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

readOnlyHint and openWorldHint already declare the safe-read profile, so the description only needs to add context. It does add that the response bundles calendar events scoped to the two dates, but says nothing about pagination, limits, or what happens with an unknown id.

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?

One sentence with no filler, front-loaded with the verb and resource. It is terse to the point of leaving the date-scoping of the events slightly ambiguous, but nothing 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?

A simple three-parameter read tool with no output schema; the description conveys that the return is a single policy plus its calendar events restricted to the given window, which is the essential shape. Minor gap around whether the dates filter the policy itself or only its events.

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 documents id, start_at and end_at. The phrase "between two dates" reinforces the start/end pairing but adds no format or edge-case detail beyond the schema's yyyy-mm-dd note.

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 ("Get one holiday policy") and adds that calendar events are included and filtered by a date range, which distinguishes it from the plain list tools. It doesn't explicitly name talenox_list_holiday_policies, so the sibling separation relies on the word "one".

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?

No statement of when to use this versus talenox_list_holiday_policies or talenox_list_company_holidays, and no prerequisites or exclusions. The date-range mention implies filtering but is not framed as usage guidance.

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