Get listing limits

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

The description adds the HTTP endpoint and confirms it returns per-category counts, which goes beyond the readOnlyHint annotation. However, it does not disclose rate limits, authentication requirements, or any side-effects. With annotations already indicating read-only and open-world, the description provides modest additional context.

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?

The description is a single sentence that front-loads the main action and includes relevant details (categories, counts, endpoint). Every word earns its place; there is no redundancy or fluff.

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?

Given the tool has no parameters and no output schema, the description adequately specifies the return content. It could optionally mention the response format (e.g., object keyed by category), but the current level of detail is sufficient for an agent to understand what to expect.

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 input schema has no parameters and 100% schema coverage, so the description does not need to explain parameters. It adds value by specifying the output (per-category limits with counts), which helps the agent understand what the tool returns.

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 clearly states the tool returns per-category listing limits with current counts for specific categories, using a specific verb and resource. It distinguishes itself from siblings like get_refresh_limits or get_listing by focusing on limits rather than individual listings.

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 does not explicitly state when to use this tool versus alternatives. While the purpose is clear, there is no guidance on circumstances that would make this tool preferable over others, such as get_refresh_limits or search_listings.

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