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

Annotations already declare readOnlyHint=true and destructiveHint=false, and the description reinforces this with 'opens nothing by itself,' which is the single most important behavioral fact here. It also discloses the return shape ('step by step (screens, buttons, fields)'), going beyond what the annotations supply. The trailing note about Plausible's limited official API is vaguely relevant but does not explain any concrete constraint such as what happens when the UI differs from the documented screens.

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 message (returns instructions, does not act, use browser tools to execute) is front-loaded and useful. However the opening clause is misleading for a tool that performs no action, and the final sentence about Plausible's official API is a dangling fragment that does not clearly connect to how the agent should behave, plus the 'checked 22 Oct 2026' date adds noise.

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 zero-parameter, read-only guidance tool with no output schema, the description covers what matters: it produces instructions, does not act, and must be followed by browser tools. The remaining gap is minor – no indication of what the instruction payload looks like structurally or whether guidance varies by plan/settings – but nothing an agent needs in order to call it correctly 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, so there is no parameter semantics to add and the baseline of 4 applies. The schema's empty object with additionalProperties=false is fully self-describing.

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 does state the resource (a Plausible shared link) and clarifies that the tool actually returns step-by-step UI instructions rather than performing the action, which is essential. But the framing 'Create shared link ... from ChatGPT, Claude or any AI agent' reads like it performs the creation, so an agent skimming the first clause may mis-select it before reaching the clarification. It names the cotlet_browser_* family as the acting tools but does not distinguish itself from any Plausible sibling that might also touch sharing.

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?

Explicit handoff guidance is present: after getting the steps, the agent should 'do it with the cotlet_browser_* tools in the user's Plausible Cloud Browser.' That is a clear when/what-next statement rather than an inference. It lacks an explicit negative case (e.g., when not to use this versus a direct API path), which keeps it below 5.

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