x402_set_payment_limit

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

With no annotations provided, the description carries the full burden. It doesn't disclose whether limits apply immediately, require authorization, or affect existing limits. The largePaymentWarning parameter is not mentioned, and there is no information about side effects or response 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?

Two sentences with a clear, front-loaded purpose. The second sentence is slightly redundant but still concise and free of fluff.

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?

The tool is simple with no output schema, but the description omits one of the three parameters (largePaymentWarning) and doesn't explain behavior when parameters are optional. It's adequate for basic understanding but not fully complete.

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 input schema covers 100% of parameters with descriptions, so the baseline is 3. The description adds minimal value by naming the two main limits but omits the largePaymentWarning parameter, which reduces its contribution.

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 tool sets payment limits for security, specifying maximum single payment and daily spending limits. This distinguishes it from sibling tools like x402_get_payment_limits and x402_set_pricing.

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 phrase 'for security' implies when to use it, but it doesn't explicitly contrast with alternatives or provide when-not-to-use guidance. There is no mention of related tools like x402_get_payment_limits.

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