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 does not disclose whether a session/token is established, whether MFA is required, or any rate-limit/auth constraints, offering only the vague equivalency to "website, API and CLI."

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 sentences are appropriately sized and front-loaded, but the content is under-specified rather than information-dense, so the brevity does not translate into efficient communication.

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 login tool with no output schema and no annotations, the description should at minimum explain what success returns (session/token) and that two-step authentication may be required. These omissions leave the agent without needed context.

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 only 33% (just the code parameter), and the description adds no parameter detail at all. It neither explains the email/password requirements nor compensates for the undocumented parameters.

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 opens with "SAGOT account.login," which merely restates the tool name rather than stating a specific verb and resource goal. It never explicitly says what the tool accomplishes or how it differs from siblings like account_register or account_logout.

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?

The claim that it uses "the same authorization and validation as website, API and CLI" weakly implies credentialed sign-in, but gives no when-to-use guidance, no prerequisites, and no contrast against account_register, account_logout, or account_me.

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