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

Annotations already declare readOnlyHint and destructiveHint=false, so safety is covered. The description adds real behavioral context: the return shape ({ count, next_skip, items }), the pagination flow ('pass next_skip as skip'), the single-record read mode, and the backing endpoint GET /scheduler.

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 the resource, then return shape, pagination, read mode, and filtering in tight telegraphic sentences. Dense but every clause carries information; minor loss of readability from the fragment style.

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?

No output schema exists, but the description supplies the response envelope and pagination mechanics, and annotations cover the safety profile. For a 6-param, all-optional list tool this is nearly complete, missing only explicit alternative-routing guidance.

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%, establishing the baseline of 3, but the description adds genuine value beyond it: the id-as-read-single-record behavior and the pagination linkage between next_skip and skip are semantics not obvious from raw parameter docs.

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 resource ('Scheduling pages (booking links) and their settings') and the operation is clear from the name/description. The resource is distinct from all siblings, so an agent can tell it apart, though it never names an alternative tool by name.

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?

It explains two modes (list vs. 'Pass id to read one record') and two filtering mechanisms, which implies when to use each. However, it does not say when to prefer this over any sibling or state preconditions, leaving routing largely to inference.

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