Physical AI Supervisor Commit Ledger Stress 023 - Raw Research Artifact

Generated at: 2026-07-09T13:24:21Z Classification: Experimental runtime path validation

Purpose

Experiment 023 validates the supervisor-specific commit-ledger sink contract under repeated projection failures and fresh runtime restarts.

Summary

Metric	Value
Bounded passes	6
Proposals per pass	2
Total proposals	12
Injected projection faults	3
Final commit rows	12
Final decision rows	12
Final evidence rows	12

Fault And Repair

Fault Type	Count	Repair Path	Result
Malformed evidence projection	3	Restore schema, run fresh runtime	pass
Sink error budget exhaustion	3	Fail pass, retry after repair	pass
Runtime restart between fault and repair	3	Reinstall SQL hooks from config object	pass

Acceptance

Criterion	Status
six bounded passes complete	pass
three projection faults injected	pass
faulted passes fail through sink budget	pass
repair passes converge after schema restoration	pass
commit rows equal total proposals	pass
decision rows equal total proposals	pass
evidence rows equal total proposals	pass
proposal ids remain unique in all sink tables	pass

Verification

ninja -C build -j$(nproc) zepto_tests

./build/tests/zepto_tests \
  --gtest_filter='ActionOutcomeSqlAdapterTest.CommitLedgerStressRepairsProjectionFailuresAcrossRestarts' \
  --gtest_brief=1

Result: pass, 1/1 focused test.

Broader gates:

x86_64 CTest: pass, 1712/1712.
aarch64 stage 8 CTest: pass, 1712/1712.
Live S3 opt-in smoke: pass, 2/2; temporary bucket cleanup verified gone.

Interpretation

The commit ledger remains the correct effectively-once boundary for the current Action-Outcome supervisor sink. Projection tables can be repaired from the ledger after schema restoration without duplicate proposal ids. This does not promote a generic multi-table SQL transaction primitive.