Merchants Get Merchant

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true. The description adds no further behavioral context, such as what the returned merchant object contains or any side effects. Given the annotations, the description misses the opportunity to clarify return structure.

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?

At two words, the description is excessively brief, sacrificing informativeness for conciseness. While brevity is valued, this level of underspecification hinders understanding.

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?

Without an output schema and with only a minimal description, the agent has no information about the structure of the returned merchant object. Given the complexity of the parameters and the presence of sibling tools, the description is incomplete.

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 only 50%, with 'merchant_id' and 'session_path' lacking descriptions. The tool description does not compensate by explaining these parameters. The agent must rely on schema alone, which is insufficient for proper invocation.

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 merchant.' clearly indicates that the tool retrieves a merchant resource, but it fails to distinguish from sibling 'merchants_list_merchants', which also retrieves merchant data but multiple. The purpose is clear but could be more specific about scope.

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 alternatives like 'merchants_list_merchants' or 'merchants_update_merchant'. The agent is left to infer usage context from the name alone.

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