639e107442
Replace the static-threshold admissibility gate with a ranked-with-
margin check that is scale-invariant under blade-norm variation.
Phase 4 characterization established no single global threshold
separates the v2 mechanism-isolation cases (blade norms vary ~10x);
margins between top and second-ranked candidates do, because they
scale with the blade norm and carry the relative ordering the
geometry actually delivers.
New primitives in generate/admissibility.py:
RankedCandidate — (index, word, score)
MarginVerdict — admit/reject + top + margin + full ranking
rank_candidates_by_blade — sort admissible set by cga_inner desc,
strict > tie-break by ascending vocab index
check_margin — admit top iff score>0 AND margin>=delta
Selection semantics in margin mode are blade-rank-driven: the top-
ranked admissible candidate IS the admitted destination. Differs
from threshold mode (field-driven _nearest_next then per-candidate
gate). Both modes coexist; threshold is the default and ADR-0024
acceptance evidence is preserved byte-for-byte.
Wired through:
core/config.py admissibility_mode="threshold" (default)
admissibility_margin=0.4
chat/runtime.py forwards both fields
generate/stream.py margin_mode_active branch — ranks the
candidate set once per step, admits or
raises InnerLoopExhaustion with the full
ranking in rejected_attempts
Default delta = 0.4 chosen from the v2 case margins:
V2-001: 0.596 V2-002: 0.456 V2-003: 13.27
V2-004: 3.37 V2-005: 12.74
min = 0.456 → 0.4 admits all 5 with headroom; 0.5 would refuse
V2-002. The default is falsifiable: Phase 5 may surface a case
below 0.4, which should be reported as an architectural finding
rather than patched per-case.
Acceptance evidence (tests/test_margin_admissibility.py, 13 passing):
5/5 v2 cases pass in margin mode; forbidden_token in every
case's rejected_attempts ranking
Refusal-on-insufficient-margin: delta=0.9 on V2-001 (margin
0.597) raises InnerLoopExhaustion with full ranking; no silent
boundary fallback
Threshold mode byte-identical with or without margin plumbing
5 reruns produce identical canonical trace steps
Strict > tie-break: equal scores resolve to lower-index winner
deterministically
Invariants preserved:
versor_condition < 1e-6 — rotor V is constructed only for the
admitted candidate; margin mode adds no normalization/repair site
Deterministic replay — strict > tie-break now load-bearing in
rank_candidates_by_blade alongside vocab.nearest
No approximate recall, no cosine similarity, no HNSW/ANN; pure
rank-and-difference on exact cga_inner scores
No new code in field/propagate.py, algebra/versor.py,
vault/store.py, or chat/runtime.respond()
Suite results:
full: 1037 passed, 2 skipped (+13 new margin tests)
core eval cognition: 13/13, 100% intent_accuracy,
100% versor_closure_rate
ADR-0026 documents the contract, the single-delta rationale, the
falsifiability story, and the residual risks. Margin mode is
flag-gated default-off; a future ADR may promote it to default
after Phase 5's diversified families confirm the single delta
holds (or surface the architectural finding if it doesn't).
|
||
|---|---|---|
| .. | ||
| ADR-0001-vocab-layer-invariants.md | ||
| ADR-0002-ingest-layer-design.md | ||
| ADR-0003-coordinate-system-dissolution.md | ||
| ADR-0004-rotor-as-operator-not-property.md | ||
| ADR-0005-language-pack-contract.md | ||
| ADR-0006-field-energy-operator.md | ||
| ADR-0007-valence-layer.md | ||
| ADR-0008-allocation-physics.md | ||
| ADR-0009-compositional-physics.md | ||
| ADR-0010-identity-physics.md | ||
| ADR-0011-renderer.md | ||
| ADR-0012-core-ingest-governance-layer.md | ||
| ADR-0013-sensorium-multimodal-protocol.md | ||
| ADR-0014-train-learning-loop.md | ||
| ADR-0015-language-packs-and-holonomy-resonance.md | ||
| ADR-0016-capability-roadmap.md | ||
| ADR-0017-agency-scope.md | ||
| ADR-0018-tool-use-scope.md | ||
| ADR-0019-exact-vault-recall-acceleration.md | ||
| ADR-0020-phase5-rust-parity-sequencing.md | ||
| ADR-0021-epistemic-grade-policy.md | ||
| ADR-0022-forward-semantic-control.md | ||
| ADR-0023-forward-semantic-control-proof.md | ||
| ADR-0024-inner-loop-admissibility.md | ||
| ADR-0025-rotor-frame-admissibility-design-note.md | ||
| ADR-0026-ranked-admissibility-with-margin.md | ||
| README.md | ||
| SESSION-2026-05-12-b.md | ||
| SESSION-2026-05-12-language-packs-addendum.md | ||
| SESSION-2026-05-12.md | ||
| SESSION-2026-05-13.md | ||
Architecture Decision Records
This directory contains the Architecture Decision Records (ADRs) for the CORE project.
ADRs record significant architectural decisions: what was decided, why, what alternatives were considered, and what consequences follow. They are permanent records — superseded ADRs are archived, not deleted.
Index
| ADR | Title | Status |
|---|---|---|
| ADR-0001 | Vocab Layer Invariants | Accepted |
| ADR-0002 | Ingest Layer Design (original) | Archived — superseded by ADR-0012 |
| ADR-0003 | Coordinate System Dissolution | Accepted |
| ADR-0004 | Rotor as Operator, Not Property | Accepted |
| ADR-0005 | Language Pack Contract | Accepted |
| ADR-0006 | Field Energy Operator | Accepted |
| ADR-0007 | Valence Layer | Accepted |
| ADR-0008 | Allocation Physics | Accepted |
| ADR-0009 | Compositional Physics | Accepted |
| ADR-0010 | Identity Physics | Accepted |
| ADR-0011 | Renderer | Accepted |
| ADR-0012 | core_ingest Governance Layer |
Accepted |
| ADR-0013 | sensorium/ Multimodal Protocol Layer |
Accepted |
| ADR-0014 | train/ Learning Loop |
Accepted (Stub) |
Session Logs
Session logs record the decisions and rationale from individual working sessions. They are not ADRs — they are the narrative record that informed the ADRs.
| Date | File |
|---|---|
| 2026-05-12 | SESSION-2026-05-12.md |
| 2026-05-12 (addendum) | SESSION-2026-05-12-b.md |
| 2026-05-12 (language packs) | SESSION-2026-05-12-language-packs-addendum.md |
| 2026-05-13 | SESSION-2026-05-13.md |