Enroll a host with an API key

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

Annotations already indicate readOnlyHint=false and destructiveHint=false, so the description adds value by explaining the ownership rule and the sign-in requirement. This is consistent with the write operation implied by 'Creates a host'.

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?

Two concise sentences that front-load the main action and immediately state the key prerequisite. No fluff or repetition.

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 the tool having 11 parameters and no output schema, the description only covers the core action and one prerequisite. It omits explanations of optional fields, success/failure behavior, and idempotency implications, leaving the agent under-informed for complex calls.

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 description coverage is 0%, and the description does not mention any of the 11 parameters (ip, name, port, tags, authType, etc.). The agent is left entirely to infer parameter meanings from names alone, which is inadequate.

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 states a specific verb ('Enroll') and resource ('a host with an API key'), and further clarifies the ownership semantics ('host owned by the user assigned to the API key'). This is distinct from siblings like create_ssh_host, which likely uses different authentication.

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?

It provides a prerequisite (active sign-in and unlocked encrypted data) but no explicit guidance on when to use this vs alternatives. There is no mention of exclusions or when another tool would be preferred.

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