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

Annotations already declare write, idempotent, openWorld and non-destructive; the description adds genuine context beyond them: a project API key is required, the call returns a private respondent link and shareText, and retries must reuse idempotencyKey. 'voiceEligible is true' is a dangling assertion with no explanation, which slightly muddies the behavioral picture.

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 sentences are mostly earning their place, but the ordering is scattered: return values, then config internals, then mode behavior, then auth, then retry, then an instruction not to invent answers. The fragment 'voiceEligible is true' adds noise rather than information.

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 a large nested input schema, no output schema and zero schema descriptions, the description should carry more. It covers the returned artifacts and a handful of config fields but omits much of the required field structure (field types, promptDetail, options), which an agent must infer from the raw schema.

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% and the schema is deeply nested, so the description must compensate. It clarifies promptTitle, branding.fromName/purpose/logoUrl, theme hex colors and the mode default, but leaves required members like config.id, config.title, fields[].id/label/type/required/promptDetail entirely unexplained.

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 first sentence states a concrete verb and outcome: stores an interview and returns a private respondent link plus shareText. It is distinguishable from get_handoff/delete_handoff, though the name 'handoff' never reappears in the description, so the link between tool name and 'hosted interview' relies on the title.

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?

Gives real selection guidance: omitted mode creates a voice interview, set config.mode to text only for a written interview, and reuse the same idempotencyKey on retries. It does not say when to prefer this over sibling tools such as prepare_form or get_template, so the routing picture is incomplete.

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