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

Annotations provide no positive hints (readOnlyHint=false, destructiveHint=false, etc.), and the description does not add behavioral context. It does not disclose whether the pause is reversible, what happens with multiple printers, or any side effects like affecting ongoing operations.

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 with no filler or redundancy. It is front-loaded and easy to parse, making it efficient for an agent to quickly understand the tool's 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?

For a simple one-parameter mutation tool, the description is functional but incomplete. It does not mention resumability via resume_print, behavior with multiple printers, or the response format. Sibling tools exist but are not referenced, leaving some gaps for an agent deciding whether to invoke this tool.

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 100% for the sole parameter 'printer_id', so the schema carries the meaning. The tool description itself adds no parameter information. However, the schema parameter description mentions 'comma-separated' while the type is integer, a mismatch that is not clarified by the tool description.

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 action ('Pause') and the resource ('current print on a printer'). It is distinct from sibling tools like resume_print and cancel_print, though it does not explicitly name alternatives. The phrase 'a printer' creates slight ambiguity given the parameter accepts comma-separated IDs.

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 is provided on when to use this tool versus alternatives such as cancel_print or resume_print. There are no prerequisites, exclusions, or contextual hints, leaving the agent to infer usage solely from the tool name and sibling list.

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