IT Tools MCP Server

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

Annotations provide readOnlyHint=false, indicating this is a write operation, which aligns with 'generate' in the description. The description adds no behavioral details beyond this (e.g., randomness source, security implications, or output format). With annotations covering the write aspect, it meets baseline but lacks enriched 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 a single, direct sentence with no wasted words, making it highly concise and front-loaded. It efficiently conveys the core purpose without unnecessary elaboration.

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?

For a tool with one well-documented parameter and annotations indicating a write operation, the description is minimally adequate. However, without an output schema or details on the generated phrase's format or security, it leaves gaps in understanding the full behavior, keeping it at a baseline level.

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 100% description coverage, with 'wordCount' fully documented via enum and description. The description doesn't add any parameter details beyond what the schema provides, so it meets the baseline of 3 for high schema coverage.

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 'Generate BIP39 mnemonic phrases' clearly states the action (generate) and the resource (BIP39 mnemonic phrases), making the purpose immediately understandable. It doesn't explicitly differentiate from siblings like 'generate_password' or 'generate_token', but the specificity of 'BIP39' provides enough distinction for most contexts.

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 like 'generate_password' or 'generate_token', nor does it mention any prerequisites or contextual constraints. It's a standalone statement with no usage context.

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