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

# onto-main-startup

The groupant beside onto/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:** [`onto/src/main.rs`](https://github.com/ElamurAI/mova-free/blob/main/onto/src/main.rs)
- **source SHA-256:** `5c2c10af94c4e04b…`
- **covers:** Result composition snapshot→layers→relations→defaults→core gate (bytes 2238–2989)
- **part of:** [onto-main](https://md.groupants.elamur.ai/free/en/mova/onto/src/main.rs.groupant/)
- **repository folder:** [`onto/src/main.rs.groupant/startup.groupant`](https://github.com/ElamurAI/mova-free/tree/main/onto/src/main.rs.groupant/startup.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** | partial | [cost](#cost) |
| **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) |
| `gate_switch` | gate_switch | partial source derived model | [gate_switch](#gate-switch) |
| `loader_order` | loader_order | partial source derived model | [loader_order](#loader-order) |
| `shape_join` | shape_join | partial source derived model | [shape_join](#shape-join) |
| `effect_domain` | effect_domain | partial source derived model | [effect_domain](#effect-domain) |

## Model text


### descriptant

#### onto-main-startup

Result composition snapshot→layers→relations→defaults→core gate

##### Epoch 2026-10-31

Specialized source fragment bytes [2238,2989); shared parent AST. Excludes unrelated parent operations and added test module.

### approximant

#### Scoped forward

Result composition snapshot→layers→relations→defaults→core gate

##### Domain

This byte-scoped operator uses the parent valid-state domain plus the following local restrictions:

Only exact ONTO_CORE_GATE=off allows conflicts with warning

Layer names must exist before relation/default parsing

store shape checks precede Kb construction, not semantic DAG checks

Reads real resources in production; startup unexecuted by selected helpers

No executable percentage surrogate established.

### invariant

#### Local observations

Snapshot error excludes seed loads; core contradiction excludes Ok unless switch off

Only exact ONTO_CORE_GATE=off allows conflicts with warning

Layer names must exist before relation/default parsing

store shape checks precede Kb construction, not semantic DAG checks

Reads real resources in production; startup unexecuted by selected helpers

### cost

#### Scoped cost

Reads whole snapshot plus three TSV files; decode/check cost O(snapshot bytes+references), seed load repeatedly traverses graph, then core::check. Errors terminate later stages; all effects here are reads and optional stderr warning, but file sizes are not capped.

Symbolic accounting; no timing claim or whole-system speed bound.

### composition

#### Parent join

startup supplies the parent relation: Result composition snapshot→layers→relations→defaults→core gate

Output compatibility is conditional on the local domain and earlier-branch exclusions. Other parent branches are outside this fragment.

### models

### behavior_complement

Snapshot error excludes seed loads; core contradiction excludes Ok unless switch off

### reverse_reconstruction

Successful Kb compatible with all resource paths containing same snapshot/seeds; environment lost

### gate_switch

Only exact ONTO_CORE_GATE=off allows conflicts with warning

### loader_order

Layer names must exist before relation/default parsing

### shape_join

store shape checks precede Kb construction, not semantic DAG checks

### effect_domain

Reads real resources in production; startup unexecuted by selected helpers


### tests

#### Evidence

Parent tests.md identifies selected actual-code checks. Fragment is a source-scoped partial model; parent finite fixtures do not establish exhaustive branch coverage or every local equation.