reset_sub_user_usage

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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is covered; the description adds real value by specifying exactly what is overwritten (recorded traffic counters to zero) and that the change affects the account. It still doesn't say whether the reset is reversible or whether it is billed/irrecoverable, which keeps it below 5.

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 short sentences, the action statement first and the account-wide impact warning second. Nothing is padded and nothing needs restructuring.

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 explained, and the annotations cover destructiveness. However, for an irreversible mutation the description omits permissions needed, the source of valid IDs, and any note on scope of effect beyond 'the account'.

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?

Only one parameter and schema description coverage is 0%, so the description carries the burden; 'one or more sub-users' usefully confirms the array can hold multiple entries. It does not explain the ID format or provenance, so it only partially compensates for the coverage 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+resource: setting recorded traffic of sub-users to zero, which is clearly distinct from delete_sub_user or update_sub_user. It stops short of naming any sibling to contrast against, so a 4 rather than a 5.

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?

No guidance on when to reset versus update_sub_user, no prerequisites, and no mention of where to obtain sub_user_ids (e.g., list_sub_users). The only contextual hint is 'Changes the account,' which is a caveat, not usage direction.

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