Promote ADR-0025 from Draft (design note) to Accepted with the
architectural home decision reversed: rotor admissibility lives at
the same generation/propagation seam as ADR-0024's destination
check — in a sibling-but-separate module
`generate/rotor_admissibility.py` — NOT in `algebra/versor.py` or
`field/propagate.py`.
Algebra rejected because admissibility is a pack-semantic test, not
a closure invariant; placing it there couples algebra to pack state
and creates structural temptation toward grade-projection repair
(CLAUDE.md §Normalization Rules forbids). field/propagate rejected
as a forbidden normalization site even when framed as precondition
guard. The clean answer is generation-side, in its own file:
endpoint admissibility (token-side, blade) and rotor admissibility
(rotor-side, frame) compose at the same seam while remaining
conceptually separable.
New module generate/rotor_admissibility.py:
RotorVerdict — admit/reject + score + region_label + reason
check_rotor_admissibility(region, *, field_current, rotor)
-> RotorVerdict
Pure semantic check:
F' = versor_apply(V, F_current)
score = cga_inner(F', region.frame_versor)
admit iff score > 0 (basic positivity in frame half-space)
No state mutation, no closure enforcement (algebra's job).
region.frame_versor is None → trivial admit (back-compat).
RefusalReason extended:
INNER_LOOP_EXHAUSTION — destination-side (ADR-0024 / ADR-0026)
ROTOR_REJECTION — rotor-side (this ADR)
The two reasons let the trace name the axis that ran out without a
parallel exception type. InnerLoopExhaustion(ValueError) hierarchy
unchanged; back-compat preserved.
Wiring in generate/stream.py:
threshold mode per-candidate rotor check after destination admit;
reject → log rotor score, retry next candidate;
exhaustion routes reason to ROTOR_REJECTION iff
any rotor rejection occurred in the step
margin mode rotor check on the top-ranked admissible candidate;
reject → immediate InnerLoopExhaustion(
reason=ROTOR_REJECTION) carrying the destination
ranking + the rejected rotor's score
Phase 4 keeps positivity (score > 0), not margin, on the rotor side.
No cross-case calibration evidence to inform a rotor-margin constant
yet; promoting to ranked-with-margin awaits Phase 5 diversified-
families evidence. Destination-side margin (ADR-0026) is unchanged.
Teaching boundary closed at Stance A — strictly hygiene-only.
Rotor rejections are deterministic geometric outcomes, not reviewed
teaching examples. CLAUDE.md §Teaching Safety forbids parallel
correction paths; entangling rotor rejection with reviewed teaching
would create one. Confirmed in ADR-0025 §"Teaching boundary".
Acceptance evidence (tests/test_rotor_admissibility.py, 11 passing):
No-frame back-compat — frame_versor=None tokens identical to
Phase 3 baseline
Admit when aligned — frame_versor=seed direction admits
seed→destination rotor
Refuse with named axis — orthogonal frame raises
InnerLoopExhaustion(reason=ROTOR_REJECTION); threshold mode
also routes reason correctly
versor_condition < 1e-6 preserved on admitted rotors
Deterministic replay — 5 reruns identical for both admitted and
refused turns
Suite results:
full: 1048 passed, 2 skipped (+11 new rotor tests)
docs/runtime_contracts.md updated with "Rotor admissibility contract"
subsection documenting the seam, the algorithm, and the refusal
taxonomy.
Architectural invariants preserved:
no new code in algebra/versor.py, field/propagate.py, vault/store.py
no approximate recall, no cosine similarity, no HNSW/ANN
no hot-path repair; check is pure typed-verdict
InnerLoopExhaustion(ValueError) hierarchy unchanged
|
||
|---|---|---|
| .github | ||
| algebra | ||
| alignment | ||
| benchmarks | ||
| calibration | ||
| chat | ||
| core | ||
| core-rs | ||
| core_ingest | ||
| docs | ||
| evals | ||
| field | ||
| formation | ||
| generate | ||
| ingest | ||
| language_packs | ||
| morphology | ||
| packs | ||
| persona | ||
| probe | ||
| scripts | ||
| sensorium | ||
| session | ||
| teaching | ||
| tests | ||
| vault | ||
| vocab | ||
| .gitignore | ||
| AGENTS.md | ||
| CLAUDE.md | ||
| pyproject.toml | ||
| README.md | ||
CORE-AI: Versor Engine
A cognitive field system built on Cl(4,1) Conformal Geometric Algebra.
Core invariant: ||F * reverse(F) - 1||_F < 1e-6 at all times.
All state is a versor. All transitions are versor products. Coherence is algebraic by construction — not monitored, not corrected.
The Three Engineering Pillars
Every architectural decision in CORE is measured against three engineering pillars. These are not aspirations — they are hard constraints.
