generate_uuid

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

No annotations are provided, so the description carries the full burden. It does disclose meaningful behavior: version semantics, the 100-UUID limit, and the exact return keys (uuid, uuids, version, count, cost_usd). However, it does not describe side effects, billing implications of cost_usd, or whether this is a safe read-only operation, leaving some behavioral ambiguity.

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, then gives a compact 'Args' and 'Returns' block. Every sentence earns its place: the version explainer and the limit note are both necessary, and there is no filler or repetition.

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 simple tool with only two optional parameters, the description is complete. It provides parameter ranges, defaults, return structure, and the key limit. The mention of cost_usd is not explained in depth, but it does not block an agent from selecting and invoking the tool correctly. No output schema exists, but the description compensates with the return dictionary layout.

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 0%, so the description must compensate, and it does fully. It explains that version is 1 or 4 with default 4, and count is 1–100 with default 1. It also gives the practical meaning of each version (MAC+timestamp vs random). This goes well beyond the bare integer types in the 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 states 'Generate one or more UUIDs' with a specific verb and resource, and clarifies the two supported versions (v1 and v4). This clearly distinguishes it from sibling tools like validate_uuid, generate_hash, or generate_password, so an agent can immediately tell what it does.

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 explains when to use this tool implicitly: if you need UUIDs, choose version 1 or 4 and a count. It also gives guidance on version selection by explaining that v1 uses MAC address + timestamp and v4 uses random. However, it does not explicitly mention when not to use it or point to alternatives such as validate_uuid for validation tasks, leaving the choice partially to inference.

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