Rings 2 and 3 of the ADR-0246 preflight §9, built exactly as the brief bounds
them. ADR-0247 + ADR-0248 both **Proposed** — no self-Accept.
Ring 2 (core/ports/residual_protocol.py — ADR-0247):
the 7-stage shared control grammar: witness -> typed residual decomposition
-> permitted operator selection -> bounded operation or abstention ->
re-certification -> action decision -> append-only replay record.
Port-agnostic (no registry, no unified scheduler — §7 non-goal #2 honored);
v1 operators are ZERO-BOUND only (nonzero fails closed — no-silent-correction
doctrine); unaccounted residual fails closed; re-certification RAISES on
witness drift during a zero-bound pass; replay chain is append-only,
full-SHA-256 content-addressed, tamper-evident (verify_replay_chain).
NOTE: named core/ports/ because core/protocol/ is the existing CTP v0 wire
format (collision checked before naming).
Ring 2 adapters (core/ports/adapters.py): IdentityPort (ADR-0246 grade-1
geometry; typed channels travel IN the witness so decompose is a pure
re-shaping, no hidden state; admit = evaluate_admission, single source of
truth) + PrecisionPort (ADR-0244 §2.5 cast transport; ServingState subjects)
— two genuinely non-identical native geometries + a synthetic third port
proving grammar agnosticism.
Ring 3 (core/ports/integrity_handoff.py — ADR-0248):
the coordination seam ('Integrity coordinates handoffs; it does not replace
content-bearing cognition'): fuses Ring-2 port decisions + existing
EpistemicState/NormativeClearance into content-free proceed/hedge/abstain
(conjunctive, strongest-restriction-wins; fail-closed on missing/invalid
evidence; binds replay-chain tip digest; handoff itself content-addressed).
Weak epistemic standing hedges (mirrors hedge doctrine) — only integrity
violations silence a turn. OBSERVE-ONLY: no serve consumer yet; that is a
future flag-gated unit. Remaining Ring-3 programme honestly listed open
(world-model, governed-learning consumption, discourse widening).
Both pure/deterministic/off-serving (A-04 pinned); brief §0a/§9 updated.
[Verification]: uv run core test --suite smoke -q => 176 passed; Ring 2/3 +
ADR-0246 suites + D4 gate surfaces => 125 passed (28 new Ring-2/3 pins);
run log docs/audit/artifacts/ring2-ring3-runlog.txt
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