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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered by structured data. The description adds the capture prerequisite, which is real behavioral context, but says nothing about pagination, result limits, or what an empty list means.

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?

One compact sentence with the resource stated up front and the prerequisite parenthetically attached. No waste, though it is terse enough to omit useful routing detail.

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 simple one-parameter read tool with strong annotations and no output schema, the definition is minimally adequate. It omits any hint of result shape, pagination, or how it relates to read_request, which would help an agent choose correctly.

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% with a single required subdomain_id, so the schema carries the param documentation. The description adds only that the listing is scoped to a subdomain, which mirrors the schema rather than extending it, matching the baseline 3.

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?

Names a specific verb (List) and resource (captured HTTP requests) scoped to a subdomain, which is clear enough for an agent to act on. It does not explicitly differentiate itself from the sibling read_request, but the plural 'List' vs singular 'read_request' distinction is inferable.

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?

Provides one concrete prerequisite ('requires capture to be enabled'), which is genuine usage context. However, it gives no guidance on when to use this versus read_request for fetching a single request, leaving the selection to inference.

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