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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds genuinely non-obvious behavior: it "opens nothing by itself" and returns procedural guidance, which an agent could easily misread as an execution tool. The API/Enterprise-plan note explains why a browser-workflow tool exists at all, though it is more justification than behavior.

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 purpose and workflow are front-loaded in the first two sentences, which is correct structure. However, the closing paragraph about $350/month Enterprise plans, custom API work, and a checked-on date is lengthy detail that adds little to an agent's decision to call the tool, diluting an otherwise tight 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?

With zero parameters, no output schema, and full annotation coverage, the definition supplies the essentials: what it returns, that it performs no action, and which tools execute the workflow. It stops short of indicating which specific reports or screens are covered, so an agent cannot predict the depth of the returned guidance.

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 nothing for the description to disambiguate and the baseline of 4 applies. The description does not needlessly invent parameter meaning, and the schema is fully documented by virtue of being empty.

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 ("View appointment reports in the user's own AestheticsPro account") and clarifies that the tool returns step-by-step instructions rather than performing the action, which distinguishes it from action tools like aestheticspro_create_appointment. It does not explicitly distinguish itself from the near-neighbor aestheticspro_view_appointment_history, leaving some ambiguity about reports vs. history.

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 operational sequence: call this to get the screens/buttons/fields, then execute with the cotlet_browser_* tools in the Cloud Browser. That tells the agent both what this tool is for and what to do next, but it offers no explicit exclusion rule for the many sibling 'view_*' tools, so the agent must infer which report view it needs.

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