy, architecture decisions, team structure proposals, or anything that needs a 'will this scale and can we…

    skills/cto-review/SKILL.md on GitHub (opens in a new tab)
  • direct-mail-strategist

    Expert direct mail marketing strategist for writing compelling copy, designing high-converting mail pieces, and developing measurement strategies. Use when planning direct mail campaigns, writing mailer copy, designing postcards/letters, or measuring campaign effectiveness with incremental lift analysis.

    skills/direct-mail-strategist/SKILL.md on GitHub (opens in a new tab)
  • evangelion-design

    Design original Evangelion-inspired web and mobile interfaces with NERV-like command-center, HUD, psychographic, sync-monitor, breach-warning, and title-card language: sharp geometry, tactical typography, disciplined data density, danger-first palettes, wireframe analysis forms, repeated instrument arrays, and mechanical animation. Use when users ask for Evangelion, NERV, anime control room UI, s…

    skills/evangelion-design/SKILL.md on GitHub (opens in a new tab)
  • executing-plans

    Execute a written implementation plan with review checkpoints and structured progress tracking. Use when you have a spec or plan ready to implement, when user says "execute this plan", "implement this spec", "carry out these steps", or "start working on the plan".

    skills/executing-plans/SKILL.md on GitHub (opens in a new tab)
  • freshdesk-api

    Expert in Freshdesk helpdesk API for building integrations, extracting support data, managing tickets/contacts/companies, and automating support workflows. Use when working with Freshdesk, building helpdesk integrations, analyzing support ticket data, or creating customer support applications.

    skills/freshdesk-api/SKILL.md on GitHub (opens in a new tab)
  • gemini-image-generator

    Generate images using Google's Gemini API. Use when creating images from text prompts, editing existing images, or combining reference images for AI-generated visual content.

    skills/gemini-image-generator/SKILL.md on GitHub (opens in a new tab)
  • gemini-visual

    Visual and front-end development assistant powered by Google Gemini's multimodal models. Use for UI analysis, design comparison, accessibility audits, color palette extraction, screenshot-to-code conversion, generating UI assets, and text-based design assistance from briefs.

    skills/gemini-visual/SKILL.md on GitHub (opens in a new tab)
  • github-actions-templates

    Create production-ready GitHub Actions workflows for automated testing, building, and deploying applications. Use when setting up CI/CD with GitHub Actions, automating development workflows, or creating reusable workflow templates.

    skills/github-actions-templates/SKILL.md on GitHub (opens in a new tab)
  • google

    Personal assistant for Google Workspace using gog CLI. Search Gmail, manage Calendar, organize Drive, update Sheets, track Tasks, and lookup Contacts. Use when triaging email, scheduling meetings, finding availability, searching documents, managing tasks, or any Google service interaction from the terminal.

    skills/google/SKILL.md on GitHub (opens in a new tab)
  • gsplat-optimizer

    Optimize 3D Gaussian Splat scenes for real-time rendering on iOS, macOS, and visionOS. Use when working with .ply or .splat files, targeting mobile/Apple GPU performance, or needing LOD, pruning, or compression strategies for 3DGS scenes.

    skills/gsplat-optimizer/SKILL.md on GitHub (opens in a new tab)
  • hyperagent

    Run a self-referential self-improving agent loop where a meta-agent iteratively modifies a task-agent's code to optimize for any measurable target. Based on Facebook Research's Hyperagents paper (arXiv:2603.19461). Use when asked to "run hyperagent", "self-improve this", "optimize with self-modification", or "evolve this agent/script".

    skills/hyperagent/SKILL.md on GitHub (opens in a new tab)
  • idea-md

    Create or expand an Idea.md / IDEA.md file from a rough description, existing repo, conversation history, notes, or other early-stage product inputs. Use when the user asks to "write an Idea.md", "turn this into an idea file", "capture this product idea", "expand this concept", or wants a repo-grounded concept brief before validation, PRD, or implementation work.

    skills/idea-md/SKILL.md on GitHub (opens in a new tab)
  • imagegen

    Use when the user asks to generate or edit images via the OpenAI Image API (for example: generate image, edit/inpaint/mask, background removal or replacement, transparent background, product shots, concept art, covers, or batch variants); run the bundled CLI (`scripts/image_gen.py`) and require `OPENAI_API_KEY` for live calls.

    skills/imagegen/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.