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

Annotations already declare read-only, idempotent, non-destructive behavior, so the description does not need to restate safety. It does add genuinely new facts: the call is free and opens no browser session, and that unknown apps still get the general method rather than failing. No return-shape detail, but that is minor for a lookup tool.

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, but the body is one long comma-spliced sentence listing seven or eight content items, which reads as a run-on rather than structured guidance. The key instruction ('call it before the first browser step') is buried in the middle. Shorter sentences or a list would earn the same content more clearly.

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 must convey what comes back; it does so by enumerating the guide's sections. It also covers the no-session, free, any-app behavior an agent needs to decide to call it. Nothing critical is missing for a zero-required-parameter reference tool.

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 coverage is 100%, so the schema already documents both `app` (with the Tripleseat default) and `task`. The description adds no syntax, format, or fallback detail for either parameter. Baseline 3 is correct when the schema carries the parameter burden.

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 the resource (a how-to guide for working in a web app via Cotlet's Cloud Browser) and enumerates what it contains: browser choice for the workspace, sign-in link, step-by-step method, screens, menus, actions, notes, and any dedicated tools. It implicitly separates itself from the cotlet_browser_* action tools by being the reference consulted before acting. It is slightly dense but an agent can tell what it retrieves.

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 trigger: 'Call it before the first browser step in an app.' Scope is bounded: works for any web app, and one outside Cotlet's catalog falls back to the general method. That is both when-to-use and coverage, leaving little to infer.

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