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

The description adds meaningful behavioral context beyond the readOnlyHint annotation by stating that the catalog is currently empty, so the tool will not yield any services yet. It also characterizes the listed items as delivered and priced, which clarifies the tool's domain. No contradiction with annotations.

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, no filler, and the central meaning is front-loaded. Every phrase adds information, including the current-empty status.

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 read-only, parameterless list tool, the description covers purpose, current state, and domain differentiation. No output schema is provided, but for such a minimal tool this is not a critical omission; an agent has enough to call it correctly and interpret an empty result.

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?

With zero parameters and 100% schema coverage, there are no parameter semantics for the description to explain. The baseline for a zero-parameter tool is appropriately high, and the description does not need to add parameter-level detail.

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 resource: a catalog of delivered, priced endpoints that are callable and billable. This goes well beyond the title and distinguishes the tool from wish-related siblings like browse_wishes, since it targets built services rather than pending wishes.

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 provides clear context: use this when you want the actual, delivered, priced endpoints rather than wishes or status checks. It does not explicitly name alternatives or state exclusions, but the 'no wish has been built yet' note situates it within the wish-to-service workflow well enough for an agent to select it.

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