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

Strong disclosure beyond the annotations: the tool 'opens nothing by itself', returns procedural steps, and requires the Cloud Browser to actually complete the work — this is exactly the kind of context annotations cannot convey. The note about the absence of a public Gymdesk API also explains why a browser-based approach is necessary. Minor gap: it does not say what happens if no browser session is available.

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 purpose and the crucial 'returns steps, doesn't act' caveat are front-loaded in the first two sentences. The third sentence about the missing API is longer than needed (three 404 URLs) but does justify the design decision, so it earns most of its space.

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 no output schema, the description carries the burden of describing returns and does so ('how to do it in Gymdesk step by step (screens, buttons, fields)'). Given the tool is a zero-parameter guidance lookup, this is close to complete; only the handoff mechanics to cotlet_browser_* remain slightly underspecified.

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 nothing the description needs to disambiguate. It does not claim any filtering inputs, which correctly matches the empty schema.

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 set and resource ('View, search and export sales transactions') and immediately corrects the likely misreading by stating it returns step-by-step instructions rather than performing the export. It does not, however, distinguish this from close siblings such as gymdesk_view_and_export_payments or gymdesk_view_and_export_accounting, leaving the agent to infer the boundary between 'sales transactions' and 'payments'.

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 a clear usage flow: call this first to get the Gymdesk screens/buttons/fields, then execute with cotlet_browser_* tools in the user's Cloud Browser. That is genuinely actionable, but there is no guidance on when to prefer a sibling report tool instead, and no prerequisites stated (e.g., whether a browser session must already exist).

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