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May 13, 2026
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feat(cabr): add read-only aggregation and reporting for audit trails #582

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245 changes: 245 additions & 0 deletions docs/audits/consensus/CABR_CONSENSUS_FINALIZATION_PHASE4_AGGREGATION_REPORTING.md
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# CABR Consensus Finalization Phase 4 - Aggregation and Reporting

**Slice**: CABR_CONSENSUS_FINALIZATION_PHASE4_AGGREGATION_REPORTING
**Worker**: W1
**Date**: 2026-05-13
**Base**: 8cba287969dd (after PR #581)

## Overview

This document audits the Phase 4 implementation of read-only aggregation and reporting tools for persisted CABRConsensusRecord audit trails. This builds on Phase 1 (in-memory consensus), Phase 2 (SQLite audit trail storage), and Phase 3 (auto-persist integration).

## WSP 97 Critical Constraint: Reporting is Observability Only

**CRITICAL**: Reporting means read-only aggregation over CABRConsensusStore for observability. It does NOT mean:

| Prohibited Semantic | Implementation | Verdict |
|---------------------|----------------|---------|
| Automatic state progression | Read-only queries, no mutations | COMPLIANT |
| `verification_complete=True` | Summarizes but never sets | COMPLIANT |
| `cabr_ready=True` | Summarizes but never sets | COMPLIANT |
| `payout_ready=True` | Summarizes but never sets | COMPLIANT |
| Payout approval | No payout logic | 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 | JSON export returns string only | COMPLIANT |
| Payout readiness inference | High acceptance != payout ready | COMPLIANT |
| DAO activation inference | High quorum != DAO activation | COMPLIANT |

## Scope Boundaries

### In Scope
- Read-only aggregation over CABRConsensusStore
- Decision counts by type
- Reason code counts
- Truth boundary summary (all should be False)
- Truth boundary anomaly flagging
- Quorum metrics summary
- Deterministic JSON export
- Decision filtering

### Out of Scope (Prohibited)
- Store mutation
- Network calls
- Secrets/credentials
- External attestation
- Payout triggering
- DAO activation
- Token issuance
- Automatic state progression
- Default DB path
- Implicit filesystem writes
- Payout readiness inference
- DAO activation inference

## API Design

### Core Report Function

```python
def generate_consensus_report(
store: CABRConsensusStore,
limit: Optional[int] = None,
decision_filter: Optional[str] = None,
) -> CABRConsensusReport:
"""
Generate read-only consensus report from store.

WSP 97: Observability only. No state progression, payout, or DAO inference.
"""
```

### Summary Function (Pure)

```python
def summarize_consensus_records(
records: List[Dict[str, Any]]
) -> CABRConsensusReportSummary:
"""
Summarize records without store access (pure function).
Does not mutate input records.
"""
```

### JSON Export (Pure)

```python
def export_consensus_report_json(
report: CABRConsensusReport,
indent: int = 2,
) -> str:
"""
Export report to deterministic JSON string.
Does NOT write to filesystem - caller handles file output.
"""
```

### Convenience Functions

```python
def count_decisions(store, limit=None) -> CABRDecisionCounts
def check_truth_boundary_anomalies(store, limit=None) -> CABRTruthBoundarySummary
def get_records_by_decision(store, decision, limit=None) -> List[Dict]
```

