Select, inspect and copy

The catalogue shows the latest release only, release 2.4.0; its number is on every page. Older releases stay as Git tags and release folders under data/atlas-releases. The coverage page counts what each family and template holds, and why an export or a generation setting is absent.

1. Open the catalogue, choose a family (non residential or residential) and a template: each template has a one-line description and a link to its guide. The template's page lists its building types; a folder page lists that template × building type's programs, mixes, construction sets, generation settings, services, systems and water-reporting records.
2. Open a program page. Its facts name the template and building type as the downloads spell them, the folder's construction sets and the program's generation settings. Its sections show the source export under the download's own keys (loads, controls, heat_fractions …), then Filled export, every block the filled export changes, then Release record, the record's fillings with their rules and resolutions and the record values no export carries, then a mix's members, the schedules and the evidence. Every ID links to the object it names.
3. Version. The page without a query shows both exports. ?version=source hides what the filled export changes and the fillings; ?version=filled hides the source blocks the filled export replaces. A program with no filled export says why in its Filled export section, with or without JavaScript.
4. Context. Loads that vary by climate show one column per zone; ?climate=4A dims the others. A construction set page lists its contexts (climate zone, and foundation, location or source reference where the set has them); ?climate=, ?foundation=, ?location= and ?reference= narrow the list. Climate labels are the atlas labels (1A-tropical-semi-conditioned); a zone (1A) selects every label in it.
5. JSON. Each export has Copy and Download buttons and names its release and the SHA-256 of the file Download saves. Both verify the stored document before decompressing it; Download saves its canonical bytes unchanged, Copy an indented rendering. Without JavaScript, Download saves the gzip file itself. The Program JSON contract defines the canonical form.
6. Any ID. The viewer (view/?id=…) opens the page and anchor of any published ID (programs, schedules, resolved schedules, generation configurations), or shows the JSON of an evidence row or a resolution.

Geometry, sizing, zone assignment and stock weights remain the consumer's (assign inputs to geometry).