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Making Agentic Tool Usage 91% More Efficient: With JSON Response Filtering
Artificial Intelligence   Latest   Machine Learning

Making Agentic Tool Usage 91% More Efficient: With JSON Response Filtering

Last Updated on November 25, 2025 by Editorial Team

Author(s): AI Rabbit

Originally published on Towards AI.

Making Agentic Tool Usage 91% More Efficient: With JSON Response Filtering

Agentic systems call tools. Those tools return giant JSON blobs designed for booking engines, dashboards, or backend services — not for LLMs. The model usually needs a few fields; it still has to read everything.

Making Agentic Tool Usage 91% More Efficient: With JSON Response Filtering

This describes a beta proof-of-concept: let the model say exactly which JSON fields it wants (via JSONPath), filter the tool response on the client, and only send the trimmed result into the model.

The article discusses the inefficiencies inherent in traditional flight search APIs when utilized by agents, with an emphasis on the excessive data returned that is typically unnecessary for specific queries. It proposes a solution involving client-side dynamic response filtering using JSONPath to allow agents to specify needed data fields. This approach minimizes token usage and improves efficiency, enabling agents to focus on the relevant information while maintaining the integrity of upstream APIs and tools.

Read the full blog for free on Medium.

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