Blockchain

Performs structural code search and refactoring using AST-based patterns. Use when searching for code patterns, refactoring code structurally, finding function calls, class definitions, or when the user mentions "ast-grep", "structural search", "code pattern", or needs to find/replace code that's difficult with regex.

Optimizes token usage and context management for large tasks, cleanup operations, multi-step workflows, code audits, and complex agent operations. Automatically triggers when handling cleanup commands, large codebase analysis, multi-file operations, or tasks requiring multiple subagents. Enforces efficient context usage while maintaining quality results.

Debug CSRF token issues and authentication problems including 403 Forbidden errors, cookie issues, JWT tokens, OAuth flows, and session management. Use when troubleshooting CSRF verification failed, 403 errors on POST requests, login not working, or token refresh issues.

Defines target browser versions for CSS autoprefixing and JavaScript transpilation. Generates .browserslistrc configuration file.

Complete guide for Google Gemini API using the CORRECT current SDK (@google/genai v1.27+, NOT thedeprecated @google/generative-ai). Covers text generation, multimodal inputs (text + images + video +audio + PDFs), function calling, thinking mode, streaming, and system instructions with accurate 2025model information (Gemini 2.5 Pro/Flash/Flash-Lite with 1M input tokens, NOT 2M).Use when: integrating Gemini API, implementing multimodal AI applications, using thinking mode forcomplex reasoning, function calling with parallel execution, streaming responses, deploying toCloudflare Workers, building chat applications, or encountering SDK deprecation warnings, context windowerrors, model not found errors, function calling failures, or multimodal format errors.Keywords: gemini api, @google/genai, gemini-2.5-pro, gemini-2.5-flash, gemini-2.5-flash-lite,multimodal gemini, thinking mode, google ai, genai sdk, function calling gemini, streaming gemini,gemini vision, gemini video, gemini audio, gemini pdf, sys

Use when implementing a standalone Lightning wallet using Cashu mints - provides complete patterns for minting (receiving Lightning payments), melting (sending Lightning payments), mint management, transaction history, and integrating with Lightning addresses and invoices

Interactive UI theme generation when user needs help choosing colors/fonts.Generates cohesive themes based on brand personality using color harmony theory.Use when user asks for theme/color help OR building UI without design:- "What theme should I use?" "Help me pick colors" "Generate theme"- "What colors work well together?" "Suggest color palette"- User uncertain about design direction, needs aesthetic suggestions- Building UI/landing page with no design specs, needs complete themeKeywords: theme, color palette, colors, fonts, brand personality, color harmonyInteractive workflow: Ask personality → Present options → Generate custom theme.References pre-defined themes in .claude/themes/.Do NOT load for: User has clear aesthetic/colors, Figma/design file provided.Integrates with design-fundamentals: Generates themes following design principles.

Generate GraphQL schemas, resolvers, and type definitions. Use when designing GraphQL APIs or documenting GraphQL schemas.

Build n8n nodes using declarative style with JSON-based routing configuration for REST API integrations. Use this skill when implementing standard CRUD operations, configuring requestDefaults, defining routing in operation options, setting up declarative pagination, adding query parameters via routing.send, or processing responses with postReceive. Apply when building REST API nodes with simple request/response patterns and automatic pagination handling.

Define, review, and scaffold Go service directory structures using hexagonal (ports-and-adapters / “jexagonal”) architecture and Go best practices. Use when creating or refactoring Go services, deciding package boundaries, organizing cmd/internal/api/config/deploy/migrations, or choosing layouts for common service types (HTTP REST API, gRPC API, async worker/consumer, scheduled job, CLI, multi-binary repos).

Guide developers on writing BDD specifications using Gherkin syntax, feature files, and step definitions

Security audit methodology, checklists, and tools for identifying vulnerabilities in Solidity smart contracts. Use when reviewing contracts for security issues or performing comprehensive audits.

Symbol-based refactoring via MCP for TypeScript/JavaScript. Use for finding references, renaming symbols, safe refactoring, and type updates. Trigger with "find usages", "rename across codebase", "update type definition", "what calls this", "refactor safely". PROACTIVELY use before any symbol manipulation.

Use when building ongoing loop animations - loading states, ambient motion, background effects that run indefinitely without user fatigue

Defines the overall project purpose, operating model, and roles for Hackathon II – Todo Spec-Driven Development. Always load for any project-related task.

Analyzes distributed systems using Prometheus (PromQL), Loki (LogQL), and Tempo (TraceQL). Constructs efficient queries for metrics, logs, and traces. Interprets results with token-efficient structured output. Use when debugging performance issues, investigating errors, analyzing latency, or correlating observability signals across metrics, logs, and traces.

Define comprehensive testing strategies, write tests with proper naming conventions, organize tests by type, and implement mocking strategies. Use when creating tests, refactoring test suites, or improving test coverage.

Use Lockplane for safe database schema management - define schemas in .lp.sql files, validate, and apply with shadow DB testing

Master metrics definition, KPI tracking, dashboarding, A/B testing, and data-driven decision making. Use data to guide product decisions.

Enterprise TypeScript with strict typing and modern ecosystem TypeScript 5.9.3, Next.js 16, Turbopack, React 19, tRPC, Zod for type-safe schemas; activates for full-stack development, API contract definition, type safety enforcement, and framework-agnostic TypeScript patterns.