recommend_ridepass

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The phrase 'with stated conservative assumptions' hints at the comparison methodology but never explains what those assumptions are, what period is analyzed, or how costs are computed, so it adds only modest value beyond the annotations.

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 or repetition. It is efficient, though arguably too terse for a tool whose schema carries no field-level documentation.

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 described. But with 0% parameter coverage and no explanation of the 'conservative assumptions,' scope of rides considered, or time-window behavior, the agent lacks enough context to call this tool confidently.

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 any parameter. 'Current city' loosely implies city_id, but the meaning and accepted format of start/end (optional, nullable strings) are unexplained in both schema and description, leaving the agent to guess at the time-window semantics.

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 gives a concrete verb and two resources ('Compare current city RidePasses against observed rides'), which tells the agent this is an analysis/comparison tool rather than a lookup. However, it never distinguishes itself from plausible siblings like pass_catalogue, owned_passes, or ride_summary, and the actual deliverable (a recommendation, per the name) is only implied.

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?

There is no when-to-use statement, no prerequisites, and no named alternative among the 19 sibling tools, several of which (pass_catalogue, owned_passes) overlap in subject matter. The agent is left to infer the calling context entirely.

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