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

Beyond the destructiveHint/openWorldHint annotations, the description discloses the server-side behavior: a fresh native TikTok read on the original advertiser route, persistence of an approval draft, and replacement of the decision's preparation state. This is consistent with destructiveHint=true and adds genuine behavioral context the annotations do not carry.

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 paragraphs, front-loaded with the core action and followed by the safety directive and the state-change note. Nearly every sentence carries weight, with only mild redundancy between the approval/confirmation instructions.

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 the description does well on workflow and state change, and annotations cover the safety profile. But with no output schema and 0% parameter coverage, the tool's inputs remain unexplained, leaving a real gap an agent must fill from the raw schema.

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 three parameters, yet the description does not explain decision_ref, idempotency_key, or connection_context. It only alludes to 'one open owned decision,' leaving the idempotency and connection-context semantics entirely undocumented.

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: 'Prepare the exact management action for one open owned decision,' which is distinct from optimization_list_decisions or optimization_evaluate. It is clear what the tool does, though it never explicitly contrasts itself with the sibling optimization tools that also prepare/confirm actions.

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 routes the agent forward, instructing it to obtain confirmation via delivery_status_confirm or budget_confirm and never auto-confirm, which is useful workflow context. However, it gives no criteria for choosing this tool over optimization_evaluate or the other *_prepare tools, so the when-to-use guidance is only implied.

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