ncloud_cdss_get_kafka_versions

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

Annotations already declare readOnlyHint=true, and the description adds that the call returns available Kafka versions identified by kafkaVersionCode, and frames it as a pre-creation lookup. There are no destructive or edge behaviors to disclose for a parameterless read operation. It could be richer about the exact response structure, but no output schema exists and the field name is provided.

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?

One sentence, no filler, with the action, resource, field, and purpose all front-loaded. Every part earns its place.

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 parameterless, read-only version lookup, the description covers what the tool does, why it would be used, and what content is returned (kafkaVersionCode). Nothing critical is missing for an agent to select and invoke it correctly.

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 input schema has 0 parameters and 100% schema description coverage, so the baseline is 4. The description's field name 'kafkaVersionCode' also hints at the meaningful value the caller should consume, compensating for the lack of an output 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 verb ('Get'), a concrete resource ('available Kafka version list'), and the named return field (kafkaVersionCode), plus the context (CDSS cluster creation). This is enough to distinguish it from sibling CDSS lookup tools like ncloud_cdss_get_node_products or ncloud_cdss_get_server_generations.

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?

'For CDSS cluster creation' gives a clear usage context: fetch versions when preparing to create a CDSS cluster. It doesn't name alternatives or exclusions, but for a zero-parameter lookup the context is sufficient to select it over unrelated CDSS getters.

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