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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds that the output is a 'safe' preview and mentions the canonical web tool URL, which is modest extra context, but 'evidence-bounded result' is unexplained jargon rather than genuine behavioral disclosure.

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 sentences, front-loaded with the concrete artifact (1200×630 SVG). Nothing is padded, though 'evidence-bounded result' is filler that does not earn 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?

An output schema exists, so return-value explanation is not required, and the tool is simple at two required params. Still, the description omits any usage context or the meaning of the two inputs, leaving it merely adequate for an export 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?

Schema description coverage is 0%, so the description carries the burden of clarifying the two parameters. It names 'product name and tagline' implicitly and calls them 'bounded', but adds no format, content, or constraint meaning beyond the minLength/maxLength already in the schema.

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?

States a specific verb (Export) and resource (a 1200×630 SVG preview) sourced from a product name and tagline. That is concrete enough that an agent knows exactly what artifact is produced. It does not, however, differentiate itself from any sibling concern, and no sibling here overlaps enough to matter for routing.

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?

There is no explicit when-to-use or when-not-to-use guidance, and no alternative tool is named. The phrase 'from a bounded product name and tagline' implies the input context, but the agent must infer when this preview is the right call versus other toolfound outputs.

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