kroger_login

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states the prerequisite nature and the action itself, but does not describe session handling, authentication outcomes, error behavior, or any security implications. This is a significant gap for a state-changing tool.

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 extremely concise: two short sentences that front-load the action and then add the prerequisite context. Every word earns its place with no redundancy.

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 simple login tool, the description covers the core purpose, required parameters, and the important prerequisite status. However, with no output schema, it does not explain what a successful login returns or how the agent confirms success, nor does it mention session duration or logout-related behavior.

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 provides 100% coverage with descriptions for both parameters ('Kroger account email' and 'Kroger account password'). The description only echoes these fields without adding format, constraints, or additional context beyond the schema.

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 clearly states the action: 'Log in to Kroger account with email and password.' It identifies the specific resource (Kroger account) and distinguishes itself from sibling tools (all other operations are post-login actions).

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 phrase 'Required before most operations' provides clear context for when to use the tool—before using other Kroger tools. It implies using this first but does not explicitly name alternatives or exclusions, which would be unnecessary given the sibling list.

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