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

The annotations already declare readOnlyHint and destructiveHint=false, and the description adds the key behavioral fact those annotations can't convey: it returns procedural guidance and "opens nothing by itself," so the agent must chain into browser tools. That is meaningful disclosure beyond the structured fields. It omits what the returned steps look like in any detail and whether state is read from the live account.

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 core explanation is front-loaded and clear, but filler creeps in: "from ChatGPT, Claude or any AI agent" adds nothing, and the closing note about Zammad's REST API and a check date is tangential marketing/rationale rather than invocation guidance. Trimming those would tighten a definition that is otherwise two useful sentences.

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, non-mutating guide tool with no output schema, the description covers what an agent must know: what it returns, that it performs no action, and which tools perform the action. The remaining gap is the shape of the returned steps, but with no output schema and a simple contract, that is a minor omission.

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 is 4; there is nothing schema-wise an agent must decode. The description implicitly confirms no input is needed by describing a fixed, no-argument guide lookup. No further parameter detail is required or 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 states a specific resource and action (replying to a customer in Zammad) and then clarifies the actual behavior: it returns step-by-step instructions rather than performing anything. The name/title alone would mislead an agent into thinking this sends a reply, but the body corrects that immediately. It does not explicitly differentiate itself from the internal-note sibling, which keeps it below 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 clear follow-through guidance: use this to get the steps, then execute them with the cotlet_browser_* tools in the Zammad Cloud Browser. That is a workable when-to-use and how-to-continue instruction. It never states when not to use it (e.g. versus zammad_add_internal_note or a generic app guide), so it stops short of explicit exclusions.

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