get_preview_url

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

The description implies a write operation ('Build') and a read operation ('return the URL'), but does not disclose behavioral traits such as idempotency, side effects, permissions required, or whether the URL expires. With no annotations, this is a significant gap.

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 concise at one sentence with no waste. However, it lacks structural elements like examples or distinct sections, which would improve usability.

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 tool with one parameter and no output schema, the description is incomplete. It omits critical context such as whether the preview bundle is temporary, if building it is expensive, or what the URL format looks like. An AI agent would lack sufficient information to use it correctly.

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 single parameter project_id is not described beyond its schema definition. Since schema description coverage is 0%, the description should compensate by explaining the parameter's role, but it does not. The parameter name alone provides minimal guidance.

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 action ('Build a preview bundle') and the output ('return the URL'), which distinguishes it from sibling tools like accept_preview. However, it does not elaborate on what a 'preview bundle' entails, leaving some ambiguity.

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 guidance is provided on when to use this tool versus alternatives. For example, it does not specify if this should be called before accept_preview or how it relates to other project preview tools.

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