list_page_rules

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

With no annotations, the description carries the behavioral disclosure burden. It states that the operation is a list (read) scoped to a zone, which is useful, but it does not disclose pagination, ordering, response shape, or rate limits, making the transparency only partial.

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, front-loaded sentence with no filler. It is efficient, but slightly underspecified for the broader tool context, so it does not reach the top score.

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?

This is a low-complexity tool with one simple parameter and no output schema, so the description only needs to cover a small surface. However, it omits pagination and return-format guidance and does not mention get_page_rule as the single-item alternative, leaving it minimally adequate but not fully complete.

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% because zone_id has the description 'The zone ID'. The tool description adds no additional parameter meaning beyond what the schema already provides, so the baseline 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 uses a specific verb ('List') and a specific resource ('page rules') scoped to 'a zone', clearly identifying the core operation. It distinguishes from get_page_rule (single fetch) but does not explicitly disambiguate from other zone-scoped rule list tools like list_zone_rulesets.

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 is given about when to use this tool versus alternatives. The sibling set includes get_page_rule, list_zone_rulesets, and many other list_* tools, but the description does not mention any exclusions or point to a better-fit sibling, leaving selection to inference.

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