Conekta MCP Server

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

No annotations are provided, so the description carries full burden. It states the action but doesn't disclose behavioral traits like whether this sends an actual email (external side effect), requires specific permissions, has rate limits, or what happens on failure. The description is minimal and lacks operational context.

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 appropriately sized with a clear purpose statement followed by parameter explanations. The two-sentence structure is efficient, though the parameter section could be integrated more smoothly. No wasted words, but slightly fragmented.

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 2 parameters with 0% schema coverage and an output schema (which reduces need to describe returns), the description is moderately complete. It covers the basics but lacks details on behavior, error handling, and integration context. For a tool with external effects (sending email), more completeness is warranted.

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%, so the description must compensate. It lists both parameters with brief explanations ('The Conekta checkout ID', 'Recipient email address'), adding basic meaning beyond the schema's titles. However, it doesn't provide format details (e.g., email validation, checkout ID format) or constraints, leaving gaps.

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 clearly states the action ('Send a payment link via email') and identifies the resource (payment link associated with a checkout). It distinguishes from sibling 'send_checkout_sms' by specifying email delivery, but doesn't explain how it differs from other checkout-related tools like 'get_checkout' or 'create_checkout'.

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 on when to use this tool versus alternatives is provided. The description doesn't mention prerequisites (e.g., needing an existing checkout), appropriate contexts, or when other tools like 'send_checkout_sms' might be preferable. Usage is implied but not explicitly stated.

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