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

The annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so 'Read-only' merely restates structured data. The genuinely additive behavioral detail is that the response carries counts and enumerates the valid downstream filter values, but return shape and any scoping limits beyond North Goa are not elaborated.

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?

Three short sentences, front-loaded with what the tool returns, followed by the sequencing instruction. Nothing is wasted, though the trailing 'Read-only' is redundant with the annotations.

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?

With an output schema present, the description needn't explain return values, and the call-first guidance covers the main integration concern. It is close to complete for a zero-parameter discovery tool; only the meaning of the counts (e.g., total listings per area) is left implicit.

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?

The tool takes no parameters, so the baseline is 4. The description nevertheless adds useful semantics by clarifying that the values this tool exposes (`location`, `type`) are the exact fields other tools consume.

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 the exact resource returned: areas of North Goa with listings plus property types, each with counts. That distinguishes it from siblings like search_properties and get_property, though the phrasing 'Areas of North Goa we have places in' is grammatically clumsy rather than a crisp verb+resource statement.

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 gives an explicit ordering directive — 'Call it first to learn valid `location` and `type` values' — which tells the agent exactly when this tool is the right choice ahead of the search tool. It stops short of naming the alternative tools or stating when not to call it.

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