openf1_championship_drivers

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

While annotations already declare readOnlyHint, idempotentHint, and openWorldHint, the description adds value by explicitly stating the return format (top-level array with fields) and noting 'Auth: none needed'. It also clarifies that data covers before/after session states, which is behavioral context beyond the 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, with a clear purpose statement followed by a compact return format example. Every sentence adds value, and it is appropriately front-loaded with the main purpose.

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?

The tool is simple with only three parameters and no output schema, so the description's explicit return fields and auth note largely compensate for missing output schema. It does not cover optional parameter behavior like using 'latest', but the schema already provides that, so this is adequate.

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 description coverage is 100%, so all three parameters already have clear descriptions. The tool description does not repeat parameter details but does mention session_key in the return structure, reinforcing its role. This meets the baseline for high schema coverage with minimal additional semantic value.

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 provides Drivers' championship standings around a race, specifically points and position before/after the session. It also lists the return structure, making the purpose unambiguous. It differentiates from sibling tools like openf1_championship_teams by mentioning 'Drivers'', though it does not explicitly name the alternative.

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 'around a race' hints at context but does not explicitly state when to use this tool versus alternatives such as openf1_session_result or openf1_drivers. There is no mention of exclusions, prerequisites, or specific scenarios where this endpoint is preferred.

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