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

The description goes beyond the all-false annotations by explicitly stating 'This never activates the style' and describing the draft as short-lived and private. It does not mention auth or rate limits, but the most critical behavioral guarantee for a preview tool is clearly disclosed.

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 two sentences with no fluff, front-loading the main action and the non-activation guarantee, then giving a clear follow-up instruction. Every sentence earns its place.

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?

The description covers the essential workflow: validate, create a draft, show the owner the approval summary and review URL, then call set_artifact_style. It mentions the output format in passing and the schema handles definition details, so the description is sufficiently complete for a preview tool, though it could mention validation failure handling.

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?

With 0% schema description coverage, the description was expected to compensate for the complex nested 'definition' parameter, but it only labels it as a 'complete provider-neutral artifact style definition' without enumerating required fields or constraints. The schema itself offers deep descriptions, so the description adds minimal semantic value beyond what structured data already provides.

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 clearly states the tool validates a complete provider-neutral artifact style definition and creates a short-lived private review draft, and explicitly distinguishes it from set_artifact_style by noting it never activates the style. An agent can tell exactly what this tool does relative to its siblings without opening the schema.

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 description instructs the agent to show the returned approval summary and review URL to the owner before calling set_artifact_style, naming the exact successor tool and the correct sequence. This provides explicit when-to-use guidance and a clear workflow, leaving no ambiguity about ordering.

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