IMAS Standard Names
Grammar library for IMAS Standard Names — a controlled vocabulary for fusion data variables.
This repository owns the grammar: the controlled vocabulary, the parser and renderer, catalog validation, and the documentation site. AI-assistant tools over standard names are served by imas-codex.
Quick Start
pip install imas-standard-names
Python Library
from imas_standard_names import StandardNameIR, compose, parse
from imas_standard_names.repository import StandardNameCatalog
catalog = StandardNameCatalog()
entry = catalog.get("electron_temperature")
print(f"{entry.name}: {entry.unit} — {entry.description}")
# Strict parsing is the validity oracle for both flat names and recursive
# operator expressions.
result = parse("square_of_inverse_of_pressure", strict=True)
assert isinstance(result.ir, StandardNameIR)
assert [operator.op for operator in result.ir.operators] == ["square", "inverse"]
assert compose(result.ir) == "square_of_inverse_of_pressure"
Installation
The tools and catalog are distributed separately:
| Package | Purpose |
|---|---|
imas-standard-names |
Grammar library, parser, validation |
imas-standard-names-catalog |
Standard names catalog (YAML + SQLite) |
Basic Installation
# Tools + catalog (recommended)
pip install imas-standard-names[catalog]
# Tools only
pip install imas-standard-names
Catalog Options
The catalog can be accessed in several ways:
# Option 1: Install catalog package (recommended)
pip install imas-standard-names-catalog
# Option 2: Download pre-built database
wget https://github.com/iterorganization/imas-standard-names-catalog/releases/latest/download/catalog.db
export STANDARD_NAMES_CATALOG_DB=./catalog.db
# Option 3: Clone catalog repository (for development)
git clone https://github.com/iterorganization/imas-standard-names-catalog.git
export STANDARD_NAMES_CATALOG_ROOT=./imas-standard-names-catalog/standard_names
Development Setup
git clone https://github.com/iterorganization/imas-standard-names.git
cd imas-standard-names
uv sync
Architecture
This project uses a two-repository architecture:
- imas-standard-names (this repo): Grammar library, parser, validation, Python API
- imas-standard-names-catalog: YAML source files and pre-built SQLite database
Name generation is handled by imas-codex, which uses ISN's grammar API to mint candidates.
This separation allows independent versioning — catalog content, tooling, and generation logic evolve separately.
Documentation
Full documentation: iterorganization.github.io/IMAS-Standard-Names
- Grammar Reference — naming rules and vocabulary
- Guidelines — patterns and conventions
- Quick Start — getting started
- Architecture — project boundary and API contract
Python API
| Entry point | Purpose |
|---|---|
imas_standard_names.parse(name, strict=True) |
Authoritative validation for flat and recursively ordered grammar |
imas_standard_names.parse(name) |
Diagnostic parse into a lossless StandardNameIR |
imas_standard_names.compose |
Render a StandardNameIR into its canonical spelling |
imas_standard_names.StandardNameIR |
Public recursive representation; operator lists are outermost first |
imas_standard_names.grammar.model.parse_standard_name |
Strict-validating projection into the flat StandardName facade; may reject a valid ordered tree it cannot represent |
imas_standard_names.validate_round_trip |
Diagnostic parse/render drift check; not a validity test |
imas_standard_names.grammar.context.get_grammar_context |
Grammar rules and vocabulary for LLM pipelines |
imas_standard_names.repository.StandardNameCatalog |
Query the catalog |
imas_standard_names.canonical_unit |
Canonical unit authority |
standard-names (CLI) |
Build, search, and serve the catalog site |
validate_catalog (CLI) |
Check catalog integrity and grammar compliance |
Tools that expose these over the Model Context Protocol live in imas-codex.
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for imas-standard-names 0.10.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| imas_standard_names-0.10.0.tar.gz | 1.7 MB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| imas_standard_names-0.10.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 2.1 MB
Release files / imas_standard_names-0.10.0.tar.gz
| Download URL | imas_standard_names-0.10.0.tar.gz |
|---|---|
| Size | 1.7 MB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
01a1de8b8a2d838bbfd5b367fa538eafe220097a94cc03ae8e53d40ba82d94dc
|
|
BLAKE2b-256 checksum How to use checksums |
faa25a5fd105583b1f41c0871a7b8544d010703c3234dbae4a3419f11b52f685
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 18, 2026.
Transparency logRelease files / imas_standard_names-0.10.0-py3-none-any.whl
| Download URL | imas_standard_names-0.10.0-py3-none-any.whl |
|---|---|
| Size | 378.2 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
dbf790a238553709b076e076845c5de83d661d1b76f9add44d9c8ac58f784ebd
|
|
BLAKE2b-256 checksum How to use checksums |
6d29be374a04d4ce4fbba765fc45ae9adbf9849a750c76f42bc6f2ec3ce2792f
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.14
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 18, 2026.
Transparency logSecurity for imas-standard-names 0.10.0
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 2 files in this release have been uploaded with provenance metadata.
Attestation for imas_standard_names-0.10.0.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 18, 2026.
Transparency logA note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
