add_directory

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

No annotations are provided, so the description must carry the full burden. It discloses that files are sorted by name and that subdirectories are included, but it does not mention potential side effects, required permissions, or behavior on duplicate files.

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 extremely concise with two short paragraphs. The first sentence states the purpose, the second adds behavioral info, and the Args list is clean. Every word earns its place.

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?

The tool has only two parameters and no nested objects, and an output schema exists. The description covers the core purpose, sorting behavior, and parameter defaults. Some information about error handling or prerequisites is missing, but overall it is sufficiently complete for the tool's simplicity.

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?

With 0% schema coverage, the description adds meaningful context for both parameters: 'dir_path' is described as 'path to directory with books', and 'extensions' is clarified as 'comma-separated file extensions' with a default shown. This goes beyond the raw schema.

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 the verb 'upload' and the resource 'all books from a directory (and subdirectories)', which distinguishes it from siblings like 'add_document' (likely single file) and 'add_url' (URL-based).

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 that this tool is for batch uploading from a directory, but it does not explicitly state when to use it versus alternatives like 'add_document' or 'add_url', nor does it mention any prerequisites or exclusions.

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