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

With no annotations, the description carries the full behavioral burden. It usefully discloses the signing model ('hosted signing, key used for this call only and never stored'), which is real security context, but says nothing about idempotency, what the acknowledgement mutates, error conditions, or whether it can be retried.

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 the purpose front-loaded and the alternative signing path parenthetically attached. Minimal waste, though 'once it really arrived' is colloquial where a concrete condition would be more useful.

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 a small 2-parameter, no-annotation, no-output-schema tool it covers purpose and signing behavior, but leaves the meaning of 'task' and the effect of acknowledging a payment unexplained. Adequate but with clear gaps.

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 coverage is only 50%. The description echoes the secret parameter's existing schema note (call-only, never stored) without adding anything, and never explains what the required 'task' (a 64-hex identifier) represents. The undocumented parameter is left entirely opaque.

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+resource ('acknowledge a payment') and references the sibling alternative (ronin_submit) for the self-signing path. The 'once it really arrived' framing hints at the trigger condition, though what the acknowledgement actually does on-chain remains slightly opaque.

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?

Gives a clear condition for use ('once it really arrived') and names an explicit alternative path ('or sign yourself with ronin_submit'), which is good routing guidance. It does not state when-not-to-use or prerequisites, but the context is clear.

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