add_employee

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says 'Add a new employee' and gives return type as str. It does not mention whether manager_id must reference an existing employee, whether email must be unique, whether permissions are required, or what the returned string represents.

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 short, front-loaded with the core purpose, and free of filler. The Args and Returns lines are structured simply, though they mostly restate schema information. It earns a high score for efficiency, but not a 5 because it omits useful detail while keeping the parameter block.

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 create operation with no annotations and no detailed output schema, the description is too thin. It does not explain what manager_id refers to, whether the operation has side effects, what valid input values look like, or what the return value means. An agent would likely need to infer or discover critical details elsewhere.

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 0%, and the description merely repeats the parameter names and types from the schema without adding meaning. It does not clarify the semantics of manager_id, email uniqueness, or any constraints or relationships. The description fails to compensate for the low schema coverage.

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 states a clear action and resource: 'Add a new employee to the system.' This is specific enough to distinguish the tool from siblings like get_employee_details, apply_leave, or send_email, none of which perform employee creation.

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 intended use is implied: use this tool when adding a new employee. However, there is no explicit guidance about prerequisites, when not to use it, or how it compares to other tools. The instruction is clear but leaves selection context entirely implicit.

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