page_builder_preview

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

With no annotations provided, the description fails to disclose behavioral traits like whether the operation is read-only, requires an existing session, or has side effects. It only states the output but not the underlying behavior.

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 very short and front-loaded with the main action. However, the 'Args' line repeats schema information, lightly wasting space. Overall, it is concise but could be more compact.

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 simple tool with one parameter and an output schema, the description is minimally adequate but does not explain prerequisites (e.g., session must exist), error conditions, or return value details beyond the 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?

The schema has 0% description coverage, and the description adds minimal meaning by labeling 'session_id' as a session ID. This is slightly beyond the schema's bare type info, but lacks constraints or additional context.

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 states a specific verb ('Get') and resource ('preview URL for a page builder session'), clearly distinguishing it from sibling tools like 'page_builder_create' or 'page_builder_deploy' which focus on creation or deployment.

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?

While the description implies use when a preview URL is needed, it provides no explicit guidance on when to use this tool versus alternatives like 'page_builder_chat' or 'page_builder_list_sessions'. No when-not-to-use or alternative references are included.

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