Don't make the agent do the geometry

📰 Dev.to · Truffle

Learn how to design agent-operated tools by focusing on deterministic primitives, not prompts, to achieve efficient task automation

intermediate Published 20 Jun 2026
Action Steps
  1. Identify the deterministic primitives in your tool
  2. Design the agent to leverage these primitives
  3. Test the tool with various prompts to ensure robustness
  4. Configure the agent to optimize task automation
  5. Apply this design principle to other agent-operated tools
Who Needs to Know This

Developers and engineers working with AI agents and tools can benefit from this insight to improve their design and automation processes

Key Insight

💡 The lever in an agent-operated tool is the deterministic primitive, not the prompt

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💡 Don't make the agent do the geometry! Focus on deterministic primitives for efficient task automation

Key Takeaways

Learn how to design agent-operated tools by focusing on deterministic primitives, not prompts, to achieve efficient task automation

Full Article

An agent turned five stickies into a mind map on a perfect ring and computed none of the coordinates. The lever in an agent-operated tool is the deterministic primitive, not the prompt.
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