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

Annotations already declare readOnlyHint=true, so the safe-read profile is covered structurally. The description adds that results include the related customer and names the underlying endpoint, but says nothing about defaults, result caps, or paging interaction for an 11-parameter query.

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 tight sentences with the purpose front-loaded. The trailing 'Shopmonkey: POST /v3/appointment/search' endpoint notation adds little for an agent choosing a tool, keeping it short of a 5.

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, and the description does supply the key return shape (appointments with their customer), while the schema fully covers filters. The remaining gap, default behavior when no filters are supplied and result paging limits, is minor but real.

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 including skip/limit/sort breathing room is already documented. The description's list of filter dimensions merely restates parameters the schema defines more precisely; baseline 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 ('Search') and resource ('the appointment calendar'), then names the filter dimensions (date range, customer, order, technician) and the return content ('appointments with their customer'). That is enough to separate it from shopmonkey_create_appointment and shopmonkey_search_customers without opening any schema.

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?

The description gives no when-to-use or when-not-to-use guidance relative to siblings such as shopmonkey_list_orders or shopmonkey_search_customers, and no prerequisites or paging advice. Usage is only implied by the word 'Search' and the listed filters.

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