MCP Datadog Server

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

With no annotations provided, the description carries full burden for behavioral disclosure but offers none. It doesn't indicate whether this is a read-only operation, what authentication is required, whether it has side effects, rate limits, or what the response format might be. The single sentence provides zero behavioral context beyond the implied retrieval action.

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 extremely concise at just three words, but this brevity comes at the cost of being under-specified rather than efficiently informative. While it's front-loaded with the core action, it lacks the additional context needed for proper tool understanding. The single sentence structure is simple but incomplete.

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 tool with zero parameters and no output schema, the description is completely inadequate. It doesn't explain what a 'powerpack' is, what information is returned, whether this retrieves a default/specific powerpack, or how it relates to other powerpack tools. Without annotations or output schema, the description fails to provide the minimal context needed for effective tool 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 zero parameters with 100% schema description coverage, so the schema fully documents the empty parameter set. The description doesn't need to compensate for any parameter documentation gaps. However, it also doesn't add any semantic context about implicit parameters or how identification occurs (e.g., via context or default behavior), which keeps it from a perfect score.

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 'Get a powerpack' is a tautology that essentially restates the tool name without adding meaningful context. While it indicates a retrieval action ('Get'), it doesn't specify what a 'powerpack' is in this domain or what specific information is retrieved. Compared to sibling tools like 'get_powerpacks' (plural), it fails to distinguish whether this retrieves a single specific powerpack versus a list.

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, required context, or how it differs from similar tools like 'get_powerpacks' (plural form) or 'update_powerpack'. Without any usage context, an agent cannot determine appropriate invocation scenarios.

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