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

Annotations already establish readOnlyHint=true and destructiveHint=false, so safety is covered. The description adds value beyond them by disclosing an authorization requirement (owner sign-in) and enumerating the categories of data returned, which matters given there is no output schema. It still omits format, size, or fallback behavior for a day with no activity.

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?

Two short sentences, front-loaded with the data scope and followed by the prerequisite; no filler. The telegraphic noun-list style is efficient but slightly cryptic ('the house', 'in house') for an agent unfamiliar with the domain vocabulary.

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 read-only, single-parameter, non-destructive report with no output schema, the description covers what is returned and the auth requirement, which is enough to call it correctly. Only ambiguity around 'house' meaning the property and the absence of a contrast with 'availability' keep it from a 5.

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 100% and the single 'date' parameter already documents its YYYY-MM-DD pattern and 'default today' behavior. The phrase 'for one day' vaguely implies the date scoping but adds no syntax or interpretation beyond the schema, so the 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?

The description names the exact content the tool returns: arrivals, departures, in house, rooms by housekeeping status, and rooms out of order, all scoped to a single day. That is a specific resource snapshot rather than a restatement of the name. It does not, however, distinguish this from siblings such as 'availability' or 'stays', so an agent must infer the boundary.

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?

'For one day' implies the temporal scope and 'Needs the owner's sign-in' states an auth prerequisite. There is no explicit when-to-use guidance and no mention of when to prefer 'availability' or 'stays' instead, leaving the choice to inference from sibling names.

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