Types
Type checking and type generation
uaa
by zap-studio
Universal Application Architecture (UAA) specification
tailuge-messaging
by tailuge
Integration guide for @tailuge/messaging library. Use when building applications with: - Real-time presence/lobby systems - User matchmaking via challenges - Game table communication with players and spectators - Nchan-powered transport layer
sysml-v2-guide-validator
by LnYo-Cly
Provide SysML v2 guidance, examples, and official-first validation for .sysml/.kerml work. Use when Codex needs to generate SysML v2 syntax, review or explain SysML v2 project code, validate single files, validate multi-file imports, validate whole directories, run official Pilot-based checks, or apply bundled SysML v2 standard library context during analysis.
loader-action-optimizer
by code-visionary
Best practices for React Router v7 loaders and actions - parallel fetching, deferred data, optimistic UI, and error handling patterns
jotai
by yusenthebot
👻 Primitive and flexible state management for React. Use when: building component-based UIs; client-side state and rendering; interactive user interfaces. NOT for: server-side CLI utilities; database access layer.
bcryptjs
by yusenthebot
Optimized bcrypt in plain JavaScript with zero dependencies, with TypeScript support. Compatible to 'bcrypt'.. Use when: From GitHub via jsDelivr: ; Callback<T>: (err: Error null, result?: T) => void ; ProgressCallback: (percentage: number) => void . NOT for: runtime application logic; package management (use npm/yarn).
verify
by biruk741
Run comprehensive validation against a completed plan. Checks each phase's implementation against PLAN.md requirements, then runs project-wide tests, lint, and type checks.
react-state-driven-ui
by lucascmelo
Create React UI as a projection of explicit state transitions using reducer + events. Use when building multi-step forms, async operations, cross-component state, navigation integration, real-time updates, or complex validation. Eliminates timing-dependent bugs through explicit state transitions and isolated side effects.
supabase-postgres-best-practices
by Jackiexiao
（中文）Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.
precoil-emt
by Stripmined-reflation431
"Use this skill when the user wants to test a business idea, strategy, or initiative against real-world risk. Triggers include: 'test my idea', 'what are the riskiest assumptions', 'help me validate this', 'run EMT on this', 'extract assumptions', 'assumption mapping', 'what could go wrong with this plan', 'pressure test this', 'validate this plan', 'what could go wrong with this strategy', 'identify hidden risk in this idea', or any request to pressure-test a business decision before committing resources. Runs a guided Extract → Map → Test system based on David J. Bland's Precoil methodology."
git-commit
by bresends
Create git commits using conventional commits with scopes. Use when the user asks to commit, make a commit, save changes, or any git commit operation. Never include Co-Authored-By lines, AI agent mentions, or any reference to Claude, AI, or automated tooling in commit messages.
design
by saselvan
"Design Ops v3.1. Journey → PRP → Issues → TDD. Tiered pipeline with invariant enforcement, devil's advocate, and e2e testing. USE WHEN design, PRP, validate, requirements, init project, review implementation."
spores
by liet-codes
Directory of works-in-progress seeking collaborators. Register projects, discover collaborators, search by tags.
test-generation
by Protagonistss
分析源代码并生成对应的单元测试用例。
db-core-codegen
by pranshu-shah-at-sandbox
"End-to-end workflow for TypeScript db-core modules: discover schema/model inputs, run DB/document/DAO generation, scaffold DB/document converters, and scaffold procedures with capability-aware validation and safe persistence boundaries. Use when the user asks to regenerate db-core artifacts, generate beans/DAOs from schemas, scaffold or update converters, or scaffold procedure CRUD methods. Trigger keywords: db-core, Db beans, DAO, converter, procedure."
python-backend-fastapi
by janjaszczak
FastAPI + Pydantic v2 backend workflow: implement/modify API endpoints with thin handlers + service layer, add pytest tests, manage idempotent Alembic migrations, and implement streaming ETL/parsers with invalid-row CSV logging. Use this skill when working on Python backend APIs, schema changes, or ingestion/parsing pipelines.
interactor
by Vehmloewff
Guidance for using the interactor CLI to drive a running browser session via socket events.
cli-patterns
by vanman2024
Lightweight Go CLI patterns using urfave/cli. Use when building CLI tools, creating commands with flags, implementing subcommands, adding before/after hooks, organizing command categories, or when user mentions Go CLI, urfave/cli, cobra alternatives, CLI flags, CLI categories.
strategy-pattern-go
by progmichaelkibenko
Implements the Strategy pattern in Go backends. Run when the user mentions strategy pattern, or when you see or need a switch on type/method, multiple behaviors under the same contract, or interchangeable algorithms—apply this skill proactively without the user naming it.
polar-better-auth
by tuzzy08
Deep integration of Polar payments with Better Auth. Use for zero-config billing, automatic customer syncing, usage-based billing, and customer portals when using Better Auth.
fastify-docs
by wzs
Fastify documentation skill. Use when implementing or debugging Fastify services, verifying API behavior (routes, hooks, plugins, validation, request/reply lifecycle), planning migrations, or answering Fastify questions with source-grounded documentation.
@clack/prompts
by yusenthebot
Effortlessly build beautiful command-line apps 🪄 Try the demo. Use when: 🤏 80% smaller than other options; 💎 Beautiful, minimal UI; 🧱 Comes with text, confirm, select, multiselect, and spinner components. NOT for: web browser UI rendering; server-side HTML generation.
add-cuda-kernel
by slurpyb
Step-by-step tutorial for adding new CUDA kernels to FlashInfer
frontend-angular
by teodevlor
Angular (v17+) frontend development conventions. Use when working on Angular projects.