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

Beyond the annotations (destructive/idempotent/openWorld), it explains the idempotency contract concretely: retrying with the same key returns the first outcome and never acts twice. It also discloses that a missing signed-in account triggers an interactive sign-in prompt on printdash.io, which is behavior an agent cannot infer from annotations or schema.

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 precondition and consent constraint are front-loaded ahead of parameter and auth details, and every sentence carries information. The ten-tool enumeration is long but functionally necessary for routing; slight density cost only.

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?

With an output schema present, the description need not explain return values, and it still covers preconditions, idempotency, retry semantics, and the auth flow. Nothing an agent needs to invoke this destructive tool safely is missing.

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 coverage is 100% and both field descriptions already explain confirmation_token and idempotency_key. The description echoes the same guidance ('pass its confirmation_token and a new UUID') and adds only the provenance link back to the prepare tool, so it contributes marginal value over the schema.

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 opens with a specific verb and scope: it 'carries out an action prepared by' a named set of prepare/approve tools, so the agent immediately understands this is the execution half of a prepare-then-confirm pattern. It distinguishes itself from sibling state-changing tools like place_order and approve_order by being the generic confirmation step for tokens those tools return.

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 states the precondition explicitly (the customer has seen the summary and said yes), adds a hard exclusion ('Never call it without the customer's agreement'), and enumerates the exact sibling tools whose tokens it consumes. No ambiguity about when to reach for it versus the prepare tools.

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