complete_login_in_chrome

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

No annotations are provided, so the description must disclose behavior itself. It states the required input format and implies the action completes login, but it does not discuss session/auth side effects, idempotency, or the single-use nature of the callback.

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 concise sentence conveys the entire purpose and the critical input requirement, with no padding or wasted words.

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?

The tool has a clear two-parameter contract and uses existing login context, so the description is adequately complete for selecting and invoking it. Some behavioral details (e.g., what a successful completion returns or whether it invalidates a previous session) are absent, but they are not essential for basic usage.

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 already covers both parameters with meaningful descriptions (storeUrl same as login_in_chrome; callbackUrl includes code and state). The description adds no parameter details beyond that, so the baseline 3 applies.

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 uses a specific verb ('Complete') and identifies the resource ('login_in_chrome flow') and key input ('callback URL'), making its purpose clear and distinguishing it from the sibling login_in_chrome, which starts the 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?

The description provides clear context: this is for completing the flow with the full callback URL copied from Chrome's address bar. It does not explicitly name alternatives or when-not-to-use, but the sibling set makes the role clear.

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