MCP Datadog Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. While 'Get' implies a read-only operation, the description doesn't clarify whether this requires specific permissions, returns real-time or cached data, has rate limits, or what format the output takes. For a tool with zero annotation coverage, this minimal description leaves key behavioral aspects unspecified.

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, efficient sentence that directly states the tool's purpose without unnecessary words. It's front-loaded with the core action and resource, making it easy to parse. Every part of the sentence contributes essential information, meeting the ideal standard for conciseness.

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 complexity (fetching IAM permissions, which could involve security-sensitive data), the description is incomplete. No annotations exist to cover behavioral traits, and there's no output schema to describe the return format. The description doesn't compensate by explaining what 'all' permissions entail (e.g., JSON list, policy documents) or any constraints, leaving the agent with insufficient context for reliable use.

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?

The tool has 0 parameters, and schema description coverage is 100% (empty schema). The description doesn't need to explain parameters, and it correctly implies no inputs are required. A baseline of 4 is appropriate since there are no parameters to document, and the description aligns with this by not mentioning any.

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 tool's purpose: 'Get all AWS IAM permissions required for the AWS integration.' It specifies the verb ('Get'), resource ('AWS IAM permissions'), and context ('for the AWS integration'), making the purpose unambiguous. However, it doesn't explicitly differentiate from sibling tools, as there are no obvious direct alternatives in the sibling list for this specific permission-fetching function.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., whether an AWS integration must already be configured), use cases (e.g., for security auditing or setup verification), or exclusions. With many sibling tools for AWS integration management, the lack of contextual guidance is a significant gap.

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