Menu
Use this skill when implementing or verifying the USDA text-format substrate.
The review-first prompt is selected by default. You can switch to a direct command or download a local copy.
Read SKILL.md and any companion files shown by SkillsMP before deciding whether to install.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
A direct command skips the review prompt. Inspect the source before running it.
npx skills add https://github.com/NVIDIA-Omniverse/omniverse-labs --skill usda-lexical-formatThe command stays on one line. Scroll horizontally to inspect it before copying.
Prefer a local copy? Download the files currently available to SkillsMP.
Use when setting up a fresh clone of this repo to run OVRTX Dev Variant Presenter (also called the "variant studio" in the walkthrough video and earlier releases) — no .venv yet, ovrtx/ovstage/ovstream not installed, ModuleNotFoundError on ovrtx/ovstage/ovstream, or "how do I install / get this running". RTX + uv; validated on Windows.
Use when asked to start, run, launch, restart, or bring up the OVRTX Dev Variant Presenter server, stream, or viewport in this repo — also called the "variant studio" in the walkthrough video and earlier releases — or after the stream / GPU / server was lost and needs recovering. RTX required; validated on Windows.
Build a browser-based, RTX-streamed app for exploring and rendering USD VARIANT PERMUTATIONS — a live ovstream/WebRTC viewport plus instant variant switching, cameras, a turntable rig, grid/batch stills, a multi-track timeline, projects, post, and remote-stage mirroring. Use when asked to build a "variant presenter / configurator" — or a "variant studio", the name used in the walkthrough video and earlier releases — a permutation render tool, or to add variant/timeline/batch features on top of an Omniverse realtime viewer.
Based on SOC occupation classification
Showing SKILL.md
| name | usda-lexical-format |
| description | Use this skill when implementing or verifying the USDA text-format substrate. |
| metadata | {"author":"NVIDIA"} |
Use this skill when implementing or verifying the USDA text-format substrate.
specification/file_formats/README.md section TextPinned tag / commit: v1.0.1
#usda layer header parsinginf, -inf, and nanThis skill owns contracts/capabilities/usda-lexical-format.json and provides
the usda_lexical_format capability consumed by USDA value and spec parsing.
It consumes the identifier_scanner capability from
usd-identifiers-and-names for identifier validity; it should not maintain an
independent UTF-8 or XID policy.
The lexer/parser substrate should preserve enough location information to emit line/column diagnostics, but exact diagnostic wording is controlled by goldens.
The substrate may be a lexer, parser-combinator layer, or direct recursive descent helpers. The contract is behavioral, not architectural.
Defer identifier UTF-8/XID scanning to usd-identifiers-and-names.
Defer path grammar after stripping angle brackets to usd-paths.
Defer value typing/coercion to usda-value-parser.
Do not map syntax to document-model fields here; that belongs to
usda-spec-parser.