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

With no annotations, the description carries the full behavioral burden. It does disclose two genuinely useful traits — the operation is free and rate-limited to 3 drafts/day per IP — which is real value. However, it omits the mutation/creation semantics, what the call actually returns, and whether drafting is asynchronous given the video_status sibling, so the disclosure is partial.

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?

Two short sentences, zero filler, with the core purpose front-loaded and the cost/rate-limit constraint appended. Every clause carries information an agent can use.

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?

For a three-parameter tool with 0% schema coverage, no annotations, and no output schema, the description should explain the parameters and the likely async relationship to video_status. It covers purpose and quotas but leaves the agent guessing about inputs and return behavior.

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% across three parameters, so the description must compensate and largely does not. It implies release_notes as the source, but product_name is only hinted at and the optional email parameter is completely unexplained (purpose, whether it is for delivery or identity) in both schema and description.

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 states a specific verb (draft), a specific artifact (60-second launch-video script), and the source input (release notes), so the agent knows exactly what this produces. It does not explicitly name or contrast with its only sibling, video_status, though the distinction is implicit from the wording.

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?

Usage is implied by 'from release notes' — you bring release notes and get a script draft. There is no explicit when-to-use/when-not guidance and no mention of how this relates to the video_status sibling (e.g., whether drafting starts an async job you must poll), leaving the workflow to inference.

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