ugf_x402_submit_signed

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

No annotations are provided, so description must disclose behavioral traits. It only describes the action without mentioning side effects, success/failure conditions, idempotency, or output behavior, leaving the agent without critical context.

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 succinct sentences, no redundant text. Front-loaded with the primary action, followed by a pairing hint. Every sentence serves a 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?

Given complex nested schema, 5 required parameters, no output schema, and no annotations, the description is too brief. Missing details on input constraints, return values, and behavioral expectations reduce completeness.

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 only 20%, and the description adds no parameter-level information. Critical parameters like valid_after, valid_before, and nested quote fields are unexplained, requiring the agent to infer semantics.

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?

Clearly states action 'Submit a locally-signed x402 payload to UGF', specifying verb and resource. Pairing reference differentiates from sibling tools like ugf_x402_build_typed_data.

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?

Explicitly instructs to pair with ugf_x402_build_typed_data, indicating typical usage sequence. Does not mention when not to use or alternatives, but sufficient context for intended workflow.

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