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get_scene_info

Retrieve detailed information about the current Blender scene including objects, materials, and settings to analyze or document your 3D project.

Instructions

Get detailed information about the current Blender scene

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Implementation Reference

  • The primary handler for the 'get_scene_info' tool. It is decorated with @mcp.tool() for registration and implements the logic by sending a 'get_scene_info' command to the Blender connection and returning the JSON-formatted scene information.
    @mcp.tool()
    def get_scene_info(ctx: Context) -> str:
        """Get detailed information about the current Blender scene"""
        try:
            blender = get_blender_connection()
            result = blender.send_command("get_scene_info")
            
            # Just return the JSON representation of what Blender sent us
            return json.dumps(result, indent=2)
        except Exception as e:
            logger.error(f"Error getting scene info from Blender: {str(e)}")
            return f"Error getting scene info: {str(e)}"
  • The docstring defining the tool's purpose and implicitly its schema (no input parameters besides context, returns string).
    """Get detailed information about the current Blender scene"""
  • The @mcp.tool() decorator registers this function as an MCP tool.
    @mcp.tool()
Behavior2/5

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. It states the tool 'Get[s] detailed information' but doesn't specify what 'detailed information' includes, whether it's read-only, if it requires specific Blender state, or any error conditions. This leaves significant gaps in understanding the tool's behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, clear sentence that directly states the tool's purpose without any fluff or redundancy. It's efficiently front-loaded and appropriately sized for a zero-parameter tool.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the lack of annotations and output schema, the description is incomplete. It doesn't explain what 'detailed information' entails, the format of the return value, or any dependencies on Blender's state. For a tool that presumably returns structured scene data, more context is needed to be fully helpful.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has 0 parameters with 100% schema description coverage, so no parameter information is needed. The description appropriately doesn't discuss parameters, earning a high baseline score for not adding unnecessary details.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Get' and the resource 'detailed information about the current Blender scene', making the purpose specific and understandable. However, it doesn't explicitly differentiate from sibling tools like 'get_object_info' or 'get_viewport_screenshot', which prevents a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

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 sibling tools like 'get_object_info' and 'get_viewport_screenshot' that might retrieve related information, there's no indication of context, prerequisites, or exclusions for this tool's usage.

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

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