INV-25 makes the GSM8K lesson structural: no capability claim is valid unless
its gold is computed by a procedure sharing no code with the system under test.
Three meaningfully-failing checks (proven able to fail): 25a oracle imports no
SUT module (AST); 25b every committed deductive gold is reproduced by the
independent oracle AND matched by the engine; 25c an unsound engine disagrees
on committed cases.
SHA-pin the deductive lane (deductive_logic_v1, dev+holdout+external 716/716,
wrong=0, refused=0) via a deterministic --report writer + run_as_module (the
lane dir's local generate.py shadows the package in script mode) + CLAIMS regen.
Fix drift the review surfaced: contract.md + pivot doc claimed an 8,000/7,340
fuzz and an 'external mirror' -> corrected to the real gated 3,000-case fuzz
(2,796 definite) and 'hand-authored, NOT a published-benchmark mirror'; pivot
doc GSM8K holdout 0->5 (all 5 are R1 reconstruction; composer scored 0).
Validated: smoke 78, deductive 23, proof 29, invariants 44, lane-sha+claims 9.
Load-bearing strategic record: what the GSM8K chase got wrong (overfit
50-case ruler hiding a sealed wrong=0 breach), the held-out measurement
that exposed real capability=0% / composer 17% wrong, why GSM8K is the
wrong terrain for a deterministic verifiable engine, and the deductive-
logic path now (Phase 1 done: 500/500 held-out wrong=0, independent-
oracle verified) with phases 2-4 and the anti-recurrence disciplines.
Four genuine build-and-measure attempts on held-out, all falsified:
- composer 87 wrong, narrow reader 61 wrong, strict sum-reader 2 wrong (100%),
candidate-graph 0 admissible. Even 'exactly 2 numbers + total cue' cases are
multi-step in disguise. No sound committing strategy exists in this substrate.
All three GSM8K paths exhausted on the held-out 500:
- candidate-graph (sound filter): 0 admissible candidates built (498/500 build nothing)
- composer (open): 87 wrong
- narrow reader (open): 61 wrong
The sound path is wrong=0 only because it constructs no reading to commit. No sound
lift exists in the current substrate; confirmed empirically, three ways.
Built and measured two committing readers on held-out (not just diagnosed):
- resolve_pooled composer: 2 correct / 87 wrong (17%)
- maximally-narrow forced reader: 0 correct / 61 wrong (100% when it fires)
Shallow committing CANNOT be sound on real GSM8K (measured). The impasse:
- candidate-graph path is SOUND (wrong=0) but FROZEN by ADR-0207 §4, covers 0 real
- composer is OPEN (ADR-0207 §5) but UNSOUND (17% wrong, no separating gate)
ADR-0207's premise (composer is the wrong=0-safe path) is FALSIFIED by held-out data;
'feed the composer' is a path to more confabulation. Needs a follow-up ADR.
The result that should have been visible for weeks. Measured on the new holdout_dev
lane (500 real held-out cases) + sealed test:
- real capability 0% (train_sample's 4 correct generalize to 0/500 held-out)
- resolve_pooled (the composition substrate) commits 17.4% WRONG on held-out
- NO structural gate (step/pool/op) separates its 2 correct from 87 wrong -> the
composer cannot tell right readings from wrong; gating it is overfitting
- the only wrong=0 policy on real GSM8K is refusal (current serving 0/0/500)
Real lift needs a verifiable reading mechanism, not composer tuning. Non-serving (docs).
The FIRST real sealed measurement (operator-decrypted 1,319 held-out GSM8K)
found `0 correct / 5 WRONG` — a wrong=0 breach hidden for weeks because the
working metric was the 50-case train sample the bridges were tuned to. Bisection
isolated it to the product_bridge serving promotion (ADR-0195).
- generate/math_candidate_graph.py: REMOVE both serving promotion bridges
(product_bridge + goal_residual/ADR-0207 §5 step 2). Serving = main-graph-only.
Restores sealed 0/0/1319 (verified by bisect: disabling product_bridge -> 0 wrong).
Production modules remain in generate/derivation/; only serving promotion is
unwired, until a gate is proven wrong=0 on the SEALED set (never the train sample).
- Honest numbers everywhere: train_sample 7/43/0 -> 4/46/0 (the bridges' "correct"
was train-overfit). report.json + coverage probe regenerated. 7 ADR test lanes
de-pinned from the inflated count. corpus: cv-0005 (R4) reverts to refuse; cv-0020
(a "baseline control" that solved ONLY via product_bridge) reclassified.
