LaunchCheck x402

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

No annotations are provided, so the description carries the full burden. It discloses the evaluation process (eight audience lenses, positioning/conversion friction, claims flagging, question prediction, concrete recommendations, fact-preserving rewrite) and the cost. It does not mention rate limits or failure modes, but these are less critical for a non-destructive tool. The transparency is above average.

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 dense paragraph that front-loads the purpose and then enumerates capabilities. Every sentence adds value, though the paragraph could be slightly shortened by removing redundancy (e.g., 'surfaces positioning and conversion friction' is clear). It is well-structured for an AI agent to quickly grasp the tool's function.

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?

Given 7 parameters, all described in the schema, and no output schema, the description covers the main functionality, outputs (fact-preserving rewrite), and cost. It lacks explicit mention of return format or error handling, but the description is sufficiently complete for an agent to understand what the tool returns and when to call it.

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 100%, so baseline is 3. The description provides a high-level overview of what content types are accepted and mentions constraints and context, but it does not add significant meaning beyond the schema's own parameter descriptions. For example, 'constraints' schema already describes factual/legal/brand constraints; the description merely paraphrases. It meets the baseline but does not exceed it.

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 specifies the verb 'review and stress-test' and lists concrete resources (launch messaging, landing pages, etc.), making it clear what the tool does. It also details the outputs (surfaces friction, flags claims, predicts questions, recommends changes, returns a rewrite). With no sibling tools, differentiation is moot; the purpose is specific and unambiguous.

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 explicitly states the tool is for pre-publication review and mentions a cost requirement ($0.50 via x402 on Base). It implies usage timing but does not provide explicit when-not-to-use guidance or alternatives. Given no sibling tools, the omission is minor, but a clearer exclusion (e.g., not for non-marketing copy) would warrant a 5.

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