Unity API Communicator MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. While 'Select and ping' implies both a selection action and some kind of notification/visual feedback ('ping'), the description doesn't explain what 'ping' means in this context, whether this requires specific permissions, or what happens if the asset path is invalid. This leaves significant behavioral gaps.

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, well-structured sentence that efficiently communicates the core functionality. It's front-loaded with the main action and includes a helpful example format for the parameter, with zero wasted words or redundant information.

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 simple single parameter with full schema coverage and no output schema, the description is reasonably complete for basic understanding. However, for a tool with no annotations and potentially complex 'ping' behavior in a development environment context, more detail about what 'ping' entails and error conditions would improve completeness.

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 input schema has 100% description coverage, with the 'path' parameter clearly documented in the schema itself. The description adds minimal value beyond the schema by mentioning 'by its path' and providing an example format in parentheses, but doesn't offer additional semantic context about path requirements or constraints.

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 tool's purpose with a specific verb ('Select and ping') and resource ('an asset in the Project window'), making it easy to understand what the tool does. However, it doesn't explicitly differentiate itself from sibling tools like 'selection_get', 'selection_set', or 'selection_focus', which might have overlapping selection functionality.

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 provides no guidance on when to use this tool versus alternatives. With many sibling tools related to selection (e.g., selection_get, selection_set, selection_focus) and assets (e.g., assets_list, asset_create), there's no indication of when this specific 'select and ping' operation is appropriate versus other selection or asset tools.

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