Best error handling skills for Claude Code, Codex and other agents.

Sets patterns for React interfaces: when to show loading spinners or skeletons, how to surface errors, how to disable buttons during async work and how to handle empty lists.

ChrisWiles/claude-code-showcase

A catalog of recurring bug shapes in the Mole Mac cleaner, used to review safety-sensitive diffs for deletion safety, unbounded commands, shell traps and weak tests.

tw93/Mole

A skill your agent uses when implementing or debugging ANY network request, API call, or data fetching.

CherryHQ/cherry-studio-app

Sets layered architecture and coding rules for Node.js, Express and TypeScript microservices, covering routes, controllers, services, repositories, Prisma, Sentry and Zod.

diet103/claude-code-infrastructure-showcase

Designs REST and GraphQL APIs from resource modeling to an OpenAPI 3.1 contract, with versioning, pagination and RFC 7807 error handling.

Jeffallan/claude-skills

Guide for writing idiomatic Rust code based on Apollo GraphQL's best practices handbook.

farm-fe/farm

Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5.

langflow-ai/langflow

Enforces that every error in a service is captured to Sentry v8, with patterns for controllers, routes, cron jobs and database performance spans instead of console logging alone.

diet103/claude-code-infrastructure-showcase

Build terminal user interfaces (TUIs) using Ink (React for CLIs) and @inkjs/ui with a reactive, session-driven wizard pattern.

novuhq/novu

Sets the backend TypeScript and Cloud VM rules for cmux: Effect-based services, thin route handlers, Postgres as source of truth, migrations and provider secrets.

manaflow-ai/cmux

Validates arguments of exported R functions with the standalone check_* type checkers from rlang, in tidyverse style with clear error messages.

tidyverse/dplyr

Makes the desktop app's model provider fail on demand, with refused connections, resets, stalls and HTTP 4xx and 5xx errors, so error and retry states can be reproduced.

different-ai/openwork

统一错误处理系统。在添加 API 端点、修改错误处理、添加前端 API 调用、编写错误相关测试时使用. An agent skill from microsoft/data-formulator.

microsoft/data-formulator

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

UsefulSoftwareCo/executor

Next.js best practices - file conventions, RSC boundaries, data patterns, async APIs, metadata, error handling, route handlers, image/font optimization, bundling

vercel-labs/openreview

A skill your agent uses when adding a new domain to Nuclear's plugin system, or implementing a host.

nukeop/nuclear

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

jasonjgardner/blockbench-mcp-plugin

Registers a new syncable entity in three NestJS modules and adds its service and GraphQL resolver layers when contributing to the Twenty server.

twentyhq/twenty

Reviews seekdb pull requests and diffs for real defects in correctness, resources, concurrency, security and tests, reporting only Blocker or Major findings.

oceanbase/seekdb

Fires known chat states in the running OpenWork desktop app, such as provider errors, retries and tool steps, so you can check how each renders.

different-ai/openwork

Master Rust async programming with Tokio, async traits, error handling, and concurrent patterns.

diodeme/Gold-Band

Migrate codebase from try/catch or Promise-based error handling to better-result.

nikivdev/ts

Build full-stack React applications using React Router's framework mode.

curvenote/curvenote

NestJS backend development patterns for the RedisInsight API: module structure, services, controllers, DTOs, dependency injection, and error handling.

redis/RedisInsight

Writes, reviews, and debugs idiomatic Rust code with memory safety and zero-cost abstractions.

farm-fe/farm

Make interfaces production-ready: error handling, empty states, onboarding flows, i18n, text overflow, and edge case management.

zhushen12580/smart-screenshot

A skill your agent uses when building email features, emails going to spam, high bounce rates, setting up SPF/DKIM/DMARC authentication, implementing email capture, ensuring compliance (CAN-SPAM…

viclafouch/meme-studio

Shared reference for naming, function size, complexity and error handling rules that reviewer agents apply across TypeScript, Python, Go, Rust, Java, C# and Swift.

zereight/gitlab-mcp

Comprehensive code review for Java - clean code principles, API contracts, null safety, exception handling, and performance.

piomin/claude-ai-spring-boot

Python development guidance with code quality standards, error handling, testing practices, and environment management.

databricks-solutions/ai-dev-kit

HASH error handling patterns using error-stack crate. An agent skill from hashintel/hash.

hashintel/hash

Software design philosophy guide based on John Ousterhout's "A Philosophy of Software Design." Use this skill during: code reviews, architecture discussions, API design, module decomposition…

luoling8192/software-design-philosophy-skill

SvelteKit structure guidance. An agent skill from spences10/svelte-claude-skills.

spences10/svelte-claude-skills

Bash/Linux terminal patterns. An agent skill from xenitV1/Antigravity-Workflows.

xenitV1/Antigravity-Workflows

Use @data-client/react hooks for data fetching, mutations, and rendering - useSuspense, useFetch, useQuery, useCache, useLive, useDLE, useSubscription, useController, DataProvider, AsyncBoundary…

reactive/data-client

Guide and audit Node.js CLI application development against 41 established best practices covering UX, distribution, interoperability, accessibility, testing, error handling, development setup…

lirantal/nodejs-cli-apps-best-practices

Read before adding or changing backend code in lightlystudio - FastAPI routes, services, resolvers, SQLModel tables, or database access.

lightly-ai/lightly-studio

Review code for correct logging and error handling patterns.

getsentry/toolkit

Wires n8n workflows so failures are visible and recoverable: per-node error outputs, retries, error workflows and correct 4xx and 5xx webhook responses.

czlonkowski/n8n-skills

API route implementation patterns with RLS, validation, and error handling. Use when creating API routes, implementing CRUD endpoints, adding…

bybren-llc/safe-agentic-workflow

Create REST/GraphQL API endpoint with validation, error handling, and tests.

qf-studio/navigator

Runs a structured critique of code, architecture or APIs to surface what familiarity hides, such as panics, security holes and design debt.

yologdev/yoyo-evolve

Improve interface resilience through better error handling, i18n support, text overflow handling, and edge case management.

boussadjra/vuestrata

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

kurealnum/dotfiles

Write Go error handling code using the goerr library. An agent skill from secmon-lab/warren.

secmon-lab/warren

Sets idiomatic Go conventions with a test-first workflow, using testify/require for assertions and mockery for mocks, for new features, packages and refactors.

jumppad-labs/jumppad

Adds a new LLM provider implementing LLMProvider interface with call() and stream() methods.

caliber-ai-org/ai-setup

Runs a Python script with checks first: confirms the interpreter version, compiles it for syntax errors, verifies imports, then explains any traceback in plain language.

congchuanling-dot/Cohort