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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds valuable context about the return content (field values and timestamps), which the annotations do not convey. This goes beyond the structured data.

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?

The description is a single, front-loaded sentence that states the action, resource, and scope without unnecessary detail. Every word earns its place.

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 simple read-only listing tool with complete parameter schema and solid annotations, the description provides a clear picture of what it returns (field values, timestamps) and covers the essential context. It could be slightly richer by mentioning pagination behavior, but the schema already covers pagination parameters, so this is adequate.

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 input schema has 100% description coverage, so the baseline applies. The description does not add syntax or format details beyond the schema, but it does clarify that 'form_id' refers to a signup form and that results will include field values and timestamps, which indirectly relates to the 'form_id' and response semantics.

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 uses a specific verb ('List') and resource ('submissions for a signup form'), and adds what is included ('submitted field values and timestamps'). This clearly distinguishes it from sibling tools like get_form or list_forms.

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 context implies this tool is used when you need submissions for a signup form, but there is no explicit mention of when to use it over alternatives or when not to use it. Since it's a unique function among siblings, the guidance is implicit rather than explicit.

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