openf1_drivers

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

No annotations are provided, so the description carries full burden. It discloses the return format (array of objects with specified fields) and the optional nature of parameters, but it fails to mention behavioral traits like pagination, rate limits, or what happens if no drivers exist. The tool appears read-only, but that is not explicitly stated.

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 very concise (two sentences), front-loading the purpose and return format. However, it omits necessary detail about the other parameters, which slightly reduces its efficiency. Nonetheless, it is well-structured for a simple tool.

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 the tool has 5 optional parameters and no output schema, the description should provide more complete guidance. It only addresses one parameter (session_key) and partially lists the output fields. The description is insufficient for an agent to correctly invoke the tool with optional filters.

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 lists 5 parameters (team_name, meeting_key, session_key, name_acronym, driver_number) all optional, but the description only explains session_key. The other 4 parameters are left completely unexplained, despite 0% schema description coverage. The description adds very little meaning beyond the schema and fails to help an agent understand how to filter or use these parameters.

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 'Drivers entered in a session' and lists the returned fields (number, name, acronym, team, colours). It specifies the primary input (session_key or 'latest'), making the tool's verb and resource clear. It is distinct from sibling OpenF1 tools like openf1_car_data or openf1_laps.

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 includes the key usage instruction 'Pass session_key (or 'latest')', which guides the user on the primary parameter. However, it does not mention when to use this tool versus other OpenF1 tools (e.g., openf1_sessions), nor does it provide exclusions or alternative tool suggestions.

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