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

No annotations, so the description carries the full behavioral burden. It discloses the cost (0.003 USDC) and that the handoff is 'bounded', which implies a scoping constraint, but says nothing about permission requirements, irreversibility, idempotency, or what happens if payment fails.

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?

A single short sentence with no wasted words, and the action verb plus the payment cost are front-loaded. Brevity is efficient here rather than merely under-specified, though it verges on too terse.

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?

An output schema exists, so return values need not be described, but this is a payment-bearing signing operation with zero annotations and the description leaves the key operational context (payment flow, bounded scope, failure handling) unstated. For a tool with monetary and signing implications, that is a significant gap.

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 reported at 100%, so the structured schema is expected to document the required 'handoff' parameter. The description adds no syntax, format, or content guidance for that parameter beyond restating that a handoff is being signed, so the baseline 3 applies.

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 ('Sign') and resource ('bounded agent-task handoff'), which is enough to distinguish it from the many guard/evidence siblings. It does not, however, name any sibling or clarify how it differs from receipt-producing tools like delivery_evidence or retention_deletion_receipt.

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?

No indication of when to call this versus alternatives, no prerequisites, no exclusions. The only usage-adjacent detail is the price, which hints the call is paid but does not say under what circumstances a handoff should be signed.

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