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

Annotations already disclose that this is a destructive, non-read-only operation. The description adds that the target is identified by exact public name, but it does not state whether archiving is reversible, whether confirmation is required, or what happens to the saved pack afterward. With annotations covering the safety profile, this is adequate but not rich.

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?

The description is a single front-loaded sentence with no filler. Every part of it contributes to identifying the action and the target.

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 one-parameter destructive tool with an output schema and informative annotations, the description covers the core invocation. However, it omits when-to-use guidance and any note on the effect of archiving, which are relevant for a destructive operation.

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 0%, so the description must carry the parameter meaning. It usefully identifies the single parameter as an 'exact public name' rather than an ID, but it gives no format, case-sensitivity, or source guidance. It partially compensates but leaves ambiguity.

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: 'Archive one saved audience pack.' This is clearer than the name alone and implies a distinct operation from siblings such as interests_save_targets or interests_list. It does not explicitly differentiate itself from adjacent interests_* tools, so it falls short of 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?

The description gives no guidance on when to use this tool versus alternatives, nor any preconditions or exclusions. It only says how to identify the pack ('by its exact public name'), not when archiving is appropriate.

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