Get characteristic group

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

The readOnlyHint annotation already establishes that this is a safe read operation. The description adds minimal behavioral context beyond confirming single-resource retrieval, but provides no information about not-found behavior, authentication, or return shape.

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 a single, efficient sentence with no redundant words. It includes the verb, resource, cardinality, and lookup method in a clear, front-loaded structure.

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 simple single-parameter read operation, the description is sufficiently complete: the agent knows what to request, what to pass, and that one entity will be returned. It does not describe the response shape, but the absence of an output schema makes that less critical here.

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?

The schema already covers the only parameter fully: id is required, is a string, and is described as a UUID. The description only restates 'by ID', adding no meaningful information beyond the schema, so the high-coverage baseline of 3 applies.

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 both the action ('Get') and the resource ('product characteristic group'), plus the cardinality ('one') and lookup mechanism ('by ID'). This clearly distinguishes it from sibling tools like list_characteristic_groups and get_characteristic.

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 phrase 'by ID' implies use when a known characteristic group ID is available, but there is no explicit guidance about when not to use it or that list_characteristic_groups should be used for fetching all groups. Usage is only implied, not explicitly routed.

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