modifier_batch_add
Add the same modifier to multiple objects at once.
This record as markdown: /tools/dwgx-blender-copilot/modifier-batch-add.md
What modifier_batch_add does on Blender Copilot MCP Server
AI agents use modifier_batch_add to create or update resources in Blender Copilot MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Blender Copilot MCP Server environment.
Why modifier_batch_add is rated Medium
This tool creates or modifies object modifiers in a Blender project, which is a reversible change (modifiers can be removed). It affects multiple objects simultaneously, increasing potential blast radius if applied incorrectly (e.g., adding unsuitable modifiers to many objects), but remains a Write operation rather than destructive since modifier additions are non-permanent and can be undone.
From the tool's definition Tool name 'modifier_batch_add' and description 'Add the same modifier to multiple objects at once' indicate creation/modification of object properties in Blender scenes.
Attacks that exploit this kind of access
The rule that runs modifier_batch_add safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Blender Copilot MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For modifier_batch_add, this is the rule to start with:
modifier_batch_add 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 Blender Copilot MCP Server, apply this rule, and every modifier_batch_add call is checked against it from then on.
Questions about modifier_batch_add
Add the same modifier to multiple objects at once. It is categorised as a Write tool in the Blender Copilot MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Blender Copilot MCP Server MCP server in PolicyLayer and add a rule for modifier_batch_add: 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 Blender Copilot MCP Server. Nothing to install.
modifier_batch_add 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 modifier_batch_add 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 modifier_batch_add. 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.
modifier_batch_add is provided by the Blender Copilot MCP Server MCP server (dwgx/blender-copilot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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