get_car_telemetry

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

With no annotations, the description must carry behavioral disclosure. It usefully states that samples are downsampled to maxPoints, which adds behavior beyond the schema, but it does not mention read-only nature, permissions, ordering, units, or rate limits.

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?

A single, front-loaded sentence that contains no wasted words. The key resource and constraints are stated immediately.

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 4-parameter tool with no annotations, no output schema, and low schema coverage, the description is minimal but conveys the core return content and one important behavior (downsampling). It still omits units, return structure, and usage context, leaving gaps an agent must infer.

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 only 25% (lapNumber only), so the description should compensate. It adds meaning for the distance range and maxPoints downsampling but does not define fromM/toM individually, their units, defaults, or bounds beyond what the schema already shows.

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 names specific telemetry channels (speed, throttle, brake, gear, RPM) and scopes them to a lap and distance range, making the tool's resource clear. It does not explicitly differentiate itself from siblings like get_lap_times or find_braking_points, so it falls short of a 5.

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?

It says what the tool returns and that it is scoped by distance, but gives no explicit guidance on when to use this tool versus alternatives such as get_lap_times or find_braking_points. No prerequisites or exclusions are stated.

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