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

No annotations are supplied, so the description carries the full behavioral burden. It conveys valuable entity semantics — these are human co-signers tied to 1/2 Safes and may carry labels/purposes — but says nothing about auth requirements, pagination, ordering, or whether an empty result is possible. Read-only is only implied by the verb 'List'.

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 compact sentences with the core action front-loaded and the clarifying domain detail second. Every clause earns its place; nothing is padded.

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 tool with no output schema, the description gives enough semantic grounding to know what the returned entries represent. Minor gaps remain — result shape, ordering, and pagination are unaddressed — but nothing critical to invoking it is 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, so the baseline of 4 applies. The description correctly implies no filtering inputs are needed, though it does not explicitly state that results are scoped automatically to 'this user' (it implies it).

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 (List) and resource (this user's saved recovery wallets), and adds domain context that disambiguates it — human co-signers for default 1/2 Safes, with optional labels. The verb alone separates it from siblings set_recovery_owner and remove_recovery_owner, so an agent can pick it without opening another schema.

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 explicit when-to-use statement, no prerequisites, and no named alternatives. The remark that 'users often keep several for different vaults' hints at why the data matters but does not tell the agent when to call this versus set_recovery_owner or get_safe_defaults.

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