Answer security question and submit password

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

No annotations are present, so the description carries the burden of behavioral disclosure. It reveals both possible response statuses and the follow-up branch, which is meaningful context beyond the bare action. It does not mention failure/error responses or side effects of the remember flag, but the core login behavior is transparent.

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?

Three compact sentences, with the step context front-loaded before the success/OTP branch. Every sentence contributes useful information and there is no filler.

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?

Since there is no output schema, the description properly supplies the key response shapes and the OTP branch instruction. It also anchors the tool in the 3-step login sequence. Minor omissions around error responses keep it from being fully complete.

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 input schema already documents all four parameters, including the remember flag's Keychain behavior, so the baseline is 3. The description adds only that the security answer and password are what completes the login, without adding extra parameter-level meaning.

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 the specific action: complete the login with the security answer and password, and labels it as Step 2 of 3. This clearly distinguishes it from bg_login_start and bg_login_otp, so an agent can tell where it fits in the auth flow.

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?

Explicitly says what to do when the response is otp_required: ask the user for the code and call bg_login_otp. This gives the agent a direct rule for choosing the correct next tool, with no ambiguity.

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