The system prompt warns about token limits but the agent doesn't get live feedback about remaining budget. The agent may not realize it's approaching limits until it hits a guardrail.
Options: 1. Add a 'check_budget' tool that returns remaining tokens/cost 2. Inject a system message at 50% and 80% budget thresholds 3. Add budget info to tool result messages
This helps the agent pace itself and wrap up gracefully instead of hitting hard limits.