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

With no annotations available, the description carries the full burden. It discloses the key behavioral trait of anonymity ('Works anonymously') and explains the email condition for a reply. This goes beyond the schema by setting user expectations about privacy. A minor gap is the lack of any statement about what happens after submission (e.g., confirmation, ticket ID), but overall the essential behavior is transparent.

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 exactly two sentences, front-loaded with the action verb 'File' and clear subject matter. Every clause adds value: the first states the purpose and scope, the second explains anonymity and reply conditions. No wasted words or redundant elaboration.

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 feedback tool with full schema coverage and no output schema, the description covers the core purpose, acceptable content, and a key behavioral constraint. It doesn't describe the return value, but since no output schema is declared and the action is simple, this is a minor omission. The slight dual phrasing 'feedback or support ticket' could be seen as ambiguous but does not impair usability.

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 already provides 100% parameter coverage, with detailed descriptions for email (optional, default to account email), message (plain text, max 5000 characters), and category (enum with default). The description adds only a restatement of the email-reply connection, which does not meaningfully extend the schema's clarity. Baseline 3 is appropriate.

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 the specific verb 'File' with a clear resource ('feedback or a support ticket' with SPACEXPLORATION team) and enumerates acceptable content types (bug report, feature request, question, anything to improve). This clearly distinguishes send_feedback from sibling tools like search_listings or create_listing, which are all listing-related operations.

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 clearly implies when to use the tool by listing the kinds of feedback that belong (bug, feature request, question, or any improvement). There are no alternative feedback tools among the siblings, so no explicit 'when-not-to-use' guidance is needed. The context is clear and immediately actionable.

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