> ## Documentation Index
> Fetch the complete documentation index at: https://developers.kardinal.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Handling infeasibility

> Interpret a no-solution response and diagnose the constraint at fault.

<Note>
  How-to guide — priority P1. Linked to the "Hard vs soft constraints" concept.
</Note>

## To be written

* How to recognize an infeasibility response
* Diagnostic method: which constraint is at fault
* Resolution strategies (relax a constraint, add a vehicle, etc.)
* Link to the conceptual explanation of hard/soft constraints