MCP Datadog Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. While 'Returns the list' implies a read-only operation, it doesn't specify whether this requires authentication, what format the list returns (e.g., paginated, filtered), or any rate limits. For a tool with zero annotation coverage, this leaves significant behavioral gaps unaddressed.

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 what the tool does without any wasted words. It's perfectly front-loaded with the core functionality ('Returns the list'), making it immediately scannable and understandable. Every word earns its place in this minimal but complete statement.

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 zero-parameter read operation with no output schema, the description is adequate but minimal. It states what the tool returns but doesn't provide context about the notification rules' format, scope, or relationship to security signals. Given the complexity implied by 'security signals notification rules' and the lack of output schema, more detail about what constitutes a notification rule would be helpful for the agent.

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 fully documents that no inputs are required. The description appropriately doesn't add parameter information, which would be redundant. Since there are no parameters to explain, the description correctly focuses on the tool's purpose rather than parameter semantics.

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 with a specific verb ('Returns') and resource ('list of notification rules for security signals'), making it immediately understandable. However, it doesn't distinguish itself from potential sibling tools like 'get_security_signals_notification_rule' (singular) or 'get_security_vulnerabilities_notification_rules', which would require explicit differentiation.

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. There's no mention of prerequisites, context for usage, or comparison to sibling tools like 'get_security_monitoring_signals' or 'get_security_vulnerabilities_notification_rules'. The agent receives no help in selecting this tool appropriately among many similar-sounding options.

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