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

The groupant beside tools/cycle/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/cycle/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/cycle/src/main.rs)
- **source SHA-256:** `50b547fdb98931f0…`
- **covers:** Map id to last block's ordinary-word form/UPOS/head/relation; intersect final ids with draft, skip unequal form arrays, count changes, rank descending count then lexical, truncate examples/top. (bytes 29685–32659)
- **part of:** [cycle-main](https://md.groupants.elamur.ai/free/en/mova/tools/cycle/src/main.rs.groupant/)
- **repository folder:** [`tools/cycle/src/main.rs.groupant/changes.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/cycle/src/main.rs.groupant/changes.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 | [approximant](#approximant) |
| **ast** | partial | `../syntax.json` |
| **cost** | partial | [invariant-and-cost](#invariant-and-cost) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant-and-cost](#invariant-and-cost) |
| **tests** | bounded or representation | [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) |
| `coordinate_filter` | coordinate_filter | partial source derived model | [coordinate_filter](#coordinate-filter) |
| `ranking_ties` | ranking_ties | partial source derived model | [ranking_ties](#ranking-ties) |
| `rate_zero` | rate_zero | partial source derived model | [rate_zero](#rate-zero) |
| `top_projection` | top_projection | partial source derived model | [top_projection](#top-projection) |

## Model text


### descriptant

#### cycle-main-changes

##### Epoch 2026-10-31

Prospective inspection identified this relation before additions: Map id to last block's ordinary-word form/UPOS/head/relation; intersect final ids with draft, skip unequal form arrays, count changes, rank descending count then lexical, truncate examples/top.

The production implementation is unchanged; only selected inline tests are appended. Source-bound syntax is generated twice and compared. Native checks exercise bounded helpers; entry orchestration, teacher calls, models and corpora remain source-derived. Partial syntax is not semantic proof. Preserve failure prefixes and ambiguity when refining this model.

### approximant

#### Forward relation

Map id to last block's ordinary-word form/UPOS/head/relation; intersect final ids with draft, skip unequal form arrays, count changes, rank descending count then lexical, truncate examples/top.

##### Composition

This fragment isolates the stated helper relation; parent composition retains surrounding effects and failures.

### catalog

## Typed observations: cycle-main-changes

Subject: tools/cycle/src/main.rs, SHA-256 c901ffdda1a67fa69ed553c5d0c8e7e83d1aa0c23ce8a7bc74d53f30e5c5b108. Domain: bounded source inputs, declared filesystem/environment state and normal allocations. Each view is a partial source-derived relation, not a universal proof. Observation is one helper call or the explicitly described trace. Checks are in tests.md; unexecuted effects remain gaps.

### behavior_complement

Token mismatch contributes skipped but not words/counts. Final-only ids contribute neither compared nor skipped.

Scope: the bound source interval and stated assumptions. Evidence: source inspection plus the checks explicitly named in tests.md; no finite check establishes all inputs.

### reverse_reconstruction

Same report admits arbitrary unchanged features, unshared ids, mismatched sentences and suppressed categories. Exact original trees not recoverable.

Scope: the bound source interval and stated assumptions. Evidence: source inspection plus the checks explicitly named in tests.md; no finite check establishes all inputs.

### coordinate_filter

Rows containing '-' or '.' in id omitted; projected heads remain strings, so numeric-equivalent text can differ.

Scope: the bound source interval and stated assumptions. Evidence: source inspection plus the checks explicitly named in tests.md; no finite check establishes all inputs.

### ranking_ties

Equal category counts sorted lexically; samples at most four distinct forms in sentence-map order.

Scope: the bound source interval and stated assumptions. Evidence: source inspection plus the checks explicitly named in tests.md; no finite check establishes all inputs.

### rate_zero

Zero matched words uses denominator one, yielding zero finite percentages. This does not imply parsing accuracy.

Scope: the bound source interval and stated assumptions. Evidence: source inspection plus the checks explicitly named in tests.md; no finite check establishes all inputs.

### top_projection

top=0 still prints summary/headings but no category rows. Counts are independent of top truncation.

Scope: the bound source interval and stated assumptions. Evidence: source inspection plus the checks explicitly named in tests.md; no finite check establishes all inputs.

### tests

#### Checks and limits

tests::changes_counts_moves exercises relation/UPOS changes and identity; other shapes source-derived.

Exact native outcomes and command metadata are retained in the external wave33 cycle receipt bundle. Selected names run twice in debug and release; syntax is independently regenerated twice. Compiled mutations and source restoration receipts distinguish behavior changes from assertion-only controls. These claims are finalized in evidence.md. No live teacher, real model/corpus, benchmark CLI or lesson-learning CLI is run.

### invariant-and-cost

#### Invariant and cost

Head and relation counted separately; category includes either. Percent denominator max(words,1), so zero produces zero.

O(bytes+W+K log K), maps O(S log S), O(W+K) state.

No executable percentage surrogate is claimed: effects, categorical acceptance and report text have no justified approximate metric here. Future profiles require a useful metric, zero case, reference and evidence at caps 1/2/5/10%.