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May 13, 2026
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feat(cabr): add optional persistence to consensus finalization (Phase 3) #581

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206 changes: 206 additions & 0 deletions ...audits/consensus/CABR_CONSENSUS_FINALIZATION_PHASE3_AUTO_PERSIST_INTEGRATION.md
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# CABR Consensus Finalization Phase 3 - Auto-Persist Integration

**Slice**: CABR_CONSENSUS_FINALIZATION_PHASE3_AUTO_PERSIST_INTEGRATION
**Worker**: W1
**Date**: 2026-05-13
**Base**: 738b783907de (after PR #580)

## Overview

This document audits the Phase 3 implementation of optional caller-provided persistence integration for CABRConsensusRecord finalization. This builds on Phase 1 (in-memory consensus) and Phase 2 (SQLite audit trail storage).

## WSP 97 Critical Constraint: Auto-Persist Does NOT Mean State Progression

**CRITICAL**: Auto-persist means storing the review-only CABRConsensusRecord when an explicit store is provided. It does NOT mean:

| Prohibited Semantic | Implementation | Verdict |
|---------------------|----------------|---------|
| Automatic state progression | Records stored as-is, no mutation | COMPLIANT |
| `verification_complete=True` | Always stored as False | COMPLIANT |
| `cabr_ready=True` | Always stored as False | COMPLIANT |
| `payout_ready=True` | Always stored as False | COMPLIANT |
| Payout approval | No payout logic triggered | COMPLIANT |
| DAO activation | No DAO transition logic | COMPLIANT |
| External settlement | No network calls | COMPLIANT |
| Default DB path | Caller must provide store explicitly | COMPLIANT |
| Implicit filesystem writes | store=None produces no writes | COMPLIANT |

## Scope Boundaries

### In Scope
- Optional `store` parameter on finalize functions
- Caller-provided CABRConsensusStore persistence
- Explicit persistence status via `finalize_cabr_consensus_with_result()`
- Batch finalization with persistence
- Idempotent duplicate handling (ALREADY_EXISTS = success)
- Store failure logging without blocking consensus return

### Out of Scope (Prohibited)
- Network calls
- Secrets/credentials storage
- External attestation
- Payout triggering
- DAO activation
- Token issuance
- Automatic state progression
- Default DB path
- DB artifacts in git

## API Design

### Simple API (Backward Compatible)

```python
def finalize_cabr_consensus(
consensus_input: CABRConsensusInput,
include_input_snapshot: bool = False,
store: Optional[CABRConsensusStore] = None,
) -> CABRConsensusRecord:
"""
Finalize consensus with optional persistence.

- store=None: Identical to Phase 1 (no filesystem writes)
- store provided: Persist record after finalization
- Store failures: Logged, record still returned
"""
```

### Explicit Result API

```python
def finalize_cabr_consensus_with_result(
consensus_input: CABRConsensusInput,
include_input_snapshot: bool = False,
store: Optional[CABRConsensusStore] = None,
) -> CABRConsensusFinalizeResult:
"""
Finalize consensus with explicit persistence status.

Returns CABRConsensusFinalizeResult with:
- record: CABRConsensusRecord
- persistence_attempted: bool
- persistence_success: bool
- persistence_status: str (success/already_exists/error)
- persistence_error: Optional[str]
"""
```

### Batch APIs

```python
def finalize_cabr_consensus_batch(
inputs: List[CABRConsensusInput],
store: Optional[CABRConsensusStore] = None,
) -> List[CABRConsensusRecord]:
"""Batch finalization with optional persistence."""

def finalize_cabr_consensus_batch_with_results(
inputs: List[CABRConsensusInput],
store: Optional[CABRConsensusStore] = None,
) -> List[CABRConsensusFinalizeResult]:
"""Batch finalization with explicit persistence status per record."""
```

