Step 4 of the board build (docs/plans/15-board-surface.md). Naming a task
instead of its position reached nothing: "закрой задачу купить молоко" routed
act, found no allowlisted fn, and the gate asked "Что сделать?". The position
path already worked through resolveCandidate, but only in the two turns after
she read the list out.
TaskStatusGrammar is the same shape TaskCaptureGrammar uses — matches broadly,
decides in Build, no eighth intent — and fills the fn slot with task_status,
which is neither a Hexis capability nor a Praxis one. Three conditions, all
required: the board noun, so no ordinary sentence claims a turn; exactly one
status class, since "готово, убери" names two and asking beats picking; and a
status word matched as an imperative exactly or a stative by lemma. So a bare
"готово" and a bare "закрой" are not this rule's, and the second belongs to
Praxis, which claims it already.
Two lexicon sets rather than one with a value. The store records which of the
two transitions happened and /tasks shows it: work he chose to stop is not work
he did.
Measured on the fixture, two new cases (ru-act-020, ru-act-021). Classifier +
ONNX 62/89 (69.7%) → 64/91 (70.3%); cascade+llm 67/89 (75.3%) → 69/91 (75.8%,
80.2% intent-only) at p50 1.225s. Both new cases claimed at stage 0, no case
regressed, clarify counts unchanged at 3 false / 1 missed.
The task's own warning stands: every such grammar runs its parser ahead of the
resident model on every turn, so this is the last one that is free.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SoL7EBdYC5Mhz3DJd49GJy
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