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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds the key workflow context that this tool does not return page state itself and must be followed by get_page_state. However, it says nothing about timeout behavior, determinism, or what happens if the wait is too short, which matters for a timing-based 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?

A single tight sentence with no filler. The purpose is front-loaded, and the follow-up step is appended without wasting words.

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?

An output schema exists, so return values need not be described. Still, for a two-parameter timing tool with 0% schema coverage, the description leaves duration selection and the job_id parameter unexplained, which is a real gap even for a simple 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 description coverage is 0%: job_id has no explanation anywhere and milliseconds is only implied by the word 'briefly'. The default of 1000ms is left entirely to the schema, and the description gives no guidance on choosing a duration or what job_id refers to.

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 (wait) and resource (browser page state), scoped to page transitions and animations. It also names the natural follow-up sibling, get_page_state, so an agent can place it in the workflow. It does not explicitly contrast itself with other waiting-adjacent siblings, so it falls short of a 5.

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 trigger condition ('page transition or animation') and prescribes the next action ('inspect with get_page_state'), which is genuinely useful sequencing guidance. There are no explicit exclusions (e.g., when a fixed wait is unnecessary or when check_element is preferable), so it is not a 5.

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