list_request_header_rules_tool

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

No annotations are supplied, so the description carries the burden; 'List' reasonably implies a non-destructive read, and it does disclose the return shape. However, it says nothing about permissions, rate limits, or pagination, which is a gap for a listing tool whose safety profile is only implied.

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?

Front-loaded with the purpose, then a compact Args/Returns structure. Slightly verbose section headers for a single-parameter tool, but every line is informative and nothing is wasted.

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 one-parameter read tool with an output schema already present, the description covers the parameter and the general return nature. The main omission is any usage/alternative framing, but nothing needed to invoke it correctly is missing.

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 coverage is 0% (the schema only declares type string), so the description must compensate, and it does by documenting the single parameter as a 'Zone ID (32-character hex string)', adding format constraints the schema lacks.

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 states a specific verb ('List') and resource ('request header modification rules'), which is unambiguous. It does not explicitly name the write counterpart (set_request_header_rules_tool) or the sibling list_response_header_rules_tool, so it differentiates only implicitly through the name.

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?

No guidance on when to use this versus set_request_header_rules_tool or list_response_header_rules_tool. There is no mention of prerequisites, scope, or when a list is preferable to a get/set call.

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