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

With no annotations or output schema, the description carries the full behavioral burden; it does disclose valuable return semantics (a hash commitment, and what it commits to), which is genuinely useful. However, it says nothing about authentication requirements, behavior when the order is undelivered, or error cases, leaving real gaps for a read tool with zero annotation coverage.

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 well-formed sentence with the purpose front-loaded and zero wasted words; the trailing clause about link-text hashing earns its place by defining the return value.

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?

With no output schema, the description does the important job of describing what comes back and why it matters, which is the biggest gap covered. But it leaves parameter meaning and failure/authorization behavior unaddressed, so it is only partially complete for a 2-parameter lookup tool.

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 0%, so the description must compensate for both parameters and adds nothing — orderId is left unexplained and chainId is completely opaque (which chain, default behavior, why it's optional). For a tool whose whole value is an on-chain lookup, this is a meaningful omission.

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 — the on-chain SHA-256 commitment of a delivered order — and clarifies exactly what that commitment hashes (uploaded file or external link text). It is far more specific than a generic 'get' tool, though it never names the confusingly similar sibling get_deliverable to differentiate itself.

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 phrase 'so the buyer can verify the deliverable' implies the use case (delivery verification) but gives no explicit when-to-use vs. when-not guidance and never points to get_deliverable or get_order_status as alternatives. Usage must be inferred from the stated goal.

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