Claude Skills

Use this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

Pythonic idioms, PEP 8 standards, type hints, and best practices for building robust, efficient, and maintainable Python applications.

Spring Security best practices for authn/authz, validation, CSRF, secrets, headers, rate limiting, and dependency security in Java Spring Boot services.

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

Idiomatic Go patterns, best practices, and conventions for building robust, efficient, and maintainable Go applications.

Instinct-based learning system that observes sessions via hooks, creates atomic instincts with confidence scoring, and evolves them into skills/commands/agents.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

Suggests manual context compaction at logical intervals to preserve context through task phases rather than arbitrary auto-compaction.

Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.

Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.

Use this skill when writing new features, fixing bugs, or refactoring code. Enforces test-driven development with 80%+ coverage including unit, integration, and E2E tests.

JPA/Hibernate patterns for entity design, relationships, query optimization, transactions, auditing, indexing, pagination, and pooling in Spring Boot.

Backend architecture patterns, API design, database optimization, and server-side best practices for Node.js, Express, and Next.js API routes.

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

Pattern for progressively refining context retrieval to solve the subagent context problem

Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.

Verification loop for Spring Boot projects: build, static analysis, tests with coverage, security scans, and diff review before release or PR.

Test-driven development for Spring Boot using JUnit 5, Mockito, MockMvc, Testcontainers, and JaCoCo. Use when adding features, fixing bugs, or refactoring.