openf1_laps

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

Annotations already declare readOnlyHint, openWorldHint, and idempotentHint, and the description adds valuable context: the exact return shape (top-level array with field list), the 'Auth: none needed' note, and the pit-out flag. This goes beyond what annotations alone provide, without contradicting them.

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: first sentence states the purpose, second provides return fields, third handles auth. No filler or redundant content; every sentence earns its place.

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 read-only data retrieval tool with no output schema, the description provides a complete field list and auth requirement, which gives the agent a solid mental model. It could be more explicit about whether results include all drivers when driver_number is omitted, and the exact format of segment colours, but overall it is sufficiently complete for a simple read 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?

Schema description coverage is 100%, so each parameter (lap_number, meeting_key, session_key, driver_number) is already documented. The description's mention of 'for a driver' reinforces the driver_number parameter but does not add new parameter syntax or format details beyond the schema. Baseline 3 is appropriate.

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 states the exact resource ('Per-lap timing for a driver') and enumerates the specific data fields returned (lap/sector durations, speed-trap speeds, segment colours, pit-out flag). This clearly distinguishes it from sibling F1 tools like openf1_pit or jolpicaf1_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?

Usage is implied by the purpose ('per-lap timing for a driver'), and the schema notes driver_number is 'strongly recommended.' However, there is no explicit when-to-use guidance, alternatives named, or exclusion such as 'for pit stops use openf1_pit.' It relies on the agent inferring context from the name and description.

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