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

With no annotations, the description carries the full behavioral burden. "Live availability" usefully signals a real-time, non-cached read, but the description says nothing about whether the operation is side-effect free, whether it hits rate limits, or what happens for invalid or unavailable date ranges.

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. The scope qualifier (property, date range) is placed immediately, so an agent can act on it without further reading.

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?

The tool is simple, all three parameters are fully documented in the schema, and an output schema exists so return values need not be described. However, with zero annotations the description should at least clarify how this differs from the quote/property siblings, and it does not.

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 already defines property, check_in, and check_out with formats and examples. The description only adds the notion of a date range spanning the two dates, which is a marginal gain over structured data; baseline 3 applies.

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?

States a specific verb (check) and resource (availability) scoped to a property and date range, which is clearly distinct from get_quote, get_property_details, and search_properties. It does not, however, explicitly contrast itself with those siblings, so an agent must infer the boundary on its own.

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 guidance and no mention of alternatives such as get_quote or search_properties. The word "live" hints at a real-time query rather than cached inventory, but nothing tells the agent under what conditions this tool should be chosen over its siblings.

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