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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, and the description is consistent with them ('opens nothing by itself'). It adds real value beyond the annotations by disclosing the return content (screens, buttons, fields) and the required follow-up tool family, though it says nothing about response size or failure modes.

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?

Three sentences, front-loaded with the action and immediately followed by the key caveat that nothing is executed. The 'from ChatGPT, Claude or any AI agent' clause and the API-absence note are somewhat extraneous to invoking the tool, but not enough to hurt clarity.

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 zero parameters, no output schema, and full annotation coverage, the description supplies what an agent needs: what the call returns and which tools to chain afterward. The API note explains why a browser-based flow is required, rounding out the picture; only a hint about the shape of the returned guide 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 explain and the baseline of 4 applies. The description correctly implies no inputs are needed, which matches the empty 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?

States a specific verb and resource ('Add link in the user's own Milanote account') and immediately clarifies the non-obvious mechanic: it returns step-by-step instructions rather than performing the action. It does not differentiate itself from the sibling 'add_link' tool, which an agent could easily confuse with this one, so it falls short of a 5.

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?

Gives a clear usage sequence: call this first to get the walkthrough, then execute with the cotlet_browser_* tools in the user's Milanote Cloud Browser. It does not state explicit exclusions (e.g., when to prefer 'add_link' or milanote_add_note instead), so it stops short of full when/when-not guidance.

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