Module loop_detection 

Tool-loop detection with tiered escalation.

Three detectors run after each tool call to prevent agents from getting stuck in repetitive loops:

1. Exact repeat — Same tool + same arguments N times in a row.
2. Similarity — Tool calls with high argument similarity over a sliding window.
3. Cost runaway — Token spend exceeds budget threshold.

Structs

LoopDetectionConfig

Configuration for loop detection thresholds.

ToolLoopDetector

Stateful detector that tracks tool calls and checks for loops.

Functions

severity

Severity ordering for LoopAction (higher = more severe).