create_warehouse

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

There are no annotations, so the description carries the full behavioral burden. It discloses the return value (confirmation or error string), which is helpful, but it does not mention side effects, idempotency, duplicate handling, permissions, or what happens when optional fields are omitted.

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 compact and front-loaded with the core purpose. The Args/Returns structure is scannable, though the Args list partially duplicates the schema and includes an extra 'ctx' entry.

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 create operation with no annotations and no output schema, the description should clarify more behavior. It fails to mention folder_id, does not explain the default workspace behavior when workspace is omitted, and introduces a 'ctx' argument not present in the schema. The return description is useful but not enough to make the tool fully self-contained.

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%, so the description must compensate. It adds meaning for name, workspace, and description by explaining their roles and optionality. However, it omits folder_id entirely and lists a 'ctx' parameter that does not appear in the input schema, creating potential confusion.

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 clear verb ('Create'), a specific resource ('a new warehouse'), and a context ('in a Fabric workspace'). It is immediately distinguishable from sibling tools like create_lakehouse and create_workspace because the resource is explicit.

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 about when to use this tool versus alternatives, nor prerequisites such as setting a workspace first. The description only notes that workspace is optional, but does not explain the implications of omitting it or how this relates to sibling tools like set_workspace or create_lakehouse.

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