Best type safety skills for Claude Code, Codex and other agents.

Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications.

rolling-scopes/rsschool-app

Describes seven Rust design patterns for the RTK CLI filter modules, with when to use each, RTK examples, and notes on when a pattern is overkill.

rtk-ai/rtk

Run Kedro's local lint / format / type-check / tests on changed files (uses the project's pre-commit hooks, ruff, mypy, pytest, lint-imports, detect-secrets, Make targets — in the right venv), or…

kedro-org/kedro

Applies opinionated production Python conventions chosen by the project's Python version: modern type syntax, pathlib, explicit checks and interface guidance.

docling-project/docling

Guidelines for React 18 and TypeScript apps covering Suspense data fetching, lazy loading, feature folders, MUI v7 styling, TanStack Router and performance.

diet103/claude-code-infrastructure-showcase

Walks through adding a Wagmi feature across its layers: a Viem-based core action, TanStack Query options, and React and Vue bindings.

wevm/wagmi

A playbook for fixing ESLint and TypeScript errors in the OpenObserve web frontend, with rule-by-rule guidance and typing conventions.

openobserve/openobserve

Rules for choosing Rust types for filesystem paths in new Codex code, covering protocol types, internal use and model tool arguments.

openinterpreter/openinterpreter

Moves a legacy internal Ghost package from JavaScript and CommonJS to TypeScript and ESM in three focused commits that keep git file history intact.

TryGhost/Ghost

nuqs (type-safe URL query state) best practices for Next.js and other React frameworks.

trycompai/crm

Sets the rules for writing GraphQL queries and mutations in .gql files, running codegen, and using generated Apollo hooks with proper error and loading handling.

ChrisWiles/claude-code-showcase

Pattern for wrapping third-party SDK clients (Stripe, Resend, AWS, etc.) with Effect.

UsefulSoftwareCo/executor

Walks maintainers through bumping the pinned validator package in express-validator and syncing chain types, implementations and options with the new release.

express-validator/express-validator

Sets the file structure, typing and Data API pattern for writing a new Bootstrap-style JavaScript component class in Tabler's vendored port of Bootstrap's JS.

tabler/tabler

Zod schema validation best practices for type safety, parsing, and error handling.

jasonjgardner/blockbench-mcp-plugin

Gives repository-specific .NET guidance for GitVersion: build and test commands, central package management, project layout and coding conventions.

GitTools/GitVersion

Instructions for using whenever's internal Rust FFI abstractions

ariebovenberg/whenever

Walks through adding a message handler to NodeBridge in Neovate Code, from the implementation and its types to an optional test entry and a run with Bun.

neovateai/neovate-code

Replaces a plain TypeScript union plus switch statements with frozen subclasses and a visitor interface when several places dispatch on the same variants.

prisma/orm

Add, refactor, debug, review, explain, or migrate type-safe validation in consumer Go applications using github.com/cohesivestack/valgo.

cohesivestack/valgo

Documents public methods of the meilisearch-php SDK with compact PHPDoc, including @see links, @since tags and the experimental-feature notice.

meilisearch/meilisearch-php

Set up Husky pre-commit hooks with lint-staged (Prettier), type checking, and tests in the current repo.

fossasia/eventyay-interpretation

Create a bumpy bump file describing which packages changed and how, for version bumping and changelog generation.

zap-studio/monorepo

Best practices for polars data processing with dataframely. An agent skill from Quantco/dataframely.

Quantco/dataframely

在仓库内按代码生成器模板、项目 reference 文档和既有约定生成或修改代码。用于新增或修改 CRUD 模块、controller/service/mapper/BO/VO/entity、MyBatis-Plus/MPJ 查询、数据权限、缓存、翻译/JSON 增强、公共 common 模块能力、JavaDoc 注释，以及与后端接口配套的 Vue 3 + TypeScript…

dromara/RuoYi-Cloud-Plus

Utilities for browser extensions - proxy services for cross-context RPC, type-safe messaging, URL match patterns, fake browser for testing, job scheduling, and shadow DOM isolation.

mengxi-ream/read-frog

Vue 3 and Vue.js best practices for TypeScript, vue-tsc, and Volar.

oyjt/uniapp-vue3-template

Teaches an agent to write fp-go v2 services with the Effect type, carrying dependencies in its type parameter instead of in context.Context or parameters.

IBM/fp-go

Write or improve software documentation using the Diátaxis framework — four documentation types (tutorials, how-to guides, reference, explanation), each serving a different user need.

calf-ai/calfkit-sdk

Walks through the first of six steps for adding a syncable entity to Twenty's server: metadata name, TypeORM entity, flat types and central constants.

twentyhq/twenty

Land a PR that requires a coordinated ts-mono submodule change.

UKGovernmentBEIS/inspect_ai

TypeScript and JavaScript expert with deep knowledge of type-level programming, performance optimization, monorepo management, migration strategies, and modern tooling.

cin12211/orca-q

Routine update of all project dependencies — uv itself, uv.lock (all groups), tool versions pinned in GitHub workflows and .pre-commit-config.yaml (uv, ruff, mypy...), and SHA-pinned GitHub Actions.

alorence/django-modern-rpc

Build a Fast Dash web app from a Python function. An agent skill from dkedar7/fast_dash.

dkedar7/fast_dash

Rules and references for building Obsidian plugins: ESLint rules, TypeScript practices, memory cleanup, API choices, UI standards and the community submission process.

gapmiss/obsidian-plugin-skill

Explains which of the three PSL syntax tree layers to use with Prisma's parser output, and how to move between them without hand-written walks.

prisma/orm

A skill your agent uses when reviewing PRs, code changes, or conducting code audits in obsidian-terminal.

polyipseity/obsidian-terminal

Review CausalPy pull requests end-to-end by classifying PR type, checking branch freshness, mergeability, remote CI, correctness, security, tests, docs, and maintainer concerns.

pymc-labs/CausalPy

Guides styling of Jaspr web components with the type-safe Styles API in Dart, covering @css annotations, inline styles and global stylesheets.

rodydavis/signals.dart

A skill your agent uses whenever writing, modifying, reviewing, or debugging code involving Celeste, celeste-ai, celeste-python, import celeste, src/celeste, or withceleste app integrations.

withceleste/celeste-python

Work with the merjs Zig web framework. An agent skill from justrach/merjs.

justrach/merjs

Expert code reviewer for TypeScript + React 19 applications.

SuFxGIT/scoutarr

Uses the Outlines library to constrain model output to a JSON schema, Pydantic model, regex or fixed set of choices when running local models.

Orchestra-Research/AI-Research-SKILLs

Write or review k6 documentation across the three k6 repositories - k6-DefinitelyTyped (TypeScript types), k6-docs (user documentation), and k6 (release notes / changelog).

grafana/skills

LobeHub TypeScript style and type-safety guide. An agent skill from tahabasri/snippets.

tahabasri/snippets

Generates or hand-writes composable lenses for the fp-go library so nested Go structs can be read and updated immutably.

IBM/fp-go

A skill your agent uses when working in projects that use fp-pack; follow pipe, SideEffect, and curry guidelines.

superlucky84/fp-pack

Pythonic idioms, PEP 8 standards, type hints, and best practices for building robust, efficient, and maintainable Python applications.

kurealnum/dotfiles