Tier 2 — Interface Surfaces
- **stage-briefs/SB-*.md** - Thirteen stage briefs defining
specifications for each module (SB-001 to SB-013)
- workspace/SPECTRE/ - SPECTRE hardware interface
specifications and probe plans
- workspace/SHACHI-patterns/ - SHACHI asset pipeline
pattern implementations
- workspace/shachi/ - SHACHI library implementation
(assets, material, profiler, sh4math, vmu) shared with core
- src/include/d3tui/ - Public API headers exposed to
consumers
- docs/API.md - Detailed API reference for
developers
- docs/BUILD.md - Build instructions for setting up
the development environment