Time off

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

Annotations already declare readOnly, idempotent, non-destructive, open-world behavior, so the safety profile is covered. The description adds that results are per staff member and carry reason codes, which is useful content-level context, but it says nothing about the caching behavior implied by the 'fresh' flag or about result size/pagination.

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 tight sentence with the scope front-loaded and no filler. It is arguably under-specified rather than verbose, but nothing in it is wasted.

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 no output schema, the description carries the burden of describing returns; it does say results are one entry per staff member with reason codes, which is a partial answer. It omits the effect of the 'fresh' parameter and any indication of result volume, so an agent cannot fully predict behavior.

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 'from', 'to', and 'fresh' are already documented, including the date pattern. The description only restates the date-range concept and does not mention the 'fresh' cache-bypass parameter at all, adding no meaning beyond the schema.

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?

Names the resource precisely ('time off of each staff member'), the scope ('between two dates'), and an included field ('reason codes'). The verb is only implied (list/retrieve) and nothing distinguishes it from calendar_agenda or staff_schedule, which an agent could plausibly pick instead.

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 statement of when to use this tool versus calendar_agenda, staff_schedule, or time_block_details, and no prerequisites or exclusions. The date-range phrasing implies a reporting/listing query but leaves all routing to the agent.

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