core/chat
Shay 7cc2888ed2 feat(coherence): ADR-0075 — realizer slot-type guard (C1)
C1 coherence floor: a deterministic verifier that runs on every
candidate surface produced by the truth path, before assignment to
ChatResponse.surface.  Rejects illegal articulations and routes them
to a bounded disclosure string — admission control with a
deterministic fallback, not normalization.

Active rules (R1 deferred during ratification — see ADR):
  R2_aux_neg_requires_verb     — "<aux> not <wrong-POS>"  rejected
  R3_be_neg_requires_predicate — "<be>  not <verb>"       rejected

Fail-open on unknown POS, fail-closed on explicit wrong POS.
Cognition eval byte-identical (100/91.7/100/100).

Original bug class — "Light reveals truth, right?" → "Right does not
thought." — now routes to "I do not have a reviewed articulation for
that yet." with grounding_source=none, walk_surface preserving the
rejected candidate, and telemetry carrying R2_aux_neg_requires_verb.

Files:
  generate/realizer_guard.py            NEW — pure verifier
  chat/runtime.py                       hook on stub + main paths
  chat/telemetry.py                     serialize guard fields
  core/physics/identity.py              TurnEvent +2 fields
  evals/realizer_guard/run_holdout.py   NEW — 6-prompt cluster
  tests/test_realizer_guard_*.py        NEW — 46 tests (unit/seam/holdout)
  docs/decisions/ADR-0075-*.md          NEW — ratified

Invariants pinned:
  invariant_realizer_no_illegal_articulation
  invariant_realizer_guard_byte_identity_on_currently_passing_cases

Lanes (excluding 1 pre-existing TestDemoPreambles failure unrelated
to C1, already present at 4426f38):
  smoke 67/67  cognition 120/120(+1s)  teaching 17/17
  packs 6/6   runtime 19/19   algebra 132/132   full 2792/2793
2026-05-19 22:35:09 -07:00
..
__init__.py Add live chat runtime 2026-05-13 20:40:56 -07:00
__main__.py Add live chat runtime 2026-05-13 20:40:56 -07:00
anaphora.py feat(adr-0066): session-thread context + opt-in anaphora prefix (Phase 3.1 + 3.2) 2026-05-18 17:01:34 -07:00
cross_pack_grounding.py feat(register): R1–R4 register pack subsystem — deterministic surface variation 2026-05-19 16:52:36 -07:00
example_surface.py feat(register): R1–R4 register pack subsystem — deterministic surface variation 2026-05-19 16:52:36 -07:00
narrative_surface.py feat(register): R1–R4 register pack subsystem — deterministic surface variation 2026-05-19 16:52:36 -07:00
oov_surface.py feat(adr-0066): NARRATIVE + EXAMPLE intents with multi-clause composers (Phase 3.3 + 3.4) 2026-05-18 17:01:55 -07:00
pack_grounding.py feat(anchor_lens): ADR-0073c — L1.3 first lenses + composer wiring 2026-05-19 20:06:02 -07:00
pack_resolver.py feat(pack-resolver): gloss resolver with lexicon-residency + dual-checksum hardening 2026-05-19 07:24:36 -07:00
pack_surface_candidate.py feat(pack-grounding): selector-ready gloss wiring via PackSurfaceCandidate 2026-05-19 07:26:46 -07:00
partial_surface.py feat(adr-0065): OOV cliff → five-tier honesty gradient (Phase 2.1 + 2.2) 2026-05-18 16:41:45 -07:00
refusal.py feat(adr-0037,adr-0038): per-predicate ethics refusal + hedge injection 2026-05-17 21:23:28 -07:00
register_variation.py feat(register): R5 — operator-visible register telemetry + tour demo 2026-05-19 19:03:07 -07:00
runtime.py feat(coherence): ADR-0075 — realizer slot-type guard (C1) 2026-05-19 22:35:09 -07:00
teaching_grounding.py feat(register): R1–R4 register pack subsystem — deterministic surface variation 2026-05-19 16:52:36 -07:00
telemetry.py feat(coherence): ADR-0075 — realizer slot-type guard (C1) 2026-05-19 22:35:09 -07:00
thread_context.py feat(adr-0066): session-thread context + opt-in anaphora prefix (Phase 3.1 + 3.2) 2026-05-18 17:01:34 -07:00
verdicts.py feat(adr-0039): audit completeness — TurnVerdicts bundle, stub TurnEvent, hedge_injected 2026-05-17 21:32:46 -07:00