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

No annotations are provided, so the description carries the full burden. It implies a side effect ('prepare live browser') and a return payload, but says nothing about permissions, whether an already-open preview is replaced, idempotency, or failure modes — all of which matter for a tool that spawns a browser session.

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?

It is a single efficient sentence with no filler, which is structurally fine. However, its brevity comes at the cost of under-specification rather than economy — the one sentence carries little actionable content.

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 annotations, no output schema, and a close sibling (refresh_live_preview), the description should explain the preview lifecycle and what the returned artifact URLs are for. Instead it leaves an agent unable to tell this apart from the refresh tool or to anticipate what comes back.

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 both 'captureJobId' and 'notification_message' are fully documented in the input schema. The description adds no additional meaning about how the capture job relates to the preview or how the notification message is used, which is the correct baseline when the schema does the work.

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 has a verb and resource ('prepare live browser') and mentions a return value ('teach-mode artifact URLs'), but both phrases are idiosyncratic jargon that an agent without domain knowledge cannot decode. Critically, it never distinguishes itself from the sibling 'refresh_live_preview', which sounds like it operates on the same object.

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?

There is no statement of when to call this versus 'refresh_live_preview', 'browser_control', or 'create_capture_job' — all plausible alternatives in the sibling list. No prerequisites (e.g. whether a capture job must already be active) are given.

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