# tile-cache-builder

Builds the `tile-cache-fixture` Docker volume from the 60 still-image
satellite references in `_docs/00_problem/input_data/` plus the Derkachi
route bbox.

This directory currently contains only the structural placeholder; the
concrete builder (Dockerfile + build script + FAISS HNSW index emitter +
manifest writer + reproducibility assertion) is delivered by **AZ-407**
(Static fixture builders) — see AC-7 ("Fixture builders are reproducible")
in `_docs/02_tasks/todo/AZ-406_test_infrastructure.md`.

AZ-406 commits to the directory's location + name only. Do NOT delete this
README before AZ-407 lands; the `e2e_unit_test_directory_layout` unit test
asserts the placeholder is present.