mouseGetPos

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description does add genuine non-annotation context by naming the host environment and trust requirement, but it omits anything about what is returned or rate/session constraints.

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 no padding and the environment prerequisite front-loaded in its own clause. The opening sentence is largely redundant with the tool name, but the overall footprint is appropriately small for a trivial getter.

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?

There is no output schema, so the description carries the burden of explaining the return value (cursor coordinates, and presumably a failure mode outside an interactive desktop) — yet it says nothing about what comes back. For a zero-param getter this is the one piece of information the agent actually needs, and it is missing.

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 tool takes zero parameters, and the empty object schema is fully described (100% coverage), so there is nothing for the description to clarify. Baseline 4 applies per the zero-parameter rule.

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 mouseGetPos" essentially restates the tool name with a platform qualifier; it never states the verb+resource outcome (e.g. "returns the current cursor position"). It also does nothing to distinguish this from the sibling mouseGetCursor, which an agent could easily confuse it with.

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 only guidance offered is a prerequisite ("Requires a trusted owner and an interactive Windows x64 desktop"), which is environment info rather than when-to-use guidance. There is no indication of when to pick this over mouseGetCursor or any other sibling, nor any exclusion cases.

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