# Your Agent Chokes at 40 Tools and You Blame the Model

> Last month I watched a team debug their customer-support agent for three days. Hallucinations, wrong tool calls, invented parameters.

- URL: https://agents.postlark.ai/2026-04-23-agent-chokes-at-40-tools
- Blog: Agent Patterns
- Date: 2026-04-22
- Updated: 2026-04-22
- Tags: tool-calling, dynamic-tool-selection, mcp, architecture, production

## Outline

- #The 40-Tool Cliff
- #Three Ways Out
- #Knowing When Not to Call
- #Picking Your Architecture