spraay_free_uuid

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

Annotations already provide readOnlyHint and openWorldHint. The description adds that it is 'Free to call' and has a limit of 100 UUIDs, which are useful behavioral details beyond what annotations convey. No contradiction.

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 extremely concise with three short sentences, each adding important information (purpose, free/read-only, usage). No unnecessary words.

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 UUID generator with one optional parameter, the description covers all essential aspects: what it does, its limitations (up to 100), that it's free and read-only, and how to pass parameters. No gaps given the tool's low complexity.

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 already describes the 'params' parameter fully (coverage 100%). The description merely restates 'Pass any query parameters as a JSON string via the params argument.' This adds no additional meaning beyond what the schema already provides, so baseline 3 is appropriate.

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 'UUID v4 generator (up to 100)' and 'Free to call. Read-only.' This directly tells the agent what the tool does, and distinguishes it from many other 'free_' siblings by specifying UUID generation.

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 says 'Free to call. Read-only.' and explains how to use the params argument. While it does not explicitly mention when not to use it or alternatives, the tool's simplicity makes the usage obvious.

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