uploadAttachmentFromLocalFile

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only states 'upload... and get upload token' without explaining side effects (e.g., file creation on server), required permissions, or error conditions (e.g., file not found). The mention of local file system access is implicit but not elaborated.

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 concise sentence that is front-loaded with the key action and resource. It avoids unnecessary words, though it could be slightly more structured (e.g., separating action from outcome).

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?

Given the tool involves file system access and a Redmine API interaction, the description is too sparse. It does not explain the purpose of the upload token, the expected response format, or preconditions (e.g., file must exist, user must have write permissions). Despite having a nested parameter, the description fails to provide complete guidance for an AI agent.

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 input schema already includes descriptions for both filePath and filename, covering their meaning. The tool's description does not add new semantic information beyond the schema, so a baseline score 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 tool's action (upload), resource (attachment file), source (local file system), destination (Redmine), and outcome (get upload token). It effectively distinguishes it from the sibling tool uploadAttachmentFromBase64Content, which handles base64 content.

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 like uploadAttachmentFromBase64Content. It does not mention prerequisites such as file existence or authentication requirements, leaving the AI agent without clear usage context.

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