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

Annotations are absent, so the description carries the full behavioral burden. It does disclose one meaningful trait — the operation costs 0.003 USDC — which is real added value. Beyond that it says nothing about whether signing is irreversible, what permissions the delegator needs, idempotency, or what happens to the bounded scope after signing.

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?

One compact clause, front-loaded with the verb, and the cost is appended rather than buried. No filler sentences. It is arguably terse given the lack of annotations, but terseness itself is not a structure defect.

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 for a paid, signing-style mutation with zero annotations, the description omits prerequisites, auth requirements, and call-site context, leaving real gaps an agent must resolve elsewhere.

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% and a full nested example illustrates the handoff object, so the schema does the heavy lifting. The description's word 'bounded' hints at the scope/budget_atomic/expires_at constraints encoded in the payload but adds no field-level meaning. 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 and resource: 'Sign a bounded agent-task handoff.' An agent can tell this is a signing/receipt operation rather than a policy check or preflight. However, it gives no explicit differentiation from receipt-adjacent siblings like retention_deletion_receipt or delegation_scope_guard.

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 when-to-use guidance is provided. Nothing tells the agent at what point in a delegation flow a handoff should be signed, what prerequisite state must hold, or which sibling tool to prefer instead. The agent is left to infer everything from the name.

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