Coding & Dev Tools

Provides idiomatic C# and .NET patterns covering immutability, dependency injection, async/await, options, result, repository, middleware, and minimal API conventions for building maintainable applications.

Enforces idiomatic Kotlin conventions across null safety, immutability, sealed hierarchies, coroutines, extension functions, DSL builders, and Gradle Kotlin DSL.

Provides production-grade NestJS architecture patterns covering modules, controllers, providers, DTO validation, guards, interceptors, exception filters, configuration, and testing for TypeScript backends.

Audits Claude skills and commands for quality, offering Quick Scan for changed skills and Full Stocktake modes with sequential subagent batch evaluation.

Provides production-oriented patterns for building FastAPI services, covering async endpoints, dependency injection, Pydantic schemas, OpenAPI customization, testing, and security best practices.

Prevents Ethereum hashing bugs in JavaScript and TypeScript by distinguishing Keccak-256 from Node's NIST SHA3-256, with usage examples for ethers, viem, and web3.js.

Secure Quarkus applications with authentication, authorization, input validation, and secrets management best practices.

Provides SwiftUI architecture patterns for state management with @Observable, view composition, navigation, and performance optimization for iOS and macOS apps.

Generates Angular code and provides architectural guidance for projects, components, services, reactivity, forms, dependency injection, routing, accessibility, animations, styling, testing, and CLI tooling.

Optimizes React and Next.js performance with 70+ rules across 8 priority categories, covering waterfalls, bundle size, server-side, client fetching, re-renders, rendering, JS micro-perf, and advanced patterns. Use when writing, reviewing, or refactoring React/Next.js code.

Delegate coding tasks such as feature building, refactoring, and PR reviews to OpenAI's Codex CLI, with support for background execution and parallel worktrees.

Author, lint, diff, and export Google's DESIGN.md design token spec files, including WCAG contrast validation.

Delegate coding tasks to the Claude Code CLI via terminal commands, supporting both one-shot and interactive sessions.

Creates 3Blue1Brown-style animated explainer videos, algorithm visualizations, and math animations using Manim Community Edition.

Runs the open-source LLaVA vision-language model for image understanding, captioning, visual question answering, and multi-turn image conversations, including setup, inference, and training guidance.

Provides guidance on using the QMT quantitative trading terminal, including strategy development, backtesting, and live trading for Chinese securities markets.

Executes Python code iteratively via an MCP bridge to produce verified results for calculations, data analysis, and task decomposition.

Performs GitHub operations from the terminal using the gh CLI, including auth status, repo create/clone/fork, issues, pull requests, releases, and basic repo management.

Create and deploy browser automation functions with the Stagehand CLI, from interactive site exploration to production deployment.

Sends an action in a Kradleverse game using a local script.

Answers questions about the Sui blockchain ecosystem, including concepts, tokenomics, validators, staking, and comparisons with other chains.

Joins a Kradleverse game session and returns a session ID along with game state and available actions.

Compose custom Vue components with Reka UI v2 headless primitives, covering asChild/as composition, controlled state, portals, and Radix Vue migration.

Decomposes an approved specification into dependency-aware waves and atomic executable tasks with exact file scope, test-first actions, verification commands, and an execution gate.

Launches, inspects, and tears down parallel Codex phase fleets in isolated Git worktrees, with explicit approval for bypassing sandbox restrictions.

Delivers a small, bounded code change through inspection, a mini-plan, implementation, testing, review, and adversarial verification. Use for bug fixes, configuration changes, and features expected to touch no more than five files.

Scaffold, install, and compose shadcn-vue components built on Reka UI v2, including Vue variants, form patterns with vee-validate/Zod, and adaptation of existing components.

Implementa e valida dados estruturados schema.org em JSON-LD — Organization, Article, FAQPage, Product, BreadcrumbList. Use quando o usuário disser "schema", "dados estruturados", "JSON-LD", "rich snippet", "FAQ schema", "schema.org".

Audits Vue 3 components for design-system consistency, legacy patterns, and missing states, producing a component log.

Enforces a canonical UI/UX ruleset with 14 sections and 70+ prioritized rules (P0–P3) for implementing, reviewing, or auditing UI components, referencing tokens from a theme reference.

Design precise, production-grade enterprise UI — dashboards, admin panels, SaaS interfaces, and data-heavy applications. Use this skill for professional software interfaces that need Jony Ive-level craft: clean, minimal, functional, with intentional personality. Do NOT use for creative landing pages, marketing sites.

Enforces strict outside-in red-green-refactor TDD with one-failure-per-turn discipline, predicting failures before every run, hardcoding minimum changes, and using triangulation and property-based testing. Triggers on explicit TDD requests and tasks phrased as 'implement', 'add', 'write a function', 'build a feature'.

Reviews a codebase for structural smells and refactors them with provable safety, using micro commits and green-bar discipline.

Performs structured code reviews of git branches, tracking findings in a living document and optionally running deep architectural analysis with subagents.

Apply strict-mode Bash scripting conventions: minimal validation, concise logic, executable scripts, and no unnecessary comments or echoes.

Reviews and repairs risky or unclear code with minimal validated changes, running a fixed-point loop until the diff is clean across two consecutive review cycles.