I. Mechanical Sympathy
Software should understand the machine it runs on, not fight it. CORE is designed for the Unified Memory Architecture (UMA) of Apple Silicon: CPU, GPU, and Neural Engine share physical RAM. MLX executes tensor operations on the Neural Engine without PCIe transfer. Rust computes algebra on the CPU with zero heap allocation in the hot path. Python orchestrates the lifecycle. The three-language stratification maps exactly onto three hardware execution domains. Intelligence that ignores its substrate is wasted intelligence.
II. Semantic Rigor
Every term used in this system has a precise, non-negotiable meaning. A versor is a versor — not an approximation of one, not a vector that behaves like one under certain conditions. CGA distance is exact. Vault recall is exact. The vocabulary projection is exact. There are no thresholds tuned for “good enough.” Rigor is not a style; it is what separates an engine from a heuristic.
III. Third Door
When facing a design decision, the world offers two visible options: use what already exists (a library, a pattern, a convention), or cut a corner. CORE takes neither. We find the third door — the path built from first principles that sets the bar ourselves. This is why there is no transformer backbone, no ANN index, no sampling temperature, no gradient descent, and no standard tokenizer. Each of those was a door we were offered and refused. Absolute mastery is the only acceptable standard.
The Truth-Seeking Schema
Co-equal with the algebraic substrate. CORE's epistemic schema is a foundational architectural commitment: every claim that enters the runtime field carries a typed position in a revision graph (SPECULATIVE, COHERENT, CONTESTED, FALSIFIED); coherence — not source authority — is the only admission signal; no claim is ever locked, even when COHERENT; identity cannot be rewritten by content; and exactly one mutation path admits knowledge, enforced by a CI-level architectural-invariant test.
The schema is the structural defense against the failure modes that afflict both fluent LLMs and human reasoning: confabulation, exaggeration, deference to authority, self-protection through erasure, self-promotion through self-citation, and the ossification of mistaken beliefs.
A system that samples cannot have these properties — sampling has no place to attach an epistemic status. CORE has them because every admitted claim carries one and the only path to admission is the review path.
Full architectural commitment, including honestly-published gaps: docs/truth_seeking_schema.md.
Reproducible measurements: evals/CLAIMS.md.
The Three Core Languages
CORE is rooted in three human languages. This is a philosophical and architectural choice, not a localization decision.
| Language | Role |
|---|---|
| English | The default base language of the current model. Any natural language could serve this function in a custom CORE instance — English is the chosen starting point, not a requirement. |
| Hebrew | One of two depth languages. Hebrew carries a density of meaning in its root structures, prefixes, and suffixes that Euclidean string matching cannot capture. The field representation is designed to hold this depth. |
| Koine Greek | One of two depth languages. The language of the New Testament, particularly John’s Gospel — the document that opens with the most precise and consequential statement about language and reality ever written. |
“In the beginning was the Logos, and the Logos was with God, and the Logos was God.” — John 1:1
The choice of Hebrew and Koine Greek is not incidental. John 1:1–2 articulates the Logos in Greek while grounding it in the Hebrew creation account — the universe spoken into existence, word by word. This is not metaphor. It is the claim that language is not a layer on top of reality; language is the structuring principle of reality made manifest. CORE-Logos is built on that claim.
English establishes the operational base. Hebrew and Koine Greek bring the hidden layer of intelligence — the depth of meaning that enriches the field representation in ways that flat embeddings cannot reach. Together, they form the linguistic foundation on which the vocabulary manifold is built.
Quick Start
pip install -e ".[dev]"
pytest tests/test_versor_closure.py # must pass before anything else
pytest tests/
Architecture
raw input -> ingest/gate.py (normalize once)
-> field/propagate.py (versor_apply every step)
-> generate/stream.py (nearest by cga_inner)
-> vault/store.py (store and recall by cga_inner)
-> persona/motor.py (rigid motor, not weight overlay)
The Two Primitives
versor_apply(V, F) = V * F * reverse(V)— the only field transitioncga_inner(X, Y) = -d^2 / 2— the only distance metric
Layers
| Layer | Purpose |
|---|---|
algebra/ |
Cl(4,1) multivector math, versor ops, CGA, holonomy |
ingest/ |
Single injection gate — the only normalization site |
field/ |
FieldState dataclass and propagation loop |
vocab/ |
Surface-token manifold points; indexed access for algebraic transition construction |
vault/ |
Exact CGA inner product memory store |
persona/ |
Persona as CGA motor (screw motion) |
generate/ |
Token streaming loop |
session/ |
Session binding: field + vault + vocab + persona |
Signature
Cl(4,1): (+, +, +, +, -) — conformal model of 3D Euclidean space.
Multivectors: float32 arrays of shape (32,), ordered by grade.
For architectural vision, seven axioms, and formal specification, see docs/Whitepaper.md and docs/Yellowpaper.md.