ebay_get_compatibilities_by_specification

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

With no annotations, the description must disclose behavior. It only states 'get', implying a read operation, but offers no details on side effects, authentication requirements, rate limits, or error handling. The agent lacks essential behavioral insight.

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 short sentence, making it concise. However, it is overly terse and lacks structure that would convey necessary context, such as scope or data returned. Conciseness without clarity is insufficient.

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 object parameter, many sibling tools, no output schema), the description is very incomplete. It does not explain what 'compatibilities' are, provide examples, or differentiate from related tools, leaving the agent with little context for correct invocation.

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 fully documents the 'specification' parameter with its nested properties, achieving 100% schema coverage. However, the description adds no additional meaning or usage guidance beyond what the schema provides, so it meets the baseline but does not enhance understanding.

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 'Get compatibilities by specification' clearly states a verb ('get') and resource ('compatibilities'), but fails to differentiate from similar sibling tools like 'ebay_get_product_compatibilities' or 'ebay_get_compatibility_property_values', which could cause confusion for an AI agent.

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 usage guidelines are provided. The description does not indicate when to use this tool versus alternatives, nor does it mention any prerequisites or exclusions. This leaves the agent without context for decision-making.

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