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

Annotations declare readOnlyHint=true and destructiveHint=false, and the description is consistent, reinforcing that it 'opens nothing by itself'. It adds behavior beyond the annotations by disclosing the return shape (step-by-step screens, buttons, fields) and the dependency on the user's Cloud Browser session. It doesn't mention whether the guidance can go stale or what happens if the account/session isn't authenticated, which keeps it at 4.

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 it only returns instructions and executes nothing, is front-loaded. The trailing API note reads slightly awkwardly ('ChowNow's official API: ChowNow has no API...') and the dated parenthetical is a bit of clutter, but overall there is little waste.

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, read-only guidance tool with no output schema, the description covers what it does, what it returns, that it has no side effects, and which tools complete the job. The main remaining gap is the precondition that an order must exist/be selected, which an agent must infer.

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 of 4 applies. There is no parameter meaning for the description to add, and none is missing.

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 verb and resource (accept an order in the user's ChowNow account) and immediately clarifies the twist that the tool returns step-by-step instructions rather than performing the action. It explicitly hands off execution to cotlet_browser_* tools, so an agent can distinguish this from siblings like chownow_list_orders. It stops short of 5 because the tool name 'accept_order' still invites the misreading that the order is accepted here, which the description has to undo rather than preempt.

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 clear context for use: call this to get screens/buttons/fields, then act with cotlet_browser_* tools in the ChowNow Cloud Browser. The 'no official API' note explains why this two-step path is the only option, which is genuine routing guidance. No explicit when-not-to-use or prerequisite ordering (e.g. locating the order via chownow_list_orders first) is stated, so it falls short of 5.

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