An agent picks the wrong overlapping tool: how do you clarify tool selection?

Fix a misselection example and identify the intended resource

This applies when search tools cover different resources but the model chooses the wrong service, or when read-only and write tools have similar names. Save a concrete failure and identify the needed data type. If two tools are equivalent implementations, allow reasonable alternatives instead of treating a single fixed call sequence as the quality standard.

Compare purpose boundaries and obsolete definitions

Compare purposes, parameter definitions and returned content to identify distinctions relevant to users. Check for obsolete tools or namespaces that hide service ownership. Examples using the same input pattern for every tool can conceal object differences. Repeatedly asking the model to choose carefully does not supply missing definitions.

Organize tools by resource and reduce duplicate exposure

Name tools by service or resource type and state their scope and unsuitable tasks. When combining frequent consecutive read-only lookups, preserve relevant context without creating an unlimited all-purpose interface. Compare changes on the same task set, then remove unnecessary duplicate exposure incrementally.

Evaluate correct outcomes across reasonable call paths

Evaluate final task correctness while recording misselected tools and ineffective calls. Tasks with multiple reasonable paths need not match the reviewer’s exact sequence, but the returned data must concern the intended object. Test unfamiliar wording as well, so descriptions do not work only for a fixed keyword while ordinary requests still reach the wrong service.

Tool selection depends on the model and task distribution; no naming convention is universally optimal. This article did not measure an accuracy gain or remove existing services. Clear names do not replace authorization for actions with different permissions. Do not broaden resource access simply to reduce selection mistakes.