Module degradation_cascade 

Degradation cascade: conformal guard → budget controller → widget priority.

Orchestrates the flow from conformal frame guard risk detection through budget degradation to widget-level rendering decisions. Tracks recovery and emits structured evidence at each decision point.

Cascade Flow

┌─────────────────────┐
│ ConformalFrameGuard  │  p99 exceeds budget?
└─────────┬───────────┘
          │ yes
          ▼
┌─────────────────────┐
│   Budget Degrade     │  next degradation level
└─────────┬───────────┘
          │
          ▼
┌─────────────────────┐
│ Widget Filter        │  skip non-essential at EssentialOnly+
└─────────────────────┘

Recovery: N consecutive within-budget frames → upgrade one level

Evidence

Every cascade decision emits a JSONL evidence entry with:

• Guard state and prediction
• Degradation level transition
• Recovery progress
• Nonconformity summary

Structs

CascadeConfig

Configuration for the degradation cascade.

CascadeEvidence

Evidence record emitted for each cascade decision.

CascadeTelemetry

Telemetry snapshot of the cascade.

DegradationCascade

Degradation cascade orchestrator.

PreRenderResult

Result of a pre-render cascade check.

Enums

CascadeDecision

Decision made by the cascade for a single frame.