### Report Dataclasses

```python
@dataclass
class CABRConsensusReport:
records: List[Dict[str, Any]]
summary: CABRConsensusReportSummary
generated_at: datetime
report_version: str = "1.0.0"
decision_filter: Optional[str] = None
record_limit: Optional[int] = None
wsp97_compliance_note: str = "..."

@dataclass
class CABRConsensusReportSummary:
decision_counts: CABRDecisionCounts
reason_code_counts: CABRReasonCodeCounts
truth_boundary_summary: CABRTruthBoundarySummary
quorum_metrics: CABRQuorumMetricsSummary

@dataclass
class CABRDecisionCounts:
not_finalized: int
rejected: int
accepted_for_review: int # WSP 97: Does NOT mean cabr_ready
pending_quorum: int
blocked_truth_boundary: int
total: int

@dataclass
class CABRTruthBoundarySummary:
total_records: int
verification_complete_false: int
verification_complete_true: int # Anomaly if > 0
cabr_ready_false: int
cabr_ready_true: int # Anomaly if > 0
payout_ready_false: int
payout_ready_true: int # Anomaly if > 0
has_anomaly: bool
anomaly_record_ids: List[str] # Sorted for determinism
```

## Reporting Behavior

### Read-Only Guarantee

1. All queries are SELECT-only
2. No INSERT/UPDATE/DELETE operations
3. Input records not mutated
4. Store state unchanged after report generation

### Deterministic Ordering

1. Records returned in consistent order (by finalized_at DESC)
2. Reason code counts sorted alphabetically
3. Anomaly record IDs sorted alphabetically
4. JSON export uses sorted keys

### Truth Boundary Detection

1. All truth fields should be False in Phase 1-4 records
2. Any True value flags has_anomaly=True
3. Record IDs with anomalies listed in anomaly_record_ids
4. Report includes WSP 97 compliance note

### JSON Export

1. Deterministic output (sorted keys)
2. Returns string only (no filesystem write)
3. Includes WSP 97 compliance note in output
4. Caller responsible for file I/O if needed

## Test Coverage

**File**: `test_cabr_consensus_reporting.py`
**Tests**: 48

| Test Class | Coverage |
|------------|----------|
| `TestEmptyStoreReport` | Empty store produces valid report with zero counts |
| `TestMixedDecisionReport` | Mixed decisions counted correctly |
| `TestDecisionFilterReport` | Filter by decision type works |
| `TestReasonCodeCounts` | Reason codes counted and sorted |
| `TestTruthBoundarySummaryAllFalse` | All False = no anomaly |
| `TestTruthBoundaryAnomalyFlagged` | True value = anomaly flagged |
| `TestDeterministicJsonExport` | JSON is deterministic and valid |
| `TestReportDoesNotMutateStore` | Store unchanged after report |
| `TestNoPayoutReadinessInferred` | High acceptance != payout ready |
| `TestNoDAOActivationInferred` | High quorum != DAO activation |
| `TestNoDefaultDbPath` | Functions require explicit store |
| `TestTmpPathOnly` | tmp_path usage verification |
| `TestQuorumMetricsSummary` | Quorum metrics calculated correctly |
| `TestSummarizeRecordsPureFunction` | Pure function behavior |
| `TestDataclassSerialization` | Dataclasses serialize correctly |

## Files Changed

| File | Lines | Purpose |
|------|-------|---------|
| `src/cabr_consensus_reporting.py` | ~530 (new) | Read-only aggregation and reporting |
| `tests/test_cabr_consensus_reporting.py` | ~650 (new) | Test coverage (48 tests) |
| `docs/audits/consensus/CABR_CONSENSUS_FINALIZATION_PHASE4_AGGREGATION_REPORTING.md` | ~250 (new) | This document |

## Regression Test Results

All existing tests pass after Phase 4 implementation:

| Test File | Result |
|-----------|--------|
| `test_cabr_consensus_reporting.py` | 48 passed |
| `test_cabr_consensus_finalizer.py` | 48 passed |
| `test_cabr_consensus_store.py` | 35 passed |
| `test_cabr_consensus_finalizer_persistence.py` | 26 passed |

**Total**: 157 tests in consensus pipeline, 0 failures

## WSP Compliance Matrix

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

## WSP 97 Verdict

**COMPLIANT**: The Phase 4 aggregation and reporting implementation correctly provides read-only observability over consensus records without:
- Mutating store contents
- Inferring payout readiness
- Inferring DAO activation
- Setting truth fields to True
- Causing state progression

