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Programming, frameworks, implementation, frontend, backend, and app development
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- React QueryGuidelines for using React Query for data fetching, caching, and server state synchronization in React applicationsVotes: 0GitHub stars: 4
- React PerformanceReact performance: unnecessary re-renders, memoization (React.memo/useMemo/useCallback), React Compiler, Context, concurrent features, code splitting, and Core Web Vitals.Votes: 0GitHub stars: 4
- React Best PracticesReact/Next.js best-practices reviewer for TSX/JSX. Triggers when writing or reviewing React components to check structure, hooks, accessibility, performance, and TypeScript patterns.Votes: 0GitHub stars: 4
- Race ConditionRace condition and TOCTOU testing for web apps. Use when testing one-time operations, concurrent HTTP abuse, rate-limit bypass, Turbo Intruder gates, HTTP/2 single-packet attacks, and CWE-362-style synchronization gaps.Votes: 0GitHub stars: 4
- Pro State MachineProfessional React state-machine patterns. Use when implementing complex state logic, reducers, multi-step forms, async flows, or any component coordinating multiple states.Votes: 0GitHub stars: 4
- Prisma PostgresPrisma Postgres setup and operations — Console, create-db CLI, Management API, and the TypeScript SDK. Use when provisioning Prisma Postgres databases, linking a local project, or integrating programmatic provisioning with service tokens or OAuth.Votes: 0GitHub stars: 4
- PostmanFull API lifecycle via the Postman MCP Server — sync OpenAPI specs to collections, generate typed clients, run API tests, create mocks, publish docs, OWASP audits. Use for Postman, collections, specs, mocks, or SDKs.Votes: 0GitHub stars: 4
- Postgresql Code ReviewReview SQL, schemas, and migrations for PostgreSQL best practices — JSONB, arrays, ENUMs/domains, PL/pgSQL, RLS, privileges. Use when reviewing any PostgreSQL DDL, query, function, or migration.Votes: 0GitHub stars: 4
- Playwright Best PracticesWrite, debug, and maintain Playwright tests — flaky tests, Page Object Model, locators/waits, fixtures, network mocking, auth, CI/CD. Covers E2E, component, API, visual, a11y, and extension testing.Votes: 0GitHub stars: 4
- Owasp Security ReviewReview code and architectures against the OWASP Top 10:2025. Use to audit for vulnerabilities, guide remediation, or write secure code. Triggers: "security review", "OWASP audit", "check for vulnerabilities", "is this code secure".Votes: 0GitHub stars: 4
- Nodejs Backend PatternsBuild production-ready Node.js backend services with Express/Fastify — middleware, error handling, auth, database integration, and API design. Use when creating Node.js servers, REST APIs, GraphQL backends, or microservices.Votes: 0GitHub stars: 4
- Nextjs PerformanceNext.js performance optimization for Core Web Vitals, image/font optimization, caching, streaming, bundle size, and Server Components. Use when fixing LCP/INP/CLS, implementing next/image or next/font, configuring unstable_cache, converting Client to Server Components, streaming with Suspense, or reducing bundle size. Covers Next.js 16 + React 19 patterns.Votes: 0GitHub stars: 4
- Nextjs Best PracticesNext.js App Router principles. Server Components, data fetching, routing patterns.Votes: 0GitHub stars: 4
- Nestjs Best PracticesNestJS best practices — 40 rules across modules, DI, error handling, security, performance, testing, database, API design, microservices, and deployment. Use when writing, reviewing, or refactoring NestJS code.Votes: 0GitHub stars: 4
- Mermaid DiagramsCreate software diagrams in Mermaid — class, sequence, flowchart, ERD, C4, state, gitgraph, gantt. Use to "diagram", "visualize", "map out", or "show the flow" of architecture, database schemas, code structure, or user/app flows.Votes: 0GitHub stars: 4
- ImpeccableUse when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a frontend interface. Covers websites, landing pages, dashboards, product UI, app shells, components, forms, settings, onboarding, and empty statesVotes: 0GitHub stars: 4
- Hunt Race ConditionHunting playbook for race-condition / TOCTOU vulnerabilities — concurrent-request abuse, HTTP/2 single-packet attacks, double-redeem / double-spend, MFA-OTP & email-verify races, rate-limit bypass. Use when hunting races or TOCTOU bugs.Votes: 0GitHub stars: 4
- Grill MeInterview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".Votes: 0GitHub stars: 4
- Fullstack Delivery LoopContinuous fullstack delivery loop — cycles a combined frontend+backend team through test → diagnose → fix → review → secure → re-test, building both layers together in cross-side vertical-slice waves until every E2E/suite, code-quality, visual-fidelity, and security gate is clean. Use to develop, fix, harden, or finish a feature that spans the API and the UI in one coordinated loop, instead of running the frontend and backend loops back-to-back.Votes: 0GitHub stars: 4
- Frontend FundamentalsFront-end system-design reference — box model, rendering/reflow, DOM & Web APIs, virtualisation, state design, network transports, web performance.Votes: 0GitHub stars: 4
- Frontend Delivery LoopContinuous frontend delivery loop — cycles subagents through test → diagnose → fix → review → re-test until E2E and review are clean. Use to develop, fix, harden, or finish a frontend feature/epic verified by tests.Votes: 0GitHub stars: 4
- Figma Code ConnectCreate or update Figma Code Connect template files (.figma.ts/.figma.js) that map Figma components to code. Use for Code Connect, Figma component mapping, design-to-code.Votes: 0GitHub stars: 4
- Fastify Best PracticesDevelop, configure, and debug Fastify (Node.js/TypeScript) servers and REST APIs — routes, plugins, JSON Schema validation, hooks, auth, serialization, performance, deployment. Triggers: Fastify, server.ts, app.ts, fastify.config.Votes: 0GitHub stars: 4
- DiagnoseDisciplined diagnosis loop for hard bugs and performance regressions — reproduce → hypothesise → instrument → fix → regression-test. Use when asked to diagnose/debug, something is broken or failing, or a perf regression is reported.Votes: 0GitHub stars: 4