IT Tools MCP Server

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

Annotations provide readOnlyHint=false, indicating a non-read operation, but the description adds valuable context by specifying the output format (e.g., '01ARZ3NDEKTSV4RRFFQ69G5FAV') and the time-sortable nature of ULIDs. It does not contradict annotations and enhances understanding beyond the structured data.

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 front-loaded with the core purpose, followed by a concise example that reinforces understanding. Every sentence earns its place without redundancy, making it efficient and well-structured for quick comprehension.

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 simplicity (0 parameters, no output schema), the description is largely complete, covering purpose, output format, and key traits. However, it could slightly enhance completeness by mentioning typical use cases or limitations, though this is minor for such a straightforward tool.

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?

With 0 parameters and 100% schema description coverage, the baseline is 4. The description compensates by explaining the output characteristics (e.g., example format and time-sortable property), adding meaningful semantics beyond the empty input 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?

The description clearly states the specific action ('Generate') and resource ('Universally Unique Lexicographically Sortable Identifier (ULID)'), with an example that reinforces the purpose. It distinguishes itself from sibling tools like 'generate_uuid' by specifying the ULID format and its time-sortable property.

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 implies usage context through the example ('creates time-sortable unique IDs'), suggesting it's for generating identifiers with sorting capabilities. However, it does not explicitly state when to use this tool versus alternatives like 'generate_uuid' or provide exclusions, leaving some guidance implicit.

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