- docs/claims_ledger.md: dated wrong=0-breach-and-remediation note + the rule:
the train_sample number had ZERO predictive validity for the exam; never the score.
- docs/analysis/gsm8k-lift-program-strategy: the program to actually move the 1,319.
NOTE the exit gate stays `correct>=10 AND wrong==0` — refusing-everything is an
explicit FAIL, not a wrong=0 pass; serving still commits (main graph). Verified:
broad regression 848 passed, smoke 73 passed.
Authority-ratified per the ADR-0207 convention (Accepted (ratified DATE)):
- ADR-0181 (audio), ADR-0197 (vision), ADR-0208 (environmental loop),
ADR-0209 (sensorimotor afferent) -> Accepted (ratified 2026-06-03).
All four are implemented + test-backed (0208/0209 falsifiability deeply
verified in the lookback; 0181/0197 backed by CRDT-merge/compiler/mount/
eval-gate suites, all green in the 182-test sweep).
- ADR-0198 deliberately NOT ratified: partially-implemented spike (Gap A +
fail-closed efferent gate landed; \xc2\xa73 verdict-lowering + motor decoder
deferred behind a dedicated motor governance ADR).
CLAUDE.md Work Sequencing now records the sensorium/modalities arc as a
sanctioned parallel track that does not displace the near-term sequence and
is disjoint from the GSM8K serving path. Markdown only; no test asserts ADR
status or the work-sequencing text.
Wires the R4 goal-residual production to serving via
resolve_promotable_goal_residual (math_candidate_graph.py, mirroring
product_bridge). cv-0005 / train_sample 0037 now solves on serving as
goal - Σprogress = 10 - 3 - 4 = 3. First Phase-5b composition lift on serving.
wrong=0 preserved on every runnable surface:
- train_sample 6/44/0 -> 7/43/0 (0037 added; 6 prior correct intact; wrong=0).
- Fires on 2/455 visible GSM8K cases, both correct, ZERO wrong.
- Gain-goal divergence firewall proves it reads the GOAL, not a possession.
- smoke 73, math+invariants 53, derivation/pool/practice 341, corpus, all green.
Lockstep updates (the ratified metric move, 6/44/0 -> 7/43/0):
- report.json; 7 ADR test lanes that pinned 6/44/0; corpus cv-0005 baseline
fields + snapshot (4/18 -> 5/17) + contract; plan-doc cv-0018 control fix.
⚠ SEALED MEASUREMENT REQUIRED — NOT DONE. The sealed 1,319 (encrypted, not
CI-reproducible) is the real bar (ADR-0207 §6) and was NOT re-measured. The
operator/CI must decrypt+run it and confirm sealed wrong==0; if wrong>0, revert
the resolve_promotable_goal_residual block (isolated). See
docs/handoff/sealed-measurement-obligation-2026-06-04.md.
DefaultEfferentGate is a capability/shape pre-filter only; it does not
lower decoded actions into safety/ethics pack verdicts (ADR-0198 §3 /
§1.2 Gap B). ModalityRegistry.decode/decode_batch now refuse fail-closed
any emission through a gate whose enforces_action_verdicts is False,
unless an explicit allow_unverified_efferent sandbox opt-in is set.
A real motor decoder thus cannot emit through the capability-only gate;
the §3 verdict-lowering gate must be built and installed first. No
production caller of the decode path exists today, so this closes the
latent hazard before a motor decoder makes it load-bearing. Adds two
falsifiable tests (fail-closed refusal; verdict-enforcing gate allowed).
Disjoint from the GSM8K serving path.
ADR-0181/0197/0208/0209 were marked Proposed despite test-backed
afferent implementations merged to main; flip to Accepted with
verifiable Implementation lines (paths + PRs + falsifiable tests).
ADR-0198's 'no implementation' status was stale (Gap A protocol
change + baseline efferent gate landed in #541); correct it and
document the deferred §3 safety/ethics verdict-lowering as an
explicit blocking obligation before any motor decoder mounts.
Three reviewed, non-serving analysis/handoff docs for the COMPOSITION lever.
Read-only; no serving code; train_sample 6/44/0 untouched.
