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

Adds substantial context beyond the annotations: the tool returns procedural instructions and "opens nothing by itself," so the agent knows no state changes occur, and that real execution requires separate browser tools. This is consistent with readOnlyHint=true and destructiveHint=false, and clarifies the division of labor between this tool and the browser tools.

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 workflow is front-loaded and clear, but the trailing sentence about the ProSolutions Paired host API and the absence of a self-serve API key is tangential, muddled, and doesn't help the agent call this tool. Trimming it would sharpen the definition.

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, no-output-schema tool, the description does enough: it says what is returned (step-by-step instructions) and how to proceed afterward. The only gap is the unclear role of the API note, which adds doubt rather than clarity.

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 per the baseline there is nothing to disambiguate. The description correctly implies no inputs are needed.

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?

States a specific verb+resource ("Configure email follow up") scoped to "the user's own Paired Plus account," so an agent can tell what the tool is for. It doesn't explicitly differentiate itself from the similarly named email siblings (prepare_email_campaign, send_email_campaign), leaving some ambiguity about which email tool to pick.

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?

Provides a clear workflow context: call this first to get step-by-step screens/buttons/fields, then perform the actual configuration with cotlet_browser_* tools in the Cloud Browser. No explicit when-not-to-use or named alternative among siblings, which keeps it short of a 5.

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