Desenvolvimento

Test smart contracts comprehensively using Hardhat and Foundry with unit tests, integration tests, and mainnet forking. Use when testing Solidity contracts, setting up blockchain test suites, or validating DeFi protocols.

Nest.js framework expert specializing in module architecture, dependency injection, middleware, guards, interceptors, testing with Jest/Supertest, TypeORM/Mongoose integration, and Passport.js authentication. Use PROACTIVELY for any Nest.js application issues including architecture decisions, testing strategies, performance optimization, or debugging complex dependency injection problems. If a spe

READ-ONLY quick overview of GitHub Elements workflow state. Shows active threads, phase distribution, and workflow health at a glance. USE WHEN: Asking about status, active threads, workflow state, or needing context at session start. DO NOT USE WHEN: Claiming issues (use ghe-claim), posting checkpoints (ghe-checkpoint), transitioning phases (ghe-transition), or needing detailed reports (ghe-repor

コードリファクタリングスキル（DRY原則適用、複雑度削減、パフォーマンス最適化、デグレーション防止）

Vanilla gRPC standards — .proto services, status.Error with standard codes, domain→code mapping, interceptor chain (auth/log/recovery/validation/metrics), client deadlines, context propagation, reflection off in prod, bufconn testing. Language-agnostic; Go examples. Use when designing or reviewing a gRPC service.

Use when configuring MCP (Model Context Protocol) servers in LibreChat, connecting external tools via MCP, setting up mcpServers in librechat.yaml, or debugging MCP tool connections. Also use when asked about extending LibreChat agents with external capabilities through MCP.

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.

A directory path, file path, or natural language scope like "auth layer" or "API routes". Omit to vet the entire project.

Automates Tauri WebView debugging using official plugins (tauri-plugin-log + screenshots) with process verification, automated screenshots, console logs, and state analysis. Use when debugging Tauri apps, investigating WebView issues, analyzing runtime errors, or troubleshooting UI problems.

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Use when implementing any feature or change that touches more than one file. Use when you're about to write a large amount of code at once, or when a task feels too big to land in one step.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification