core/docs/decisions

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 They are permanent records — superseded ADRs are archived, not deleted.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-0080	Contemplation Loop	Accepted (2026-05-22)
ADR-0091	Domain Pack Contract v1	Accepted (2026-05-22)
ADR-0092	Reviewer Registry v1	Accepted (2026-05-22)
ADR-0093	Domain Pack Contract v1 implementation	Accepted (2026-05-22)
ADR-0094	Proposal Source Provenance	Accepted (2026-05-22)
ADR-0095	Miner-Sourced Teaching Proposals	Accepted (2026-05-22)
ADR-0096	Fabrication-Control Eval Lane	Accepted (2026-05-22)
ADR-0097	Mathematics-Logic Reasoning-Capable Ratification	Accepted (2026-05-22)
ADR-0098	Demo Composition Contract	Accepted (2026-05-22)
ADR-0099	Public Showcase Demo	Accepted (2026-05-22)
ADR-0100	Physics Reasoning-Capable Ratification	Accepted (2026-05-22)
ADR-0101	Systems-Software Reasoning-Capable Ratification	Accepted (2026-05-22)
ADR-0102	Hebrew-Greek Textual-Reasoning Reasoning-Capable Ratification	Accepted (2026-05-22)
ADR-0103	Fluency Lane Attachment for ADR-0102	Accepted (2026-05-22)
ADR-0104	Curriculum-Sourced Teaching Proposals	Accepted (2026-05-22)
ADR-0105	Sealed Holdout Encryption via age	Accepted (2026-05-22)
ADR-0106	Expert-Demo Promotion Contract	Accepted (2026-05-22)
ADR-0107	mathematics_logic Expert-Demo Promotion — Deferred	Accepted (2026-05-22)
ADR-0108	Proposed-ADR Sequencing Post-ADR-0105	Accepted (2026-05-22)
ADR-0109	Lane-Shape-Aware Thresholds (ADR-0106 Amendment)	Accepted (2026-05-22)
ADR-0110	mathematics_logic Expert-Demo Promotion	Accepted (2026-05-22)
ADR-0111	physics Expert-Demo Promotion	Accepted (2026-05-22)
ADR-0112	Runnable Audit-Passed Showcase (originally "Expert-Demo")	Accepted (2026-05-22)
ADR-0113	Rename expert-demo → audit-passed; Reserve expert for Future Capability Tier	Accepted (2026-05-22)
ADR-0114	Expert-Capability Roadmap: GSM8K-Math First	Proposed (2026-05-22)

---

Current frontier

The ADR-0091..0114 slate is fully accepted (0091..0113) plus one proposed-roadmap entry (0114) and mechanically evidenced:

• Domain Pack Contract v1 — ADR-0091
• Reviewer Registry v1 — ADR-0092
• Domain Contract v1 enforcement — ADR-0093
• Proposal Source Provenance — ADR-0094
• Miner-Sourced Teaching Proposals — ADR-0095
• Fabrication-control negative eval lane — ADR-0096
• mathematics_logic reasoning-capable ratification — ADR-0097
• Demo Composition Contract — ADR-0098
• Public Showcase Demo — ADR-0099
• physics reasoning-capable ratification — ADR-0100
• systems_software reasoning-capable ratification — ADR-0101
• hebrew_greek_textual_reasoning multi-pack reasoning-capable ratification — ADR-0102
• Hebrew/Greek fluency lane attachment for ADR-0102 — ADR-0103
• Curriculum-Sourced Teaching Proposals — ADR-0104
• Sealed Holdout Encryption via age — ADR-0105
• Expert-Demo Promotion Contract — ADR-0106
• mathematics_logic Expert-Demo Promotion deferred (first attempt) — ADR-0107
• Proposed-ADR Sequencing — ADR-0108
• Lane-Shape-Aware Thresholds (ADR-0106 amendment) — ADR-0109
• mathematics_logic Expert-Demo Promotion (first successful) — ADR-0110
• physics Expert-Demo Promotion (second successful) — ADR-0111
• Runnable Audit-Passed Showcase (originally "Expert-Demo"; renamed) — ADR-0112 + ADR-0113
• Rename expert-demo → audit-passed; reserve expert namespace — ADR-0113
• Expert-Capability Roadmap (GSM8K-Math first); proposed — ADR-0114

ADR-0080 has also landed: Contemplation Loop Phase 1 adds a read-only frontier-compare miner that emits SPECULATIVE findings only.

Seven lanes are SHA-pinned in scripts/verify_lane_shas.py and gated by the lane-shas GitHub Actions workflow:

• reviewer_registry
• domain_contract_validation
• miner_loop_closure
• curriculum_loop_closure
• fabrication_control_summary
• demo_composition
• public_demo

Proposed-but-unimplemented ADRs

Sequencing per ADR-0108. Listed in priority order:

1. ADR-0084 — Definitional Layer for Lexicon Packs. Optional per-entry definitional block. Deferred — value surfaces during a worked expert promotion that needs definitional depth.
2. ADR-0087 — Rhetorical Style Axis. A third substantive selection axis sibling to anchor-lens. Lowest current priority — no active downstream consumer; register + anchor-lens already demonstrate the orthogonality pattern.

