ebay_relist_item

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

No annotations are provided, so the description carries the burden. It adds context about using the Trading API (RelistFixedPriceItem) and requiring a User OAuth token. However, it does not disclose potential side effects (e.g., new listing ID generation) or state changes beyond relisting.

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 two sentences, no fluff, and front-loads the core purpose. It efficiently includes purpose, optionality, API, and auth requirement.

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 2-param tool with no output schema, the description covers the basics (purpose, auth). However, it lacks information about the return value (e.g., new item ID) and whether the operation is synchronous. This gap reduces completeness.

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%, so baseline is 3. The description adds no extra meaning beyond the schema; it only mentions optional modifications, which is already clear from the schema's description of the modifications parameter.

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 verb 'Relist' and the specific resource 'an ended fixed-price listing', with optional modifications. This distinguishes it from similar tools like ebay_create_listing (new listing) and ebay_revise_listing (active listing), though not explicitly compared.

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 implies when to use (ended listing) but does not explicitly state when not to use it (e.g., active listings) or provide alternatives like ebay_revise_listing. The required OAuth token is mentioned, which helps, but more guidance is lacking.

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