list_available_drivers

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

With no annotations provided, the description must disclose behavioral traits. It states the core action but does not mention whether results are sorted, paginated, or include all driver fields. It also does not clarify what 'available' means or if any implicit filters apply, and no side effects or permissions are mentioned.

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 a single sentence of nine words. It starts with the primary action and resource, then adds the optional filter. There is no wasted wording or repetition.

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 simple listing tool with one optional parameter and no output schema, the description is minimally adequate but lacks detail on result ordering, pagination, response shape, or clarity on what 'available' means. Given the rich sibling set, it could benefit from a brief behavioral note (e.g., 'Returns all active verified drivers' or 'Read-only operation').

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 fully documents the optional location_id parameter with 100% coverage. The description paraphrases the schema ('filter by current location') without adding additional detail such as expected format, matching semantics, or how location nesting works. It meets the baseline of 3, as the schema does the heavy lifting.

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 uses the specific verb 'List' and identifies the resource as 'currently available Verified drivers', which clearly distinguishes it from siblings like get_driver_details (retrieves a single driver) or get_next_driver (selects one for booking). The optional location filter adds additional scope.

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?

No guidance is provided on when to use this tool versus siblings such as get_next_driver, get_driver_details, or get_hotel_preferred_drivers. The description does not mention exclusions, prerequisites, or alternative tools, leaving the agent to infer appropriate usage.

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