lap_summary

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

No annotations are provided, so the description must convey behavioral traits. It discloses that the tool returns a summary with specific metrics, and notably explains the slip balance metric's meaning (positive = understeer, negative = oversteer). However, it does not mention whether the tool is read-only, what happens if lap_id is invalid, or if it triggers side effects.

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, well-structured sentence that front-loads the tool's purpose ('Engineer's summary of one lap') and then lists specific metrics in a clear, comma-separated format. Every element adds value, with the slip balance interpretation parenthetically added for clarity.

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 an output schema (context signals indicate 'Has output schema: true'), the description does not need to explain return format. It covers the key categories of data (time, driving splits, tyre info, corner details, balance metric) comprehensively enough for an engineer to know what to expect. Minor gap: no mention of units or data types, but the output schema likely handles that.

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 has only one parameter (lap_id) with no description, and schema coverage is 0%. The description compensates by not needing to detail lap_id further, as its purpose is obvious (identifies a lap). The description's primary value lies in detailing what the tool returns, which is beyond the schema's scope.

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 returns an engineer's summary of one lap, enumerating specific metrics like lap time, throttle/brake/coast split, tyre pressures, min speed, brake points, and slip balance. It distinguishes itself from sibling tools that list laps (list_laps) or compare laps (compare_laps) by emphasizing a detailed engineering summary of a single lap.

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 implies usage when an engineer needs per-lap details for analysis, but it does not explicitly state when to use this tool versus alternatives like compare_laps or list_laps. No guidance on prerequisites (e.g., lap must exist) or exclusions is provided.

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