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

Annotations already declare destructiveHint=true, idempotentHint=true and openWorldHint=false, so the safety profile is covered. The description still adds substantive context beyond that: warmup_only is a permanent state change, wall_text customizes the installed wall, and 'replays never reclaim or renew a hold' describes replay behavior. The only shortfall is that it doesn't clarify the interaction between idempotentHint and the destructive permanence.

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?

Four dense sentences, front-loaded with the action and required credentials before the conditional behaviors. Every sentence carries information, though the heavy metaphor makes individual sentences slower to parse than they need to be.

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 described, and the description covers the permanence and replay semantics of this destructive mutation. It remains incomplete in two areas: it implies agent_token is always supplied (only session_id and answer are required) and never explains the required 'answer' field.

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 only 33%, so the description must carry weight, and it does explain snack_id, wall_text and warmup_only in functional terms beyond their raw types. But the core required parameter 'answer' gets no explanation anywhere — an agent learns only that it is a 3-200 char string — which is a meaningful gap for the primary input.

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 verb and object in domain terms — 'Submit the restored level-1 transmission' — plus the credential inputs, so the broad action is inferable. But the in-world jargon ('restored transmission', 'takeover', 'hold') leaves the actual effect ambiguous, and there is no contrast with nearby siblings such as sign_root_takeover, start_takeover_challenge, or claim_root, so an agent cannot easily place it in the takeover flow.

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 encodes real branching conditions — warmup_only=true enables first publication without a wall, otherwise a starter wall is installed, and higher levels require snack_id — which is usable guidance on how to invoke it. However, it never says when to choose this tool over the other takeover-related siblings, so the routing guidance is only implicit.

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