feat(uci): integrate effect-bound verification chain

[tarikskalic33]

UCI-4 — Effect-Bound Verification Chain Integration

Status: INDEPENDENTLY REVIEWED / SECURITY-HARDENED / EXACT-HEAD VERIFIED / READY FOR REVIEW

Exact lineage

CANONICAL_MAIN = 32b7eb6a37fb69d19dd80189390b6641c5004ef1
UCI4_PARENT = #275 @ ebec2f9c8fa00f54605d859df61512108ff3b71d
CURRENT_REVIEWED_HEAD = bda5c5369b15ec91f2651ddbf6d219f6b7a1d0f6
FROZEN_SOURCE_PROOFLINE = #268 -> #270 -> #272 -> #273
FROZEN_SOURCE_TIP = 6407db1b0c4176f67a1d7ecbb16eca77d131d87e

This PR reconciles the frozen transition/effect-verification proofline onto the current UCI integration spine. It does not import AtomicAdmission, collective-memory admission, production admission, or the historical stacked branch DAG wholesale.

Preserved epistemic chain

TransitionIdentity
 -> DecisionReceipt
 -> ExecutionReceipt
 -> independently observed EffectWitness / EffectEvidence
 -> EffectVerificationResult
 -> verifier-gated EffectReceipt
 -> CompleteVerificationResult

Hard boundaries remain:

• DecisionReceipt != ExecutionReceipt != EffectReceipt nominally and after serialization;
• only PERMIT carries decision authority;
• DEFER -> WAITING; DEFER -/-> EXECUTE;
• ExecutionReceipt -/-> EffectReceipt;
• caller-supplied post-state is never EffectEvidence;
• no generic EffectReceipt producer exists;
• CompleteVerificationResult=TRUE is verifier output only and does not create or imply admission;
• provider/model output remains evidence only, never authority.

Independent review findings and TDD closure

Review found that the original 79-test GREEN did not close three effect-evidence integrity gaps and three CI/evidence-contract gaps:

1. EffectWitness was publicly constructible and structural adapter identity/version checks could accept a caller-fabricated witness as verified effect evidence;
2. the filesystem reference adapter used a resolve -> open sequence susceptible to open-time path/symlink redirection;
3. observation hashing read the full file without an explicit size bound;
4. the UCI-4 gate derived its supposed expected parent dynamically from the PR base instead of binding the frozen parent literally;
5. the workflow triggered on downstream PRs outside its own frozen-parent boundary;
6. the gate did not lock expected proofline cardinality.

All six regression falsifiers were committed before the production hardening patch.

Security RED — ESTABLISHED

TEST_ONLY_CANDIDATE = 4c805dff810b0493612ac96e1b7275caeac8b005
NATIVE_RUN = 32381803664
NATIVE_JOB = 96466565104
EXACT_PARENT_LINEAGE = PASS
SCHEMAS = 6/6 PASS
PRIOR_BASELINE = 79 PASS
NEW_SECURITY_CI_FALSIFIERS = 6 FAIL
RESULT = 79 PASS / 6 FAIL
ARTIFACT_ID = 9411298497
ARTIFACT_ZIP_SHA256 = e7d41b6f5ff788d048c3656a6d20989411a9782c64004eb2fc0c3caefd1707c7

The six failures were exactly the preregistered fabricated-witness, open-time redirect, missing size-bound, frozen-parent, trigger-scope, and cardinality failures. No pre-existing semantic test regressed in the RED candidate.

Hardened implementation

The reference filesystem observer now:

• opens path components descriptor-relatively beneath the allowed root using dir_fd + O_NOFOLLOW on supported POSIX;
• fails closed when the race-resistant open primitive is unavailable;
• hashes through bounded streaming reads rather than whole-file read();
• applies an explicit observation-size ceiling;
• checks descriptor metadata before/after observation and fails closed on detected mutation;
• registers only exact process-local EffectWitness objects produced by the adapter, and the verifier rejects structurally fabricated/reconstructed witnesses as V_effect_evidence=FALSE.

The native gate now binds literal frozen parent ebec2f9…, verifies the actual PR base against it, runs only for PRs targeting the UCI-1 parent branch, and locks the hardened proofline to 85 passed.

