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

Annotations already declare destructiveHint=true and idempotentHint=true, so the bar is lower; the description still adds real context about the two-step preview/owner-approval gate and requestId reuse for outcome recovery. It doesn't say what exactly is lost or whether removal is reversible, and the status-gating sentence is vague.

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?

Front-loaded with the action, followed by the safety workflow, in three tight sentences with no filler. The telegraphic phrasing makes a couple of clauses ambiguous, and the bare 'Fields: soclo://...' pointer is useful but terse.

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?

For a destructive mutation with full annotations, it provides the key operational context an agent needs: preview/approval flow, requestId reuse, and a documentation reference. Return/outcome semantics are not described, though the status gating clause hints at them.

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?

With only 50% schema description coverage, the description should compensate more than it does. It adds workflow meaning for confirm and requestId, but the critical identifiers campaignId/assetGroupId (nested), plus platform, validateOnly and accountId, get no explanation anywhere.

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 states a specific verb and resource ('Remove a Performance Max asset group'), which cleanly separates it from create/update/edit siblings even though no sibling is named explicitly. An agent can identify the operation without opening the schema.

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 spells out a concrete usage sequence: preview first, then an owner-approved confirm:true reusing the same requestId. It stops short of stating exclusions (e.g., when to update or detach assets instead of removing the whole group), and the 'Claim live only when status is active' clause is not clearly actionable.

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