verify_x402_proof

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

No annotations are provided, so the description carries full burden. It discloses the verification outcome format but lacks critical behavioral details: whether this requires authentication, rate limits, network latency expectations, error conditions, or what happens with unconfirmed transfers. For a verification tool with zero annotation coverage, this is insufficient.

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?

Single sentence efficiently conveys purpose, parameters, and outcome with zero waste. Front-loaded with the core action ('verify'), followed by parameter context and return value. Every word earns its place.

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 2 parameters, no annotations, and no output schema, the description is minimally complete for a verification tool. It covers the basic purpose and return format but lacks behavioral transparency details. The absence of output schema means the description should ideally explain more about response structure beyond {verified: true}.

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 50% (only 'proof' has a description). The description adds meaningful context: 'proof' is clarified as 'Base64 payment payload from X-Payment header' (matching schema) and 'network' is implicitly explained through the verification context. With 2 parameters and partial schema coverage, the description compensates adequately but doesn't detail network enum values.

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 specific action ('verify'), resource ('base64-encoded x402 payment proof'), and outcome ('returns {verified: true} if the proof corresponds to a confirmed on-chain transfer to the tenant's payout address'). It distinguishes from siblings like 'verify_payment' by specifying the x402 proof type and network verification context.

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 usage context (verifying payment proofs against networks) but doesn't explicitly state when to use this tool versus alternatives like 'verify_payment' or 'verify_ap2_payment'. It mentions the tenant's payout address but provides no guidance on prerequisites or exclusions.

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