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

No annotations are provided, so the description carries the full burden. It reveals only that a sha256 result_hash is returned; it says nothing about the required wallet/nonce/signature authorization flow, whether submissions are idempotent or final, what happens on invalid signatures, or whether the result can be resubmitted. For a signed write operation this is a major gap.

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 short clauses with the action front-loaded and no wasted words. However, the brevity comes at the cost of substance, so it reads as under-specification rather than disciplined conciseness.

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 mutation tool with no annotations, no output schema, and six undocumented parameters in a cryptographic signing flow, the description should explain preconditions, required credentials, and result semantics. It only names the role and return hash, leaving an agent unable to call it correctly with confidence.

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?

Six parameters, five required, at 0% schema description coverage, and the description explains none of them. Fields like id, uri, nonce, wallet, and signature are entirely opaque, and the description does not compensate with any format, source, or purpose information.

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 ('hands back the result') and names the actor role ('Seller'), which distinguishes it from buyer-side siblings such as make_offer or accept_offer. It does not explicitly name adjacent tools like accept_task or dispute_task, so it stops short of full sibling differentiation.

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?

There is no indication of when in the task lifecycle this should be called, what preconditions exist (e.g. an accepted task), or what alternatives exist if submission fails. 'Seller hands back the result' implies a context but never states it as guidance.

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