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

Annotations already declare readOnlyHint=true, so safety is covered structurally. The description adds the REST mapping (GET /orders), which is useful for an agent reasoning about the underlying API, but it says nothing about pagination, default result count, or ordering of results, which matter for a list tool with a 'max' cap.

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 compact sentences with the core purpose front-loaded and no filler. Every clause contributes either scope or the API reference.

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?

There is no output schema, and the description does not describe the return shape (order fields, pagination, default 'max'). For a read-only two-parameter list tool this is workable but leaves the agent guessing about what comes back and how many results to expect.

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 both parameters ('max' and 'email') are fully documented in the schema and the baseline is 3. The description adds no filtering syntax, date-range hints, or behavior beyond what the schema already states.

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 store orders') and disambiguates what an order is via the parenthetical (product / package / gift-certificate purchases), which separates it from the catalog-oriented acuity_list_products. It does not, however, explicitly contrast itself with the other list_* siblings, so it falls short of a 5.

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?

There is no statement of when to use this tool versus alternatives such as acuity_list_appointments or acuity_list_products, nor any prerequisites. Usage is only implied by the word 'orders'. No explicit exclusions or routing guidance are given.

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