ebay_bulk_create_negative_keyword

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

With no annotations, the description must carry the full burden of behavioral disclosure. It only states 'bulk create' but does not disclose whether the operation is idempotent, error handling behavior, authentication requirements, or effects on existing keywords.

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, which is concise but lacks structure. It does not front-load key information or break down context; it is brief but not optimally informative for an agent.

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's complexity (nested array input, no output schema, no annotations), the description is incomplete. It does not explain what negative keywords are, how to construct the request, match types, or expected outcomes, leaving significant gaps for an agent.

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 coverage is 100% for the top-level parameter, but the description adds no meaning beyond the property names already present in the schema. The description could have clarified the purpose of nested fields like negativeKeywordMatchType or adGroupId, but it does not; baseline 3 is appropriate.

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 (bulk create) and resource (negative keyword) via the eBay Marketing API. It is specific enough to identify the tool's purpose, though it could further distinguish from single-creation or update tools.

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?

No guidance is provided on when to use this tool versus related tools like ebay_create_negative_keyword or ebay_bulk_update_negative_keyword. There is no mention of prerequisites, limitations, or alternative use cases.

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