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

The annotations already declare readOnlyHint=true and destructiveHint=false, and the description reinforces and explains that: the tool 'opens nothing by itself' and instead returns screens, buttons, and fields for the agent to follow. This is valuable disambiguation for a tool whose name sounds like a mutation. It does not cover preconditions such as required account permissions or session state in the Cloud Browser, so it is strong but not exhaustive.

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 purpose and the critical caveat that nothing is opened automatically. The final sentence about Petpooja publishing no API documentation is slightly tangential and awkwardly phrased, but it does head off an agent fruitlessly looking for an API endpoint, so it earns a 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 zero parameters and no output schema, the description carries the burden of explaining what comes back, and it does: step-by-step instructions with screens, buttons, and fields, plus the pointer to cotlet_browser_* for execution. For a zero-parameter guidance tool this is substantially complete, though it omits any note on what happens if the item or menu is not found.

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 input schema has zero parameters and additionalProperties is false, so there is no parameter meaning for the description to add. The baseline of 4 applies; nothing in the description misleads about 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 task (switching an item off online in Petpooja) and immediately clarifies that the tool itself returns instructions rather than performing the action: 'Returns how to do it in Petpooja step by step (screens, buttons, fields) and opens nothing by itself.' That resolves the ambiguity created by the action-oriented name. It does not explicitly differentiate itself from other Petpooja guide-style siblings such as cotlet_app_guide, which keeps it from 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?

It gives a clear workflow: call this to get the steps, 'then do it with the cotlet_browser_* tools in the user's Petpooja Cloud Browser.' That tells the agent how this tool fits into a sequence and which tools execute the action. There is no explicit when-not or exclusion statement, so it stops short of full routing guidance.

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