IT Tools MCP Server

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

Annotations indicate readOnlyHint=false, which aligns with the 'Generate' action implying a write/mutation operation. The description adds context about what types of content can be encoded (URLs, WiFi, contact info), which isn't covered by annotations. However, it doesn't disclose behavioral traits like rate limits, authentication needs, or output format details, leaving gaps in transparency.

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, efficient sentence that front-loads the core purpose and includes relevant examples. There's no wasted verbiage or redundancy, making it highly concise and well-structured for quick understanding.

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 tool's moderate complexity (2 parameters, no output schema), the description is adequate but incomplete. It covers the purpose and input examples but lacks details on output format, error handling, or usage constraints. With annotations providing some safety context, it's minimally viable but could be more comprehensive.

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%, so the schema already documents both parameters ('text' and 'size') with descriptions. The description adds minimal value by listing examples of text content (URLs, WiFi, contact info), but doesn't provide additional syntax or format details beyond what's in the schema. This meets the baseline 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 clearly states the tool's purpose: 'Generate QR code for any text including URLs, WiFi networks, contact info, etc.' It specifies the verb ('Generate') and resource ('QR code'), and provides examples of what can be encoded. However, it doesn't explicitly differentiate from sibling tools, which are mostly conversion/analysis utilities, so this isn't a distinguishing feature.

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 offers no guidance on when to use this tool versus alternatives. It lists examples of what can be encoded (URLs, WiFi, contact info) but doesn't mention any prerequisites, constraints, or when other tools might be more appropriate. There's no explicit 'when' or 'when-not' context provided.

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