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

Annotations already declare readOnlyHint and destructiveHint, so the description only needs to add context. It names specific return data (dispute win rate, protection statistics, host response times, overall score, narrative summary), which is helpful and goes 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?

The description is two sentences: first states the action and result, second lists return items and usage context. Every sentence earns its place; there is no filler or repetition.

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 single-parameter read-only tool, the description covers purpose, output, and usage guidance. It lacks an explicit distinction from overlapping siblings and does not explain the output format (no output schema), but overall it is sufficiently complete for straightforward invocation.

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 schema already fully describes property_id as 'Property UUID or lilo_code' (100% coverage). The description only says 'specific vacation rental property', adding no additional semantic detail beyond the schema baseline.

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 clearly states it retrieves a reputation score and performance data for a vacation rental, listing specific output elements. However, it does not distinguish itself from sibling tools like 'get_vacation_rental_host_reputation', which may overlap in purpose.

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 provides a concrete use case: 'Use this to evaluate a property's track record before recommending it.' It offers clear context but does not mention alternatives or when not to use the tool, leaving differentiation to the agent.

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