overprint_black
Set or clear overprint on black, as Edit > Edit Colors > Overprint Black does, by script: fills and strokes whose black is at least the given percentage. By default only pure black (no cyan, magenta or yellow) and gray qualify; includeCmyBlacks adds rich blacks and includeSpotBlacks adds spot col...
This record as markdown: /tools/adobe-mcp-illustrator/overprint-black.md
What overprint_black does on Adobe Mcp Illustrator
AI agents call overprint_black to permanently remove resources in Adobe Mcp Illustrator, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why overprint_black is rated Critical
An AI agent that decides to call overprint_black doesn't hesitate, doesn't double-check, and doesn't stop at one. Whatever it removes from Adobe Mcp Illustrator is gone. There is no undo for destructive operations.
Attacks that exploit this kind of access
The rule that runs overprint_black safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Adobe Mcp Illustrator, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For overprint_black, this is the rule to start with:
overprint_black is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Adobe Mcp Illustrator, apply this rule, and every overprint_black call is checked against it from then on.
Questions about overprint_black
Set or clear overprint on black, as Edit > Edit Colors > Overprint Black does, by script: fills and strokes whose black is at least the given percentage. By default only pure black (no cyan, magenta or yellow) and gray qualify; includeCmyBlacks adds rich blacks and includeSpotBlacks adds spot colours whose CMYK equivalent holds that much black. Overprint matters in separated CMYK output. It is categorised as a Destructive tool in the Adobe Mcp Illustrator MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Adobe Mcp Illustrator MCP server in PolicyLayer and add a rule for overprint_black: 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 Adobe Mcp Illustrator. Nothing to install.
overprint_black is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the overprint_black 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 overprint_black. 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.
overprint_black is provided by the Adobe Mcp Illustrator MCP server (adobe-mcp-illustrator). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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