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

The annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the description only needs to add context. It does so by clarifying that the tool 'opens nothing by itself' and returns step-by-step screens, buttons, and fields, which confirms the read-only behavior and describes the return shape. The explanation of AestheticsPro's API pricing and lack of public documentation is background that justifies using browser automation, but it does not add much behavior detail for this call.

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 useful information (what it returns, that it opens nothing, and the follow-up browser tools) is front-loaded in the first two sentences. The opening 'from ChatGPT, Claude or any AI agent' is generic filler, and the closing paragraph about Enterprise pricing and API documentation is lengthy background that only indirectly supports the tool's use. The definition is serviceable but carries weight that does not help an agent invoke the tool.

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 parameters and no output schema, the description must explain what comes back, and it does: a step-by-step guide with screens, buttons, and fields. It also describes the follow-up path through the cotlet_browser_* tools. A little more detail about the response format (for example, whether it is a numbered checklist) would make it fully complete.

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 (empty object schema, additionalProperties false), so there is nothing for the description to disambiguate. The baseline for a parameterless tool is 4, and nothing in the description misrepresents the inputs.

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 names a specific verb and resource: 'Map services to scheduling resources in the user's own AestheticsPro account.' It also states what the tool returns (step-by-step screens, buttons, fields). The resource (services to scheduling resources) is distinct from the sibling examples such as appointment syncing or client creation, but the description never explicitly names a sibling to differentiate itself from.

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 states the usage model clearly: this tool returns instructions and 'opens nothing by itself', and the actual change is then made 'with the cotlet_browser_* tools in the user's AestheticsPro Cloud Browser.' That effectively tells an agent when to use this tool rather than an action tool. It does not state explicit exclusions or prerequisites, such as which permissions are needed.

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