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

With no annotations, the description carries the full behavioral burden and does it well: it discloses that arming requires typed confirmation, that posts-per-week is clamped to quota, that target accounts are revalidated server-side, and that omitted fields use defaults. These are meaningful behavioral details beyond a simple 'turns on autopilot' statement.

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 front-loaded with the trigger condition and is reasonably compact. The phrase 'recurring weekly automation — a recurring go-live' is slightly redundant, but each sentence adds useful information: when to use, behavioral caveat, and parameter clarifications.

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?

Given no output schema and no annotations, the description covers usage, behavior, and parameter semantics well. It does not describe what the tool returns or what happens immediately after arming, which would be helpful but is not critical for invoking the tool correctly. Overall, this is a complete and practical description for an agent.

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 compensate. It explains postsPerWeek (clamped to quota), reviewMode (approve vs autopublish), accountIds (revalidated server-side), and the confirmation requirement. The confirm parameter itself is not explicitly named, but the 'typed confirmation' requirement strongly implies it. This is strong compensation, though not exhaustive.

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 clearly identifies the action ('turn on/enable/start Autopilot') and the resource ('recurring weekly automation'). It also distinguishes itself from related siblings like status checks, generation, approval, and adjustment tools by focusing specifically on arming/enabling the automation.

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 gives explicit trigger phrases ('set up autopilot', 'turn on autopilot') and an explicit when-not: 'Call directly — don't read status first.' This tells the agent exactly when to invoke this tool instead of first checking status or using other autopilot-related tools.

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