get_paystub_pdf

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds that the tool downloads a PDF, which is useful behavioral context, but doesn't mention response format or any required permissions. With annotations present, this is adequate but minimal.

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 (8 words) with no wasted words. It clearly states the action, resource, and qualifying details, making it well-structured and front-loaded.

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 download tool with full schema coverage and annotations, the description adequately covers the essentials: what (paystub pdf), who (employee), and when (given month). No output schema is present, so return values need not be explained. Minor gap: it doesn't explicitly note that the output is the PDF file itself, but this is implied by 'Download'.

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 covers all three parameters (employeeId, year, month) with descriptions, achieving 100% schema_description_coverage. The description adds little beyond what the schema already provides, merely echoing 'employee' and 'month'. Baseline 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 clearly specifies the action (Download), the resource (paystub pdf), and the target (employee, given month). However, it does not distinguish this tool from the sibling 'get_pdf_for_employee_in_month', which appears to perform a similar function. This is clear but lacks sibling differentiation.

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 provides no guidance on when to use this tool versus alternatives, nor any prerequisites or exclusions. Given the presence of a similarly named sibling tool, the lack of usage context is a notable gap.

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