agent-loop-breaker-py
Detect repeated agent steps and stop runaway loops. Pure Python, zero deps. Python port of @mukundakatta/agent-loop-breaker.
pip install agent-loop-breaker-py
from agent_loop_breaker import detect_loop, should_stop
events = [{"tool": "search"}, {"tool": "fetch"}] * 4
res = detect_loop(events, window=2, repeat_threshold=3)
# LoopDetection(looping=True, pattern="search>fetch", count=4)
if should_stop(events):
raise RuntimeError("agent stuck in a loop")
API
detect_loop(events, *, window=4, repeat_threshold=3) -> LoopDetection
Scans events for a repeating window of length window. Returns the first window seen repeat_threshold times or more.
Each event is reduced to a signature via event.get("tool") or event.get("name") or event.get("type") (or str(event) for non-dicts).
should_stop(events, *, window=4, repeat_threshold=3) -> bool
Convenience wrapper returning the looping flag.
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for agent-loop-breaker-py 0.1.0
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