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

No annotations are provided, so the description carries the full behavioral burden. 'Go back' implies a mutation that replaces custom wording, but it does not state whether the reset is reversible, what permissions are required, or whether existing customized content is lost.

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 single sentence is front-loaded and wastes no words. However, its brevity contributes to under-specification rather than pure efficiency, since key behavioral and parameter details are absent.

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?

This is a mutation tool with no annotations, 0% schema description coverage, and two required parameters. The description omits usage conditions, overwrite consequences, and parameter meaning, so it is not complete enough for an agent to call it confidently despite the low parameter count and available output 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%, and the description does not explain either parameter. 'One kind' vaguely gestures at the 'kind' parameter, but the enum values and the required 'shop_id' are left entirely to 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 states a specific action ('Go back') on a specific resource ('built-in wording for one kind of automatic customer email'), making it clear that this resets an email template to its default. It does not explicitly name or contrast with sibling tools such as messages_saveTemplate or messages_previewTemplate, but the reset semantics are distinct enough to infer.

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 implies when the tool might be used (wanting the built-in wording), but gives no explicit when-to-use, when-not-to-use, or alternative guidance. With siblings like messages_saveTemplate and messages_previewTemplate, an agent would benefit from knowing that this overwrites custom content rather than saving or previewing it.

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