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

The annotations declare readOnlyHint=true, idempotentHint=true and destructiveHint=false; the description reinforces this by stating it 'opens nothing by itself', which resolves the apparent conflict with the create-oriented name. It adds real context beyond the annotations (the required follow-up browser flow, and the absence of an official API). It does not describe the shape or length of the returned steps.

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 key facts are front-loaded: what it returns, that it does nothing itself, and which tools to use next. Some phrasing is redundant ('from ChatGPT, Claude or any AI agent') and the trailing 'checked 11 Oct 2026' date is oddly placed, but nothing is seriously wasteful.

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, non-mutating guidance tool with a full annotation set and no output schema, the description covers the workflow handoff and the API situation. A sentence on what the returned steps look like would close the last gap.

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 the baseline is 4. The description does not need to explain any input syntax, and the schema (with additionalProperties false) fully covers the empty input.

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 specifies the resource (a booking in the user's own Booksy account) and then corrects the surface reading of the name by saying it 'Returns how to do it in Booksy step by step ... and opens nothing by itself'. That correction is essential and distinguishes it from the cotlet_browser_* siblings, but an agent skimming the name 'create_booking' could still initially mis-expect a write.

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 gives explicit workflow guidance: call this first to get step-by-step instructions, then execute with the named cotlet_browser_* tools in the user's Booksy Cloud Browser. It also rules out an API path by stating Booksy has no self-serve API for business owners. There is no explicit statement of when not to use it versus booksy_reschedule_booking, but the sequencing rule is clear.

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