---
title: "modelcheck-cli-external-library — Mova code model"
description: "Mova code model of tools/modelcheck/src/main.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/modelcheck/src/main.rs.groupant/external-library.groupant/"
---
Elamur: [Mova](https://md.mova.elamur.ai/free/en/) · [Dictionary](https://md.dictionary.elamur.ai/free/en/) · [Research](https://md.research.elamur.ai/free/en/) · **Groupants**

This page as HTML: <https://groupants.elamur.ai/free/en/mova/tools/modelcheck/src/main.rs.groupant/external-library.groupant/>

# modelcheck-cli-external-library

The groupant beside tools/modelcheck/src/main.rs in the Mova repository: what the code computes, what it never does, how to go back from its outputs, its invariants, cost and checks.

## Facts

- **kind:** groupant_fragment
- **status:** partial
- **source:** [`tools/modelcheck/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/modelcheck/src/main.rs)
- **source SHA-256:** `8a42fa3fc58c88f8…`
- **covers:** External library helpers and their focused inline tests, after main dispatch (bytes 8861–32233)
- **part of:** [modelcheck-cli](https://md.groupants.elamur.ai/free/en/mova/tools/modelcheck/src/main.rs.groupant/)
- **repository folder:** [`tools/modelcheck/src/main.rs.groupant/external-library.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/modelcheck/src/main.rs.groupant/external-library.groupant)
- **repository commit:** `48f2e6f74146`

> **Implementation material.** A Mova code model describes this code at one source revision: partial models, finite checks and their stated scope. It is not a reviewed general exposition, and its labels are shown as written, never raised.

## Components

| component | label | where |
|---|---|---|
| **approximant** | partial | `model.md` |
| **ast** | partial | `../syntax.json` |
| **cost** | source derived | `model.md` |
| **descriptant** | present | `model.md` |
| **invariant** | partial | `model.md` |
| **tests** | finite native evidence | `model.md` |

## Obernants

The typed relations around the forward model: the behaviour complement (what the code never does), the reverse reconstruction (every input compatible with an output) and specialised views.

| id | type | label | where |
|---|---|---|---|
| `generated_survey_provenance_partition` | provenance_observation_partition | partial source derived model | [Source-survey specialization (2026-11-01)](#source-survey-specialization-2026-11-01) |
| `survey_description_scalar_gate` | unicode_scalar_error_partition | finite native evidence | [Source-survey specialization (2026-11-01)](#source-survey-specialization-2026-11-01) |
| `behavior_complement` | behavior_complement | partial source derived model | [behavior_complement](#behavior-complement) |
| `reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) |
| `namespace_admission` | namespace_admission | partial source derived model | [namespace_admission](#namespace-admission) |
| `missing_model_partition` | missing_model_partition | partial source derived model | [missing_model_partition](#missing-model-partition) |

## Model text

The model text names local infrastructure and is not shown here; read it in the [open repository](https://github.com/ElamurAI/mova-free/blob/main/tools/modelcheck/src/main.rs.groupant/external-library.groupant/model.md).