core/docs/decisions
Shay 8146844d90 feat(adr-0024): Phases 2-5 — corpus eval, v2 adversarial, threshold characterization, ADR-0025 design note
Phase 2 — Corpus observation runner (inner_loop_runner.py):
- Four-condition matrix: boundary_only / null_control / inner_loop_t0 / inner_loop_tpos.
- Added `inner_loop_force_admit` to generate() — exercises the inner-loop
  code path but force-breaks on first candidate.  Eval-only null control:
  isolates rejection as the causal factor for any pass-rate delta.
- Metrics: pass_rate, mean_rejection_count_per_turn,
  non_empty_rejected_attempts_rate, exhaustion_rate (gated at 5%),
  mean_admissibility_checks_per_turn, mean/p95 added_latency_ms,
  trace_hash_stability across 5 reruns per case.
- Finding on v1+dev: causal_attribution_valid=True, code_path_residual=0.0,
  but exhaustion_rate=0.33 at t=0 — chain outer-product blade is
  geometrically blind to the active pack.
- Tests (tests/test_inner_loop_phase2.py, 5 pass): pin
  causal-attribution and live-corpus trace-hash stability invariants.

Phase 3 — Mechanism-isolation v2 corpus (5 cases, v2_runner.py):
- Synthetic adversarial cases with controlled geometry — each case
  specifies seed_token, admissible_tokens, relation_blade_token, and
  admissibility_threshold.  Field state is constructed directly from
  the seed token versor, not via priming.
- For every case: boundary-only selects the forbidden decoy and
  inner-loop selects the expected endpoint with the forbidden token
  appearing in rejected_attempts.
- Result: mechanism_isolated=true on 5/5.  boundary_decoy_rate=1.0,
  rejection_traced_rate=1.0.  Inner-loop rejection is demonstrably
  doing causal semantic work on real packs.
- Tests (tests/test_inner_loop_phase3.py, 8 pass): GATE on
  mechanism_isolated.

Phase 4 — Threshold characterization (threshold_characterization.py):
- Distribution mapping per-case AND globally on v1+dev, v2, combined.
- Per-threshold sweep over [-1.0, -0.5, 0.0, 0.1, 0.25, 0.5, 1.0].
- Finding: per-case geometry separates cleanly (correct_min > incorrect_max
  on every v2 case), BUT no global static threshold passes the
  separation_quality >= 0.8 gate.  Blade norms vary ~10x across cases.
- Static thresholds (global, relation-typed, or constant frame-derived)
  are geometrically insufficient.  Per-case-normalized thresholds
  (e.g. fraction of blade self-score) are the recommended next step.
- v1 chain-token outer-product cases all skipped — the corpus's chain
  tokens (alpha, beta, gamma, delta) are not grounded in the active
  pack.  Load-bearing finding for ADR-0025 region construction.
- Tests (tests/test_inner_loop_phase4.py, 5 pass): pin the finding
  diagnostically (not gated).

Phase 5 — ADR-0025 design note (draft):
- No code changes proposed.  Scopes three architectural questions:
  (1) home (algebra/versor.py vs field/propagate.py vs generate/) —
      preliminary stance: algebra/versor.py.
  (2) threshold scheme (blade-normalized fraction recommended over
      static; learned/adaptive rejected for determinism).
  (3) teaching-loop boundary — Stance A confirmed: rejections are
      runtime hygiene only, no entanglement with teaching/*.
- Decisions to be closed before Draft → Accepted.

Phase 1 acceptance criteria from previous commit (7fccf36) carry
forward: wired, deterministic-when-wired, legacy hash preserved.

