14 TDD tasks across 4 sections: data integrity (TemporalGuard, SlippageModel), walk-forward robustness (DegradationTracker, NoiseInjector, SensitivityAnalyzer), risk enforcement (RiskAction, RiskEnforcer, GraduatedRecovery, CorrelationMonitor), and E2E integration (pipeline traits, RiskGate, operating modes, DriftResponder, observability). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>