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. It states 'This endpoint takes no JSON arguments,' which clarifies the input format but doesn't address critical behavioral aspects: whether this is a mutation (likely, given 'unmutes'), what permissions are required, if it's idempotent, what happens if the host isn't muted, or the response format. For a mutation tool with zero annotation coverage, this leaves significant gaps.

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 extremely concise with two sentences: the first states the purpose, and the second clarifies the input format. Every word earns its place, and it's front-loaded with the core action. There's no redundancy or unnecessary elaboration, making it efficient for an agent to parse.

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 tool's complexity (a mutation with no annotations, no output schema, and 0 parameters), the description is incomplete. It lacks information on behavioral traits (e.g., side effects, error conditions), how the host is specified, and what the tool returns. While the parameter aspect is covered, the overall context for safe and correct invocation is insufficient.

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, so the schema fully documents the absence of parameters. The description adds value by explicitly stating 'This endpoint takes no JSON arguments,' reinforcing that no inputs are needed. This compensates adequately, though it doesn't explain how the host is identified (e.g., via URL path or context), which might be a minor gap.

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 'Unmutes a host' clearly states the verb ('unmutes') and resource ('a host'), making the purpose immediately understandable. It distinguishes from sibling tools like 'mute_host' by indicating the opposite action, though it doesn't explicitly mention other host-related tools in the list. The description is specific but could be more differentiated from other host management tools.

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. It doesn't mention prerequisites (e.g., the host must be muted first), conditions for unmuting, or related tools like 'mute_host' or 'mute_monitor'. The agent must infer usage from the tool name alone, which is insufficient for optimal selection.

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