eudr_agent_eip3009_pay

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

With no annotations, the description carries the full burden and does add real context: gasless, 1-turn, zero native gas required by the caller. However, it omits critical behavioral facts for a settlement tool — irreversibility, what happens on signature/nonce failure, and whether funds can be recalled.

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 tight sentences with zero filler, front-loading the core action and following with the key differentiator (gasless, no native gas). Nothing redundant.

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 an 8-parameter, 5-required payment tool with no annotations and no output schema, the description covers the mechanism but leaves gaps: no return/failure semantics, no confirmation of finality, and no guidance on the required signature/valid_before workflow. Adequate but incomplete.

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 all 8 parameters are already documented in the schema, and the baseline is 3. The description adds only the EIP-3009 authorization framing and nothing about parameter formats or constraints beyond the schema.

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?

States a specific verb and resource ('Executes ... USDC settlement') and names the mechanism (EIP-3009 transferWithAuthorization), which distinguishes it from generic payment siblings. It does not explicitly contrast with close siblings like eudr_agent_micro_pay or eudr_create_payment_order, so an agent must infer the boundary.

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 says what the tool does but never states when to choose it over the many sibling payment tools (micro_pay, create_payment_order, escrow flows). No preconditions, exclusions, or alternative routing are given.

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