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

Annotations already cover the safety profile (readOnlyHint=true, destructiveHint=false), so the description only needs to add context beyond that. It adds 'current public information' and 'official Seamgrin page,' which gives useful behavioral context about freshness and provenance, though it doesn't mention rate limits or any other quirks.

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 short sentences, with the usage condition front-loaded and the return behavior stated immediately. No filler or repetition of schemas or annotations.

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?

This is a simple zero-parameter, read-only lookup with an output schema present. The description fully covers when to use it and what it returns; nothing essential is missing for an agent to invoke it correctly.

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 tool has zero parameters, so there is nothing for the description to explain beyond the schema. The baseline of 4 applies because no parameter semantics are needed at all.

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 names a specific verb ('Returns') and resource (clothing alteration options including hemming, resizing, and repairs), and explicitly scopes it to the official Seamgrin page. It is clearly distinguishable from siblings focused on tailor training, opportunities, waitlists, and interest registration.

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 gives an explicit when-to-use condition: 'Use when someone is looking for convenient clothing alterations, hemming, resizing, or repairs.' It does not list exclusions or alternatives, but the context is clear enough given the sibling set.

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