etsy_listings_get_by_ids

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

Annotations already declare readOnlyHint=true, confirming it's a read operation. The description adds that it retrieves multiple listings, but does not disclose other behavioral aspects like rate limits or response format. No contradictions.

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, concise sentence with no fluff. However, its brevity leaves out potentially useful details, making it minimally informative.

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 simple batch retrieval, the description is minimally adequate. But it omits mention of the 'includes' parameter and does not hint at the return structure, which could be important for an agent. No output schema is present.

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 50% (only listing_ids described). The description does not add meaning beyond the schema for listing_ids and fails to explain the optional 'includes' parameter, which has no schema description.

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 action (Get), resource (Etsy listings), and method (by array of listing IDs). It effectively distinguishes from siblings like etsy_listing_get (single listing) and etsy_listings_list (all 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 implies usage when you have a list of specific listing IDs, but provides no explicit guidance on when to use vs. alternatives like etsy_listing_get or etsy_listings_list. No when-not-to-use information.

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