blender.create_material
Create or update one Blender material
This record as markdown: /tools/cowork-os/blender.create-material.md
What blender.create_material does on CoWork OS
AI agents use blender.create_material to create or update resources in CoWork OS, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CoWork OS environment.
Why blender.create_material is rated Medium
This tool creates or updates materials within a Blender project, which is a reversible write operation. While materials are project assets, they can be deleted or reverted, and the action does not constitute an irreversible destructive operation or data deletion.
From the tool's definition Tool name and description: 'Create or update one Blender material' — the verbs 'create' and 'update' indicate reversible modification of data (Blender material assets).
Attacks that exploit this kind of access
The rule that runs blender.create_material safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For blender.create_material, this is the rule to start with:
blender.create_material stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect CoWork OS, apply this rule, and every blender.create_material call is checked against it from then on.
Questions about blender.create_material
Create or update one Blender material. It is categorised as a Write tool in the CoWork OS MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the CoWork OS MCP server in PolicyLayer and add a rule for blender.create_material: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches CoWork OS. Nothing to install.
blender.create_material is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the blender.create_material rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for blender.create_material. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
blender.create_material is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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