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

Beyond the annotations, the description discloses that the call creates a profile, returns specific URL artifacts, and that enabling social_account_ids triggers publishing and requires the Allow posting permission. It does not go into failure modes or side effects beyond publishing, but none of the annotations are contradicted.

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?

Three short sentences, each earning its place: the core action, the returned artifacts, and the important publishing caveat. The purpose is front-loaded and no filler is present.

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 create tool with only four parameters, full schema coverage, an output schema, and sibling differentiation, the description covers the essential call-time knowledge: what is created, what is returned, and the one high-stakes behavioral toggle. Nothing critical is missing.

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?

The schema already covers all four parameters, so the baseline is 3. The description adds real semantic value for delivery.social_account_ids by explaining that it enables social delivery and that publishing then requires Allow posting, which is not inferable from the bare schema type.

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?

Description opens with a specific action and resource: 'Create a Studio profile on this API key.' It also names the returned artifacts and the social-delivery mode, which separates it from sibling studio tools like studio_card or studio_schedule.

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?

The intended use is clear: call this to create a Studio profile and obtain integration hook URLs on the current API key. It also explicitly states the condition and permission needed for social delivery ('requires Allow posting'), though it does not name alternative tools or when-not-to-use scenarios.

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