API Mindset

Every software system has a Conceptual API — the DNA of the system. A simple, human-readable document that captures the essential entities, operations, and side effects that define what the software is. Like biological DNA, it's compact but contains the full blueprint; it replicates across every layer of implementation; and any mutation is deliberate and propagated everywhere.

This skill makes that DNA explicit and uses it as the north star for all development. Once active, it shapes how you think about every feature, every refactor, every new component — always aligned to the system's core capabilities.

Core Principle

Before implementing anything, ask: "Where is the Conceptual API doc for this project?"

• If it exists: read it, align your work to it.
• If it doesn't exist: help the user create it from the existing codebase.