get_fantasy_pit_times

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

With no annotations present the description carries the full burden, and it delivers the two things an agent most needs: the access-tier requirement (Developer or higher) and the precise semantics of the returned value (stationary seconds stopped in the box, not total pit-lane time). It does not state sort order, result size, or whether stops are grouped per driver, which keeps it short of a 5.

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?

Two tight sentences: the payload-defining clause comes first, the access requirement second, and nothing is repeated. Every phrase earns its place, including the parenthetical clarifying what 'stationary time' means.

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?

There is no output schema, so the description must sketch the return shape, and it does ('per stop, with driver code and team', measured in seconds). It stops short of covering ordering, coverage (all drivers vs. stops only), and how this differs from get_race_pitstops, which leaves a small but real gap.

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?

Only one parameter and schema coverage is 100%, with the schema itself pointing at list_events as the source of sessionId. The description adds no format, constraint, or example beyond that, so the baseline 3 applies.

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?

States a specific verb and resource ('get the pit-stop time leaderboard for a session') and pins down the exact metric measured ('stationary time (seconds stopped in the box) per stop') plus the returned fields. It never distinguishes itself from the close sibling get_race_pitstops, so an agent must infer the difference from the name alone.

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 supplies a real prerequisite ('Requires Developer or higher') but gives no explicit when-to-use guidance and no routing to or away from get_race_pitstops, which is the obvious alternative for pit-stop data. Usage is implied by the word 'leaderboard' rather than stated.

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