- analysis/wiring-promotion-gate-brief: product_bridge is the only serving
derivation tendril (two-token target whitelist); resolve_pooled refuses all
ten R1/R4/R5/R6 positives and wrong-commits 0016 -> 510. Wiring is trivial;
the gate is the work.
- analysis/composition-wall-execution-plan: per-case stage taxonomy (A/B/C/D)
for all 15 corpus positives, reproduced live; R4-first scope (new
goal-residual production, verified by code-read of accumulate.py, NOT a
target tweak); promotion gate generalizes product_bridge, never disagreement
alone; gates inherit ADR-0207 §6 (corpus + sealed 1,319).
- handoff/stage-c-composition-investigation: dispatch task for the execution
lane to pin the per-case bail for the production-wrong shapes (the real
grouping/op-order wall), read-only, in-tree.
Reading the actual gate logic (product_bridge/pool/verify) corrected §5's
sequencing optimism, before merge:
- The safe wire is already done (product_bridge at :530); its safety is a
two-token target whitelist (money+make/earn, weight+total/move) hardcoded to
0003/0021 — it generalizes nothing.
- Verified live (2026-06-03): the general composer resolve_pooled refuses ALL
ten R1/R4/R5/R6 corpus positives (R1/R4 build zero candidates; R5 only wrong
ones) -> wiring yields +0 correct; and it wrong-commits 0016 -> 510, so wiring
it wholesale is a live wrong=0 regression the disagreement rule does not catch.
So WIRING and COMPOSITION are the same task: composer production per shape, each
behind a structural promotion gate (extract_target + target_units, not
disagreement alone); the wire is the trivial last step. Core ratification
(freeze, design-of-record, gates, sealed-set measurement) unchanged.
Phase 5a (retire the inert GSM8K scoring-path comprehension-reader
dispatch, -1,038 LOC) landed in 3fd3172, an ancestor of HEAD 8327c6b,
but composition-capability-scope.md still listed it as remaining work --
drift that mis-scoped a downstream brief. Re-anchor the canonical doc to
the tree:
- §1: the lifecycle.py GSM8K-scoring dispatch row now reads "retired in
Phase 5a (3fd3172)" instead of "inert ... retirable in 5a".
- §2: Phase 5a marked SHIPPED with a runway-status banner; the §9
completeness-gate precondition marked LANDED (PR #534, e1bcdf6).
- §4: sequencing restructured -- items 0 (§9 precondition), 1 (gating
analysis), 3 (5a) are DONE; the live runway starts at item 2 (the
<=20-case validation sub-corpus), then Phase 5b.
- §9: status banner noting the recommended guard landed (#534); the
"RED on main" statements are the pre-landing measurement, kept for
provenance.
Docs-only. No code/eval/serving change. Baseline re-verified at HEAD:
train_sample 6/44/0 (all 44 refusals at branches_enumerated=0),
completeness-guard suite 21 passed.
Adds the first consumer of CORE's two built epistemic substrates — the
decode-state taxonomy (core/epistemic_state.py) and the risk-reward
reliability gate (core/reliability_gate/, ADR-0175) — beginning to close
the LABEL-ONLY consumption gap they sat behind.
Ships the scaffold only:
- core/response_governance/policy.py — ReachLevel (STRICT < APPROXIMATE <
EXTRAPOLATE < CREATIVE), ReachPolicy, govern_response (STRICT-only stub),
shape_surface (STRICT = identity transform; higher levels real but
unreachable in production), and the 9/5/1 EpistemicState partition.
- chat/runtime.py — cognition-path seam: the response surface now flows
through shape_surface(govern_response(...)). STRICT = identity, so the
path is byte-identical to pre-bridge. reach_level carried on ChatResponse.
- core/physics/identity.py — reach_level on TurnEvent (default "strict").
wrong==0 untouched: select_self_verified is NOT touched (ADR-0206 §5);
reach_level is NOT added to the telemetry JSONL dict, so pinned lane SHAs
stay byte-identical. Widening, SITUATE/FEED-BACK, the math-serving seam,
and the EVIDENCED reconcile are deferred to their own PRs.
Tests (tests/test_response_governance.py): STRICT-only contract over all
states x license x stakes, STRICT identity, live-wiring proof (forces
APPROXIMATE -> policy-sensitive surface), total+disjoint taxonomy
partition. Each fails loudly under the violation it guards.
Phase 2.3: the first inference rule + the wrong=0 mechanism for proofs.