## Recommended Next Slice

**CABR_CONSENSUS_FINALIZATION_PHASE5**: Time-range queries and receipt correlation lookup, including:
- Query records by time range (finalized_at)
- Lookup records by receipt_id correlation
- Batch receipt status summary
- Historical trend analysis (without state inference)
97 changes: 97 additions & 0 deletions modules/communication/moltbot_bridge/ModLog.md
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# ModLog - moltbot_bridge

## 2026-05-13: CABR Consensus Finalization Phase 4 - Aggregation and Reporting (WSP 97)

**Author**: 0102 (Worker W1)
**WSP**: 97 (System Execution Prompting), 91 (Observability)
**Slice**: `CABR_CONSENSUS_FINALIZATION_PHASE4_AGGREGATION_REPORTING`

### Summary

Implemented read-only aggregation and reporting tools for persisted CABRConsensusRecord audit trails. This is Phase 4 of the CABR consensus finalization work, enabling observability and analysis of consensus decisions while maintaining all truth boundaries.

### WSP 97 Critical Constraint

Reporting is observability only. It does NOT mean:
- Automatic state progression
- `verification_complete=True`
- `cabr_ready=True`
- `payout_ready=True`
- Payout approval
- DAO activation
- Token issuance
- External settlement
- Payout readiness inference (high acceptance != payout ready)
- DAO activation inference (high quorum != DAO activation)

### Files Created

| File | Lines | Purpose |
|------|-------|---------|
| `src/cabr_consensus_reporting.py` | ~530 | Read-only aggregation and reporting |
| `tests/test_cabr_consensus_reporting.py` | ~650 | Test coverage (48 tests) |
| `docs/audits/consensus/CABR_CONSENSUS_FINALIZATION_PHASE4_AGGREGATION_REPORTING.md` | ~250 | Audit documentation |

### New API Surface

```python
# Report Generation
def generate_consensus_report(
store: CABRConsensusStore,
limit: Optional[int] = None,
decision_filter: Optional[str] = None,
) -> CABRConsensusReport

# Pure Summarization (no store required)
def summarize_consensus_records(
records: List[Dict[str, Any]]
) -> CABRConsensusReportSummary

# JSON Export (pure string output)
def export_consensus_report_json(
report: CABRConsensusReport,
indent: int = 2,
) -> str

# Convenience Functions
def count_decisions(store, limit=None) -> CABRDecisionCounts
def check_truth_boundary_anomalies(store, limit=None) -> CABRTruthBoundarySummary
def get_records_by_decision(store, decision, limit=None) -> List[Dict]

# Report Dataclasses
@dataclass
class CABRConsensusReport:
records: List[Dict[str, Any]]
summary: CABRConsensusReportSummary
generated_at: datetime
wsp97_compliance_note: str # Embedded compliance reminder

@dataclass
class CABRTruthBoundarySummary:
has_anomaly: bool # True if any truth field is unexpectedly True
anomaly_record_ids: List[str] # Records with anomalies
```

### Reporting Behavior

| Feature | Behavior |
|---------|----------|
| Read-only | No store mutations |
| Deterministic | Sorted keys, sorted anomaly IDs |
| Truth boundary detection | Flags any True value as anomaly |
| WSP 97 note | Embedded in report and JSON output |
| No inference | High counts != payout/DAO readiness |

### Test Results

- `test_cabr_consensus_reporting.py`: 48 passed
- `test_cabr_consensus_finalizer_persistence.py`: 26 passed (no regression)
- `test_cabr_consensus_finalizer.py`: 48 passed (no regression)
- `test_cabr_consensus_store.py`: 35 passed (no regression)

**Total**: 157 consensus pipeline tests, 0 failures

### Recommended Next Slice

`CABR_CONSENSUS_FINALIZATION_PHASE5` - Time-range queries and receipt correlation lookup.

---

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

**Author**: 0102 (Worker W1)
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