Replaces the flat "I don't know — insufficient grounding" disclosure
with a deterministic gradient that names specific vocabulary gaps
and gives operators concrete next steps.
P2.1 — OOV "teach me" surface (chat/oov_surface.py).
When the intent classifier extracts a clean subject lemma but that
lemma is not resident in any mounted lexicon pack, the runtime now
emits a deterministic learning-invitation surface tagged
``grounding_source="oov"`` instead of the universal disclosure.
Surface format (fixed template):
"I haven't learned '{token}' yet (intent: {intent}).
Mounted lexicon packs: {pack_list}.
Teach me via a reviewed PackMutationProposal."
The OOV token passes through ``core._safe_display.safe_display``
before persistence — user-input sanitization at the trust boundary.
No vocabulary is invented; no domain is inferred. Honours the
ADR-0027 proposal-only invariant: the surface invites a reviewed
pack mutation, never silently mutates any pack.
Refactored ``_maybe_pack_grounded_surface`` so every existing
intent branch (COMPARISON / CAUSE / VERIFICATION / CORRECTION /
PROCEDURE / DEFINITION+RECALL) falls through on a None composer
result instead of early-returning. The OOV invitation is the
deterministic fall-through for any clean-subject prompt whose
subject doesn't resolve.
P2.2 — Partial-grounding tier (chat/partial_surface.py).
When exactly one of two COMPARISON lemmas resolves, the runtime
emits a hedged surface that grounds the known side verbatim and
disclaims the OOV side explicitly:
"Whatever '{oov}' is, I can ground '{known}' — pack-grounded
({pack_id}): {d1}; {d2}. I cannot ground the comparison
without learning '{oov}' — teach me via a reviewed
PackMutationProposal."
Tagged ``grounding_source="partial"``. Falls through to OOV
invitation when both lemmas are OOV, and to full pack-grounded
COMPARISON when both resolve — partial is the middle tier in the
five-tier gradient.
Also normalises trailing sentence punctuation on
intent.secondary_subject at the COMPARISON boundary so prompts
like "Compare A and B." (with the period) still resolve B
correctly.
Five-tier gradient (vault → teaching → pack → partial → oov → none).
Test debt retired: four pre-existing tests asserted "OOV → universal
disclosure", which is exactly the contract P2.1/P2.2 inverted.
Rewritten to the new contract. Plus test_procedure_surface.py
gained a test for the OOV gradient on procedure intents.
Verification:
tests/test_oov_surface.py 22 passed
tests/test_partial_surface.py 16 passed
Cognition eval byte-identical:
public 100% / 100% / 91.7% / 100%
holdout 100% / 100% / 83.3% / 100%
Curated lanes all green.
Pre-ADR-0061 every "How do I X?" question fell through to the
universal disclosure even when X was a pack-resident lemma. The
teaching corpus carries CAUSE/VERIFICATION chains only — procedural
knowledge is fundamentally different in kind from propositional
claims and deserves its own ratification path (deliberately out of
scope; a future parallel `procedure_chains_v1.jsonl` schema is
discussed in the ADR's non-goals).
ADR-0061 adds the honest cold-start fallback: ground the topic in
pack semantic_domains and note explicitly that ratified step-by-step
guidance does not exist yet.
Surface format:
"procedure-grounded ({pack_id}): {lemma} ({d1}; {d2}).
Step-by-step guidance for {lemma} is not yet ratified
in this session."
Selector — **last** pack-resident lemma in the verb-phrase subject:
"define a concept" → concept (object beats verb)
"verify a claim" → verify (verb wins when object is OOV)
"correct an error" → correct
"learn this" → learn
"do stuff" → None (falls through to universal disclosure)
Stopwords: only `be` and `have` (dialogue fillers). Procedure verbs
are deliberately NOT stopworded so the verb-as-fallback rule fires
when the object is OOV — keeps surface coverage.
Trust-boundary invariants:
- Every visible non-template token is lemma / pack-domain / template.
- Deterministic: same subject_text → same bytes.
- Returns None for fully-unknown utterances → universal disclosure
fires. Never fabricates surface from nothing (ADR-0053 contract).
- "not yet ratified" trust-label preserved.
Cognition lane lift:
public : intent 100% / surface 100% / term 91.7% / versor 100% (unchanged)
holdout : intent 100% / surface 94.7%→100.0% / term 79.2%→83.3% / versor 100%
Two cases fixed:
- procedure_define_010 ("How do I define a concept?") — surface +
term `concept` now captured.
- procedure_verify_034 ("How do I verify a claim?") — surface only
(case has no expected_terms; the verb fallback grounds it).
Combined effect: holdout `surface_groundedness` closes to 100%; 4 of
5 architectural holdout misses now resolved (this ADR + ADR-0060 +
the supersede from epistemology v1). Remaining 2 are UNKNOWN-intent
cases (unknown_spirit_041, unknown_word_018) — out of scope; deserve
their own ADR with distinct selector semantics.
- chat/pack_grounding.py — `_extract_procedure_topic_lemma` helper +
`pack_grounded_procedure_surface` composer.
- chat/runtime.py — import + dispatch branch for `IntentTag.PROCEDURE`.
- tests/test_procedure_surface.py — 15 tests pin: extraction
(last-wins / verb-by-elimination / be+have skipped / None on empty /
strips punctuation / case-insensitive); surface (contains lemma /
contains domains / pack_id / "not yet ratified" label / None for
no-pack-lemma / deterministic); end-to-end through ChatRuntime.
Lanes (regression): smoke 67 / cognition 121 / teaching 17 /
procedure 15 — all green.
The non-negotiable field invariant (versor_condition < 1e-6) is
unaffected: this ADR changes surface composition only.
Shay