MCP Datadog Server

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

No annotations are provided, so the description must fully disclose behavioral traits. 'Create a detection rule' implies a write operation but offers no details on permissions required, side effects, rate limits, or what constitutes a successful creation. It fails to describe the mutation's impact or any behavioral constraints, making it inadequate for a tool with no annotation coverage.

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 with no wasted words. It's front-loaded and directly states the tool's action, making it highly concise and well-structured for its minimal content.

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 complexity of a creation tool with no annotations, no output schema, and 0 parameters, the description is incomplete. It lacks necessary context such as what a detection rule is, expected inputs (though none are required), behavioral details, or output expectations. This leaves significant gaps for an agent to understand and use the tool effectively.

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, meaning no parameters are documented because none exist. The description doesn't add parameter information, which is acceptable since there are no parameters to explain. A baseline of 4 is appropriate as the schema fully covers the absence of parameters.

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 'Create a detection rule' restates the tool name 'create_security_monitoring_rules' with minimal elaboration, making it tautological. It specifies the verb 'create' and resource 'detection rule' but lacks detail about what a detection rule entails or its scope within security monitoring. While it distinguishes from non-creation siblings, it doesn't differentiate from similar creation tools like 'create_security_monitoring_cloud_workload_security_agent_rules'.

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, context, or exclusions, and with many sibling tools (e.g., other security monitoring creation tools), there's no indication of when this specific tool is appropriate. This leaves the agent without usage direction.

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