get_rate_limiting_rules

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

With no annotations provided, the description carries the full behavioral burden. 'Get' implies a read-only operation, and the 'modern WAF rulesets API' note adds useful endpoint context. It does not disclose response shape, error behavior, or whether the zone must already exist, but for a simple read-only tool this is minimally adequate.

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?

A single, tightly worded sentence that states the action, resource, scope, and API variant with no filler. The key differentiator ('modern WAF rulesets API') is placed at the end but earns its place.

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-only tool, the description provides enough context to identify the correct endpoint and scope. Since there is no output schema, a bit more detail about the return shape would help, but the tool is simple enough that the definition is not severely incomplete.

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 single parameter zone_id is already fully described in the schema as 'The zone ID', so the description adds no additional parameter-level meaning. Schema description coverage is 100%, so the baseline score of 3 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?

The description clearly states the action ('Get'), the target resource ('rate limiting rules'), the scope ('for a zone'), and the API generation ('modern WAF rulesets API'). This distinguishes it from legacy rate-limit siblings like list_legacy_rate_limits and get_legacy_rate_limit.

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 parenthetical 'modern WAF rulesets API' implicitly tells the agent this is the modern counterpart to legacy rate-limit tools, providing some usage context. However, it does not explicitly state when to prefer this over related ruleset tools such as get_ruleset or list_zone_rulesets.

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