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

With no annotations provided, the description carries the full burden of disclosure. It clearly states that the tool sends a real email ('enviándola de verdad') to one account member, defaulting to the owner, which is the key side effect. It could mention additional behavioral details (e.g., whether the flow state changes), but the disclosed info is sufficient for a test action.

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 only two sentences, front-loaded with the action and resource. Every clause adds value: the mandatory timing, the default recipient, and the restriction. No wasted words.

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?

Despite lacking annotations and an output schema, the description covers the core action, the required context (before arming), the recipient constraint, and the default behavior. These details are sufficient for an agent to select and invoke the tool correctly without additional documentation.

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 schema only documents to_email; flow_id lacks a description. The description adds critical semantics for to_email: it must be from an account member and defaults to the owner. flow_id is left implicit, but the tool name and context make its purpose clear. The added value is meaningful despite the partial coverage.

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 the specific verb 'Prueba' (test) with a clear resource ('una automatización') and states the key scope: sending to one account member. This differentiates it from sibling tools like arm_flow, activate_flow, and trigger_flow, which operate on flows in different ways.

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 states 'Es OBLIGATORIO antes de armar' (mandatory before arming), giving a clear when-to-use directive. It also provides an exclusion: 'No se puede usar para mandar correo a terceros', which tells the agent when not to use it.

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