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

Annotations already declare openWorldHint=true and destructiveHint=false, so the description's marginal value is the auth note: it works with any authenticated credentials including read-only API keys, which an agent might otherwise assume blocks a write-style call. It does not mention rate limits or what happens to the feedback afterward, keeping it below a 5.

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 sentences, zero filler. The purpose and accepted content types come first, the usage trigger second, and the auth constraint last — a sensible front-loaded order.

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?

With no output schema, the description needn't explain return values, and all four parameters are fully documented in the schema. Coverage is nearly complete; only a hint about confirmation or follow-up after submission is absent, which is minor for a fire-and-forget feedback call.

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%: the enum values, the 2000-char truncation, and the credential verification of run_id/website_id are all documented in the schema. The description restates the categories rather than adding syntax or format detail, so the baseline 3 applies.

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 destination ('Send feedback to the squirrelscan team') and enumerates the concrete content types accepted (bug, missing feature, confusing, missing report data, ergonomics). No sibling tool covers feedback submission, so it is trivially distinguishable from add_website, comment_on_issue, etc.

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?

Explicitly says when to use it ('when the user wants to report something or share their experience'), which is a clear trigger condition. It stops short of stating when not to use it (e.g. use comment_on_issue for issue-scoped discussion), so it is strong but not fully routive.

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