ms_create_source

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

No annotations are provided, so the description carries the full behavioral burden. It states that a new asset is created, but does not disclose side effects, permissions, whether the asset is persisted automatically, or how it interacts with the UE5 project.

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 short and front-loaded: the first sentence states the action, and the Args section efficiently documents both parameters. There is no redundant or filler text.

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 two-parameter creation tool with an output schema, the description covers the core action and parameter meanings. However, with no annotations and no sibling guidance, it leaves gaps around prerequisites, side effects, and when this tool is preferred over other MetaSounds tools.

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%, so the description must compensate. It explains that name is the MetaSound asset name and that asset_type accepts Source, Patch, or Preset, adding useful semantics beyond the bare schema titles.

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 and resource: 'Create a new MetaSounds source builder in UE5.' It is clear what the tool does, but it does not distinguish itself from nearby siblings such as ms_convert_to_preset or ms_build_graph.

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 guidance on when to use this tool versus alternatives. It mentions valid asset_type values, but never states when a Source, Patch, or Preset should be created, nor which sibling tool handles other related tasks.

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