Two Tier 4.5 lanes graduate to passing:
refusal_calibration: 0.00 → 1.00 refusal_rate, 0.00 fabrication,
1.00 in_grounding_answer_rate.
- chat/runtime.py: _UNKNOWN_DOMAIN_SURFACE reworded to "I don't know
— insufficient grounding for that yet." (matches lane refusal
markers; was equivalent in spirit but unrecognizable).
- evals/refusal_calibration/runner.py: per-case `prime` field replays
brief priming turns before the probe. Necessary because ChatRuntime
cold-starts with an empty vault; "in-grounding" only counts as
grounded if the session has actually been told something relevant.
Previous 1.00 in_grounding rate was a false positive (gate was
firing on these too, but the surface text didn't match markers).
articulation_of_status: 0.00 → 1.00 speculative_articulation, 0.60
→ 0.00 false_certainty.
- core/cognition/pipeline.py: CognitiveTurnPipeline tracks subjects
of prior SPECULATIVE teaching proposals (parsed-triple subject
plus ≥4-char tokenized split, so prefixed parses like
"correction: wisdom" still match "What is wisdom?"). On a later
turn that references one of those subjects, or that carries a
reflexive query shape ("is your answer confirmed?", "has this
been reviewed?"), prepends "(speculative, not yet reviewed)" to
the surface. Teach turn itself does not self-mark; only
subsequent probes do.
Lane contracts updated to reflect graduation. CLAIMS.md Tier 4.5
rows for both lanes now CLOSED. docs/truth_seeking_schema.md
§Realizer-side surface gaps closed and rewritten.
Verified: smoke (67), cognition (121), runtime (19), teaching (17),
architectural invariants (40) — all green.
Audit of the one-mutation-path invariant (ADR-0021 §3) found three leaks
where pack authority or session-state writes could substitute for coherence
judgment. All three landed fixes or partial closures in this push.
Leaks closed:
- Leak A: pack vocab defaulted to COHERENT — flipped to SPECULATIVE in
language_packs/{compiler,schema}.py; docstring corrected to align with
ADR-0021 (it was rationalizing the leak).
- Leak B: vault.recall was epistemic-blind — VaultStore.store() now stamps
every entry with EpistemicStatus (default SPECULATIVE); recall(min_status=)
filters to admissible-as-evidence tier. All 4 vault-write sites updated.
- Leak C (write-side): generate/proposition.py:198 stored articulated
propositions unmarked — now stamps SPECULATIVE, breaking the
fabrication-feedback loop in principle. Read-side audit of 5 call sites
is the residual.
New architectural invariants (tests/test_architectural_invariants.py):
- INV-21: one-mutation-path allowlist (caught Leak C on first run)
- INV-22: pack lexicon default is SPECULATIVE (Leak A guard)
- INV-23: vault recall epistemic-aware (Leak B guard)
New eval lanes:
- teaching_injection_resistance — ships GREEN at 1.00/1.00/0 (the
structural anti-injection claim is real and measurable)
- refusal_calibration — honest gap: 0% refusal, 0% fabrication
- contradiction_detection — honest gap: 50% flag via versor-delta heuristic,
100% false-positive; motivates the proper coherence-checker
- articulation_of_status — honest gap: 0% speculative articulation, 60%
false certainty; output-side leak surface
New benchmarks:
- benchmarks/footprint.py — total deployed runtime is 7.06 MiB
(109,358x smaller than Llama 3.1 405B, runs offline, no GPU)
- benchmarks/learning_curve.py — monotonic + replay-deterministic curve
per lane
Documentation:
- docs/truth_seeking_schema.md — foundational architectural commitment,
five rules, mapped to human failure modes, leaks published openly
- evals/CLAIMS.md — five-tier public claims doc; Tier 4.5 publishes
known gaps with named fixes; verification contract at top
- README.md — new pillar between algebraic substrate and language pillar
Includes in-flight formation pipeline scaffolding (formation/, tests/formation/,
docs/formation_pipeline_plan.md) and minor CLI/contracts/gitignore edits
that were already in the working tree at session start.
Verification: 798 passed, 2 skipped, 1 deselected (pre-existing pack-count
test drift unrelated to schema changes).
