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. It states the tool validates a monitor and adds a note about log monitors requiring an unscoped App Key, which offers some context on authentication needs. However, it lacks details on what validation entails (e.g., read-only vs. side effects), error handling, or rate limits, making it partially transparent but incomplete for a validation operation.

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 concise with two sentences: a main statement and a note. It is front-loaded with the core purpose, and the note adds relevant context without redundancy. However, the first sentence is overly simplistic and could be more informative, slightly reducing efficiency.

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 validation tool with no annotations, no output schema, and 0 parameters, the description is inadequate. It fails to explain what validation means, what the output might be (e.g., success/failure, error details), or how it differs from sibling tools like 'validate_monitor_v1_2'. The note adds some context but does not compensate for the overall lack of completeness.

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% coverage, meaning no parameters are documented in the schema. The description does not mention any parameters, which is appropriate since none exist. It adds no semantic value beyond the schema, but with zero parameters, the baseline is 4 as the description does not need to compensate for missing parameter details.

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 'Validate the monitor provided in the request' is a tautology that restates the tool name 'validate_monitor_v1', offering no additional specificity. It does not clarify what validation entails (e.g., syntax, configuration, permissions) or distinguish it from sibling tools like 'validate_monitor_v1_2', making it vague and minimally informative.

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 explicit guidance on when to use this tool versus alternatives, such as 'validate_monitor_v1_2' or other validation-related tools. The note about log monitors requiring an unscoped App Key hints at a specific context but does not define general usage scenarios, prerequisites, or exclusions, leaving the agent with insufficient direction.

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