lat.md Authoring Guide

This skill covers the syntax, structure rules, and conventions for writing lat.md/ files. Load it whenever you need to create or edit sections in the lat.md/ directory.

What belongs in lat.md

lat.md/ files describe what the project does and why — domain concepts, key design decisions, business logic, and test specifications. They do NOT duplicate source code. Think of each section as an anchor that source code references back to.

Good candidates for sections:

• Architecture decisions and their rationale
• Domain concepts and business rules
• API contracts and protocols
• Test specifications (what is tested and why)
• Non-obvious constraints or invariants

Bad candidates:

• Step-by-step code walkthroughs (the code itself is the walkthrough)
• Auto-generated API docs (use tools for that)
• Temporary notes or TODOs