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

# qagen-prompt-rules

The groupant beside qagen/src/prompt.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 bound model
- **source:** [`qagen/src/prompt.rs`](https://github.com/ElamurAI/mova-free/blob/main/qagen/src/prompt.rs)
- **source SHA-256:** `2e30ac525e2bf8cf…`
- **covers:** Select fixed literal RULES for V1 and RULES_V2 for V2; v2 requires an explicit verbatim span while v1 permits its historical wording. (bytes 473–7348)
- **part of:** [qagen-prompt](https://md.groupants.elamur.ai/free/en/mova/qagen/src/prompt.rs.groupant/)
- **repository folder:** [`qagen/src/prompt.rs.groupant/rules.groupant`](https://github.com/ElamurAI/mova-free/tree/main/qagen/src/prompt.rs.groupant/rules.groupant)
- **repository commit:** `855da7bd4a7b`

> **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 source model | [forward](#forward) |
| **ast** | partial | `../syntax.json` |
| **composition** | partial source model | [composition](#composition) |
| **cost** | partial source model | [cost](#cost) |
| **descriptant** | partial source model | [epoch-memory](#epoch-memory) |
| **invariant** | partial source model | [invariant](#invariant) |
| **tests** | partial source model | [checks](#checks) |

## 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 |
|---|---|---|---|
| `qagen-prompt-rules-complement` | behavior_complement | partial source model | [behavior-complement](#behavior-complement) |
| `qagen-prompt-rules-reverse` | reverse_reconstruction | partial source model | [reverse-reconstruction](#reverse-reconstruction) |
| `qagen-prompt-rules-projection` | prompt_coordinate_projection | partial source model | [specialization](#specialization) |

## Model text


### forward
Select fixed literal RULES for V1 and RULES_V2 for V2; v2 requires an explicit verbatim span while v1 permits its historical wording.

### invariant
Original paragraph number is displayed but never replaces batch-local P index. Sentence IDs never replace local sentence coordinates. A predecessor in another document cannot suppress context. i64::MAX has no successor.

### behavior-complement
Output with wrapped successor context suppression, cross-document context suppression or global sent_id as local numeric labels is excluded. No semantic validation or sanitization of supplied textual fields is performed. Universe: supplied finite UTF-8 strings/Para sequences and candidate observable results. These are scoped source-derived exclusions, not merely negative test outcomes.

### reverse-reconstruction
The two distinct rule strings recover V1 or V2 uniquely; unrelated text is outside the image. Operator is the set-valued fiber F^-1(y) = {x in domain | F(x)=y}; no implemented complete inverse solver or unique recovery claim.

### specialization
Context predicate is independently modeled by i128(prev)+1=current and document equality, avoiding overflow in the finite reference. Rules are distinct prefixes; changing only the rule preserves the paragraph body.

### cost
O(1) static-string dispatch; prefix copy costs its fixed length.

### composition
Schema version selects a fixed rules prefix; renderer appends batch-local paragraph and sentence coordinates. Context uses original document identity and paragraph number only for immediate-predecessor adjacency. Child scopes share source identity; inverses must share the same Rule and Para sequence rather than combining unrelated marginal fibers.

### checks
Six new wave17_models tests (two schema, four prompt), including 256 rule bytes and 98 successor cases. See root evidence.md for compiled controls and repeated build-profile outcomes.

### epoch-memory
2026-10-30 prospective review: unchecked predecessor addition could overflow; cross-document comparison already correct. A synthetic MAX to MIN witness panicked before repair. checked_add preserves ordinary adjacency and keeps context at the overflow boundary. Schema literal mapping had no witnessed defect. No API changes.

### limitations
Partial source models, with literal and finite observations; no analytical approximation error or speed claim. Syntax projection is partial, macro bodies opaque. Input text is rendered verbatim, including delimiter-like content; grammar-injective recovery requires trusted delimiter-free fields. Teacher, parser, corpus, database and data acquisition were not executed.