AI Standards

Open-source AI coding skills for Claude Code, Cursor, Copilot, and AI agents

Skills for TypeScript, React, React Native, local-first apps, offline sync, and modern web development.

Quick Install

# Full bundle (all skills + agents)
/plugin marketplace add guillempuche/ai-standards

# Or install individually
/plugin marketplace add guillempuche/ai-skill-powersync
/plugin marketplace add guillempuche/ai-skill-effect-lookup
/plugin marketplace add guillempuche/ai-skill-unikraft
/plugin marketplace add guillempuche/ai-skill-tamagui
/plugin marketplace add guillempuche/ai-skill-test-bdd
/plugin marketplace add guillempuche/ai-agent-readability-improver
/plugin marketplace add guillempuche/ai-agent-a11y-accessibility-reviewer

Skills Catalog

powersync

Build local-first, offline-capable apps with real-time sync


Platforms	Web, React Native, Node.js, Capacitor, Electron
Frameworks	React, Vue, Angular
ORMs	Kysely, Drizzle, TanStack DB
Backends	Postgres, MongoDB, MySQL, SQL Server, Supabase

View skill | PowerSync docs

effect-lookup

Quick lookup for Effect TypeScript library APIs and patterns


Coverage	Core Effect, Platform, CLI, RPC, SQL, AI packages
Features	Module reference, common patterns, source code lookup
Includes	MCP server integration for indexed docs

View skill | Effect docs

unikraft

Kraft CLI for building and deploying Unikraft unikernels


Commands	Build, deploy, manage instances, volumes, services
Platform	Unikraft Cloud (KraftCloud)
Features	Rolling updates, scale-to-zero, compose support

View skill | Unikraft docs

tamagui

Universal React + React Native UI with optimizing compiler


Platforms	Web, React Native, iOS, Android
Frameworks	Next.js, Expo, Vite, Metro
Features	Design tokens, themes, 50+ accessible components
Compiler	Build-time style extraction for performance

View skill | Tamagui docs

test-bdd

Generate BDD-style tests that document behavior and test public API only


Style	GIVEN / WHEN / THEN / AND comments (flexible combinations)
Tooling	Vitest + testing-library (TypeScript-first, framework-agnostic principles)
Covers	Components, hooks, utilities, constants
Focus	Observable behavior over implementation details

View skill

Agents Catalog

readability-improver

Improve code readability through renaming, comments, and whitespace


Focus	Selective improvements - skips self-documenting code
Actions	Rename variables, add whitespace, document "why" not "what"
Safety	Never changes functionality, updates all imports

View agent

a11y-accessibility-reviewer

Review code for accessibility compliance (WCAG, VoiceOver, TalkBack)


Platforms	React, React Native, Web
Standards	WCAG 2.1/2.2, WAI-ARIA, iOS/Android a11y APIs
Coverage	Visual, motor, auditory, cognitive, vestibular issues

View agent

Compatibility

Skills follow the Agent Skills specification and work with:

Agent	Support
Claude Code	Native plugin support
Cursor	Via SKILL.md loading
VS Code Copilot	Via context files
Windsurf	Via context files
Gemini CLI	Via skill loading
Custom agents	Via agentskills.io spec

Creating Skills

Create folder under skills/ with lowercase hyphenated name
Add SKILL.md with YAML frontmatter:

---
name: your-skill
description: What it does and when to use it (max 1024 chars)
license: MIT
metadata:
  author: your-name
  version: "1.0"
---

# Your Skill

Instructions here...

Add references/ folder for detailed docs (keeps SKILL.md under 500 lines)

See AGENTS.md for full guidelines.

Naming Conventions

Plugin names and GitHub repo slugs follow different conventions on purpose:

Surface	Convention	Example
Marketplace plugin name (`/plugin` UI, `/plugin install`)	topic only, kebab-case	`powersync`, `test-bdd`, `readability-improver`
GitHub repo slug (`/plugin marketplace add guillempuche/…`)	`ai-{skill\|agent}-{topic}`	`guillempuche/ai-skill-powersync`, `guillempuche/ai-agent-readability-improver`
Mixed-type escape hatch (repo bundles both skills and agents)	`ai-plugin-{topic}`	`guillempuche/ai-plugin-toolbox`

Why the split: repo slugs are user-typed during marketplace add (one-time, and guillempuche/powersync would look like a library fork). Plugin names live inside the /plugin UI where users already know they're browsing Claude plugins, so a prefix would be noise.

Install command shape combines both:

/plugin install powersync@guillempuche-ai-skill-powersync
#              └─plugin──┘ └────── marketplace ──────┘

Repository Structure

ai-standards/
├── .claude-plugin/
│   └── plugin.json          # Claude Code plugin manifest
├── skills/
│   └── <skill-name>/
│       ├── SKILL.md         # Main skill file
│       └── references/      # Detailed documentation
├── agents/
│   └── <agent-name>.md      # Agent with YAML frontmatter
├── templates/
│   ├── skills/              # Extra files for skill repos (REQUIREMENTS.md)
│   └── agents/              # Extra files for agent repos
├── scripts/
│   ├── generate-individual-repos.sh  # Generate dist-repos/
│   └── create-github-repos.sh        # Push to GitHub
├── AGENTS.md                # AI agent instructions
└── README.md

Individual Repos

Skills and agents are also published as individual repos for standalone installation:

# Add the marketplace (one-time, uses repo slug)
/plugin marketplace add guillempuche/ai-skill-powersync
/plugin marketplace add guillempuche/ai-agent-readability-improver

# Install the plugin (plugin name is topic-only, marketplace suffix is repo-slug form)
/plugin install powersync@guillempuche-ai-skill-powersync
/plugin install readability-improver@guillempuche-ai-agent-readability-improver

Generate individual repos with:

./scripts/generate-individual-repos.sh  # Creates dist-repos/
./scripts/create-github-repos.sh        # Pushes to GitHub

Standards

Agent Skills - Portable skill format for AI coding agents
AGENTS.md - Instructions for AI agents working on repositories

Contributing

Fork this repository
Create your skill under skills/ following the structure above
Validate: folder name matches name field, description under 1024 chars
Submit PR with title: [skill-name] Brief description

License

MIT