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Patrick Buckley
d40c4c85ee
The IGM seam realized: world packs are now a first-class authoring target
for models and humans, with a validate loop and a loader hardened for
routinely-untrusted generated content.
- understone newpack DIR scaffolds a pack (the six content JSONs templated
from the shipped Vale) plus AUTHORING.md — a manual written for a model
to follow cold. Its bands table is RENDERED FROM the loader's own band
constants at scaffold time, so documented limits and enforced limits
cannot drift.
- understone validate DIR loads a pack and prints either a pack report
("This pack is sound. The door stands open.") or the loader's
file/index/field-naming error — the authoring feedback loop.
- Loader hardening: glyphs must be one printable column-safe character and
never the frame box-drawing set or the @/& player markers (map content
cannot impersonate players or forge frame chrome); map dims 8..256;
per-file count caps; display-name length caps. All errors instructive.
- The packaged-world path is single-sourced (understone.world.
PACKAGED_WORLD_DIR) for the server default and the scaffold template.
- README "Authoring worlds" section frames the loop: newpack -> write or
generate -> validate -> serve with UNDERSTONE_WORLD=dir.
Review round: bug finder returned zero findings; quality round fixed the
world.json doc example (it showed a zone fragment where an authoring model
would copy a whole-file shape — now a labeled skeleton), the stale Usage
docstring, and the duplicated packaged-path constant.
Tests 166 -> 184. Scaffold round-trips through load_world by test.