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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description goes beyond them by disclosing two non-obvious behaviors: it opens nothing by itself, and its output is instructional text describing screens, buttons and fields rather than data. It doesn't say what the response looks like when the app isn't open or the user isn't logged in, which keeps it short of a 5.

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 action, then the return behavior, then the fallback to browser tools. The closing API enumeration (Widget, Webhooks, Chat, Bot, no REST API, checked 20 Oct 2026) is dense but earns its place by justifying why this guide-plus-browser approach exists at all.

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, no output schema, and full annotation coverage, the description covers what an agent needs: what it does, what it returns, and what to do next. A brief note on the prerequisite of an active Cloud Browser session would make it fully self-contained.

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. The baseline for a parameterless tool applies, and the description's note that the subsequent browser steps come from the user's own Cloud Browser session correctly frames that no scoping arguments are needed.

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 opening line states a specific verb and resource (list chats in the user's own JivoChat account), and the second sentence immediately clarifies what the tool actually returns: a step-by-step guide, not the chats themselves. It does not distinguish this from sibling jivochat_list_clients or jivochat_get_aggregated_report, so an agent must infer the boundary from their names alone.

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 an explicit follow-on path – use this tool, then perform the action with the cotlet_browser_* tools in the JivoChat Cloud Browser – which is real routing guidance. What's missing is an explicit exclusion (for example, when to prefer the direct chat-mutating siblings like jivochat_reply_to_chat instead of the browser workflow).

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