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

Annotations already establish readOnly, idempotent, non-destructive and closed-world behavior, so the safety profile is covered. The description adds one genuinely useful behavioral fact beyond them — the series starts in December 2015 and figures are INDEC-published — but says nothing about defaults, latency, or result shape. With annotations carrying the main burden, a 3 fits.

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?

A single compact sentence with the source system and temporal coverage front-loaded, then the breakdown dimensions. No redundant or filler wording, though the heavy use of acronyms makes it slightly dense for an unfamiliar reader.

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?

The tool has an output schema and full schema descriptions, and the description adds the two facts those structures cannot convey: the source (INDEC) and the historical start date. Nothing critical to a correct call is missing, though a pointer to the overlapping sibling tools would complete it.

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 100%, so every parameter (including start/end format, index variants, category codes and measure names) is already documented in the schema. The description's mention of 'nivel general, origen (nacional/importado), sector o rubro' only restates the category parameter. Baseline 3 applies.

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?

Names the specific resource (Sistema de Índices de Precios Mayoristas) and enumerates the three variants (IPIM, IPIB, IPP) plus the breakdown dimensions. An agent can tell this is wholesale price data as opposed to inflation_series or construction_costs, though it never names those siblings explicitly.

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?

Usage is only implied by the subject matter and the 'desde dic-2015' coverage note; there is no statement of when to prefer this over inflation_series, latest_indicators or construction_costs, and no exclusions. An agent must infer the routing decision from the topic alone.

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