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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds real value beyond them: it does not send anything, does not handle personal data, and returns both the draft text and the destination form URL. That is meaningful disclosure for a generation tool.

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?

Two sentences, front-loaded with the action and resource, then the safety/return boundary. No filler or restatement of the title, though it is terse enough that a little more routing guidance could have been included without bloat.

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?

There is no output schema, and the description covers the return shape (draft text plus form URL), which is the key missing piece. With annotations carrying the safety profile and only two simple parameters, the definition is close to sufficient, missing only explicit alternative-routing guidance.

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 coverage is 50%: descripcion is documented, but tipo_de_agua (an enum of consumo/residual/reutilizacion/aridos) has no description in the schema. The phrase "a partir del caso, con los datos que conviene añadir" hints that extra data improves the draft but does not explain what tipo_de_agua controls, so the description only partially compensates for the gap.

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?

States a specific verb and resource ("Redacta el texto de una solicitud de estudio del agua para Aguas SB") and scopes it to a case plus supporting data, so the agent knows it produces draft text rather than sending anything. It does not name or contrast with any sibling (consultar_aguas_sb, estimar_depuracion, orientar_caso_agua), so differentiation must be inferred from the function name.

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?

Implied usage is clear from the domain — draft a study request from a described case — and the boundary "no envía nada... la persona revisa y envía" tells the agent this is a pre-send step. However there is no explicit when-to-use versus orientar_caso_agua or procedimiento, and no stated prerequisites for invoking it.

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