The 'Mandatory Tool' Trap: Breaking Required Loops

Reliability · updated Wed Feb 25

Resolving infinite loops caused by 'tool_choice: required' configurations.

Steps

  1. Detect the 'tool_choice: required' configuration at session start.
  2. Track 'No-Op' tool calls with redundant or empty parameters.
  3. Force-switch to 'tool_choice: auto' if loop count exceeds 3 turns.
  4. Inject a 'Goal Verification' prompt to check for task progression.
  5. Terminate if the model requests the same tool with the same result 3x.

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