make_directory

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

The annotations already indicate this is a mutating, non-idempotent operation, so the description does not need to restate that. However, the description adds no additional behavioral context, such as what happens if the directory already exists or whether parent directories are created automatically.

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 a single, direct sentence with no filler or redundant detail. The core action and target are front-loaded, making it easy to scan.

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 one-parameter tool with no output schema, this is close to adequate, but it omits edge-case behavior that an agent might need to call it correctly, such as failure when the path already exists and whether nested paths are created recursively. The annotations cover the mutation nature, but not these practical details.

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?

The input schema has no description for the `path` parameter (0% coverage), so the phrase 'new directory' provides minimal but useful context that `path` is the target directory to create. It does not explain path format, existing-path behavior, or whether parent directories must already exist.

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 clearly states a specific action ('create') and resource ('a new directory'), so an agent can understand the tool's purpose at a glance. It does not explicitly distinguish from siblings, and it largely restates the tool name, but it is unambiguous and not misleading.

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?

There is no explicit when-to-use guidance or mention of alternatives, but the intended use case is implied: use this tool when a new directory needs to be created. Because no sibling tool performs the same operation, the lack of explicit exclusions is not critical.

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