zernio_create_api_key

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

The description notes a critical behavioral trait: 'The key is only shown once at creation.' However, with no annotations, it does not disclose potential side effects, permissions required, or limits on key creation, leaving gaps in full behavioral understanding.

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—two sentences with no filler. Every word adds value, focusing on purpose and a key behavioral note.

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 one parameter and no output schema, the description covers purpose and the critical 'key shown once' behavior. It could mention that the key is returned in the response, but overall it is sufficiently complete.

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 coverage is 100%, and the description adds no additional meaning beyond the schema's description of the 'name' parameter. The baseline of 3 is appropriate as the schema already provides adequate parameter documentation.

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 ('Create a new API key') and the resource ('Zernio account'). It distinguishes from sibling tools like zernio_list_api_keys and zernio_delete_api_key, making the tool's purpose specific and unambiguous.

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 (e.g., listing or deleting API keys). There are no prerequisites, limitations, or context for deciding to create a key.

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