read_file

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

With no annotations provided, the description carries the burden of behavioral disclosure. It clearly indicates a read-only operation ('Read') and what it operates on, but it does not mention edge cases, exact-name matching, side effects, or any limitations.

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 sentence with no filler, starts with the core action, and immediately conveys the essential information. It is as concise as possible while still being meaningful.

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 tool with one required parameter and an output schema, the description is minimally sufficient but still lacks usage context and behavioral caveats. An agent can invoke it, but it would benefit from a note on sourcing the file name or on behavior when the file does not exist.

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 for the parameter. It only says 'by name,' which maps to the single 'name' parameter, but it does not clarify the expected format, whether the full filename is required, case sensitivity, or how the name relates to other tools like list_files.

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 a specific verb ('Read') and resource ('uploaded file's contents'), which makes the tool's purpose clear. It distinguishes from siblings like list_files and file_manager by focusing on reading contents rather than listing or manipulating files, though it does not explicitly name the alternatives.

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 tool is for retrieving file contents by name, which is enough for a simple read operation. However, it provides no explicit when-to-use guidance, exclusions, or comparison against alternative file-related tools.

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