direct.hf.report_adgroups

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

Annotations declare readOnlyHint=true and idempotentHint=true, so the safety profile is covered, but the description adds essentially nothing beyond 'preset'. It does not disclose what the preset aggregates (metrics, dimensions, default date range), whether it pages, or what makes it 'human-friendly' versus the raw report tools.

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?

It is a single short sentence, so it is not bloated. However, the one sentence is largely non-informative, so brevity comes at the cost of usefulness rather than through efficient front-loading of real content.

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?

An output schema exists, so return values need not be described here. But for a report preset with 40% parameter coverage and a crowded family of sibling report tools, the description is too thin: it never says what the report is for or how it differs from the other report_* presets.

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 only 40%: account_id and direct_client_login are documented, but date_from, date_to, and campaign_id are not. The description does not compensate by explaining date-range semantics, filtering behavior, or what defaults apply when parameters are omitted.

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 names a verb-less but identifiable resource: a 'Direct adgroups report preset'. It is vague about what the report actually returns and does nothing to distinguish it from close siblings like direct.hf.report_performance, report_ads, or report_keywords. 'Human-friendly' is filler that adds no discriminating information.

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?

There is no when-to-use guidance, no prerequisites, and no mention of any alternative report preset. An agent cannot tell from this text when to pick the adgroups report over report_performance or report_ads.

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