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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safe-read profile and network dependence are covered. The description adds one genuinely useful behavioral note — the storefront URL is fixed server-side, so callers cannot target another domain — but gives no detail on return shape or record size. With annotations carrying the safety profile, this is a reasonable 3.

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, front-loaded with the core action, and zero filler. The sibling pointer is placed after the primary purpose, which is the correct ordering.

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?

An output schema exists so return values needn't be described, and annotations cover the safety profile. For a single-parameter read tool the definition supplies purpose, the fixed-URL constraint, and the sibling route to discovery, leaving little that an agent must guess.

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% and the only parameter (handle) is fully documented as 'Required. Static page handle (URL slug)'. The description only echoes this with 'page handle', adding no syntax or format detail, so the baseline of 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?

States a specific verb (Fetch) and resource (static-page details for one Fashionphile page handle), and explicitly differentiates from the sibling fashionphile_pages which lists records. An agent can distinguish the single-record fetch from the list tool without opening either schema.

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?

Names the alternative explicitly ('Use fashionphile_pages to list available page records'), giving clear context for when the list tool applies. It doesn't spell out a when-not condition for this tool, but the single-handle scope is unambiguous.

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