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

Annotations already declare readOnlyHint=false, destructiveHint=true, idempotentHint=false, and openWorldHint=false, so the safety profile is covered; the '[write]' prefix merely restates it. The description adds the structural constraint that folder_name is a single path segment, but says nothing about behavior when the folder already exists, permission requirements, or whether the operation is reversible.

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, front-loaded with the action and resource, then the parameter constraints. No filler; every clause adds information an agent needs to construct the call.

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 4-parameter mutation with zero schema documentation, the description supplies the missing parameter meaning and the annotations supply the safety profile. The remaining gap is what the call returns (no output schema) and how id/UUID conflicts are resolved, both minor for a create operation.

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 carries the full burden and largely succeeds: it explains folder_name is one segment without slashes, path is the parent (empty = zone root), and that either storages_account_id or storages_account_uuid identifies the account. It stops short of stating precedence between the ID and UUID fields or which accounts are addressable.

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?

Specific verb+resource: 'Create a folder inside a storage account', with the ID/UUID selector named. It is clearly distinguishable from delete_storage_folder and list_storage_files, though it does not explicitly route the agent away from any sibling.

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 usage through 'path is the parent folder (empty = zone root)', which tells the agent how to create a root-level folder versus a nested one. It gives no explicit when-to-use/when-not guidance or mention of alternative tools for placing content in storage.

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