box_read_file

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

Annotations already provide readOnlyHint=true and openWorldHint=true, and the description adds the workdir-relative scope. However, it does not disclose behavior such as error handling, encoding defaults, or what happens if the file/path is invalid. No contradiction with annotations.

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?

A single, front-loaded sentence with no wasted words. It states the action and the key scoping detail immediately.

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 simple read-only tool with good annotations, this is mostly complete. The main gap is that no output schema exists and the description does not state what is returned, but the core behavior is clear.

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 description adds meaning by clarifying that the 'path' is relative to the box workdir. However, schema coverage is only 33%, and the description does not explain the 'encoding' parameter or the default behavior, so it only partially compensates.

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 ('a file'), and adds the scope 'relative to the box workdir.' This clearly distinguishes it from sibling tools like box_write_file and box_list.

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 (reading file contents within a box workdir) but does not explicitly state when to use it over alternatives, nor does it mention exclusions or prerequisites. Sibling differentiation is only implicit through naming.

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