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

Annotations declare readOnlyHint/idempotentHint true and destructiveHint false, and the description is consistent, adding the genuinely non-obvious behavior that the tool "opens nothing by itself" and returns instructions covering screens, buttons and fields. It further explains why browser automation is required rather than the official API, which annotations could never convey. It stops short of describing output format or length details.

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 critical qualification that the tool only returns instructions rather than executing appears mid-sentence in the second sentence, while the closing passage about the official Provider API and its eight read-only areas is a long detour that does not change how the agent invokes the tool. The content is accurate but could be reordered to lead with the surprising behavior and trimmed of the API inventory.

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, no-output-schema tool, the description covers what the agent needs: what it returns (step-by-step screens, buttons, fields), that nothing is executed server-side, and which tool family to use afterward. Missing pieces are minor, such as any prerequisite state a video bundle requires before the steps apply.

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 schema is trivially complete and there is no parameter meaning the description needs to compensate for. Baseline of 4 applies.

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?

Names a specific verb and resource ("Create video bundle") scoped to the user's own Eversports Studio Manager account, and immediately clarifies that the tool returns step-by-step instructions rather than performing the action. The first sentence still reads like an execute verb before the clarification lands, and it never explains what a "video bundle" is, but an agent can distinguish it from the cotlet_browser_* tools and other siblings.

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?

Explicitly states the workflow: call this to get the steps, then "do it with the cotlet_browser_* tools in the user's Eversports Studio Manager Cloud Browser." That is a clear when-to-use and what-to-do-next instruction with no ambiguity about sequencing. It does not name exclusion cases or say when not to use it, which keeps it short of a 5.

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