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

The annotations already declare this is a non-read-only, non-destructive, closed-world operation. The description adds the useful behavioral fact that the result is a change prepared for approval, but it does not explain what 'prepare' creates, whether it is idempotent, what approvals mean, or what happens to an existing pending change.

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 front-loaded sentence with no wasted words, but it is under-specified for a six-parameter mutation workflow and leaves too much unsaid. Brevity here comes at the cost of clarity.

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?

Although an output schema and annotations exist, the description is not complete enough for a six-parameter write tool with 0% schema description coverage. It omits parameter meaning, workflow routing, approval behavior, and any distinction from the numerous specific sibling prepare tools.

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% across six parameters, and the description mentions none of them. It provides no meaning for action, entity_type, entity_id, ad_account_id, new_value, or expected_current, so an agent gets zero semantic help beyond raw schema constraints.

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?

It states a specific verb ('Prepare') and a resource ('Console delivery change'), but 'Console delivery change' is vague and does not distinguish this tool from the many sibling prepare tools for budget, bid, and status changes. An agent cannot tell from the description whether this is a generic combined tool or a different workflow.

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 phrase 'for approval' hints that this precedes an approval/confirm step, but there is no explicit when-to-use guidance, no prerequisites, and no reference to alternatives such as adsets_prepare_budget_change or campaigns_prepare_status_change.

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