ride_summary

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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description contributes only the word 'local', which faintly suggests on-the-fly computation rather than an asynchronous stats job, but it never explains default time-range behavior when start/end are omitted, output granularity, or result size.

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 with no filler and no redundancy. It is efficient, though the brevity is achieved partly by omitting information that belongs somewhere.

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?

An output schema exists, so return values need not be explained, but the tool takes an undocumented date range and the description omits when to call it versus the stats siblings. For a two-parameter analytics tool the definition leaves essential invocation context missing.

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 0% and the description does not mention start or end at all, so it fails to compensate for the schema gap. An agent cannot learn the expected date format, whether the range is inclusive, or what range is used by default (both params default to null).

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 ('Compute') and resource ('local ride totals'), then enumerates the metrics produced (distance, duration, discounts, monthly trend, averages), which lets an agent distinguish it from siblings like current_ride or list_rides. It is clear but never differentiates itself from the stats-oriented siblings such as prepare_stats or account_month_amount.

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 gives no when-to-use guidance, no prerequisites, and no mention of alternatives, despite several siblings (prepare_stats, stats_job_status, account_month_amount, recharge_month) occupying adjacent statistics territory. An agent has no signal for preferring this tool or for knowing whether start/end should be supplied.

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