- generate/proof_chain/rules.py: evaluate_modus_ponens / evaluate_proof_conclusion.
Proof-layer dispatch (Option B) over proposition FORMULAS via the canonicalizer;
never touches check_admissibility/_resolve_dep_units (proofs have no units).
Disagreement rule = the select_self_verified twin: pool ALL admissible single-step
MP derivations, require a unique canonical key == declared conclusion. Pooling (not
filter-to-declared-first) is the soundness mechanism.
- generate/logic_canonical.py: parse_top_implication (+ _unparse) — recovers an
implication's syntactic antecedent/consequent (the ROBDD form doesn't preserve it).
- Closed typed-reason set; the corpus's finer labels consolidate (6 disagreement
refuse-labels -> conclusion_disagreement; 4 antecedent-flavor labels ->
unestablished_antecedent — same redundancy, same mechanism-makes-one-distinction
principle).
- Honesty boundary (exact scope): guarantees a unique conclusion among SINGLE-STEP MP
over the premises, NOT "uniquely entailed" by all strategies.
Cross-check: all 24 GPT-5.5 adversarial corpus cases agree on OUTCOME against the real
rule (no rule bug / no corpus outcome-misread); reasons consolidate as above.
Mutation: filter-to-declared-first makes DISAGREE-007/010 wrongly admit -> pooling
tests fail (pooling load-bearing).
Drive-by fix (cleanup-as-you-find): merged ADR-0204 ProofNode.__post_init__ was
dedented to module level -> all ProofNode validation was silently DEAD (smoke skips
the dedicated test file; the smoke != full-suite hazard). Re-indented; validation
restored.
Additive (math lane untouched). Full binding-graph surface green; smoke 67.
Phase 2.2, structure only (no inference rule — modus_ponens is 2.3). Translates a
Proof into a SemanticSymbolicBindingGraph; the ADR-0203 acyclicity guard + ADR-0132
referential integrity fire at construction.
- generate/proof_chain/model.py: the one canonical proof input shape (ProofNode/Proof
+ proof_from_premises desugaring of the corpus premises/conclusion shape).
- generate/proof_chain/builder.py: build_proof_graph — node→symbol+equation;
canonical_key→rhs_canonical, depends_on→dependencies, rule→operation_kind;
premises = empty-deps/op="premise"; unit_proof=PROOF_NO_UNIT, admissibility="pending";
conclusion tracked as conclusion_symbol_id.
- tests: 9 — valid DAG (PC-MP-001 desugared) + multistep construct; PC-CYCLE-001
refuses THROUGH the real builder (circular_dependency); canonical_key round-trips
byte-identical + equivalent formulas share rhs_canonical; admissibility-dispatch
confirmation; self/dangling refusals; out-of-regime node refuses. Mutation-verified
(drop dep-wiring -> cycle admitted -> test fails).
Admissibility dispatch confirmed graceful on proof operation_kinds: unknown kinds
-> AdmissibilityError(unknown_operation), unitless deps -> unit_unbound; NEVER
misroutes into _check_additive. Named 2.3 constraint: check_admissibility runs
_resolve_dep_units before dispatch, so modus_ponens must bypass unit-resolution.
Open items named for 2.3 (ADR-0204): conclusion typing (BoundUnknown revisit),
semantic_role="unknown" (closed vocab has no "proposition"), unit_proof sentinel.
Additive (first consumer; math lane untouched). Full binding-graph surface green;
smoke 67. Honesty boundary: through 2.3, sound over declared atoms, not grounded in input.
GPT-5.5's independent corpus caught that the canonicalizer refused quantified/
predicate input only by accident (tokenizer chokes on '.'), not by design — a
by-luck-not-by-design refusal the wrong=0 discipline rejects. ADR-0202 §3 names a
typed `out_of_decidable_regime` refusal; the keystone emitted a generic grammar error.
- logic_canonical.py: LogicRegimeError(LogicError) + OUT_OF_DECIDABLE_REGIME;
_reject_out_of_regime_text (quantifier words forall/exists + symbols ∀/∃, pre-scan)
and _reject_out_of_regime_tokens (predicate-application ATOM-then-LPAREN), run BEFORE
the generic grammar error. Refusal only — no predicate/FOL capability added.
- logic_equivalence.py: typed regime branch (before the generic LogicError branch).
