Save Three.js project copy

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

With no annotations, the description carries the full burden of behavioral disclosure. It states that the snapshot is persisted under a new project ID, but does not explain side effects (e.g., whether an existing ID is overwritten or rejected), permissions required, or what 'editor snapshot' means exactly. This is insufficient for a mutation operation.

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 redundant words. It is concise and easy to scan. However, the verb 'Persists' is slightly less common than 'Saves', which could reduce immediate clarity, but overall it earns high marks for brevity.

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 project object, an output schema, and three parameters, the description is far from complete. It omits any mention of return behavior, error cases, or the broader workflow. The tool's purpose is stated, but essential operational context is entirely absent, making it inadequate for a tool of this complexity.

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 description does not compensate. It only mentions 'new project ID' but provides no explanation of the 'project' or 'sourceProjectId' parameters, how they relate, or what the expected shape of the project object is beyond the schema. The user is left to infer all parameter semantics.

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 clearly states the action ('Persists') and the resource ('editor snapshot') under a new project ID. This distinguishes it from siblings like create_project, which likely creates a new blank project, by emphasizing the copy/save-as semantic.

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 description offers no guidance on when to use this tool versus alternatives such as create_project or export_project. It does not mention any exclusions, prerequisites, or scenarios for which this tool is the right choice.

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