Coding standards, frameworks, refactoring, and code review (18.2K skills)
Advanced Git operations wrapper. Optimizes token usage by guiding complex git workflows into efficient CLI commands.
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Frontend development expert including UI/UX patterns, responsive design, and accessibility
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Elixir and Phoenix expert including OTP, Ecto, and functional programming
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Two-agent cleanup pattern. Implementer works freely, then a dedicated cleanup agent removes unused imports, console.logs, commented-out code, dead code, and formatting issues. Produces a diff of what was cleaned.
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Context-Driven Development methodology - treating project context as managed artifacts alongside code for consistent AI interactions and team alignment.
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Estimate per-turn token attribution across 6 categories in Claude Code sessions to show where context budget is spent
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Detect Claude Code context compaction events in session JSONL logs. Identifies compaction boundaries, measures token delta before/after, reports compaction events with timestamps and token impact.
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Validates commit messages against Conventional Commits specification using programmatic validation. Replaces the git-conventional-commit-messages text file with a tool that provides instant feedback.
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Creates command files for the Claude Code framework. Commands are user-facing shortcuts that delegate to skills.
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Use ast-grep for AST-based code pattern matching.
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Structured debug log analysis for Claude Code sessions — auto-discovers most recent log, runs reducer, extracts error patterns, correlates with full log, produces observability report. Fills 5 identified gaps: hook error body capture, agent identity, file path tracking, stall correlation, success visibility.
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Programmatic code style validation using AST analysis. Complements (not replaces) code-style rules by providing automated checking and instant feedback.
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Safe codebase cleanup: delete AI slop, consolidate duplicates, update imports — always test-verified before committing
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C++ coding standards and best practices.
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This rule enforces the Don't Repeat Yourself principle to avoid code duplication and improve maintainability.
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Requires detailed type annotations for all Python functions, methods, and class members.
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Discover, parse, and call external HTTP APIs at runtime using OpenAPI specs, tool templates, and iterative chaining. Adapted from UTCP (Universal Tool Calling Protocol) patterns for Node.js and Claude Code agents.
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Systematic 4-phase debugging with root cause investigation. Use when fixing bugs to prevent random fixes.
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Database expert including Prisma, Supabase, SQL, and NoSQL patterns
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Database design and optimization specialist. Schema design, query optimization, indexing strategies, data modeling, and migration planning for relational and NoSQL databases.
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API development expert including REST design, OpenAPI, and documentation
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Structural code graph queries via CodeGraphContext MCP (tree-sitter + KuzuDB). Find callers, callees, class hierarchies, dead code, and module dependencies.
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Build apps with the Claude API or Anthropic SDK. TRIGGER when: code imports `anthropic`/`@anthropic-ai/sdk`/`claude_agent_sdk`, or user asks to use Claude API, Anthropic SDKs, or Agent SDK. DO NOT TRIGGER when: code imports `openai`/other AI SDK, general programming, or ML/data-science tasks.
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Code quality expert including clean code, style guides, and refactoring
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