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

Annotations already cover the safety profile (readOnlyHint, destructiveHint=false, idempotentHint, openWorldHint=false), so the bar is lower. The description still adds real context beyond the annotations: non-custodial, the desk never sees or holds keys, returns quotes and UNSIGNED transactions only, and is education-only. It is a static guide, so return-format disclosure is minor.

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 definition is dense but front-loaded: the core action (create keypair, fund, sign) leads, followed by scoping constraints. Every sentence adds value, though the single long opening sentence packs several clauses together.

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 zero-parameter, read-only guide with no output schema, the description sufficiently explains what it produces (steps and code) and the non-custodial constraints that matter to an agent. Nothing critical to calling it correctly appears missing.

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?

The tool takes zero parameters, which sets the baseline at 4. The description correctly carries no parameter semantics because there are none to explain.

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 names a specific deliverable (exact steps and @mysten/sui code) and a concrete outcome: creating a Sui Ed25519 keypair locally, funding it with SUI/USDC, and signing/submitting transactions. This is unambiguous and clearly distinct from the many build_*_tx and get_* market tools that make up the sibling set.

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 establishes the context of use ('for an agent to create its OWN ... keypair') and clarifies the scope ('Spot only, no leverage'), which routes an agent here when it needs first-time wallet bootstrapping. It does not, however, give an explicit when-not or name an alternative sibling, so it stops short of full guidance.

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