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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint false. The description adds useful behavioral details: returns street address, coordinates, DMV website, and covers all 9 locations. No contradiction with annotations.

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 yet comprehensive, with the main purpose stated first followed by examples and scope. Every sentence adds value without redundancy.

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?

Despite no output schema, the description clearly states what is returned (street address, coordinates, DMV website). It also addresses specific query patterns, making it complete for a location-lookup tool.

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?

Input schema covers all 3 parameters with descriptions (100% coverage). The description adds value by providing examples of how parameter values are used (e.g., 'Georgetown' as a name, 'service center' as office_type), which helps the agent select appropriate values.

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 finds DC DMV locations, lists services (license renewal, vehicle registration, REAL ID, inspection stations, road test, CDL, adjudication), and provides examples of queries it can answer. It effectively distinguishes itself from sibling tools like dc_dmv_convictions and dc_dmv_vehicle_inspections.

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 provides example queries that illustrate when to use the tool (e.g., 'DC DMV near Georgetown', 'where is the DC vehicle inspection station'). It also states it covers all 9 published DMV locations, setting clear scope. However, it does not explicitly mention when not to use or suggest alternatives.

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