Final repo-native exact-head witness — ESTABLISHED

UCI-4 Effect Chain Contract run 32382334592, job 96468341013 checked out exact:

CANDIDATE_SHA = bda5c5369b15ec91f2651ddbf6d219f6b7a1d0f6
EXPECTED_PARENT_SHA = ebec2f9c8fa00f54605d859df61512108ff3b71d
PR_BASE_SHA = ebec2f9c8fa00f54605d859df61512108ff3b71d
EXACT_LINEAGE = PASS
SCHEMAS = 6/6 PASS
HARDENED_PROOFLINE = 85/85 PASS
FAILURES = 0
ARTIFACT_ID = 9411502359
ARTIFACT_ZIP_SHA256 = a8ef6d63d292914f8b7e650120a8e64f1125b20b49aeca6e2f7ae518718b6a2c
AUTHORITY = EVIDENCE_ONLY

Other native exact-head gates on bda5c536…:

• UCI-4 Effect Chain Contract — 32382334592 — SUCCESS
• Coq Formal Attestation — 32382334558 — SUCCESS
• Kernel One — 32382334359 — SUCCESS
• AEGIS Coordinator Authority — 32382334393 — SUCCESS
• AEGIS Agent Dispatch — SKIPPED; not counted as pass/failure evidence

No result is promoted from an earlier SHA.

Review decision and explicit residual boundaries

The identified UCI-4 proof-integrity blockers are closed for the declared local/reference effect-observation scope. This is not promoted into stronger production claims.

UCI4_TRANSITION_AND_RECEIPT_SEPARATION = IMPLEMENTED_AND_EXACT_HEAD_TESTED
UCI4_EFFECT_WITNESS_FABRICATION_VIA_ORDINARY_PUBLIC_CONSTRUCTION = REJECTED_AND_TESTED_REFERENCE
UCI4_FILESYSTEM_DESCRIPTOR_RELATIVE_CONTAINMENT = IMPLEMENTED_AND_TESTED_POSIX_REFERENCE
UCI4_FILESYSTEM_BOUNDED_STREAMING_HASH = IMPLEMENTED_AND_TESTED_REFERENCE
UCI4_VERIFY_EFFECT = IMPLEMENTED_AND_EXACT_HEAD_TESTED_REFERENCE
UCI4_EFFECT_RECEIPT_PRODUCTION = VERIFIER_GATED_ONLY
UCI4_COMPLETE_VERIFICATION = IMPLEMENTED_AND_EXACT_HEAD_TESTED_REFERENCE
UCI4_FROZEN_PARENT_CI_BINDING = REQUIRED_AND_TESTED
UCI4_PROOFLINE_CARDINALITY_85 = REQUIRED_AND_TESTED

CROSS_PROCESS_EFFECT_WITNESS_CRYPTOGRAPHIC_ATTESTATION = NOT_ESTABLISHED
MALICIOUS_SAME_PROCESS_PYTHON_SANDBOX = NOT_ESTABLISHED
ATOMIC_CONCURRENT_FILE_SNAPSHOT_PROOF = NOT_ESTABLISHED
NON_POSIX_PRODUCTION_FILESYSTEM_OBSERVATION = NOT_ESTABLISHED
ATOMIC_ADMISSION = NOT_IMPLEMENTED_IN_UCI4
EFFECT_BOUND_ADMISSION = UNAVAILABLE_IN_UCI4
CAUSAL_CLAIM_ADMISSION = NOT_IMPLEMENTED
PRODUCTION_ADMISSION = NOT_ESTABLISHED
DISTRIBUTED_LINEARIZABILITY = NOT_ESTABLISHED
AGI = NOT_ESTABLISHED

The process-local issuance registry is a nominal reference provenance boundary, not a cryptographic attestation mechanism. Descriptor-relative O_NOFOLLOW containment is a POSIX reference hardening; unsupported platforms fail closed rather than silently weakening the invariant. Metadata-before/after checking detects ordinary concurrent mutation but is not represented as an atomic filesystem snapshot proof against a privileged adversary.

Parent #275 is already READY FOR REVIEW. UCI-5 remains a separate successor and must be restacked/reverified against this new exact UCI-4 head before any downstream status can be promoted.

No mutation of main, #275, #264, #268, #270, #272, or #273 occurred.

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