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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, and the description is consistent with them while adding value: it states it opens nothing by itself and that the actual mutation happens through separate browser tools. It also discloses that ChowNow offers no owner-usable API, which explains why the browser path is required. Minor gap: it does not say whether a Cloud Browser session must be pre-opened.

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 purpose is front-loaded, but the second sentence is a run-on that chains the return value, the no-side-effect guarantee, and the follow-up tool family with a semicolon. The 'from ChatGPT, Claude or any AI agent' framing and the dated parenthetical add words without helping tool selection.

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 guidance tool with no output schema, the description covers what comes back (step-by-step screens, buttons, fields), that nothing is executed, and which tools perform the actual work. The only missing piece is any precondition about the Cloud Browser session being available.

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 baseline is 4. The description could have noted that no schedule/day inputs are accepted (the specifics come back in the returned instructions), but with an empty object schema this is a minor omission.

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 specific resource and account scope ('update hours in the user's own ChowNow account') and immediately reveals the real behavior: it returns step-by-step instructions rather than performing the update. This overrides the potentially misleading verb in the name. It stops short of explicitly naming a sibling such as cotlet_app_guide as the alternative, so it is clear but not fully differentiated.

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 usage sequence: call this to get the screens/buttons/fields, then execute with the cotlet_browser_* tools in the user's Cloud Browser. The 'then do it with...' clause is real routing guidance. There is no explicit when-not or exclusion (e.g., versus a generic app guide), which keeps it below a 5.

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