Suite: 1014 passed, 0 failed, 2 skipped.
2026-05-17 14:07:50 -07:00
..
ADR-0001-vocab-layer-invariants.md docs: add ADR log and session decision record for 2026-05-12 2026-05-12 20:56:21 -07:00
ADR-0002-ingest-layer-design.md docs: add ADR log and session decision record for 2026-05-12 2026-05-12 20:56:21 -07:00
ADR-0003-coordinate-system-dissolution.md docs: add ADR log and session decision record for 2026-05-12 2026-05-12 20:56:21 -07:00
ADR-0004-rotor-as-operator-not-property.md docs: add ADR log and session decision record for 2026-05-12 2026-05-12 20:56:21 -07:00
ADR-0005-language-pack-contract.md docs(decisions): ADR-0005 language pack contract + session addendum [Batch 1] 2026-05-12 21:16:00 -07:00
ADR-0006-field-energy-operator.md ADR-0006: wire energy recomputation into propagate_step, add test_energy.py, mark ADR Implemented 2026-05-14 12:39:49 -07:00
ADR-0007-valence-layer.md docs: ADR-0006 field energy operator, ADR-0007 valence layer, session addendum 2026-05-12-b 2026-05-12 22:13:29 -07:00
ADR-0008-allocation-physics.md feat(physics): add mind-physics layer — ADR-0008/0009/0010, blueprint, and operator stubs 2026-05-12 23:20:58 -07:00
ADR-0009-compositional-physics.md feat(physics): add mind-physics layer — ADR-0008/0009/0010, blueprint, and operator stubs 2026-05-12 23:20:58 -07:00
ADR-0010-identity-physics.md feat(physics): add mind-physics layer — ADR-0008/0009/0010, blueprint, and operator stubs 2026-05-12 23:20:58 -07:00
ADR-0011-renderer.md chore: fix package name, add core/__init__.py, ADR-0011, session note 2026-05-13 2026-05-13 10:44:42 -07:00
ADR-0012-core-ingest-governance-layer.md docs: add ADR-0012, ADR-0013, ADR-0014, SESSION-2026-05-13 2026-05-13 11:24:10 -07:00
ADR-0013-sensorium-multimodal-protocol.md docs: add ADR-0012, ADR-0013, ADR-0014, SESSION-2026-05-13 2026-05-13 11:24:10 -07:00
ADR-0014-train-learning-loop.md docs: add ADR-0012, ADR-0013, ADR-0014, SESSION-2026-05-13 2026-05-13 11:24:10 -07:00
ADR-0015-language-packs-and-holonomy-resonance.md Document language pack manifold contract 2026-05-13 13:13:06 -07:00
ADR-0016-capability-roadmap.md feat(evals): Phase 0 — benchmark methodology lock-in and eval framework 2026-05-15 22:36:53 -07:00
ADR-0017-agency-scope.md docs(adr): resolve Agency + Tool-use scope decisions (ADR-0017, ADR-0018) 2026-05-16 14:51:42 -07:00
ADR-0018-tool-use-scope.md docs(adr): resolve Agency + Tool-use scope decisions (ADR-0017, ADR-0018) 2026-05-16 14:51:42 -07:00
ADR-0019-exact-vault-recall-acceleration.md feat(phase4): long-context-cost lane + ADR-0019 Stage 1 vault recall vectorisation 2026-05-16 16:39:30 -07:00
ADR-0020-phase5-rust-parity-sequencing.md perf(rust): versor_apply f64 parity port — 29x over Python, bit-identical 2026-05-16 20:43:01 -07:00
ADR-0021-epistemic-grade-policy.md docs(adr): ADR-0021 Epistemic Grade Policy — coherence is the only signal 2026-05-16 17:10:58 -07:00
ADR-0022-forward-semantic-control.md feat(adr-0022): Forward Semantic Control — Accepted 2026-05-17 12:10:20 -07:00
ADR-0023-forward-semantic-control-proof.md feat(adr-0023): Forward Semantic Control proof evidence — Accepted 2026-05-17 12:55:19 -07:00
ADR-0024-inner-loop-admissibility.md feat(adr-0024): inner-loop per-rotor admissibility — Accepted 2026-05-17 13:21:40 -07:00
ADR-0025-rotor-frame-admissibility-design-note.md feat(adr-0024): Phases 2-5 — corpus eval, v2 adversarial, threshold characterization, ADR-0025 design note 2026-05-17 14:07:50 -07:00
README.md docs: add ADRs 0012-0014, session log, update Whitepaper and Yellowpaper for ingest governance and sensorium layers 2026-05-13 11:16:03 -07:00
SESSION-2026-05-12-b.md docs: ADR-0006 field energy operator, ADR-0007 valence layer, session addendum 2026-05-12-b 2026-05-12 22:13:29 -07:00
SESSION-2026-05-12-language-packs-addendum.md docs(decisions): ADR-0005 language pack contract + session addendum [Batch 1] 2026-05-12 21:16:00 -07:00
SESSION-2026-05-12.md docs: add ADR log and session decision record for 2026-05-12 2026-05-12 20:56:21 -07:00
SESSION-2026-05-13.md docs: add ADR-0012, ADR-0013, ADR-0014, SESSION-2026-05-13 2026-05-13 11:24:10 -07:00

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