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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description adds non-obvious behavior beyond that: it performs no UI action, returns procedural steps (screens, buttons, fields), and requires a separate Cloud Browser session to execute. It does not describe the shape or length of the returned instructions.

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 meaning (returns instructions, does not act; then use browser tools) is front-loaded and clear. However, 'from ChatGPT, Claude or any AI agent' is marketing filler that consumes space without informing tool selection, and the API/date parenthetical is tangential trivia that dilutes the actionable content.

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 instruction tool with no output schema, the description covers what is returned (step-by-step screens, buttons, fields) and what the agent must do next with the browser siblings. The only gap is not characterizing the returned instruction format or confirming a Cloud Browser session must already exist.

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. The description adds no parameter detail, but none is needed since the empty schema is self-explanatory and the call requires no inputs.

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 verb and resource (reading the Wait List in the user's Jane App account) and immediately clarifies a counterintuitive behavior: the tool returns step-by-step UI instructions rather than data, and 'opens nothing by itself.' That correction makes the tool distinguishable from jane_app_book_a_wait_list_client, though the read/instruction distinction only becomes clear after reading the second sentence.

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 explicitly routes the agent onward: use the cotlet_browser_* tools in the user's Jane App Cloud Browser to actually perform the read. It also explains why the official Jane API is not an option (Technology Partners only), heading off a likely alternative. It does not state exclusions, such as when to prefer cotlet_app_guide or the booking sibling instead.

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