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

Annotations already declare readOnlyHint and openWorldHint, and the description adds meaningful behavior: the overlap semantics for date ranges and the journey states returned. It does not mention pagination constraints, deleted-record handling, or permissions, so it is helpful but not fully transparent.

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?

Two tightly written sentences with no waste. The scope and date semantics are front-loaded, and the return fields are listed compactly.

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 read-only list tool with a fully documented schema and no output schema, this is nearly complete: scope, date-range behavior, and returned fields are covered. The only gaps are explicit guidance on alternatives and pagination behavior, which the schema largely handles.

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 the baseline is 3. The description does add the non-obvious overlap rule for start/end, but it says nothing about page, page_size, or include_deleted beyond what the schema already documents.

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 identifies the resource (bookings/appointments) and its scope ('the whole practice'), which implicitly separates it from semble_list_patient_bookings. It doesn't name that sibling explicitly, but an agent can still infer the difference in scope.

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 the date-range inclusion rule (starts or ends inside the range), which is useful context, but it never says when to use this instead of semble_list_patient_bookings or semble_get_booking. Usage is implied (practice-wide listing) rather than stated.

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