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

Annotations already indicate read-only, idempotent, non-destructive behavior, and the description adds useful context beyond them: it returns a spoken reply and structured choices, and it does not perform live availability checks or booking. No contradiction with 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?

Two tight sentences front-load the core purpose and then add the output format and boundary. Every clause adds value, with no filler or repetition of schema details.

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 simple browse-style tool with safety annotations and only one required parameter, the description covers purpose, output nature, and key limitations. It does not explain the exact structured-choice format or language parameter, but nothing critical is missing for an agent to invoke it correctly.

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?

With 0% schema description coverage, the description compensates well by mapping 'courts to play at, clubs to join, open play sessions' to the category enum and 'city, state or country' to the location parameter. The language parameter is not described, but its enum values and default make its meaning reasonably inferable.

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?

Description states a specific action ('Offer') and concrete resources ('courts', 'clubs', 'open play sessions') for a location, and it differentiates itself by noting it does not search live availability or join/book. This makes the tool's role clear next to search_myopl_* siblings.

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 clearly frames when to use the tool: to offer courts/clubs/sessions for a named city, state, or country. It also gives explicit exclusions ('does not search live availability or join/book anything'), though it does not name specific sibling alternatives to route to.

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