create_agent

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only reveals that passing the tools array assigns tool IDs, but omits response behavior, error cases, permissions, or any side effects beyond creation.

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 only two sentences and contains no waste, front-loading the primary action and adding a single helpful hint about tools. It could be more structured with parameter sections, but it's efficiently concise.

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?

Given 5 parameters, no output schema, and no annotations, this description is insufficient. It doesn't specify what the response looks like, whether creation is synchronous, or if prerequisites exist, making it difficult for an agent to confidently invoke and verify 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?

With 0% schema description coverage, the description must explain parameters, but it only addresses the optional tools array. The other parameters (name, description, model_id, instructions) are left entirely to their self-explanatory names, and the description adds no extra meaning for them.

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 verb 'Create' plus resource 'agent' clearly defines the operation, distinguishing it from siblings like update_agent, delete_agent, and invoke_agent. However, it doesn't provide any context about what an agent is or any unique validation rules, so it's clear but not exceptionally informative.

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 gives no guidance on when to use this tool versus alternatives such as update_agent or assign_tool_to_agent. It simply states the action without preconditions, exclusions, or mention of related workflows.

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