This record as markdown: /tools/caravanglory-cocos-mcp-server/add-reference-image.md
What add_reference_image does on Cocos
AI agents use add_reference_image to create or update resources in Cocos, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Cocos environment.
Why add_reference_image is rated Medium
This tool creates or adds new reference images to a Cocos Creator scene. This is a reversible modification (Write category) rather than a destructive action, as reference images can be removed or modified later. Severity is medium because unintended addition of reference images could clutter the scene or introduce unintended visual elements, but the impact is containable and reversible.
From the tool's definition Tool name 'add_reference_image' and description 'Add reference image(s) to scene' indicate creation of new scene elements. The action modifies the scene by introducing new reference image objects, which is a reversible write operation.
Attacks that exploit this kind of access
The rule that runs add_reference_image safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Cocos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_reference_image, this is the rule to start with:
add_reference_image 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 Cocos, apply this rule, and every add_reference_image call is checked against it from then on.
Questions about add_reference_image
Add reference image(s) to scene. It is categorised as a Write tool in the Cocos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Cocos MCP server in PolicyLayer and add a rule for add_reference_image: 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 Cocos. Nothing to install.
add_reference_image 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 add_reference_image 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 add_reference_image. 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.
add_reference_image is provided by the Cocos MCP server (caravanglory/cocos-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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