start_kroger_cart_auth

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions returning an authorization URL and cart write access, but does not disclose side effects like initiating an external OAuth flow, requiring user interaction, or invalidating prior auth states. This is a significant transparency gap for a tool with no annotation support.

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 description is a single sentence that is front-loaded with the verb 'Start' and contains no filler words. Every word contributes to the meaning, making it highly concise and well-structured.

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 no-parameter tool with an output schema, the description is minimally sufficient. However, it does not mention the broader OAuth flow context—e.g., that the user must visit the authorization URL and then use complete_kroger_cart_auth to finish. Given the sibling tools, adding this context would improve completeness for an AI agent.

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 has zero parameters and schema description coverage is 100%. Per the rubric, a zero-parameter tool receives a baseline of 4. The description adds no unnecessary parameter information, which is appropriate.

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?

Description uses the specific verb 'Start' with the resource 'Kroger OAuth' and clearly states the purpose (cart write access) and output (authorization URL). It distinguishes from sibling tools like complete_kroger_cart_auth by indicating this is the initialization step.

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 implies usage when OAuth authorization for cart write access is needed, but does not explicitly state when to use this tool versus alternatives such as complete_kroger_cart_auth or kroger_cart_auth_status. No exclusions or prerequisites are mentioned, leaving usage implied rather than explicit.

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