### Result Dataclass

```python
@dataclass
class CABRConsensusFinalizeResult:
record: CABRConsensusRecord
persistence_attempted: bool = False
persistence_success: bool = False
persistence_status: Optional[str] = None
persistence_error: Optional[str] = None
```

## Persistence Behavior

### When store=None (Phase 1 Behavior)

1. Finalization logic unchanged from Phase 1
2. No filesystem writes
3. No DB file created
4. Returns CABRConsensusRecord directly
5. `finalize_with_result()` returns `persistence_attempted=False`

### When store Provided

1. Finalization logic executes first
2. Record persisted via `store.save_record(record.to_dict())`
3. Duplicate record_id: Returns ALREADY_EXISTS (idempotent, not error)
4. Store failure: Logged, record still returned
5. `finalize_with_result()` includes persistence status

### Store Failure Handling

```
Failure Mode | Simple API | With Result API
---------------------|----------------------|---------------------------
Schema not init | Log error, return rec | persistence_success=False
Write error | Log error, return rec | persistence_error=<msg>
Connection error | Log error, return rec | persistence_status=exception
```

**Fail-Closed for Callers**: When persistence is required, callers MUST use `finalize_cabr_consensus_with_result()` and check `persistence_success`. The simple API swallows store errors.

## Test Coverage

**File**: `test_cabr_consensus_finalizer_persistence.py`
**Tests**: 26

| Test Class | Coverage |
|------------|----------|
| `TestStoreNoneProducesNoDbFile` | store=None behavior, no DB file, persistence_attempted=False |
| `TestProvidedStoreSavesAcceptedRecord` | Accepted record persistence, success status |
| `TestProvidedStoreSavesRejectedPendingRecords` | REJECTED/PENDING/NOT_FINALIZED all persisted |
| `TestDuplicateFinalizationIdempotent` | Duplicate record_id returns ALREADY_EXISTS |
| `TestStoreFailureReturnsExplicitFailure` | Schema not init fails, record still returned |
| `TestBatchFinalizationPersistsAllRecords` | Batch persistence, order preserved |
| `TestPersistedTruthFieldsRemainFalse` | WSP 97 truth fields always False |
| `TestNoPayoutDaoStateProgression` | No payout/DAO fields, cabr_ready stays False |
| `TestNoDefaultDbPathUsed` | No implicit store creation |
| `TestTmpPathOnly` | tmp_path usage verification |
| `TestFinalizeResultSerialization` | to_dict() includes all fields |

## Files Changed

| File | Lines Changed | Purpose |
|------|---------------|---------|
| `src/cabr_consensus_finalizer.py` | +350 (net) | Phase 3 persistence integration |
| `tests/test_cabr_consensus_finalizer_persistence.py` | +520 (new) | Test coverage |
| `docs/audits/consensus/CABR_CONSENSUS_FINALIZATION_PHASE3_AUTO_PERSIST_INTEGRATION.md` | ~200 (new) | This document |

## Regression Test Results

All existing tests pass after Phase 3 integration:

| Test File | Result |
|-----------|--------|
| `test_cabr_consensus_finalizer.py` | 48 passed |
| `test_cabr_consensus_store.py` | 35 passed |
| `test_quorum_verification_engine.py` | 41 passed |
| `test_cabr_scoring_engine.py` | 42 passed |
| `test_cabr_consensus_finalizer_persistence.py` | 26 passed |

**Total**: 192 tests, 0 failures

## WSP Compliance Matrix

| WSP | Requirement | Status |
|-----|-------------|--------|
| WSP 11 | Interface contract (explicit, typed) | COMPLIANT |
| WSP 29 | CABR Engine Framework (consensus logic) | COMPLIANT |
| WSP 91 | Observability (timestamps, audit fields) | COMPLIANT |
| WSP 97 | System Execution Prompting (truth boundaries) | COMPLIANT |

## WSP 97 Verdict

**COMPLIANT**: The Phase 3 auto-persist integration correctly stores review-only consensus records without causing state progression, payout approval, DAO activation, or truth field mutation. Persistence is evidence storage only.

