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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds genuinely useful context beyond that: sort order (newest first), the payload contents, and the fact that calls are free. It says nothing about pagination behavior or how many records come back.

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?

A single front-loaded sentence that defines the resource first and enumerates the return contents. Efficient with no filler; the trailing 'Free' is slightly abrupt but carries real information.

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 no output schema, the description covers what is returned, ordering, and cost, which is a reasonable baseline. However, with 3 filter parameters and only partial schema documentation, the agent lacks enough to know how 'form' scoping or 'person' affects results, or how to page through data.

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?

The description never mentions any of the three parameters. Schema coverage is 67%: 'form' and 'person' are documented in the schema, but 'limit' has no description beyond default/min/max bounds. With coverage below 80%, the description was expected to compensate for the undocumented limit semantics and did not.

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+resource pair (listing routing-form answers) and adds scope detail: answers, their destination, and the resulting booking, ordered newest first. It does not explicitly distinguish itself from siblings like calendar_list_routing_forms (the forms themselves) or forms_list_responses (non-routing form answers), so the agent must infer the boundary.

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 when-to-use guidance and no named alternative. 'Free' hints that this costs no credits, but nothing tells the agent when to pick this over calendar_list_routing_forms or forms_list_responses, nor any prerequisites for reading answers.

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