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

The description discloses concrete behavioral details beyond the basic read/write hints from annotations: it reveals rate limits (3 requests), expiry (30 minutes), shared budget spending, and the fact that the key is real and temporary. This gives the agent a full picture of side effects and constraints.

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 three dense sentences, each adding essential information: what the tool does and its limits, when to use it, and how to handle the output. There is no filler or redundancy, making it a model of concise front-loaded writing.

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?

Despite having no output schema, the description fully covers the tool's purpose, constraints, usage context, and follow-up actions. It is complete enough for an agent to decide when to invoke it and how to process the result.

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 has no parameters, so the baseline is 4. The description adds supplementary value by explaining how the returned value should be used (passed as the api_key argument), which is more than just restating schema content.

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 action ('Mint a real, temporary oruk API key') and specifies key attributes (3 requests, 30-minute expiry, capped shared budget). It distinguishes itself from sibling tools that perform transcription/analysis rather than key creation.

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?

Explicitly states when to use: 'when no Authorization header is configured and the user wants to try transcription or tone analysis right now.' It also explains how to use the returned key and the recommended follow-up of sharing the signup link, marking a clear use-case context.

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