What problem does it solve? Before modifying or extending an existing feature, developers need to understand how it actually works across the codebase. This Skill performs deep analysis of feature implementations, tracing execution from entry points to data storage so you can make informed changes without breaking existing behavior. ## Core Features & Use Cases - Execution Flow Tracing: Follows call chains from entry points (APIs, UI components, CLI commands) through every abstraction layer to data storage, documenting data transformations at each step. - Architecture Mapping: Identifies design patterns, layer boundaries, component interfaces, and cross-cutting concerns like authentication, logging, and caching. - Dependency Documentation: Catalogs internal and external dependencies, error handling, edge cases, and technical debt with precise file:line references. - Use Case: Before adding a new payment method to a checkout flow, use this Skill to trace the existing payment implementation end-to-end, understand its abstractions, and identify exactly which files need modification. ## Quick Start Ask the AI to explore and explain how a specific feature in your codebase works, including its execution flow, architecture, and key files.
