list_external_services

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

No annotations are provided, so the description must fully disclose behavioral traits. It only states the basic 'list' action and gives examples, but does not mention pagination behavior, default page/items values, whether the list includes only active services, or any access/permission requirements. This lack of behavioral disclosure is a significant gap.

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, concise sentence that front-loads the action and resource, with helpful examples in parentheses. There is no redundant or unnecessary content; every word earns its place.

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?

For a simple list tool with two optional parameters, the description is adequate but does not mention pagination or return structure. Since there is no output schema, the agent might need more context about what the response contains, but the core purpose is clear enough for basic use.

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 describes both parameters (page and items) with default values, so the description adds no additional meaning beyond what the schema already provides. With 100% schema coverage, the baseline score of 3 is appropriate.

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 uses the specific verb 'List' and identifies the resource as 'external services integrated with the project' with concrete examples ('laundry, food, etc.'). This clearly distinguishes it from sibling tools like list_service_types and list_service_staffs, which focus on different aspects of services.

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 implies when to use the tool (when you need to list external services), but it does not explicitly state alternative tools or exclusion conditions. There is no guidance on when not to use this tool or when to prefer a sibling tool, leaving the usage context only implied.

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