configure_ranges

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description indicates mutation (customize) but adds limited behavioral context beyond the destructiveHint annotation; it could disclose impacts on previous settings or persistence.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise (two sentences) and front-loads the primary action, with no superfluous information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given simple parameters and existing annotations, the description adequately explains the tool's purpose and context, though it could clarify the effect on calculations.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema provides full parameter descriptions; the description adds context about standard ranges and healthcare provider recommendations but no new parameter details.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool customizes the target glucose range for time-in-range calculations, distinguishing it from sibling tools like 'configure_credentials'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies when to use (to set a custom range) but does not explicitly state exclusions or alternatives, relying on the sibling context for differentiation.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.