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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world, so the safety bar is met. The description adds real value beyond them: it explicitly says the tool 'opens nothing by itself' and that the return is a step-by-step walkthrough of screens, buttons, and fields, which is exactly the behavioral context an agent needs. It stops short of describing output shape or sizing.

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 most important fact — that this returns instructions rather than data — is buried after an initial sentence that suggests otherwise, so it is not front-loaded. The trailing API-documentation note (with a future-dated 'checked' stamp) is tangential to invoking the tool and weakens the structure. It is not bloated, but reordering would materially improve it.

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 tool with no output schema and rich annotations, the description covers what it returns (step-by-step screens/buttons/fields) and how to proceed afterward with the browser tools. That is sufficient context to call it correctly; only the return granularity remains unspecified.

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?

There are zero parameters, so there is nothing to disambiguate and the baseline is a 4. The description appropriately spends no effort on parameters and instead clarifies the interaction model.

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 states a specific resource (bill exceptions) and explicitly corrects the misleading 'list' verb by saying it 'Returns how to do it in Petpooja step by step' and 'opens nothing by itself.' That transparent correction lets an agent tell this is a guide-retrieval tool, not a data-fetch. The lead sentence still invites confusion before the clarification arrives, keeping it short of 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 workflow guidance — use this to learn the steps, then act via the cotlet_browser_* tools in the user's Petpooja Cloud Browser — which is genuinely useful sequencing. However, it does not differentiate this from other petpooja_* or cotlet_app_guide-style helpers, so when-to-use-vs-alternative is only implied.

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