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

Annotations already declare destructiveHint=true, openWorldHint=true, and non-idempotent, so the safety profile is covered. The description adds that the verified email identifies the request and receives replies, a useful routing detail, but omits the fact that submission is irreversible and external, which the annotations imply but the text doesn't reinforce.

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 request types and the identity/reply behavior front-loaded. No wasted text, though it is minimal for a tool with an irreversible side effect.

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?

Output schema exists so return values need not be explained. The description covers the request types and identity mechanism but is thin on irreversibility and the external-facing nature of feedback submission; adequate but with a notable gap for a destructive, open-world tool.

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 (body, title) are already documented in the schema. The description adds no format, length, or content guidance beyond what the schema provides; baseline 3 is correct when schema does the heavy lifting.

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 (send feedback to Cherami) and enumerates the three request types. It's clearly distinguishable from mail siblings like send_message, though the description doesn't explicitly note that distinction.

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 enumeration of request types (problem report, suggestion, allowance-increase) implies when this tool is appropriate, but there is no explicit when-to-use vs. sibling guidance and no when-not-to-use boundaries.

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