list_ad_domains

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

With no annotations, the description carries the full behavioral burden. It transparently discloses a read-only enumeration operation and the kinds of details returned. The main gaps are no explicit mention of pagination or error behavior, but for a zero-parameter list tool with an output schema, these are low-impact omissions.

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 sentences — a clear purpose statement followed by a brief return detail hint. No filler, no redundancy, and the key action ('List all ...') is front-loaded.

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 zero-parameter, read-only list with an output schema, the description covers the essential call semantics. It could be slightly more complete by explicitly contrasting with domain-adjacent siblings, but the complexity is low and no call-critical information is missing.

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?

There are zero parameters, so there is no semantic baggage to document. The schema description coverage is 100%; nothing further is needed, and the description does not attempt to add unnecessary parameter context. The baseline of 4 is appropriate.

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 uses the specific verb 'list' with a clear resource: 'Active Directory domains configured in the Horizon environment.' It also names the returned categories (trust relationships, status, bind accounts), and this scope distinguishes it from siblings like list_ad_containers or get_domain_netbios_map.

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 implies the natural use case — enumerating configured AD domains — but it does not explicitly state when to prefer this over sibling tools such as list_ic_domain_accounts or get_domain_netbios_map. There are no exclusions or alternative routing cues.

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