world-babi-questions
The groupant beside world/src/babi.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
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 |
| ast | partial | ../syntax.json |
| composition | partial | composition |
| cost | partial | Cost |
| descriptant | present | descriptant |
| invariant | partial | model.md |
| tests | bounded checks partial scope | 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 |
reverse_reconstruction | reverse_reconstruction | partial source derived model | reverse_reconstruction |
query_precedence | query_precedence | partial source derived model | query_precedence |
uncertainty | uncertainty | partial source derived model | uncertainty |
attribute_recency | attribute_recency | partial source derived model | attribute_recency |
resources | resources | partial source derived model | resources |
Model text
descriptant
world-babi-questions
Three-word identity shortcut precedes self rewrite and parser. Extract known longest noun phrases then ordered branches. Where-before uses latest matching history target; what/who scans latest relations before carry/transfers/class inference.
Modeling epoch — 2026-10-31
Read full assigned source before editing; prospective predictions retained in external wave29 receipts. This child binds only its stated half-open UTF-8 byte range; other APIs remain parent scope. Evidence is limited to named bounded fixtures; registration is partial modeling. Production behavior unchanged; only inline synthetic tests added to four assigned sources.
approximant
Forward relation
Three-word identity shortcut precedes self rewrite and parser. Extract known longest noun phrases then ordered branches. Where-before uses latest matching history target; what/who scans latest relations before carry/transfers/class inference.
Domain and resource limits
Finite valid structures and allocation-success executions under the branch conditions in models.md; integer overflow is outside measured fixtures. Exact categorical relations have no supplied percent surrogate. Macro expansion, arbitrary model quality and external effects are not inferred from syntax.
invariant
Invariant
Self identity needs no annotator. At/Not/Either give distinct yes-no uncertainty; count entries 0..6 map none..six, greater counts many.
Cost
Identity O(question bytes), parser delegated; entity matching and reverse scans plus O(HlogH) history sort.
composition
Composition
This scope contributes questions to its parent. Its forward, complement and preimage are restricted to the bound byte interval. The parent syntax projection is referenced once through ../syntax.json; no independent semantic AST is claimed.
models
behavior_complement
Exclude named Who-are-you when me=None, or latest attribute from an empty list. No completeness guarantee for arbitrary questions.
reverse_reconstruction
Self-answer n constrains me but not histories. Where-before x admits histories whose last target has predecessor x. Latest class attribute admits minority votes because recency, not majority, wins.
query_precedence
how+from precedes how+many; relation what/who precedes carry/transfer.
uncertainty
Not target→no, other→maybe; Either member→maybe, nonmember→no; absent→?.
attribute_recency
Most recent peer attribute wins regardless of majority.
resources
General ask uses parser and recursive rewrite; Unicode byte recasing risk unexecuted.
tests
Bounded checks
Named checks associated with this source (not every fragment branch):
- babi::wave29_tests::identity_and_inventory_without_parser
- babi::wave29_tests::graph_and_sentence_boundaries_without_parser
17 unique named tests in total passed twice debug and twice release; sorted named outcomes equal across all four runs. Four compiled controls cover bAbI identity, StepGame tie ordering, parser-command state removal and bench-command CPU selection; each exits101 at a runtime assertion, exact source restored then positive exit0. Other sources have finite adversarial fixtures but no separately compiled mutant.
CLI integration coverage is command construction and temporary cleanup only; legacy school/model/cadence paths are not executed. No speed benchmark, GPU, live teacher, datasets or held-out replay.
Limits:
- Partial syntax projection only; no macro expansion or proof
- No useful percentage surrogate for exact categorical/state/effect semantics; executable approximant unsupported
- No live parser, corpus, gap journal, training or held-out evaluation
- Unicode recasing byte slices, unbounded recursion/overflow not covered
External receipt root: $MOVA_DATA/runs/octopus-wave29-worldeval-2026-10-31.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/world/src/babi.rs.groupant/questions.groupant/