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

No annotations are provided, so the description carries the full burden. It discloses the structure of the response (each control includes code, title, description, domain), which is helpful. However, it does not mention any side effects, rate limits, or authorization requirements, leaving moderate gaps.

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 concise (two well-structured sentences plus a list) and front-loads the purpose and key usage advice. Every sentence adds value without redundancy.

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 the tool's moderate complexity (2 parameters, one required, no output schema), the description adequately covers the purpose, usage hints, and response structure. It would benefit from mentioning whether the response is paginated or truncated for large frameworks, but it is largely complete for its scope.

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 50%: the description does not explain the 'name' parameter beyond the schema's requirement, but it does describe the result structure. The 'domain' parameter is already described in the schema ('Filter controls by domain name'), so the description adds little beyond that. Baseline 3 is appropriate given moderate coverage.

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-resource pair ('Get all controls for a compliance framework') and clarifies the scope by mentioning optional domain filtering. It also distinguishes this from sibling tools like agent_get_control (single control) and agent_search_frameworks (search, not retrieval).

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 description explicitly advises using the domain filter for large frameworks (e.g., NIST SP 800-53 Rev 5), which helps an agent decide when and how to invoke the tool effectively. However, it does not explicitly state when NOT to use it or mention alternatives among siblings.

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