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

No annotations are provided, so the description carries the full behavioral burden. It does disclose the return contents and the 93-day range limit, but says nothing about what happens when the range is exceeded, whether unavailable nights are omitted or flagged, auth requirements, or rate limits.

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 resource, the returned fields, and the range constraint are all packed in without redundancy.

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 three-parameter read tool with no output schema, the description covers what is returned and the range cap. It is nearly complete, though edge-case behavior (over-93-day requests, invalid slug) is not addressed.

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 coverage is 67%: 'from' and 'to' are only labeled 'YYYY-MM-DD' and 'slug' has no description at all. The description adds genuine meaning by capping the from/to window at 93 days and implying slug identifies a single stay, but it does not compensate for the undocumented slug semantics.

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 and resource (day-by-day availability) plus the returned fields (nightly price, minimum stay) and a hard scope (one stay, up to 93 days). The 'one stay' framing implicitly separates it from the bulk search_stays, but no sibling is named explicitly, so differentiation is inferred rather than stated.

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?

Usage is implied: call this when you need daily prices/availability for a specific stay over a bounded window. The 'up to 93 days' cap gives an implicit limit on the date range, but there is no explicit when-to-use versus get_stay/search_stays, and no stated prerequisites.

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