Skill UI

AFL++ is an advanced fork of AFL that runs multi-core campaigns, supports diverse mutations, and targets large C/C++ codebases with stable tooling via Docker or host builds.

Guidelines for building Convex backends with TypeScript, detailing syntax, validators, schema design, queries, mutations, actions, scheduling, and file storage so you can implement Convex database operations, real-time updates, and cron jobs consistently.

This comprehensive guide establishes strict architectural and performance standards for senior frontend engineers working with React, TypeScript, and Suspense. It dictates best practices for component design, feature implementation, data fetching (useSuspenseQuery), and code structure (feature-based organization). Use this when building any new component, feature, or handling data mutation to ensure the resulting application is scalable, predictable, and maintainable.

Guides API developers through building well-structured GraphQL mutations with best-practice patterns, production-ready code, and validation help whenever “graphql mutation builder” appears in the request.

A comprehensive guide to optimizing interactions with the Linear API. Learn advanced techniques to improve application performance by eliminating N+1 queries, implementing robust caching strategies for static data (e.g., teams, states), managing cache invalidation via webhooks, and efficiently batching multiple mutations into single GraphQL requests. Essential for building scalable, low-latency SaaS applications.

Mutation Test Runner delivers automated help for configuring and executing mutation testing workflows, offering best practices, code samples, and validation steps whenever mutation test runner patterns or automation requests appear.

Introduces deliberate code mutations, reruns the suite, and reports surviving mutants plus a mutation score whenever the user asks to assess or improve test effectiveness.

Guides building Next.js Server Actions for App Router forms, mutations, and optimistic updates, covering useFormState/useFormStatus hooks, revalidation helpers, and post-submission redirects.

Document outlines testing strategies such as contract, snapshot, mutation, property-based, integration with containers, and disciplined test organization to help teams design reliable suites that cover behavior, API contracts, and invariants.

Guides building and scaling Convex backends with TypeScript schemas, queries, mutations, real-time subscriptions, auth, file storage, scheduling, and deployment across React, Next.js, Angular, Vue, Svelte, and RN.

This powerful tool leverages DNSTwist, a comprehensive domain permutation engine, to detect various forms of domain impersonation. It generates thousands of potential lookalike domains (including typosquatting, attribute flaws, and homographs) and performs deep checks on DNS records, web page similarity (ssdeep/pHash), and registration status. It is vital for security analysts and threat hunters to proactively monitor for brand squatting and sophisticated phishing threats targeting an organization.

tRPC allows developers to build highly type-safe APIs in a full-stack environment without needing to write or maintain separate schemas. It provides end-to-end type safety from server routers to client components, supporting queries, mutations, subscriptions, and robust middleware. Ideal for building modern TypeScript monorepos, Next.js, or Remix applications.