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

The groupant beside tools/roundtrip/src/mixed/mod.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/roundtrip/src/mixed/mod.rs`](https://github.com/ElamurAI/mova-free/blob/main/tools/roundtrip/src/mixed/mod.rs)
- **source SHA-256:** `c60da75f66a5d4d3…`
- **repository folder:** [`tools/roundtrip/src/mixed/mod.rs.groupant`](https://github.com/ElamurAI/mova-free/tree/main/tools/roundtrip/src/mixed/mod.rs.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` |
| **composition** | partial | [composition](#composition) |
| **cost** | symbolic source derived | [invariant](#invariant) |
| **descriptant** | present | [descriptant](#descriptant) |
| **invariant** | partial | [invariant](#invariant) |
| **tests** | executed bounded checks | [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) |
| `overlap_tie` | overlap_tie | partial source derived model | [overlap_tie](#overlap-tie) |
| `tagged_routes` | tagged_routes | partial source derived model | [tagged_routes](#tagged-routes) |
| `failure_order` | failure_order | partial source derived model | [failure_order](#failure-order) |
| `effect_boundary` | effect_boundary | partial source derived model | [effect_boundary](#effect-boundary) |

## Parts

- [rt-mixed-orchestration-ownership](https://md.groupants.elamur.ai/free/en/mova/tools/roundtrip/src/mixed/mod.rs.groupant/ownership.groupant/)
- [rt-mixed-orchestration-merge](https://md.groupants.elamur.ai/free/en/mova/tools/roundtrip/src/mixed/mod.rs.groupant/merge.groupant/)

## Model text


### descriptant

#### Descriptant

##### Prospective epoch

2026-10-31 source review predicted: owner selects first largest positive byte overlap. Run.merge adds counters/maps and caps failures at4. volume routing branches into English annotation, Hebrew cache/model path, or token-only Text; frames join through link rename/world and inverse rename. Exact checks retain first mismatch. Helpers diff/tally/report join these structures independently. Resource model: Owner O(spans); merge O(entries log keys+example bytes). Whole volume includes external inference, frame/world work and cached parse allocation, not assigned a fictitious constant bound. External prospective.md predates test additions and preserves APIs, effect order, hazards and interaction hypotheses.

##### Observed epoch

Bounded real helper checks in tests.md constrain these models; syntax is a partial lexical projection with no macro expansion, name resolution or proof. Production expressions unchanged; six inline test modules added. Compiled mutants are temporary and exactly restored. Existing malformed-input and nonfinite domains remain explicit, not silently repaired. Parent composes this scope with siblings without adding overlapping costs twice.

Finite synthetic helper evidence only; live corpora, parser/model loading, full orchestration and filesystem failure races excluded.

### approximant

#### Forward relation

owner selects first largest positive byte overlap. Run.merge adds counters/maps and caps failures at4. volume routing branches into English annotation, Hebrew cache/model path, or token-only Text; frames join through link rename/world and inverse rename. Exact checks retain first mismatch. Helpers diff/tally/report join these structures independently.

Domain: Sorted valid byte spans, aligned stream/gold rows, valid item/var indices and caches; bounded sums. End-to-end context includes models and is not executed. parse_cores can call annotate four times with three 600-second sleeps despite prose saying three times at most.

### invariant

#### Invariant and cost

##### Invariant

Sorted valid byte spans, aligned stream/gold rows, valid item/var indices and caches; bounded sums. End-to-end context includes models and is not executed. parse_cores can call annotate four times with three 600-second sleeps despite prose saying three times at most.

##### Cost

Owner O(spans); merge O(entries log keys+example bytes). Whole volume includes external inference, frame/world work and cached parse allocation, not assigned a fictitious constant bound.

##### Limits

Finite synthetic helper evidence only; live corpora, parser/model loading, full orchestration and filesystem failure races excluded. No percentage surrogate is implemented: categorical parsing/effect observations lack an admitted numerical error metric. Any future profile must define its metric/domain and use only1/2/5/10 percent caps.

### composition

#### Local composition

owner selects first largest positive byte overlap. Run.merge adds counters/maps and caps failures at4. volume routing branches into English annotation, Hebrew cache/model path, or token-only Text; frames join through link rename/world and inverse rename. Exact checks retain first mismatch. Helpers diff/tally/report join these structures independently.

Children select narrow source functions with their exact byte intervals. Remaining branches stay in the file model; fragments are not exhaustive partitions. Calls and state joins follow the forward relation, not folder order. Shared scans/helpers are counted once in whole-file costs. Complement of composition is not union of complements; reverse composition retains compatible intermediates and caller premises.

### models

## Typed source-bound relations

Subject: exact source SHA-256 in manifest. Domain and resource premises are in invariant.md. Each model is partial, source-derived, over a single helper invocation or the described finite trace. Complements are proposed inner exclusions under those premises; reverse relations retain all compatible antecedents, with no unique inverse claim. The oracle is the named checks in tests.md; unexecuted cases remain hypotheses. No numerical approximation certificate.

### behavior_complement

Excluded: token-only route establishes parsed semantics or persistent learning; first mismatch cannot be overwritten by later mismatch. owner excludes zero overlap.

### reverse_reconstruction

Run totals admit multiple volume partitions and first-four failure tails. Exact reconstruction needs per-layer residuals and original model/cache context; report numbers cannot recover it.

### overlap_tie

Equal positive overlap keeps first span; overlap is bytes rather than scalar/token counts.

### tagged_routes

En,Heb,Text are alternatives; no pipeline En->Heb->Text exists.

### failure_order

Missing Hebrew cache errors before reconstruction; main writes sampled streams before loading annotator.

### effect_boundary

parse_cores mutates cache before final dump write; write failure is not rollback and real annotation remains unexecuted.

### tests

#### Checks and evidence

Named source/helper checks: mixed::wave32_tests::owner_and_run_merge.

Wave32 on2026-10-31:10 distinct exact tests passed twice debug and twice release, with equal sorted named outcomes. This node claims only its listed subset; empty subset means source review only. Five actual source-behavior mutants compiled, failed assertions, restored exact bytes/hash, and passed focused green reruns. No assertion-only mutants; existing swapped-input controls are separate. Receipt bundle: $MOVA_DATA/runs/octopus-wave32-rt_mixed-2026-10-31 (native-commands.json, source-test-map.json, mutation-results.json, *.status/*.log). No live corpus, teacher, frozen assessment, download or production data used.

Finite synthetic helper evidence only; live corpora, parser/model loading, full orchestration and filesystem failure races excluded.