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

With no annotations, the description must carry the full behavioral burden. It notes an authorization requirement and x402 header distinction, but does not disclose whether this is a mutation, whether the payload is destroyed or persisted, idempotency, error behavior, or other side effects.

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?

The description is a single compact sentence with no wasted words, so it is structurally concise. However, it is under-specified and front-loads cryptic jargon rather than useful selection or invocation context.

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?

Given four parameters, a nested object, no annotations, no output schema, and 0% schema coverage, the description is far too thin. It adds only an auth note and an x402/MCP implementation remark, leaving core semantics and parameter behavior undocumented.

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?

There are four parameters (payload, sensitivity, terms, delivery_receipt_required) with 0% schema description coverage, including a nested 'terms' object. The description adds no meaning for any parameter, leaving the agent with no semantic guidance beyond the raw 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?

The description gives a verb and object ('Originate a sealed payload') but 'sealed payload' is unexplained jargon, and it does not distinguish this tool from siblings like custodian_standing, extend_custody, or grade_chain. An agent knows it originates something, but not concretely what.

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?

It mentions 'trial or pass allowance over MCP; x402 needs the HTTP header' and 'Requires Authorization,' but provides no explicit when-to-use guidance or alternatives. The agent is not told under which conditions to choose this tool versus its siblings.

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