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Blender MCP Ultra

Blender MCP Ultra

by 3bdull4h2008
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

create_camera

Adds a camera to a Blender scene with defined position, rotation, focal length, sensor width, and near/far clipping distances.

Instructions

Create a camera with optical settings.

Args: name: Camera name. location: [x, y, z] position. rotation: [x, y, z] Euler rotation. lens: Focal length in mm. sensor_width: Sensor width in mm. clip_start: Near clipping distance. clip_end: Far clipping distance.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "create_camera"
  }
}

Input Schema

NameRequiredDescriptionDefault
lensNo
nameNoCamera
clip_endNo
locationNo
rotationNo
clip_startNo
sensor_widthNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv3.0.0

TDQS

B3.2/5.0
Behavior2/5

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

Annotations are absent, so the description carries the full burden of behavioral disclosure. It only says a camera is created with optical settings; it does not mention whether the new camera becomes active, what happens to existing cameras, where it is added, or what the tool returns.

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 compact and well-organized: one framing sentence followed by a tight argument list. Every line provides useful parameter information and no filler is present.

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

Completeness3/5

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

All parameters are documented, but the absence of an output schema and annotations means the agent still lacks information about the tool's return value and behavioral side effects. Combined with no usage-vs-sibling guidance, the description is adequate but not complete for confident invocation.

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?

Schema description coverage is 0%, but the description compensates by explaining all seven parameters, including useful semantic details such as Euler rotation, focal length in mm, and near/far clipping distance. It adds meaning beyond the bare schema titles, though it could go further on units and defaults.

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 states a clear action and resource: 'Create a camera with optical settings.' It distinguishes its core intent from the sibling configure_camera by using the verb 'create', though it does not explicitly name that sibling.

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?

No guidance is provided about when to use this tool versus alternatives such as configure_camera, setup_camera_track_to, or set_camera_framing. The implied context is 'when you need a new camera,' but there are no explicit exclusions or sibling comparisons.

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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