IT Tools MCP Server

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

Annotations indicate readOnlyHint: false, but the description doesn't clarify if this implies state changes or side effects. It adds minimal behavioral context beyond annotations, such as the bidirectional conversion capability. No contradictions with annotations exist, but it lacks details on error handling, output format, or limitations.

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, clear sentence that efficiently conveys the tool's purpose without unnecessary words. It is front-loaded and wastes no space, making it easy to parse and understand quickly.

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 simple nature of the tool (one parameter, no output schema, and basic annotations), the description is adequate but minimal. It covers the core functionality but lacks details on output format, error cases, or examples, which could help in more complex scenarios. It meets the minimum viable threshold for this context.

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, clearly documenting the 'input' parameter as accepting Unix timestamps or ISO date strings. The description adds no additional parameter semantics beyond this, as it only restates the conversion purpose without elaborating on format specifics or examples.

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: converting between Unix timestamps and human-readable dates. It specifies the action ('convert') and the resource ('Unix timestamps' and 'human-readable dates'), making it easy to understand. However, it doesn't explicitly differentiate from sibling tools like 'convert_temperature' or 'convert_number_base', though the domain is distinct enough.

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. It doesn't mention any prerequisites, context-specific use cases, or comparisons to other conversion tools in the sibling list. Users must infer usage based on the purpose alone, which is insufficient for optimal tool selection.

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