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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=true, so safety is covered structurally. The description adds non-obvious behavior the annotations cannot convey: a feature-gating prerequisite and the concrete failure mode (HTTP 406), which lets an agent anticipate and interpret errors.

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 no filler: resource and payload first, then the blocking precondition. Every clause earns its place, and the constraint is front-loaded enough to be seen before the call.

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 zero-parameter read tool with no output schema, the description supplies the returned fields, the underlying endpoint, and the entitlement requirement. Nothing an agent needs in order to call it correctly and interpret failure is missing.

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?

There are zero parameters, so the baseline is 4 and there is nothing for the description to compensate for. The field list (id, title) is return-shape information, useful but not parameter semantics.

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 the resource (warehouses) and the exact fields returned (id, title), and the endpoint GET /storages confirms it is a retrieval operation. It is clear but does no work to distinguish itself from the many sibling list_* tools, since the name alone carries the 'list' verb.

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?

It states a real precondition — the warehouse-management feature must be enabled or the API returns HTTP 406 — which helps an agent decide whether the call is viable. It gives no guidance on when to prefer this over siblings (e.g., stock vs. warehouse lookups), so usage is only partially covered.

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