49f62d02cb
The SDK's tool, in horizon-shader-api: `horizon-shader new <dir> --template post|sky|material` makes a pack that passes the check, `check <pack>... [--json]` runs the check the game, the launcher and the registry run and prints each stage's cost and the pack's SHA-256 or every problem at its file:line:column, and `pack <dir>` checks then writes the reproducible .hshader. Golden Hour, the example pack, warms the sky around a low sun and adds a soft glow and a colour grade, with five options. docs/shaders.md is the authors' guide. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>