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

Annotations already establish the safe read-only profile, yet the description still adds genuinely new behavior: the data comes from a read-only OData warehouse refreshed nightly, so today's entries may lag a day. That freshness caveat materially changes how an agent should interpret empty or stale results. It stops short of describing ordering or what a missing approval means.

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?

Front-loaded with purpose and returned fields, then the freshness caveat, then pagination and the endpoint. Every sentence carries information; only the raw GET path is arguably filler for an agent that cannot change it.

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 compensates by listing the returned fields, the nightly-refresh latency, and the pagination loop, which is enough to call the tool correctly. Missing is any note on default ordering or on how 'approval type' values should be interpreted and compared across employees.

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%, so all four parameters and their bounds are already documented, including skip's "pass the previous reply's next_skip". The description's "Page with skip/next_skip" restates that relationship rather than adding new meaning, so it sits at the baseline for a fully documented 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?

The description opens with a specific verb+resource (list pay period/timesheet approvals and sign-offs) and enumerates the returned fields, so an agent knows exactly what comes back. It never distinguishes this from the sibling exaktime_list_timecard_approvals, which is the most likely confusion point.

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?

"Use it to see who has not yet signed off" gives one concrete usage context, which is helpful. But there is no when-not guidance and no routing hint against exaktime_list_timecard_approvals, exaktime_list_pay_periods, or exaktime_list_time_records, leaving the agent to infer which approvals listing it needs.

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