What problem does it solve? Planning a non-trivial feature without understanding existing codebase conventions leads to inconsistent designs, rework, and integration friction. This Skill analyzes your repository's patterns and produces a decisive, file-level implementation blueprint before any code is written. ## Core Features & Use Cases - Codebase Pattern Analysis: Identifies the technology stack, module boundaries, abstraction layers, and similar existing features with file:line references. - Implementation Blueprint: Delivers component designs, an implementation map of files to create or modify, data flow descriptions, and a phased build sequence. - Feature-dev Handoff Contract: When dispatched as a sub-task, follows a structured contract with assignment IDs, requirements-to-components traceability, and test plans tied to build steps. - Use Case: Before building a new billing module, run this Skill to get a concrete architecture decision, the exact files to touch, and a step-by-step build checklist aligned with your project's conventions. ## Quick Start Ask the agent to design the architecture and implementation plan for your new feature based on the existing codebase patterns.