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Mailgun MCP Server

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by mailgun

get--v3-domains-domain-limits-tag

Retrieve tag-specific sending limits for a Mailgun domain to manage email volume and comply with rate restrictions.

Instructions

Get tag limits

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
domainYes
Behavior1/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Get tag limits' implies a read-only operation, but it doesn't specify what 'limits' refers to (e.g., usage quotas, rate limits, configuration limits), whether authentication is required, potential side effects, error conditions, or response format. The description provides no behavioral context beyond the basic action.

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?

The description is extremely concise at just three words ('Get tag limits'), with no wasted words or unnecessary elaboration. It's front-loaded with the core action, though this brevity comes at the cost of clarity and completeness. Every word serves a purpose, even if that purpose is minimal.

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

Completeness1/5

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 (involving domains, limits, and tags), the lack of annotations, 0% schema description coverage, and no output schema, the description is completely inadequate. It doesn't explain what 'tag limits' are, how they're retrieved, what the 'domain' parameter means, or what the tool returns. For a tool with one required parameter and no structured documentation, this description provides almost no useful context.

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

Parameters2/5

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

The input schema has 1 parameter ('domain') with 0% description coverage, meaning the schema provides no documentation for this parameter. The description 'Get tag limits' doesn't mention the 'domain' parameter at all, nor does it explain what 'tag limits' are or how they relate to the domain. With low schema coverage, the description fails to compensate by adding meaningful parameter context.

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

Purpose2/5

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

The description 'Get tag limits' is a tautology that essentially restates the tool name 'get--v3-domains-domain-limits-tag'. It provides a verb ('Get') and resource ('tag limits'), but lacks specificity about what 'tag limits' actually means in this context. It doesn't distinguish this tool from sibling tools like 'get--v3-domain-tag' or 'get--v3-domain-tag-stats', which also involve tags.

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

Usage Guidelines1/5

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. With many sibling tools involving domains, tags, and statistics (e.g., 'get--v3-domain-tag', 'get--v3-domain-tag-stats', 'get--v3-domain-tag-stats-aggregates'), there's no indication of what makes this tool unique or when it's appropriate. No prerequisites, exclusions, or contextual cues are mentioned.

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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