Elamur Groupantsworld-qa-report
The groupant beside world/src/qa.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 source model | forward |
| ast | partial | ../syntax.json |
| composition | partial source model | composition |
| cost | partial source model | cost |
| descriptant | partial source model | epoch-memory |
| invariant | partial source model | invariant |
| tests | partial source model | checks |
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 |
|---|---|---|---|
world-qa-report-behavior-complement | behavior_complement | partial source model | behavior-complement |
world-qa-report-reverse-reconstruction | reverse_reconstruction | partial source model | reverse-reconstruction |
world-qa-report-projection-boundary | observation_constraint | partial source model | projection-boundary |
Model text
forward
answers_md evaluates rows in supplied order. CONTROL rows add ctrl and ctrl_ok from abstention only, bypassing verdict and ordinary totals. Other rows increment exactly one of hit/miss/none. TSV document IDs are retained but answers_md relies on caller filtering.
invariant
hit+miss+none equals noncontrol input count; ctrl equals control input count; ctrl_ok <= ctrl. Ordinary expected text never changes world state. Supplied-world reporting is assessment, not learning or retention.
cost
Q rows: sum of answer and verdict costs plus O(rendered bytes). Markdown table retains row order; text replacement allocates escaped copies.
composition
Public joins: World::apply on constructed Cmd/Line values -> answer -> verdict; read_questions -> answers_md on supplied frozen expectations. No neural parser, teacher, corpus, CLI persistence or courses executed.
behavior-complement
Domain/universe: terminating calls on consistent supplied worlds and well-formed observations in this scope. Inner absent-behavior relation excludes transitions violating the invariant above. This is a source-derived partial exclusion; unknown paths and malformed world states remain outside it. It is not a complement of merely sampled tests.
reverse-reconstruction
A score tuple admits every row sequence with the same outcome multiset; permutations, IDs and question meanings cannot be recovered. Markdown is not a reversible TSV encoding.
projection-boundary
Native read_questions -> answers_md join yields (1,1,1,1,1) over four frozen rows. main caller filters q.doc == doc before use; this is source-inspected, not CLI execution. IDs/kinds/newlines are not all escaped and cross-document misuse remains a caller precondition.
All three typed entries bind the manifest revision and scope. Operators are invariant exclusion, output preimage and observation constraint respectively; status is partial source modeling with finite native evidence. Reverse relations preserve all described ambiguity; no complete solver or universal inverse is provided.
checks
cargo test -p world --lib qa::wave12_models -- --test-threads=1. See the file evidence.md for actual repeated profiles and compiled controls. Partial syntax projection leaves macro bodies opaque; no semantic AST proof.
epoch-memory
2026-10-30: prospective constant-cost guards and tie comparison predicted rejection without changing valid selection or signatures. Four old-code witnesses failed: empty holder success, malformed interval broadening, empty sort panic and invented earlier narration for a tie. Narrow repairs retain ordinary substring scoring and existing historical explanation behavior. Future epistemic explanations and metadata consistency remain explicit limitations. No optimization or general percentage guarantee is inferred.
This page in Markdown → https://md.groupants.elamur.ai/free/en/mova/world/src/qa.rs.groupant/report.groupant/