architecture

# Architecture ## Config Resolution **Step 1 — Determine mode:** 1. Read `.lattice/config.yaml` in repo root 2. Check `architecture_mode` key - If `architecture_mode: custom` → **custom mode** - If absent, or other value → **clean architecture mode** (default) **Step 2 — Load enforce rule:** - **Clean architecture mode** → Read `./references/clean-architecture.md` for enforce instruction (Self-Validation Checklist, Anti-Pattern Scan, Ambiguity Signals, structural principles) - **Custom mode** → Read `./references/custom-architecture.md` for enforce instruction **Step 3 — Load architecture content:** - **Clean architecture mode:** 1. Check `paths.architecture` in `.lattice/config.yaml` for a custom document path. 2. If a document exists at that path → read it and check its YAML frontmatter for `mode`: - **`mode: overlay`** (or no mode field): read `./references/clean-architecture-defaults.md` first, then apply the custom document's sections on top. Sections match by exact heading — a custom section replaces the matching default; new sections append after the defaults. - **`mode: override`**: the custom document takes full precedence. It must be comprehensive. 3. If the path is configured but no document exists at it → tell the user which configured path is missing, then read `./references/clean-architecture-defaults.md`. 4. If there is no configured path → read `./references/clean-architecture-defaults.md`. - **Custom mode:** 1. Check `paths.a...