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

Annotations already declare readOnly, non-destructive, idempotent, closed-world behavior, so the bar is lower. The description nonetheless adds genuinely useful context: 'opens nothing by itself,' returns screens/buttons/fields instructions, and notes there is no self-serve API key or onboarding guide — all facts an agent could not infer from structured fields.

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 core two clauses are front-loaded and earn their place, but 'from ChatGPT, Claude or any AI agent' is filler and the closing API sentence is grammatically tangled ('Paired Plus's official API: The ProSolutions Paired host publishes API help, but...'). The information is useful; the packaging is loose.

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?

With no output schema, the description must describe the return value, and it does: step-by-step screens, buttons, and fields. Combined with rich annotations and zero parameters, the agent has enough to call this correctly. Only the absence of sibling disambiguation keeps it from full marks.

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 schema is fully described, so there is no parameter meaning to add. Baseline for a parameterless tool is 4.

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 first sentence names a specific verb and resource ('Get inventory report in the user's own Paired Plus account'), and the second sentence crucially clarifies that it returns step-by-step how-to instructions rather than the report data itself. That distinction is what an agent most needs, though the definition never differentiates it from nearby siblings such as paired_plus_list_inventory or paired_plus_build_custom_report.

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?

It explicitly routes the agent: this tool gives the steps, then 'do it with the cotlet_browser_* tools in the user's Paired Plus Cloud Browser.' That is clear when-and-how guidance naming the alternative tool family. It stops short of exclusions — nothing says when to prefer a direct report sibling over this guided path.

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