MCP Datadog Server

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

No annotations are provided, so the description carries full burden. It states 'Get a role' which implies a read-only operation, but doesn't disclose behavioral traits like authentication requirements, rate limits, error conditions, or what happens if the role_id doesn't exist. For a read operation with zero annotation coverage, this leaves significant gaps in understanding how the tool behaves.

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. It's front-loaded with the core action and includes necessary detail about the role_id. There's no wasted verbiage 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?

Given the tool has 0 parameters and no output schema, the description is minimally adequate. It explains what the tool does but lacks context about the return format, error handling, or how the role_id is provided. For a simple read operation, it meets basic needs but doesn't provide complete guidance for reliable agent invocation.

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 input schema has 0 parameters with 100% description coverage, so the schema already fully documents the lack of parameters. The description adds value by specifying that retrieval is 'by the role's role_id', implying the role_id might be part of the context or URL path rather than a parameter. This provides useful semantic context beyond the empty schema.

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 verb ('Get') and resource ('a role in the organization'), making the purpose understandable. It specifies retrieval by 'role_id', which distinguishes it from list operations. However, it doesn't explicitly differentiate from sibling tools like 'get_roles' or 'roles_get', which appear to be list operations.

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., needing a specific role_id), when-not-to-use scenarios, or refer to sibling tools like 'get_roles' (likely for listing roles) or 'roles_get' (another get operation). Usage is implied but not explicitly stated.

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