generate_uuid

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

The description claims the tool can generate ULID identifiers, but the input schema only allows version values '4' and '7' with no option for ULID. This mismatch overstates the tool's capabilities. It also does not disclose default behavior (count=1, version='4') or the return format.

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 with no unnecessary words. However, it omits important behavioral details and includes a misleading ULID reference, which detracts from its value.

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 tool with two optional parameters and no output schema, the description is insufficient. It fails to specify the return format, clarify the ULID discrepancy, or provide usage context, making it inadequate for an agent to reliably invoke the 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?

The schema covers both parameters thoroughly with descriptions for count and version, so the description adds no parameter-specific value. The mention of ULID may confuse the version parameter, but the schema already provides sufficient semantics.

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 uses the specific verb 'Generate' and clearly identifies the resource as 'UUID (v4 or v7) or ULID identifiers', distinguishing it from sibling generation tools like generate_password or generate_qr. The inclusion of ULID is misleading given the schema, but it does not obscure the core purpose.

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 guidance is provided on when to use this tool versus alternatives. It does not mention use cases like creating unique identifiers for databases, nor does it contrast with generate_password or other generation tools.

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