Sibling reconciliation PR to #104. The four ADRs explicitly called out as
the 'current implementation frontier' in PR #104 are already implemented
to the same evidence bar as the eight ADRs that PR accepted:
- ADR-0094: teaching/source.py + proposal schema widening + migration
script; tests/test_proposal_source.py green
- ADR-0095: teaching/from_miner.py + miner_loop_closure lane;
SHA-pinned in scripts/verify_lane_shas.py; tests/test_miner_proposals.py
green
- ADR-0098: core/demos/contract.py + adapter surface + demo_composition
lane; SHA-pinned; tests/test_demo_composition.py green
- ADR-0099: core/demos/showcase.py + public_demo lane;
SHA-pinned; tests/test_public_showcase.py green
Three of four lanes are SHA-pinned in CI (a stricter bar than several
already-accepted ADRs). Local pytest run: 85/85 passed across the four
tests/test_*.py files in 17s.
Also refreshes docs/decisions/README.md:
- flips the four table rows to Accepted (2026-05-22)
- rewrites the 'Current frontier' section now that no ADR-0091..0102
entry is unimplemented
- enumerates candidate next directions (curriculum proposals,
language-specific holdout splits, expert-demo ratification)
Docs-only change; no runtime code touched.
Eight load-bearing ADRs closing the loop from contemplation Phase 5 through
a public showcase demo. Each one is small and evidence-bearing; together
they sequence the next arc without duplicating existing substrate.
- 0092 Reviewer Registry v1 — populates docs/reviewers.yaml schema;
unblocks all reasoning-capable claims under ADR-0091.
- 0093 Domain Pack Contract v1 Implementation — wires ADR-0091's five
follow-up items (parser, dry-run validator, chain registry, eval lane
refs, reviewer resolution) so manifest fields actually gate status.
- 0094 Proposal Source Provenance — sealed ProposalSource type widening
proposal schemas ahead of 0095.
- 0095 Miner-Sourced Teaching Proposals — closes the contemplation
loop: articulation_quality / contradiction_detection / frontier_compare
miners emit PackMutationProposal candidates routed through the single
reviewed teaching path; identity-pack defense at construction, not
review; replay-equivalence pre-gate.
- 0096 Fabrication-Control Eval Lane — first negative-control measure;
three case classes (phantom endpoint, cross-pack non-bridge, sibling
collapse) with frozen thresholds (fabrication_rate ≤ 0.01).
- 0097 Mathematics-Logic Reasoning-Capable Ratification — first
domain claim under ADR-0091; chain corpus + eval lanes already
exist, this is the formal contract ratification.
- 0098 Demo Composition Contract — DemoCommand protocol so demos can
be composed without reimplementation; deterministic JSON, no global
state mutation, declared output paths only.
- 0099 Public Showcase Demo — composes four scenes (determinism /
honest unknown / reviewed learning / multi-hop+trace) under 30s;
pure composition enforced by grep gate; JSON byte-equality CI-pinned.
Landing order: 0092 → 0094 → 0095 → 0093 → 0096 → 0097 → 0098 → 0099.
Deliberately not included: curriculum compiler, formation course
runner, calculator operators, response-mode taxonomy expansion,
learning-scale 10k harness. Each is deferred with a documented reason.