- tests: 43 total (10 new) — OOR refuses with typed reason; equivalence path too;
genuine grammar errors stay plain LogicError (no over-fire); `not (P)` not mistaken
for predicate application. Mutation-verified by-design (neuter -> falls through to
generic grammar error).
- ADR-0201.1: additive sub-ADR of 0201 (not an amendment; sub-number preserves the
landed ADR-0203 forward refs + phase-2 plan numbering). Honesty boundary load-bearing.
Corpus now 22/22 (PC-OOR-001/002 agree on the principled reason). Full canonicalizer
suite green; smoke 67 passed. modus_ponens rule-reasons remain deferred to ADR-0205 (2.3).
proof_chain phase 2.1: the acyclicity guard at the shared binding-graph
construction boundary, before phase 2.2 wiring can build a cyclic-capable structure.
- generate/binding_graph/acyclicity.py: pure find_cycle(adjacency) detector
(deterministic three-colour DFS; isolated, no model import).
- model.py __post_init__: builds {lhs: deps} adjacency over equations and raises
BindingGraphError(circular_dependency ...) on a cycle. Runs on every binding
graph (math + future proof) — illegal states unrepresentable for all consumers.
- tests/test_binding_graph_acyclicity.py: 17 tests (pure checker + construction
enforcement); mutation-verified non-vacuous.
- ADR-0203: new ADDITIVE invariant referencing ADR-0132 (not an amendment —
preserves the why-added-later history).
Math-lane regression proof: the only producer (math adapter) is acyclic by
construction (fresh result symbol per op, deps point backward); full
binding-graph + admissibility surface 392 green; guard refuses no existing graph.
Honesty boundary (load-bearing): through phase 2.3, proof_chain is SOUND OVER
DECLARED ATOMS, not grounded in recognized input (grounding is phase 2.4).
full binding-graph/admissibility surface: 392 passed. smoke: 67 passed.
1-page exec + backing brief for a first technical conversation, written to
survive a skeptical CTO. Every number/status sourced to docs/claims_ledger.md;
substrate-beneath-BrainOS framing held (not perception/motor); verify block is
fresh-clone-green. Prepared for internal review — not for distribution.
Reconcile every artifact that asserted the (since auto-reverted) mathematics_logic
expert promotion to the live machine state. Determinism proven intact (Week-1a):
the digest divergence is genuine single-source evidence-drift (GSM8K coverage probe
3/47 -> 4/46 via #310/#488), not a non-determinism defect. ADR-0120's fail-closed
property fired as designed; CORE revoked its own expert claim.
History keeps receipts; current-state reconciles to truth:
- Regenerate expert_claims_math_v1_signed.json -> promote_admitted:false,
reviewer_signature_matches:false, digest 02f6d3c8.
- reviewers.yaml math_expert_claims: quarantine note; entry kept (mismatch-refusal
keeps firing); intentionally NOT re-signed.
- ADR-0120-math-expert-ledger-flip: dated valid-at/auto-reverted header note.
- README: "next gate" narrative -> built-attempted-reverted; refresh stale count.
- docs/decisions/README: revert note + ADR-0200 index row.
- 3 fail-closed tests (2 files): "is-expert" -> fail-closed-revert assertions.
Were RED on main; now green (30 passed).
No eval gate, threshold, or safety boundary changed.
Add docs/claims_ledger.md (every public claim -> in-repo evidence, with the
four GSM8K numbers separated and labeled) and ADR-0200 recording the
mathematics_logic expert fail-closed revert as designed behavior (proven
single-source evidence-drift; determinism intact).
Additive only: no existing claim, eval gate, or test is touched. The
review-gated reconciliation diffs (reviewers.yaml quarantine note, ADR-0120
header note, signed-JSON regen, README narrative, 3 test reconciliations) are
listed in ADR-0200 section 4 and await operator ratification.
The decisions README index table stopped at ADR-0183 then jumped to
ADR-0196, omitting every top-level ADR that landed in between plus the
three newest. PRs #513/#514/#515 added ADR-0197/0198/0199 files without
touching the index; the 0184-0195 gap predates them.
Adds 12 rows in numeric order with title + status pulled from each ADR
header. No content/runtime change; pure index backfill.
