---
title: "translation-flow-main-aggregation — Mova code model"
description: "Mova code model of tools/translate/src/main.rs: components with their labels, obernants and the model text."
url: "https://groupants.elamur.ai/free/en/mova/tools/translate/src/main.rs.groupant/aggregation.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**

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# translation-flow-main-aggregation

The groupant beside tools/translate/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 bound model
- **source:** [`tools/translate/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/translate/src/main.rs)
- **source SHA-256:** `d9940f5fe1dcebf1…`
- **covers:** Agg::add folds one outcome into counts, three residuals and divergence; conditionally merges direct code, stores first4 failures and at most6 examples at verse count1 mod97. (bytes 2193–3045)
- **part of:** [translation-flow-main](https://md.groupants.elamur.ai/free/en/mova/tools/translate/src/main.rs.groupant/)
- **repository folder:** [`tools/translate/src/main.rs.groupant/aggregation.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/translate/src/main.rs.groupant/aggregation.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 | [approximant](#approximant) |
| **ast** | partial | `../syntax.json` |
| **cost** | symbolic source derived | [invariant-and-cost](#invariant-and-cost) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant-and-cost](#invariant-and-cost) |
| **tests** | bounded helpers only | [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) |
| `count_projection` | count_projection | partial source derived model | [count_projection](#count-projection) |
| `sample_phase` | sample_phase | partial source derived model | [sample_phase](#sample-phase) |
| `direct_presence` | direct_presence | partial source derived model | [direct_presence](#direct-presence) |
| `order_sensitivity` | order_sensitivity | partial source derived model | [order_sensitivity](#order-sensitivity) |

## Model text


### descriptant

#### translation-flow-main-aggregation

Agg::add folds one outcome into counts, three residuals and divergence; conditionally merges direct code, stores first4 failures and at most6 examples at verse count1 mod97.

##### Epoch 2026-10-31

Prospective predictions saved before edits in the external wave32 tr_flow receipts. Original production bytes preserved; only appended synthetic test modules added. Selected actual helpers exercised; five compiled behavior controls rejected with exact byte restoration and positive reruns. Source syntax projection is partial, not expanded semantic Rust. Diagnostic reconstruction with residual is not semantic understanding or persistent learning.

Counters representable; finite chrF/residuals. Increments occur before sample predicate. direct_ok counted only when direct Some.

### approximant

#### Forward relation

Agg::add folds one outcome into counts, three residuals and divergence; conditionally merges direct code, stores first4 failures and at most6 examples at verse count1 mod97.

Scope: source-derived conditional transition model at the manifest SHA. Counters representable; finite chrF/residuals. Increments occur before sample predicate. direct_ok counted only when direct Some.

### composition

#### Composition

Scoped children are projections of this file, not independent executables. Main population filtering feeds aggregation; order/text helpers feed measure's exact decoder; many's agreement and storage read the same MTok with intentionally different punctuation treatment, streaming accounting consumes reader costs, clustering consumes normalized PairM. Uncovered branches remain source-derived; finite helper checks do not establish orchestration wiring.

### catalog

## Typed models

All entries bind the source SHA and optional byte range in manifest.json. Observation is one admitted helper call or the explicitly described orchestration trace. Relations are partial source-derived models, not universal proofs. Finite test names and unexecuted effects are in tests.md.

### behavior_complement

Cannot append failure5 or example7; direct None forbids incrementing direct_ok.

Domain and held-fixed assumptions: the invariant/forward documents for this exact scope. Status: partial source-derived relation; complement is a conditional inner exclusion, reverse retains ambiguity, other types specify the named projection/intervention. Oracle: relevant named synthetic tests when listed; otherwise source inspection only.

### reverse_reconstruction

Aggregate preimage is all outcome sequences with these totals and same sampled records. Failure suffixes and unselected outputs arbitrary.

Domain and held-fixed assumptions: the invariant/forward documents for this exact scope. Status: partial source-derived relation; complement is a conditional inner exclusion, reverse retains ambiguity, other types specify the named projection/intervention. Oracle: relevant named synthetic tests when listed; otherwise source inspection only.

### count_projection

Each call adds one verse and tgt.forms.len tokens independent of gate/exact result.

Domain and held-fixed assumptions: the invariant/forward documents for this exact scope. Status: partial source-derived relation; complement is a conditional inner exclusion, reverse retains ambiguity, other types specify the named projection/intervention. Oracle: relevant named synthetic tests when listed; otherwise source inspection only.

### sample_phase

First example at count1, then98; reverse sample positions require total call sequence, not just keys.

Domain and held-fixed assumptions: the invariant/forward documents for this exact scope. Status: partial source-derived relation; complement is a conditional inner exclusion, reverse retains ambiguity, other types specify the named projection/intervention. Oracle: relevant named synthetic tests when listed; otherwise source inspection only.

### direct_presence

Some(empty residual) can increment direct_ok despite no cells, a distinction report's empty-cell display loses.

Domain and held-fixed assumptions: the invariant/forward documents for this exact scope. Status: partial source-derived relation; complement is a conditional inner exclusion, reverse retains ambiguity, other types specify the named projection/intervention. Oracle: relevant named synthetic tests when listed; otherwise source inspection only.

### order_sensitivity

Sum observations stable under exact arithmetic permutation; bounded failure/example order not stable.

Domain and held-fixed assumptions: the invariant/forward documents for this exact scope. Status: partial source-derived relation; complement is a conditional inner exclusion, reverse retains ambiguity, other types specify the named projection/intervention. Oracle: relevant named synthetic tests when listed; otherwise source inspection only.


### tests

#### Evidence and gaps

##### Native checks

- `wave32::aggregate_and_multiset`

These selected names ran twice debug and twice release with exact filtering and one test thread; raw logs and numeric status files are in the external octopus-wave32-tr_flow-2026-10-31 receipt directory. All test bodies inspected before selection. Inline cases use only synthetic in-memory records; the existing blocks filesystem test was not selected. Tests listed at file level do not execute every function or this entire scoped fragment.

##### Controls

Five compiled source-behavior mutants: main gate counter suppressed; many strict chapter comparison relaxed; measure noncanonical-gap recording disabled; pages Meta filter reversed; blocks literal-change predicate reversed. All failed the corresponding assertion and passed after original bytes/hash restoration. Zero assertion-only mutants; zero surviving exploratory mutants.

##### Limitations

CLI argument/effect paths, live corpus/model/annotation/training, full Run::verse, page filesystem and reports remain source-derived only. Source syntax projections generated twice and byte-compared. No corpus-quality, persistent-learning, throughput or universal semantic coverage claim.

### invariant-and-cost

#### Domain, invariant and cost

##### Invariant

Counters representable; finite chrF/residuals. Increments occur before sample predicate. direct_ok counted only when direct Some.

##### Cost

Residual merges and divergence O(cells log existing cells); bounded examples/fail strings cloned only on selected records.

Integer additions/casts require representability; finite floating inputs where comparisons are modeled. These symbolic costs are not measurements of corpus throughput. No useful cheaper executable percentage surrogate established; future supported caps only 1/2/5/10%.