putBase64

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. While '上传' (upload) implies a write/mutation operation, the description doesn't disclose important behavioral aspects like authentication requirements, error conditions, rate limits, whether the operation overwrites existing files, or what happens on success/failure. For a mutation tool with zero annotation coverage, this is a significant 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 a single, efficient Chinese sentence that directly states the tool's purpose without any unnecessary words or structural complexity. It's appropriately sized and front-loaded with the core functionality.

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 mutation tool with no annotations and no output schema, the description is inadequate. It doesn't explain what happens after upload (success response, error handling), doesn't mention authentication or permission requirements, and provides no context about the storage system. Given the tool's complexity as a write operation, more behavioral context is needed.

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 100%, so the schema already documents all four parameters thoroughly. The description doesn't add any meaningful parameter semantics beyond what's already in the schema - it doesn't explain parameter interactions, provide examples, or clarify edge cases. With complete schema coverage, the baseline of 3 is appropriate.

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 action ('上传' meaning 'upload') and resource ('base64编码内容到存储桶' meaning 'base64 encoded content to storage bucket'), providing a specific verb+resource combination. However, it doesn't distinguish this tool from its sibling tools like putBuffer, putObject, putObjectSourceUrl, and putString, which all appear to be alternative upload methods.

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 provides no guidance on when to use this tool versus alternatives. With multiple sibling tools for uploading (putBuffer, putObject, putObjectSourceUrl, putString), there's no indication of when this base64-specific upload method is preferred or what distinguishes it from other upload methods.

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