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

Annotations already declare the operation read-only, idempotent, and non-destructive. The description adds useful context such as 'No arguments' and the coverage statement scope, but it does not disclose behavioral details beyond what the annotations and simple return-value list imply. There is no contradiction.

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 compact and front-loaded: it states the purpose first, then the return fields, then the argument requirement. Every sentence adds information and there is no filler.

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?

For a zero-argument read-only tool with an output schema and supportive annotations, the description is complete. It tells the agent exactly when to use it, what it returns, and that no arguments are needed.

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?

The input schema has zero parameters and the description explicitly confirms 'No arguments.' This fully eliminates any parameter ambiguity, so the description earns the baseline of 4 for a parameterless tool.

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's resource ('where the practice is based and where it serves') and enumerates the exact output fields (city, state, country, timezone, coordinates, coverage statement). It is unambiguous about the tool's function, though it does not explicitly contrast itself with siblings like getBusinessInfo or contactUs.

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 phrase 'Use for where the practice is based and where it serves' provides a clear, explicit use case. However, it does not mention when not to use this tool or name alternative sibling tools, so the guidance is context-rich but lacks exclusions.

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