Module guard 

Loop guard / circuit breaker for the fighter loop.

Detects repetitive tool call patterns, ping-pong cycles, and enforces maximum iteration limits to prevent runaway agent loops.

Graduated Response

The guard uses a graduated response model:

• Allow: Normal operation
• Warn: Log a warning but allow the call (threshold: 3 identical calls)
• Block: Block this specific call (threshold: 5 identical calls)
• CircuitBreak: Terminate the entire loop (threshold: 30 total iterations)

Structs

GuardConfig

Configuration for the loop guard thresholds.

LoopGuard

Circuit breaker that watches for repetitive tool call patterns and enforces a maximum iteration count.

Enums

GuardVerdict

Graduated response level from the guard.

LoopGuardVerdict

Legacy verdict type for backward compatibility with the fighter loop.