list_legacy_rate_limits

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

There are no annotations, so the description carries the disclosure burden. It does convey that the operation is a list/read scoped to a zone and that the API is deprecated. However, it does not disclose pagination behavior, response shape, or what deprecation implies operationally (e.g., removal/unavailability), which would matter for a list endpoint.

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 one efficient sentence with no filler. The resource and scope come first, and the deprecation status is delivered as a compact parenthetical that earns its place by changing user behavior.

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 single-required-parameter list tool with no output schema and no annotations, the description is mostly sufficient: it names the resource, scope, and deprecation status. The only meaningful gaps are pagination details and an explicit current alternative, but these are minor for such a simple tool.

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 description coverage is 100%: the schema already documents zone_id as 'The zone ID'. The description adds only 'for a zone', which reinforces the parameter's scope but does not add format, constraints, or additional meaning beyond the schema. Baseline 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 states a clear action ('List') and a specific resource ('legacy rate limiting rules for a zone'), and the parenthetical '(deprecated API)' distinguishes it from current rate-limit tooling such as get_rate_limiting_rules and from the singular get_legacy_rate_limit. An agent can identify what the tool does without opening the schema.

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 '(deprecated API)' provides an implied usage cue that this endpoint should be avoided or used only for legacy cases, but it does not name an alternative or state explicit when-to-use/when-not-to-use conditions. Among the sibling tools, get_rate_limiting_rules and get_legacy_rate_limit exist, but the description does not point to them.

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