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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false, so safety is covered. The description adds no behavioral context of its own — no search radius, no default for limit, no sorting or distance behavior — leaving the geo-lookup semantics undisclosed.

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 short sentence with no bloat, but roughly half its content is origin lore (Ōtsuchi, Japan) rather than operational information. It is succinct without being informative.

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?

Parameter count is tiny (3, none required) with full schema coverage, annotations cover the safety profile, and there is no output schema to explain. The remaining gaps are the search radius and default limit, which matter but are minor given how simple the tool is.

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 100%, so the schema documents lat, lon, and limit adequately, establishing the baseline of 3. The description contributes nothing beyond that — it never connects the coordinates to a proximity search or explains what limit counts.

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 identifies a resource (Wind Phone booths around Tampa Bay) and explains what they are, but never states the operation — presumably a proximity lookup — or what comes back. An agent knows the subject matter but not the action, which is the minimum viable level.

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?

No guidance on when to call this versus siblings like find_places or story_trails, and no note on prerequisites such as supplying coordinates. The only context is thematic ('call someone you lost'), which is not usage guidance.

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