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

Annotations already establish read-only, idempotent, and non-destructive behavior, so the lower bar applies. The description adds genuinely useful context beyond that: it is 'Free, no browser session,' so calling it does not consume a browser session or incur cost, and it discloses the guide content plus the general-method fallback for uncataloged apps.

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 is front-loaded in the first clause, and each listed element (browser choice, sign-in, method, screens, tools) is relevant to what the guide provides. The text is dense but not padded, though splitting the inventory of returned content into a short bullet-like structure would improve scanability.

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 job of saying what comes back, and it does: browser choice, sign-in link, step-by-step method, screens, menus, actions, notes, and dedicated tools. Combined with fully documented parameters and annotations covering safety, nothing material is missing for an agent to call this correctly.

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?

Schema description coverage is 100%, and the two parameters (app, task) are fully documented in the schema itself, including the Autotask default. The description adds no parameter-level detail such as how to phrase the task or what slugs look like, so it sits at the baseline for high schema coverage.

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?

States a specific resource (an app guide for the Cloud Browser) and enumerates what it returns: browser choice, sign-in link, step-by-step method, screens/menus/actions, notes, and dedicated tools. It implicitly distinguishes itself from the browser action siblings by framing itself as the guide to consult before clicking, though the core verb is nominal rather than a crisp action verb.

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?

Explicit timing is given: 'Call it before the first browser step in an app.' It also clarifies scope with the fallback rule that apps outside Cotlet's catalog get the general method. It does not explicitly name the browser_* siblings as the alternatives that perform the actual steps, but the context is strong enough to infer.

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