ebay_update_ad_group_bids

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states 'Update', implying mutation, but does not reveal whether the update is additive or overwriting, what permissions are needed, if the operation is idempotent, or what happens on failure.

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 very short (one sentence) and front-loads the verb. It is concise, but for a tool with nested parameters and no annotations, slightly more detail would be beneficial. However, it is not overly verbose and earns a high conciseness score.

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 (3 required params, nested object) and lack of output schema or annotations, the description is incomplete. It does not explain return values, success/failure indications, or side effects. The minimum viable completeness is not met.

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 100% coverage with descriptions for all parameters. The description does not add any meaning beyond what the schema already provides; it merely summarizes the action. According to guidelines, baseline score is 3 when schema coverage is high, and the description adds no additional semantics.

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 'Update' and the resource 'default bids for an ad group'. It is specific enough to distinguish from sibling tools like 'ebay_update_ad_group' and 'ebay_update_ad_bid', which handle different aspects of ad group or bid updates.

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 provides no guidance on when to use this tool versus alternatives. It does not mention when updating default bids is appropriate, when not to use it, or any prerequisites. Sibling tools exist for related tasks, but no differentiation is given.

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