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

The annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so 'without publishing or mutating external systems' largely restates structured data. The one piece of added value is the 'valid blueprint' precondition, implying validation must precede this call, but return/pagination behavior is not 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?

A single front-loaded sentence that states input, output, and the key non-mutation constraint with zero filler. Nothing is wasted or buried.

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?

With no output schema, the description helpfully identifies the return as 'text artifacts for review,' and annotations cover safety. It is slightly incomplete on blueprint structure and on whether the preview is persisted, but it is adequate for a one-parameter preview tool.

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 single 'blueprint' parameter is a nested object with 0% schema description coverage, so the schema conveys no structure. The description only implies the input is a blueprint that must be valid; it does not explain what fields the blueprint object requires or accepts.

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 (compile) and resource (blueprint) producing text artifacts, which is more concrete than the title alone. It implicitly distinguishes itself from xpex_factory_compile_plugin via 'without publishing,' but never names that sibling, so an agent must infer the boundary.

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 review without publishing' implies the use case (dry-run inspection before publication), and 'a valid blueprint' hints at a validate-first prerequisite. However, no alternative tool is named and there is no explicit when-to-use/when-not statement, leaving routing to be inferred.

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