- files-vs-index drift check: now empty (was 12)
- all 12 new link targets verified to resolve
Single portable 'where we are / what's next' page for the Zig native-substrate
work: gate status per component, the locked G1 CRDT contract, the immediate
next action (a new ADR to clear G2 before any Zig code), env gotchas
(PYO3_PYTHON=3.12; the public_demo wall-clock lane flake), and verification
commands. Lets any operator/agent resume cold.
Sibling links resolve once #509 (docs/zig/**) lands on main; merge #509 first.
Establishes the canonical Delta-CRDT reference contract so a future native
(Rust/Zig) backend is gate-G1-eligible under ADR-0196 — the ZC-0 'contract
pinning' slice. No Zig code; ZC-1+ remains gated at G2.
- vault/crdt.py: canonical Python reference (ArenaEntry, Delta, LocalArena,
merge_kernel, canonical_bytes, delta_hash). Pure content law — content-
addressed by IEEE-754 bits then provenance; no normalization, no versor
closure, no global Vault writes.
- ZC-0 contract tests (semilattice C-1..C-5; content ordering / signed-zero /
NaN bit-addressing; C-7 no-global-write) — all failable (mutation-checked:
no-dedup breaks C3/C5, arrival-order breaks C1).
- Golden fixture corpus (tests/fixtures/crdt/) regenerated deterministically
from the reference; single source of truth also emits the Rust expected hex.
- core-rs: Delta::canonical_bytes + test_crdt_hash_parity.rs proving Rust
produces byte-identical canonical_bytes to the Python reference.
- ADR-0180 -> Accepted: locked contract, byte layout, obligation map, and the
explicit boundary that no Zig is authorized.
Verification: ZC-0 21 passed, Rust arena+parity 16 passed, architectural
invariants 40 passed, smoke 67 passed. Serving frozen: 7/8 lane SHAs match;
the public_demo miss is a pre-existing wall-clock budget overrun (ADR-0099,
~46-48s > 30s) reproduced identically on clean main — environmental.
First foundation-curriculum substrate pack: 24 reviewed noun lemmas for
syntax/claim/provenance vocabulary (subject, predicate, agent_role,
clause, antecedent, consequent_role, polarity, negation, evidence_span,
…). Substrate only — no parser, no runtime generation change.
This is the clean reland of #503 (merged then reverted via #508 for
shipping two failing tests). Root cause of the revert was lemma
collision: the smoke CI gate does not collect dedicated test files, so
the pack merged green while its own test asserted resolver routings that
were false.
Reland fixes, with the full collision audit done against every on-disk
pack (not just the one the original author checked):
- agent -> agent_role (bare `agent` owned by en_core_meta_v1)
- comparison -> comparison_relation(bare `comparison` owned by en_core_cognition_v1)
- consequent -> consequent_role (bare `consequent` owned by en_core_causation_v1)
- negation kept bare on purpose: no *mounted* pack owned it
(en_mathematics_logic_v1 is a domain pack, not in
DEFAULT_RESOLVABLE_PACK_IDS), so mounting syntax now grounds a word
that previously returned None. Renaming would have lost grounding.
The original test also mis-asserted prior resolution: it claimed
`cause` -> en_core_causation_v1, but first-match-wins resolves it to
en_core_cognition_v1 (mounted at index 0). The test now pins the TRUE
current owner; this pack does not change it.
Resolver: en_core_syntax_v1 mounted after en_core_polarity_v1 and before
en_core_relations_v1 — purely additive, steals no prior resolution.
Evidence:
- tests/test_en_core_syntax_v1_pack.py: 13/13 (was 4 failed, 9 passed)
- pack/resolver/grounding/invariants blast radius: 415 passed
- core test --suite smoke: 67 passed
- core test --suite packs: 1 failed, 140 passed — the single failure
(test_lilibeth_canary_solves_end_to_end, GSM8K candidate-graph reader)
is PRE-EXISTING on clean main f79b647, byte-identical, and untouched by
this PR.
- lane SHAs: 7/8 content-match; the public_demo miss is a wall-clock
DemoContractError (>30s budget), not content drift — serving frozen.
PR checklist:
- Capability: foundation-curriculum language substrate vocabulary.
- Field invariant: pack loads through checksum-sealed compiler; no
algebra/versor path touched.
- Lane: core test --suite packs / smoke; dedicated pack test.
- No hidden normalization, stochastic fallback, approximate recall, or
unreviewed mutation.
- Trust boundary: language-pack loading only; manifest checksums hash the
exact bytes on disk (recomputed after the two renames).
