vast42_create_universal_ad_id

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

No annotations are provided, so the description must carry behavioral transparency. It only states the action ('create') without disclosing side effects, required permissions, idempotency, or what happens if an ID already exists. The description adds no context beyond what the tool name implies.

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 description is a single, front-loaded sentence with no redundant words or filler. It efficiently states the action and resource, making it highly scannable for an agent. There is no wasted 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?

For a create operation with no output schema and no annotations, the description is too minimal. It does not explain what a universal ad ID is, whether any parameter combinations are required, or what the expected response would be. This leaves the agent without enough context to confidently invoke the 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?

The input schema provides descriptions for all three parameters (name, id_value, id_registry) achieving 100% schema_description_coverage, so the description need not repeat parameter syntax. The description itself adds no additional parameter meaning beyond the schema, warranting the baseline score of 3.

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 'Create a VAST 4.2 universal ad ID' uses a specific verb ('create') and identifies the resource ('VAST 4.2 universal ad ID'), clearly distinguishing this tool from sibling tools that update, delete, get, or list the same entity. The 'VAST 4.2' qualifier also differentiates it from non-versioned ad creation tools.

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?

No usage guidance is provided. The description does not state when to use this tool versus alternatives, mention any prerequisites, or indicate whether this is the preferred method for creating a universal ad ID. There are no exclusions or alternative tool references.

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