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

Annotations already declare readOnlyHint=true and destructiveHint=false, so safety is covered. The description adds useful transparency by enumerating the returned service fields and noting pagination via `next`, which matters because there is no output schema. It could say more about filtering, but the core behavior is clear.

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?

The description is compact and front-loaded: purpose, returned fields, pagination hint, and endpoint. Every part is relevant, though the raw GET endpoint is slightly redundant.

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 simple read-only list tool with full schema coverage and annotations, the description covers purpose, returned data, and pagination sufficiently. It does not mention the `ids` filter or default page size, but those are clearly documented in the schema.

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 fully documents the cursor, ids, and limit parameters. The description only repeats the pagination concept with `next` and does not add format or filtering details beyond the schema; baseline 3 is appropriate.

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 states a specific verb and resource ("List services") and clarifies what a service represents ("what can be booked") along with the fields returned (name, category, durations, prices, buffers, occupancy, booking type). It is clear without needing the schema, but it does not explicitly distinguish itself from the single-service sibling `appointedd_get_service`.

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?

Listing is implied by the verb and endpoint, but there is no explicit guidance on when to use this versus `appointedd_get_service` or `appointedd_list_service_categories`. No exclusions or prerequisites are stated.

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