Best AI skills
A curated directory of the best AI skills — custom GPTs, Claude Skills and Gemini Gems — by use case: writing, coding, research, design, data, productivity and more.
What are AI skills?
AI skills are prebuilt capabilities you add to an assistant — custom GPTs, Claude Skills and Gemini Gems — that specialise it for one job, like writing, coding, research or design, so you get expert results without crafting the prompt yourself.
Writing & content3
Coding & dev12
- Code CopilotGPTPair-program, debug and ship across languages.
- Coding partnerGeminiExplain, generate and review code as you build.
- MCP builderClaudeScaffold a working MCP server from a spec.
- GrimoireGPTBuild apps from a prompt, with a coding course built in.
- SuperpowersClaudeA full brainstorm-to-merge agentic dev workflow.
- Karpathy BehaviouralClaudeTeach the agent to avoid the classic LLM coding pitfalls.
- CavemanClaudeCut agent output tokens by writing terse, high-signal replies.
- Code reviewerClaudeReview a diff like a careful senior engineer.
- Web app testingClaudeDrive your local app through Playwright to verify a change.
- Google Workspace CLIClaudeDrive all of Google Workspace from the assistant.
- skill-creatorClaudeScaffold and package a new Claude Agent Skill to the current spec.
- Trail of Bits Security SkillsClaudeRun professional security audits and static analysis from a coding agent.
Research & analysis6
- ConsensusGPTAnswer questions with evidence from real papers.
- Scholar GPTGPTSearch 200M+ papers and read them with you.
- WolframGPTCompute exact answers with Wolfram|Alpha.
- Deep ResearchGeminiPlan, browse and compile a cited report.
- AskYourPDFGPTChat with and cite any PDF or document.
- NotebookLMGeminiGround a research session in your own documents.
Design & images7
- Frontend designClaudeGive the assistant a real design system and taste.
- Image generatorGPTGenerate and refine images from a description.
- Logo CreatorGPTDesign clean logos and brand marks.
- Diagrams: Show MeGPTRender flowcharts and diagrams from text.
- Whimsical DiagramsGPTSketch flowcharts, mind maps and wireframes from text.
- HallmarkMultiGenerate web UI that doesn't read as AI-generated.
- video-useMultiEdit a folder of raw footage into a finished cut by chatting with an agent.
Productivity & docs5
- PowerPoint decksClaudeBuild polished slide decks, no template wrangling.
- PDF toolsClaudeFill, merge and extract data from PDFs.
- ChatPRDGPTDraft PRDs and product specs like a senior PM.
- Gemini in WorkspaceGeminiPull in Gmail, Docs, Drive and Calendar.
- ZapierGPTTrigger 7,000+ app automations from the chat.
Data & sheets3
Learning5
- Universal PrimerGPTLearn anything fast, from first principles.
- Learning coachGeminiStudy any topic with guided practice.
- Career guideGeminiExplore roles and build a path into them.
- SpeakGPTPractice a foreign language with a real tutor dynamic.
- Mr. RanedeerGPTAdaptive tutor — builds a curriculum to your level.
Marketing & social4
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