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MCP Datadog Server

MCP Datadog Server

by micaelmalta
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

list_metrics

Discover available Datadog metrics with optional search filtering. Identifies metrics in your environment to inform monitoring queries.

Instructions

List available Datadog metrics, optionally filtered by a search query. Useful for discovering what metrics are available in your environment.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_metrics"
  }
}

Input Schema

NameRequiredDescriptionDefault
limitNoMaximum number of metrics to return (default: 100, max: 1000)
queryNoSearch query to filter metrics (e.g., 'system', 'app.request'). Partial matches are supported.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It discloses the optional filtering behavior but does not mention authentication requirements, response format, pagination, or other behavioral traits. For a listing tool, this is adequate but not thorough.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, front-loaded with the primary action, and zero filler. Every word earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool is simple, has no required parameters, and the schema covers everything. The description provides purpose and usage context. It lacks a note about return format, but with no output schema and a low-complexity tool, this is acceptable.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% – both 'limit' and 'query' are fully described. The description adds no information beyond the schema, so the baseline of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with 'List available Datadog metrics', which is a specific verb+resource, and clarifies the optional search filter. This clearly distinguishes it from sibling tools like query_metrics and get_metric_metadata, which have different purposes.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'Useful for discovering what metrics are available in your environment' provides clear context for when to use this tool. However, it does not explicitly name alternatives or give exclusion criteria, so it falls short of a 5.

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

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