Create a load balancer

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

With no annotations, the description carries the full behavioral burden. It usefully discloses a cost side effect ('Billed') and the mandatory confirm flag, which is genuine non-schema context. However it omits that this is a mutating/state-creating operation, any permission requirements, and what happens on failure.

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?

Three terse fragments, front-loaded with the action and then the critical billing/confirm constraints. Efficient, though the extreme brevity shades into under-specification rather than pure conciseness.

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?

A 9-parameter create tool with nested objects, no annotations, and no output schema needs substantially more than this. The description leaves the agent without guidance on most parameters or on the operation's side effects and failure modes.

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 67%, and the description only echoes the confirm parameter that the schema already documents ('Must be true. A load balancer costs money'). The nested targets, services, and algorithm objects plus public_interface are undocumented in both places, and the description does nothing to compensate.

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?

States a specific verb and resource ('Create a load balancer'), which plainly separates it from the delete/list siblings. It stops short of naming or contrasting an alternative create path, but the core purpose is 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?

The description supplies one real precondition ('Requires confirm true') which tells the agent how to invoke it successfully. It says nothing about when to prefer this tool, prerequisites like networking/location setup, or what alternatives exist.

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