paybot_pay

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

With no annotations, the description must carry the behavioral burden. It does disclose useful traits: default token, idempotency caching semantics, and that the response includes a transaction hash and commission breakdown. However, for a financial mutation it omits irreversibility, permission/auth requirements, and any spending-limit interaction.

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?

Three short sentences, front-loaded with the action and object, then return values, then optional features. No filler or redundancy.

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?

No output schema exists, and the description helpfully summarizes returns (tx hash, commission breakdown). But for a 7-parameter payment tool with no annotations, it leaves out important context an agent needs: irreversibility, required setup, and how it relates to paybot_set_spending_limit or pool tools.

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 the schema already documents all seven parameters including defaults, network CAIP-2 format, and idempotency key. The description only echoes the USDC default and idempotency, adding no syntax or constraint detail 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: 'Make a payment ... for an API, service, or resource,' and notes default token USDC and return contents. It is clearly distinguishable from siblings like paybot_balance or paybot_history, though it doesn't name any sibling explicitly.

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 never says when to use this versus alternatives such as paybot_set_spending_limit or paybot_pool_allocate, nor does it state prerequisites (e.g., registration or spending limits). Usage is only implied by the object of payment.

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