Development skills

Systematic 4-phase debugging with root cause investigation. Use when fixing bugs to prevent random fixes.

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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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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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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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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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Requires detailed type annotations for all Python functions, methods, and class members.

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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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Code quality expert including clean code, style guides, and refactoring

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Search and retrieve academic papers from arXiv.org using WebFetch and Exa. No MCP server required - uses existing tools to access arXiv API directly.

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Force adversarial code review stance that eliminates confirmation bias — reviewer must find issues or re-analyze

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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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Static code analysis and complexity metrics

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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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Master binary analysis patterns including disassembly, decompilation, control flow analysis, and code pattern recognition. Use when analyzing executables, understanding compiled code, or performing static analysis on binaries.

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API development expert including REST design, OpenAPI, and documentation

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Semantic code search using Phase 1 vector embeddings and Phase 2 hybrid search.

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Specifies the preferred syntax for asynchronous operations using async/await and onMount for component initialization. This results in cleaner and more readable asynchronous code.

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Interact with your Public.com brokerage account using the Public.com API. Able to view portfolio, get stock quotes, place trades, and get account updates. To create a Public.com account head to public.com/signup.

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MVVM architecture standards for React/TypeScript frontends with TanStack ecosystem, TailwindCSS, and Shadcn UI.

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Scaffolds React/TypeScript frontend components with MVVM architecture.

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Routes /sdd-run commands to fullstack-typescript skills or system CLI.

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Scaffolds PostgreSQL database component with migrations, seeds, and management scripts.

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Routes core skill requests to fullstack-typescript component standards and lifecycle skills.

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Intent-to-command mappings for fullstack-typescript tech pack features.

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