Infinite Loops and Cost Control

• Detect loops by repetition of intent, tool, and arguments.
• Apply budgets per task, user, model, and time window.
• Design circuit breakers that stop the system before disaster strikes.

guardrails:
  max_steps_per_task: 12
  max_tool_calls_per_tool: 4
  max_cost_usd_per_task: 0.80
  max_repeated_fingerprint: 3
  max_runtime_seconds: 300

fingerprint:
  campos:
    - normalized_goal
    - tool_name
    - sorted_args_hash
  si_repite_3_veces:
    parar
    guardar_traza
    pedir_revision_humana

Loop Signals

• The same tool receives nearly identical arguments.
• The agent says "I'm going to check" many times without new evidence.
• Cost increases but the task state doesn't change.
• Errors are recoverable, but the strategy doesn't change.