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

The annotations already declare readOnlyHint=false, destructiveHint=true, and openWorldHint=true. The description adds only that launch may occur if requested, but does not explain what is destructive about creating an experiment, whether launching affects live traffic, what permissions are required, or how idempotency_key behaves.

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 front-loaded sentence with no wasted words. However, it is under-specified for a nine-parameter mutation tool, so conciseness comes at the cost of necessary operational detail.

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 complex create tool with nested inputs, five required parameters, zero schema descriptions, no output schema, and destructive/open-world annotations. The description omits prerequisites, launch behavior, idempotency semantics, and what the tool returns, leaving significant gaps for an agent to 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?

Schema description coverage is 0%, and the schema has nine parameters including nested objects. The description only indirectly references the optional 'launch' parameter and provides no meaning for required parameters such as workspace, variant_sets, goal, or idempotency_key.

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 ('Create') and resource ('click experiment'), but 'prepared' is ambiguous and it does not differentiate the tool from the sibling abtests_prepare. An agent cannot confidently tell from the description alone whether this creates a new experiment or prepares one for later launch.

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?

There is no explicit guidance on when to use this tool versus abtests_prepare, abtests_update, or abtests_set_status. The phrase 'launch if requested' hints at an optional immediate launch but does not specify the conditions under which launch should be true or false.

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