Story-1722 Command Vocabulary — 5 typed intent classes

RFD-AGT-002 D-7. Atlas turns one counsel turn into a typed intent. Every command maps to exactly one of a closed set of 5 intent classes; a phrasing catalog seeds the eval set with success cases, per-op refusal twins, Clarify cases, and flagged-unbuildable utterances.

The 5 intent classes (`command_vocabulary.IntentClass`)

Class	Meaning	Existing wire intent
`navigate`	Move to a declared surface	`navigation.NavigateTo`
`answer`	Grounded reply, no page mutation	answer turn
`reshape_view`	View family: filter / sort / group / count	`SetFilter` / `OpenView` / `Find`
`propose_operation`	Confirm-first create / edit / archive	broker-executed proposal
`clarify`	Ask-which disambiguation — NOT a refusal	clarify turn

The set is closed: adding a class is a deliberate vocabulary change, mirroring the closed capability universe of D-1.

AC1 — Clarify is a class, and disambiguation is not a refusal

Exactly 5 members; CLARIFY is first-class.
Every Clarify phrasing has disposition == "execute" — asking which thing was meant is a normal turn, never a guardrail refusal.
Disposition is modelled separately from intent (execute / refuse / unbuildable) so a Propose command can be refused without changing its class.

AC2 — hi / en / Hinglish map to the same intent

Catalog rows carry a group tying the same request across languages.
Every group is language-consistent (same intent + op).
All 5 classes are reachable in en, hi and hinglish (e.g. take me to my clients / मेरे मुवक्किल दिखाओ / mere clients ka page kholo → navigate).

AC3 — phrasing catalog: refusal twins + unbuildable flags

command_catalog.jsonl holds the example utterances, loaded loudly (a malformed row aborts the load — no silent drop).
Each v1 write op (create, edit, archive) carries both a success phrasing and a per-op refusal twin (silent-write, cross-tenant, bulk).
delete is refusal-only — v1 writes are reversible (RFD §4.3); the model validator rejects a delete success.
Unbuildable utterances are flagged with disposition: "unbuildable" and a reason (canonical example: show matters due in the next 3 days — no backend deadline filter today).

Files

agents/atlas/command_vocabulary.py — IntentClass, CommandPhrasing, loud loader, catalog_invariants().
agents/atlas/command_catalog.jsonl — the phrasing catalog (the eval seed).
agents/atlas/tests/test_command_vocabulary.py — 18 deterministic, model-free tests pinning the 3 ACs.

Verification

ruff check agents/
python scripts/check_brain_egress.py
cd agents/atlas && pytest tests/test_command_vocabulary.py -q → 18 passed