CreateLogStreamIndex

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

With no annotations, the description must carry the full burden of behavioral disclosure. It fails to mention whether this creates, modifies, or deletes resources, what side effects occur, or any permissions required. The name 'Create' implies a mutation, but no concrete behavior is described.

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 extremely short but this is under-specification, not conciseness. It contains one vague sentence that repeats the tool name and offers no structured information, failing to earn 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?

Given the complex nested schema, missing annotations, and lack of output schema, the description is woefully inadequate. It provides no context on the operation's purpose, parameter meaning, expected outcomes, or interaction with other LTS features.

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 has 5 parameters with only 2 described ('region' and 'project_id' as override hints), yielding 40% coverage. The description adds no parameter explanations whatsoever, leaving the complex 'body' parameter with nested fields completely unexplained.

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 reads 'Huawei Cloud LTS operation CreateLogStreamIndex.' This merely restates the tool's name without defining what the operation does. It does not specify the verb and resource beyond the title, making it a tautology.

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?

No usage context or guidance is provided. The description does not indicate when to use this tool versus similar operations like UpdateLogStream or CreateLogStream, nor does it state prerequisites or intended scenarios.

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