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

No annotations are provided, so the description carries the burden. 'List' implies a read-only operation, but the description does not explicitly state side-effect-free behavior, return format, or any limitations. The mention of 'currently active' indicates state-dependent results, which is useful context.

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 action and resource, then gives the rationale. Every clause earns its place with no fluff.

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 read-only list tool with no parameters, the description provides the essential information: what it lists, for which project, and why. It lacks explicit return structure details, but the nature of 'guardrail rules' gives some implicit expectation, and no output schema is provided.

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 no parameters (0 declared), so the baseline is 4. The description adds meaningful context by noting the API key ties the request to a specific project, which explains how the tool knows which guardrails to list.

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 (List), the resource (currently active guardrail rules), and the context (Gateplex project tied to the API key). It also explains the intended use for self-checking, which distinguishes it from sibling tools like get_feed or log_intercept.

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?

It specifies a clear context: use before executing a planned action to self-check guardrails. However, it does not explicitly mention when not to use it or compare to alternatives, though the sibling tools are clearly different in function.

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