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

Annotations already declare readOnlyHint=true and openWorldHint=false, and the description confirms and extends this with 'opens nothing by itself' plus the reason it exists (Powered Now publishes no public API docs). It does not describe how long or how structured the returned instructions are, which is the one behavioral detail an agent would still want.

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 actionable content is front-loaded, but 'from ChatGPT, Claude or any AI agent' is promotional filler, and the trailing 'Powered Now's official API: Powered Now publishes no public API docs' is a dangling fragment that should be folded into a proper sentence. Roughly a third of the text does not earn its place.

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 definition only needs to convey what the call yields and what to do next, and it does both. It stops short of saying anything about the shape of the returned steps or whether state persists between calls, which would matter for a multi-turn browser workflow.

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 schema is trivially complete. A baseline score applies, and the description adds no parameter-related meaning because none exists.

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 the resource (a quote in the user's Powered Now account) and then explicitly redefines the verb: the tool returns step-by-step instructions rather than creating anything. That correction is clear, but the opening sentence still reads as if the tool performs the creation, so an agent has to read past it to get the true purpose.

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 workflow explicitly: call this to get the screens/buttons/fields, then execute with the cotlet_browser_* tools in the user's Cloud Browser. What is missing is disambiguation against other Powered Now guidance tools (e.g. cotlet_app_guide) and any statement of when this tool should not be used.

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