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

No annotations are provided, so the description carries the full behavioral burden. It helpfully discloses the return contents (Secret, URL, QR-Code) in the absence of an output schema, but it omits the sensitive nature of exposing a TOTP secret, whether the call is repeatable, and whether it requires an authenticated session beyond the parameter names.

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 opening sentence 'Returns the wallet's Google Authenticator registration.' is duplicated verbatim, which is clear waste. The remaining docstring-style @param/@return structure is functional and front-loaded, but the redundancy costs it.

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 correctly describes the returned object, and all three params are covered, so the core is there. However for a security-sensitive tool it lacks setup prerequisites, sibling routing to wallet_google_auth_verify, and any note on the sensitivity of the returned secret.

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, and it does: all three required params are documented with meaning and provenance (token and wallet_fk come from /access/login, api_key is the application key). Only missing detail is format validation or constraints.

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: it returns the wallet's Google Authenticator registration. An agent can tell it fetches registration data (Secret/URL/QR) rather than verifying a code, though it never explicitly contrasts itself with the sibling wallet_google_auth_verify.

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?

No when-to-use guidance, no prerequisites such as whether the wallet must already have Google Auth registered, and no statement about when to prefer wallet_google_auth_verify instead. The only context is the @param list.

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