list_dns_records_tool

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

Annotations are absent, so the description carries full burden. It only says 'List', implying read-only, but does not disclose pagination defaults, rate limits, or that it returns a paginated list. It also doesn't clarify that all filters are optional or that results are ordered by default. No mention of error handling or authentication requirements.

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 with no filler. It is as concise as possible while conveying the core purpose. No unnecessary detail or repetition of schema information. Long enough to be useful, short enough to be instantly parsed.

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?

Given that the schema fully describes parameters and an output schema exists, the description is minimally adequate. However, it lacks any hint about the scope of results (e.g., pagination limits, default sorting) or the fact that it returns a list of records. An agent might not know that it returns a list unless inferred from the name. For a list tool with pagination and filters, a bit more context (like 'returns a paginated list' or 'use filters to narrow results') would improve completeness.

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 100% (every parameter has a description). The description adds no extra meaning beyond what the schema already provides. It lists the tool's purpose but does not elaborate on parameter behavior (e.g., that name/type/content are optional filters, or that page/per_page control pagination). Since schema covers the parameters, 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 clearly states the action (list), the resource (DNS records), and the scope (for a Cloudflare zone). It unambiguously distinguishes from siblings like get_dns_record_tool (single record) and create/update/delete tools. The verb-resource pair is specific and immediately understood.

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 tool versus alternatives. Does not mention that this is the go-to for listing multiple records while get_dns_record_tool is for a specific record. No context on when to apply filters or pagination. The description is purely declarative with no usage scenario.

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