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. 'Test a rule' doesn't indicate whether this is a read-only validation, a destructive test, requires specific permissions, has side effects, or what the expected output might be. For a tool with zero annotation coverage, this is completely inadequate.

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 technically concise with just three words, this is under-specification rather than effective conciseness. The description fails to provide necessary information about what 'testing' entails or what 'rule' refers to. Every word should earn its place, but here the words don't convey enough meaningful 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?

The description is completely inadequate for a tool with no annotations and no output schema. 'Test a rule' doesn't explain what testing means in this context, what the expected behavior is, what security monitoring rules are being tested, or what the agent should expect as a result. For a tool that presumably performs some validation or testing operation, this leaves critical gaps.

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 (schema coverage 100%), so there's no parameter documentation burden. The description doesn't need to explain parameters, and the baseline for zero parameters is 4. The description doesn't add parameter information, but that's acceptable given the empty parameter set.

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 'Test a rule' is a tautology that essentially restates the tool name 'create_security_monitoring_rules_tests'. It doesn't specify what kind of testing occurs, what resources are involved, or what 'rule' refers to. While it includes a verb ('Test'), it lacks specificity about the resource being tested or the testing mechanism.

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. It doesn't mention prerequisites, appropriate contexts, or differentiate from sibling tools like 'create_security_monitoring_rules' or 'create_security_monitoring_rule_test'. The agent receives no usage direction beyond the vague action of testing.

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