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

The description adds useful behaviors beyond the annotations: the platform downloads and stores the file, there is a 200MB limit, the file is returned ready, record attachment is optional, and record_ids enables bulk execution. It does not contradict the annotations (readOnlyHint=false, destructiveHint=false), though it remains silent on specifics like account selection or output shape.

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 text is short, front-loaded, and well-scoped into a main explanation, optional behavior, and bulk support note. Every sentence adds useful information without unnecessary filler, and the formatting makes the tool's core behavior immediately visible.

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 has 7 parameters, no parameter descriptions in the schema, and no output schema, the description covers the main flow but not all important contextual details. It misses parameter semantics for account, filename, and content_type, and does not describe what shape the response takes or whether attachments require any pre-existing object context.

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?

While the schema has 0% description coverage, the description explains url, object+record_id attachment, and record_ids bulk support, which adds meaningful context. However, parameters like account, filename, and content_type are not explained at all, leaving gaps for an agent preparing calls to this 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 uses a specific verb and resource: 'Sobe um arquivo A PARTIR DE UMA URL' (uploads a file from a URL), and clarifies the platform downloads and stores it, up to 200MB. This clearly distinguishes it from sibling tools like crm_upload_file or crm_download_file by focusing on URL-based uploads without the agent holding the bytes.

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?

It explicitly describes when to use the tool: 'o jeito do AGENTE subir via API sem segurar os bytes' — the way for an agent to upload via API without handling raw file content. It also describes optional record attachment and bulk usage, but does not explicitly name alternatives like crm_upload_file, so it lacks exclusionary guidance.

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