uuid

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states that UUIDs are generated, but does not mention whether they are random (e.g., v4), the format of the output (string vs array), or any side-effect-free guarantee. This leaves important behavioral traits undisclosed.

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, front-loaded sentence with zero filler. It conveys the essential action and count range immediately, and is appropriately sized for the trivial complexity of the tool.

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?

Although the tool is simple, there is no output schema and the description lacks key details such as the return format (e.g., plain string vs JSON array) and whether the UUIDs are version 4 random. The one parameter is well-documented, but for an agent to correctly consume the result, these missing behavioral and output details are important. The description does not fully compensate for the absent output schema.

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 already fully documents the 'count' parameter with a description ('Number of UUIDs to generate. Defaults to 1.'), so schema coverage is 100%. The tool description adds little beyond the schema, merely restating that one or more UUIDs can be generated, which meets the baseline for this dimension.

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 one or more UUIDs' uses a specific verb ('Generate') and a clear resource ('UUIDs'), and implies a count range. It is immediately distinguishable from all sibling tools (echo, timestamp, math, hash, base64) that serve different purposes.

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?

No explicit when-to-use or alternatives are stated, but the purpose is self-evident and the usage context is implied: use whenever a UUID is needed. For a simple utility with no overlapping siblings, this implicit guidance is acceptable, though not as strong as naming alternatives.

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