get_payee_location

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. However, it does not state that this is a read-only operation, does not mention error handling (e.g., what happens if the location ID does not exist), and does not describe authentication or rate limits. The detailed explanation of exclude_fields is useful but insufficient for overall behavioral transparency.

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 concise and front-loaded with the purpose. The parameter explanations are structured clearly in a list. However, the exclude_fields explanation is somewhat verbose, though it adds necessary detail. Overall, every sentence serves a purpose.

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 presence of an output schema, return values do not need to be described. The description adequately covers parameters and provides a hint for finding plan IDs. However, it does not explain what a payee location is, which might leave some ambiguity. The tool is simple, so this is adequate but not comprehensive.

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?

With 0% schema coverage, the description adds significant meaning beyond the input schema. It explains the purpose of payee_location_id and plan_id, and gives a thorough explanation of exclude_fields including default behavior and how to override. This adds clear value for the agent.

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 'Get a single payee location.' The verb 'Get' and resource 'payee location' are specific and unambiguous. Among siblings, it is distinguished from list_payee_locations (list all) and get_payee_locations_by_payee (filter by payee), so its purpose is well-defined.

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 lacks guidance on when to use this tool versus alternatives like get_payee_locations_by_payee. While it hints at using list_plans to find plan IDs, it does not explain when a single location retrieval is appropriate or what prerequisites exist. No explicit when-to-use or when-not-to guidance is provided.

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