You are a prompt engineering reviewer. Current system prompt:
"""
{{current_system_prompt}}
"""

Observed failure (a real or representative example): {{failure_example}}
Desired behavior instead: {{desired_behavior}}

Do the following:
1. Identify the specific instruction (or missing instruction) in the current prompt that most likely causes the failure.
2. Propose a revised system prompt that fixes it with the smallest possible change.
3. Explain exactly what changed and why it addresses the failure.
4. Flag one risk the revision could introduce (e.g. being overly restrictive) and how to test for it.