fetch_and_upload

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

With no annotations, the description carries full burden. It discloses that the server handles transfer (no binary in context) and that using attachment_id replaces in-place without architecture update. Some behavioral aspects are covered, but it omits safety details like error handling or destructive potential.

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 moderately concise with a tip and three operational sentences. However, it could be tightened by removing the emoji and better front-loading the core action.

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 complexity (7 params, no annotations, no output schema), the description is incomplete. It fails to document most parameters and does not fully describe return values beyond {id, src}, leaving significant gaps 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?

Schema description coverage is 0%. The description explains only source and attachment_id, leaving 5 other parameters (name, public, res_id, is_image, res_model) undocumented. This is insufficient for a 7-parameter tool.

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 loads a file from a URL or local path and stores it as an ir.attachment. It also provides a hint to check sibling tools for canonical recipes, distinguishing its purpose.

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 offers a usage tip to check find_skill/list_workflows before multi-step work and explains when to use attachment_id vs omit. However, it lacks explicit guidance on when not to use this tool versus siblings like upload_binary.

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