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

The annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds useful return-value detail (the four status values, amounts in base units), but says nothing about pagination, ordering, or whether cancelled/filled orders are included in results.

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 tight sentence with the scope and payload fields front-loaded before any detail. It is a noun fragment rather than a full sentence, but nothing in it is wasted.

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 two-parameter read tool with no output schema, the description does the minimum: it tells the agent what comes back. It omits result volume, ordering, and empty-wallet behavior, which an agent would need to plan a call.

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 coverage is 100%: owner and chainId are both documented in the schema, including the enum mapping 8453/4663. The description's 'one chain' phrasing usefully signals there is no cross-chain aggregation, but adds no format or semantics beyond the 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 names a specific resource (a wallet's limit orders on one chain) and enumerates the returned fields (status, filled/remaining amounts in base units). It clearly differs from the write-side siblings place_limit_order and cancel_limit_order, though it never names them explicitly.

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 statement of when to use this tool versus alternatives such as wallet_holdings or cancel_limit_order, and no prerequisites. The read-only nature is only inferable from the verb 'list' in the name.

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