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. 'List rules' gives no information about whether this is a read-only operation, whether it requires authentication, what permissions are needed, whether there are rate limits, pagination behavior, or what the output format looks like. For a tool with zero annotation coverage, this is completely inadequate behavioral transparency.

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?

While 'List rules' is extremely concise (two words), this represents under-specification rather than effective conciseness. The description fails to provide necessary context and is too brief to be helpful. Every word should earn its place, but here the description lacks the essential information that would make it useful to an AI agent.

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 implied by the tool name (security monitoring rules likely involve security policies, configurations, or alerts), the description is completely inadequate. With no annotations, no output schema, and a minimal description, the agent has no information about what the tool returns, how to interpret results, or what behavioral characteristics to expect. This 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 input schema has 0 parameters with 100% description coverage (empty schema). The description doesn't need to explain any parameters since there are none. While it could mention that no parameters are required, the absence of parameters is adequately handled by the schema. A baseline of 4 is appropriate for zero-parameter tools where the schema fully documents the empty input structure.

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 'List rules' is a tautology that essentially restates the tool name 'get_security_monitoring_rules'. It provides the verb 'List' and resource 'rules' but lacks specificity about what kind of rules (security monitoring rules) and offers no differentiation from sibling tools. While it states a basic action, it doesn't clarify scope, format, or context beyond the obvious.

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 absolutely no guidance on when to use this tool versus alternatives. There are numerous sibling tools (like get_security_monitoring_rule, search_security_monitoring_signals, etc.) that might retrieve similar or related data, but the description offers no comparison, prerequisites, or context for selection. This leaves the agent with no usage direction.

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