## Recommended Next Slice

**CABR_CONSENSUS_FINALIZATION_PHASE4**: Consensus record aggregation and reporting tools for audit trail analysis, including:
- List records by decision type
- Time-range queries
- Receipt correlation lookup
- Consensus metrics aggregation (without state progression)
83 changes: 83 additions & 0 deletions modules/communication/moltbot_bridge/ModLog.md
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# ModLog - moltbot_bridge

## 2026-05-13: CABR Consensus Finalization Phase 3 - Auto-Persist Integration (WSP 97)

**Author**: 0102 (Worker W1)
**WSP**: 97 (System Execution Prompting), 91 (Observability)
**Slice**: `CABR_CONSENSUS_FINALIZATION_PHASE3_AUTO_PERSIST_INTEGRATION`

### Summary

Integrated optional caller-provided persistence into CABR consensus finalization. When a CABRConsensusStore is provided, the consensus record is automatically persisted after finalization. This completes the Phase 1-3 consensus pipeline: scoring -> quorum -> finalization -> storage.

### WSP 97 Critical Constraint

Auto-persist means storing the review-only CABRConsensusRecord when an explicit store is provided. It does NOT mean:
- Automatic state progression
- `verification_complete=True`
- `cabr_ready=True`
- `payout_ready=True`
- Payout approval
- DAO activation
- External settlement
- Default DB path (caller must provide explicitly)

### Files Changed

| File | Change | Purpose |
|------|--------|---------|
| `src/cabr_consensus_finalizer.py` | Extended | Added optional `store` parameter to finalize functions |
| `tests/test_cabr_consensus_finalizer_persistence.py` | New | 26 tests for persistence integration |
| `docs/audits/consensus/CABR_CONSENSUS_FINALIZATION_PHASE3_AUTO_PERSIST_INTEGRATION.md` | New | Audit documentation |

### New API Surface

```python
# Extended APIs with optional store parameter
def finalize_cabr_consensus(
consensus_input: CABRConsensusInput,
include_input_snapshot: bool = False,
store: Optional[CABRConsensusStore] = None, # NEW
) -> CABRConsensusRecord

def finalize_cabr_consensus_batch(
inputs: List[CABRConsensusInput],
store: Optional[CABRConsensusStore] = None, # NEW
) -> List[CABRConsensusRecord]

# New explicit result APIs
@dataclass
class CABRConsensusFinalizeResult:
record: CABRConsensusRecord
persistence_attempted: bool
persistence_success: bool
persistence_status: Optional[str]
persistence_error: Optional[str]

def finalize_cabr_consensus_with_result(...) -> CABRConsensusFinalizeResult
def finalize_cabr_consensus_batch_with_results(...) -> List[CABRConsensusFinalizeResult]
```

### Persistence Behavior

| Condition | Simple API | With Result API |
|-----------|------------|-----------------|
| `store=None` | No writes (Phase 1 behavior) | `persistence_attempted=False` |
| Store provided, success | Record persisted, logged | `persistence_success=True` |
| Store provided, duplicate | Logged as idempotent | `persistence_status='already_exists'` |
| Store failure | Logged, record returned | `persistence_success=False`, error message |

### Test Results

- `test_cabr_consensus_finalizer_persistence.py`: 26 passed
- `test_cabr_consensus_finalizer.py`: 48 passed (no regression)
- `test_cabr_consensus_store.py`: 35 passed (no regression)
- `test_quorum_verification_engine.py`: 41 passed (no regression)
- `test_cabr_scoring_engine.py`: 42 passed (no regression)

**Total**: 192 tests, 0 failures

### Recommended Next Slice

`CABR_CONSENSUS_FINALIZATION_PHASE4` - Consensus record aggregation and reporting tools for audit trail analysis.

---

## 2026-05-13: CABR Consensus Store Phase 2 - SQLite Audit Trail (WSP 97)

**Author**: 0102 (Worker W1)
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