get_employee_leave_balance

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

With no annotations, the description fails to disclose behavioral traits like read-only nature, authentication requirements, or side effects. It does not indicate that this is a safe, non-destructive operation.

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 very concise but lacks structure. It is front-loaded with the main action, but the param and return documentation are minimal and could be better formatted for readability.

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?

Despite low complexity (one parameter) and an existing output schema, the description does not explain the return value beyond a vague 'Leave balance message'. It omits details about what fields the response contains, which is critical for an agent to interpret the result.

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 description adds a brief explanation for the sole parameter 'emp_id' (Employee ID), which is slightly more descriptive than the schema's title 'Emp Id'. However, schema description coverage is 0%, so the description provides little additional value beyond stating the obvious.

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 the tool retrieves the leave balance of an employee, which distinguishes it from sibling tools like apply_leave (applies leave) and get_leave_history (retrieves historical records). However, it is somewhat vague about what exactly 'leave balance' includes.

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 on when to use this tool vs alternatives such as get_leave_history or apply_leave. There is no mention of prerequisites, context, or scenarios where this tool is preferred.

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