mouseWheel

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

Annotations already declare the safety profile (destructiveHint=true, openWorldHint=true, non-idempotent), so the description is not responsible for that. It adds two prerequisites not present in the structured data: a trusted owner and an interactive Windows x64 desktop, which is real context an agent needs before invoking. It stops short of saying which window receives the scroll (presumably the active one at the current cursor position), which is the remaining behavioral 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?

Two short sentences with the environment constraint front-loaded after the identifier, no filler or repetition. It is economical, though the first sentence is mostly a name restatement rather than an action statement.

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 two-parameter tool with full schema coverage, no output schema, and annotations covering safety, the definition is close to sufficient. However it omits where the scroll is delivered (active window vs. cursor position), which is the key operational fact for a coordinate-less input tool alongside mouseGetPos/mouseMove siblings.

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% with both parameters documented (clicks range 1-100, direction enum up/down), so the baseline is 3. The description adds nothing about how clicks map to scroll distance or about the target window, so it does not exceed the schema.

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?

"Windows AutoIt mouseWheel" largely restates the tool name and does not state in plain terms that it performs a scroll action. The only added information is platform/library attribution, and no sibling (mouseMove, mouseClick, mouseClickDrag) is distinguished.

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?

There is no guidance on when to prefer mouseWheel over mouseClick/mouseMove or over control-level alternatives such as controlSend. The environment prerequisite is stated, but no selection criteria or exclusions are offered.

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