SimReady tier: Foundation Tier-Core (base)

A separately-publishable wheel containing the base SimReady foundation validation content: the profiles, features, requirements, and validator rule checkers that have not (yet) been split into their own tier. It is the base that other tiers build on — e.g. simready-foundation-tier-isaac depends on it.

Distribution: simready-foundation-tier-core. It has no dependency on any other tier, so it installs standalone:

pip install simready.validate
pip install simready-foundation-tier-core

What's in it

The capability groups core/*, hierarchy, visualization/*, physics_bodies/*, nonvisual_sensors/*, packaging/*, and semantic_labels, plus their features and profiles. As content is peeled off into dedicated tiers it leaves this bucket: the isaac_sim/* capabilities and the isaac features/profiles now live in simready-foundation-tier-isaac. Core stays standalone-installable because dependent tiers point at it, never the reverse.

Layout

The tier is an ordinary Python package: its content is committed under simready/foundation/tier_core/ and ships as-is. The only build-time step is generating the requirements-enum module (codegen), which is shared by every tier and lives in ../_tooling.

simready_foundation_tier_core/
├── pyproject.toml          # distribution metadata + both entry points + build config
├── README.md
└── simready/foundation/tier_core/   # committed package (a copy; see note above)
    ├── __init__.py, _plugin.py, _tier.py        # generic scaffolding
    ├── capabilities/                            # all capability groups + import hub
    ├── features/                                # feature JSON
    └── profiles/                                # profile TOML

At build time, codegen adds the one missing piece — requirements/ — into the wheel:

simready/foundation/tier_core/
├── … (the committed files above)
└── requirements/           # generated requirement enums (codegen) — NOT committed

Discovery surfaces

The built wheel advertises itself two ways:

• usd_validation_nvidia → simready.foundation.tier_core:SimReadyPlugin — the asset validator auto-discovers this tier's validators (rules + requirements).
• simready.tier → simready.foundation.tier_core:tier — the SimReady loader discovers this tier's per-layer content sources (requirements module + features/profiles dirs) for its layered registration.

Building

# from the repo root
./repo.sh build_tiers

repo build_tiers writes the wheel into this tier's _build/dist/.