API-Market MCP 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 but fails to do so. It does not mention whether this is a read-only or mutating operation, authentication requirements, rate limits, error handling, or expected output format. This leaves critical behavioral traits undisclosed.

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 a single sentence that is technically concise but under-specified, as it lacks necessary details. While front-loaded, it does not efficiently convey purpose or usage, making it more of an incomplete specification than true conciseness.

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 DNS checking tool, no annotations, no output schema, and 0% schema description coverage, the description is severely incomplete. It does not cover purpose, usage, parameters, behavior, or expected results, failing to provide adequate context for an AI agent to use the tool effectively.

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?

Schema description coverage is 0%, and the description provides no information about the single parameter 'domain'. It does not explain what the domain parameter represents (e.g., a valid domain name format), its constraints, or examples beyond the default 'google.com'. This fails to compensate for the lack of schema documentation.

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 'Make a POST request to magicapi/dnschecker/dnschecker' restates the tool name 'DNS_Checker_API' in action form but lacks specificity about what DNS checking entails (e.g., DNS record lookup, domain resolution). It does not distinguish from sibling tools like 'Check_domain_availability' or 'getWhoisInfo', leaving the exact purpose vague.

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?

No guidance is provided on when to use this tool versus alternatives such as 'Check_domain_availability' or 'getWhoisInfo'. The description offers no context, prerequisites, or exclusions, making it impossible to determine appropriate usage scenarios.

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