prerolltubes-mcp

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

No annotations are present, so the description must fully disclose behavior. It only states the action ('answers questions') without revealing any limitations, such as whether it draws from a static FAQ, how it handles out-of-scope or ambiguous queries, or any other behavioral traits. This is a significant gap for a tool with zero annotation support.

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, focused sentence that leads with the action verb and immediately specifies the scope. There is no redundant or extraneous content; every word contributes to understanding the tool's purpose.

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 string parameter, no output schema, and no annotations, the description provides the basic purpose but lacks details about answer behavior, edge cases, and expected input style. It is adequate for a simple FAQ tool but not complete enough for an agent to fully predict outcomes without additional context.

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 coverage is 0% (the 'question' parameter has no schema description). The description indirectly defines the parameter by stating the kinds of questions it answers, which adds some meaning. However, it does not explicitly describe the parameter's expected format, constraints, or that it must be a natural-language question. It partially compensates for the missing schema coverage but leaves room for ambiguity.

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 a specific verb ('Answers') and resource ('questions about Pre-roll Tubes Co.'s products, pricing, ordering, shipping, payment, and company practices'). It is unambiguous about the tool's function. However, there are no sibling tools to differentiate against, so it does not achieve the full 5 that requires explicit sibling distinction.

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 implies the tool is for questions within the listed categories, which gives context. But it does not explicitly state when to use the tool versus alternatives (none provided) or when not to use it (e.g., out-of-scope questions). Guidance is only implied, not explicit.

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