---
title: "mova-hard-cases-judge — Mova code model"
description: "Mova code model of tools/hard-cases/src/judge.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/hard-cases/src/judge.rs.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/hard-cases/src/judge.rs.groupant/>

# mova-hard-cases-judge

The groupant beside tools/hard-cases/src/judge.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
- **status:** partial source bound model
- **source:** [`tools/hard-cases/src/judge.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/hard-cases/src/judge.rs)
- **source SHA-256:** `e155c052c41de3ac…`
- **repository folder:** [`tools/hard-cases/src/judge.rs.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/hard-cases/src/judge.rs.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 | [Forward approximant](#forward-approximant) |
| **ast** | partial | `syntax.json` |
| **composition** | partial | [Composition](#composition) |
| **cost** | partial | [Cost](#cost) |
| **descriptant** | present | [Descriptant](#descriptant) |
| **invariant** | partial | [Invariant](#invariant) |
| **tests** | finite evidence | [Tests](#tests) |

## 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 |
|---|---|---|---|
| `behavior_complement` | behavior_complement | partial source derived model | [behavior_complement](#behavior-complement) |
| `reverse_reconstruction` | reverse_reconstruction | partial source derived model | [reverse_reconstruction](#reverse-reconstruction) |

## Model text


### Descriptant

Recheck of the list with the deployed gparse (gparse view: learned / reopened), the fixed measurement sample, measurement of a model (pass rate, drafts' rate, silver UAS/LAS on harvested trees, EWT dev LAS) and the watch loop. Source: `tools/hard-cases/src/judge.rs`.

### Forward approximant

judge(tree, stanza) = roots | head_outside | grammar (world::induce::violations>0) | nonprojective | witness (UAS<0.8). sample: once, cases with drafts, measure split first then key, Stanza heads stored. measure(model) = gparse annotate (CPU) on the sample -> pass = no reason; attach() vs harvested trees; gparse eval on EWT dev. recheck = hard_case_list::recheck(gparse, all) with the judge; once per model id. watch: when the deployed weights' id differs from recheck.json -> measure then recheck.

### Invariant

The sample file is never rewritten; a measurement of the same model and sample is byte-identical per case (CPU); recheck never touches the en view; cases without tokens stay unjudged.

### Cost

One gparse CPU pass over the sample/list (~9 s for 131 sentences with EWT dev eval); one Stanza CPU pass per recheck.

### Composition

Uses hard-case-list, policy, harvest annotations, gparse and the Stanza bridge. Parent hard-cases.

### behavior_complement

Does not establish correctness (agreement with Stanza can be shared error); does not touch held-out test sets; does not change models. Evidence status: source-derived model with finite checks, not a proof.

### reverse_reconstruction

Per-case verdicts are kept in measure/runs/<label>-<model>.json; the model is identified by its weights' hash, not recoverable from the verdicts.

### Tests

judge::tests (2026-11-04): green tree; red: two roots, head outside, two subjects, witness disagreement; attachment counts. Live: same model measured twice identical per case; drafts 0/131 (red by construction); an older model 68/131 vs deployed 66/131 shows the instrument moves. Finite fixtures and live samples; not a proof.