ADR-0080 (Contemplation Loop, Phase 1), ADR-0110 (math audit-passed), and ADR-0111 (physics audit-passed) have all landed — mathematics_logic and physics are at audit_passed=true; the contemplation loop emits read-only SPECULATIVE findings from frontier_compare reports. The remaining two ratified domains (systems_software, hebrew_greek_textual_reasoning) need their own promotion ADRs.

Open candidate directions (no ADR yet)

• Multi-reviewer holdout governance and threshold signing. ADR-0105 seals holdout payloads with a single recipient identity; multi-reviewer governance remains future work.

---

Accepted reasoning-capable domains

Per ADR-0106, audit_passed is contract-gated, not threshold-only: a domain row may carry audit_passed=true only when a reviewer-signed audit_passed_claims entry exists whose evidence-bundle digest reproduces byte-for-byte. ADR-0107 attempted the first worked promotion and the contract refused; ADR-0109 amended the threshold rules; ADR-0110 then successfully promoted mathematics_logic (the first domain at audit_passed=true); ADR-0111 promoted physics second without further contract change, retiring the "math-only" objection. The other two ratified domains remain at reasoning-capable pending their own promotion ADRs.

Domain	Ratification ADR	Pack(s)	Evidence summary
mathematics_logic	ADR-0097 + ADR-0110	en_mathematics_logic_v1	All nine ADR-0091 predicates pass; ledger row is audit-passed (first such promotion, ADR-0110); all three attached lanes meet ADR-0109 shape thresholds on public + holdout.
physics	ADR-0100 + ADR-0111	en_physics_v1	All nine predicates pass; causal/modal operator coverage meets threshold; ledger row is audit-passed (second such promotion, ADR-0111); foundational_physics_ood 117/117 public + 39/39 holdout; shares inference_closure + fabrication_control results with math (distinct digest via domain_id).
systems_software	ADR-0101	en_systems_software_v1	All nine predicates pass; transitive/causal operator coverage meets threshold; ledger row is reasoning-capable; symbolic_logic is the v1 closest-fit eval lane.
hebrew_greek_textual_reasoning	ADR-0102 + ADR-0103	grc_logos_micro_v1, grc_logos_cognition_v1, he_logos_micro_v1, he_core_cognition_v1	First multi-pack ratification; all four packs carry uniform contract fields; causal/contradiction operator coverage meets threshold; ADR-0103 attaches Hebrew and Koine Greek fluency lanes with dev/public/holdout coverage.

---

ADR chain notes

Forward Semantic Control closure — ADR-0022 through ADR-0026

ADR-0022 through ADR-0026 form a single coherent chain that closes forward semantic control as a non-stochastic, replay-deterministic, trace-evidenced mechanism.

1. ADR-0022 establishes AdmissibilityRegion and the contract that a region restricts the admissible token set at generation time.
2. ADR-0023 records proof evidence that the admissibility region is honored at the region-intersection level.
3. ADR-0024 adds destination-side per-step admissibility and honest InnerLoopExhaustion when all admissible candidates are rejected.
4. ADR-0025 adds rotor/frame admissibility when a region carries a frame_versor.
5. ADR-0026 replaces static threshold tuning with ranked admissibility and a scale-invariant margin gate.

Runtime contracts for the chain are pinned in docs/runtime_contracts.md.

Pack-layer chain — ADR-0027 through ADR-0045

ADR-0027 through ADR-0045 establish the identity / safety / ethics pack architecture with deterministic remediation, audit completeness, telemetry, operator readout, audit-tour demo, pack measurements, a worked-example medical ethics pack, and long-context comparison measurements.

Evidence-governed domain chain — ADR-0091 through ADR-0111

ADR-0091 through ADR-0111 establish the current domain-ratification substrate and the audit-passed promotion gate that distinguishes contract-passing from demonstrated:

contract definition (0091)
    ↓
reviewer trust root (0092)
    ↓
validator / ledger enforcement (0093)
    ↓
negative-control fabrication lane (0096)
    ↓
reasoning-capable domain ratification (0097 / 0100 / 0101 / 0102)
    ↓
language-specific fluency lane attachment (0103)
    ↓
audit-passed promotion contract (0106 + 0109 amendment)
    ↓
worked audit-passed promotion (0110 — mathematics_logic, first)
    ↓
worked audit-passed promotion (0111 — physics, second; no contract change)

No domain claim should be treated as mature merely because a pack exists. reasoning-capable means the nine ADR-0091 predicates pass; audit-passed requires a reviewer-signed evidence-bundle digest that reproduces byte-for-byte from on-disk lane results.

The contract has been demonstrated end-to-end: refused once honestly (ADR-0107), amended once cleanly (ADR-0109), succeeded against mathematics_logic (ADR-0110), and succeeded against physics without further contract change (ADR-0111).

---

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