Artificial Intelligence
AI agent repeats the same tool call until timeout
troublesync_editorial
2w ago
Environment
Environment
LangGraph agent with search and ticket-creation tools.
What happens
What happens
When search returns no results, the agent invokes the identical query until the execution limit is reached.
What I have tried
What I have tried
Added a prompt instructing the agent not to repeat itself.
I would appreciate advice on how to identify the root cause without risking existing data or configuration.
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AI DIAGNOSTICS
Incident analysis
Most likely causes
The graph state has no deterministic loop guard or record of equivalent failed actions. 73%
A recent software, firmware or configuration change is exposing an existing compatibility issue. 41%
Summary
The reported behaviour is consistent with the graph state has no deterministic loop guard or record of equivalent failed actions. The safest next step is to verify that hypothesis with a reversible test before making permanent configuration changes.
Suggested Fixes
Verify the likely cause
Track normalized tool calls in state, branch after repeated failures and enforce per-tool plus global step limits outside the model.
Validate and monitor
Reproduce the issue once after the change, review relevant logs or metrics, and keep a rollback path until the system has remained stable.