ebay_get_campaign_negative_keyword

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

Without annotations, the description 'Get details' implies a read-only operation with no side effects. However, it does not disclose potential behaviors like authentication requirements, error handling on non-existent IDs, or rate limits. It is adequate but not thorough.

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, clear sentence with no unnecessary words. It is front-loaded and efficient.

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 simplicity and lack of output schema, the description is minimally complete. It does not explain the return format or behavior on missing data, but for a 'get details' tool, this is acceptable but not exemplary.

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%, with both parameters having basic descriptions ('Campaign ID', 'Negative Keyword ID'). The tool description adds no additional meaning beyond the schema, warranting the baseline score of 3.

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 'Get' and the resource 'details of a specific campaign-level negative keyword'. It distinguishes this tool from siblings like 'ebay_get_campaign_negative_keywords' and 'ebay_get_ad_group_negative_keyword' by specifying 'campaign-level'.

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 on when to use this tool versus alternatives such as 'ebay_get_campaign_negative_keywords' for listing or 'ebay_get_ad_group_negative_keyword'. The description lacks context about prerequisites or when not to use it.

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