State Corruption

Detects when agent memory or state becomes corrupted, including type drift, schema violations, nullification, and velocity anomalies. Second-highest accuracy detector.

Examples

• Numeric field "price" suddenly contains a string value after processing
• Critical state field value changes to None/null mid-workflow
• Three or more tracked state fields disappear simultaneously
• Field value changes direction 5 times in rapid succession (velocity anomaly)

Detection methods

Schema Validation

Checks state values against expected types and domain bounds

Nested Flattening

Recursively flattens nested structures (e.g., n8n json wrappers)

Velocity Analysis

Detects abnormal rate of state changes

Cross-Field Validation

Ensures relationships between related fields are consistent

Calibration accuracy

From the Pisama calibration set. See detector scoreboard for the full table.