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

Annotations already declare readOnlyHint=true, so the safety profile is covered. The description adds which fields come back and the underlying API path, but says nothing about pagination defaults, rate limits, or result truncation behavior despite 10 parameters and no output schema.

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 sentences, front-loaded with the purpose and the returned fields. The trailing 'Momence: GET /api/v2/host/appointments/reservations' line is arguably redundant for an agent caller, but it costs little and identifies the endpoint.

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 10-parameter, zero-required list tool with no output schema, the description helpfully names the returned fields but omits pagination behavior and how the many date/paid filters interact. Adequate but with clear gaps for an agent that must page results.

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 every parameter (page, pageSize, isPaid, date bounds, sortOrder, includeCancelled, includeCancelledAttendees) is already documented in the schema. The description adds no filtering syntax or constraints beyond that, so the baseline of 3 applies.

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 ('List all appointment reservations across the studio') and enumerates the data returned (service, teacher, time, price, paid state, attendees). The scope word 'across the studio' implicitly distinguishes it from the member-scoped sibling momence_list_member_appointments, though the sibling is never named.

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?

Usage is only implied by the studio-wide scope; there is no explicit when-to-use statement, no exclusion of includeCancelled semantics, and no routing guidance versus momence_list_member_appointments or momence_list_session_bookings. An agent must infer the choice from scope alone.

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