EduBase MCP Server

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

Annotations indicate readOnlyHint=false (write operation), but description adds crucial behavioral context about link caching/reuse that annotations don't capture. This explains the conditional idempotency (returns existing vs generates new). Deducted one point for not defining 'valid' link criteria or clarifying backend side effects (e.g., database record creation).

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?

Two sentences total with zero waste. First sentence establishes purpose immediately; second sentence provides essential caching behavior. No redundant filler or repetition of structured data (schema/annotations).

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 presence of an output schema (per context signals) and simple 2-parameter input, the description adequately covers the core operation and key edge case (link reuse). Minor gap: does not clarify error scenarios (e.g., missing certificate) or link expiration behavior, though output schema likely handles return structure.

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 100% ('exam identification string', 'user identification string'), so baseline 3 is appropriate. Description mentions 'user exam certificate' mapping to both parameters contextually, but adds no additional semantic details about ID formats, validation rules, or constraints beyond the schema.

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?

Description uses specific verb 'Generate' with clear resource 'download link for the latest user exam certificate'. The action clearly distinguishes from sibling tool 'edubase_get_exam_certificates_user' by specifying 'download link' vs implied metadata retrieval.

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 second sentence provides implicit usage guidance about caching behavior ('If a previous valid link exists, it will be returned instead'), suggesting safe retry semantics. However, it lacks explicit when-to-use guidance versus sibling alternatives like 'edubase_get_exam_certificates_user' or prerequisites for the exam/user parameters.

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