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

Annotations already indicate readOnlyHint and non-destructive, so the description adds value by specifying the "newest first" ordering and the special behavior of returning dashboard setup instructions when no key is present. This gives the agent awareness of an edge case beyond just a read operation.

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?

Two sentences, direct and information-dense. The main purpose is stated first, with a valuable caveat in the second sentence. No whitespace or 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?

For a simple list tool with two optional parameters and clear annotations, the description covers the core function, ordering, and a critical edge case. It doesn't detail the response structure, but that is not fully required given no output schema and the simplicity of the expected result.

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?

Both parameters limit and offset are fully described in the schema with defaults and constraints, so the description doesn't need to add anything. The description provides no additional parameter context, matching the baseline for high schema 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 the specific verb "List" and identifies the resource as "signature requests" scoped to "configured Kamy account" with "newest first" ordering, clearly distinguishing it from sibling tools like list_templates or create_signature_request.

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 implies usage for listing signature requests but does not explicitly mention alternatives or exclusions, such as using list_templates for templates. The "without a key" note provides some contextual guidance but not comparative guidance.

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