read_file

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

No annotations are provided, so the description must carry the behavioral burden. It adds useful context about the path being relative to the workspace, but does not disclose error handling, file encoding, or side effects. Since this is a read-only operation, the absence of mutation details is acceptable, but the lack of error/edge-case info leaves a gap.

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 a single-purpose sentence and a brief parameter explanation. It is front-loaded with the action and contains no unnecessary words or repetition.

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 tool with one parameter and an output schema, the description covers the essential context: what is read, from where, and how to specify the path. It lacks details on failure modes, but the presence of an output schema reduces the burden of explaining return behavior. 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?

Schema coverage is 0%, but the description fully compensates by explaining the 'path' parameter with a clear definition (relative to workspace) and examples. This adds significant meaning beyond the schema's bare 'Path' property, making the parameter semantics very clear.

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 ('读取' meaning read) and resource ('workspace 内某个文本文件' meaning text file in the workspace), clearly distinguishing it from siblings like write_file and list_directory. It states the function is to read content and return it, which is unambiguous.

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 by stating it reads files from the workspace, but it does not explicitly mention when to use this tool versus alternatives. No exclusions or alternative tool names are provided, though the sibling names (write_file, list_directory) make the context somewhat clear.

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