AI agents use adjust_curves to create or update resources in Inkscape — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Inkscape environment.
Based on the tool name and server context, 'adjust_curves' likely applies a curves adjustment to an image or vector graphic, modifying its tonal/color properties. This is a reversible edit (Write category). Confidence is reduced due to the empty description. Severity is medium as misuse could alter graphics files, but effects are generally reversible.
From the tool's definition Tool name 'adjust_curves' on an Inkscape vector graphics editing server; description is empty and uninformative.
Documented attack patterns abuse exactly the kind of access adjust_curves gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Inkscape, and nothing reaches the server without passing your rules. This is the rule we recommend for adjust_curves:
{
"version": "1",
"default": "deny",
"tools": {
"adjust_curves": {
"limits": [
{
"counter": "adjust_curves_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}adjust_curves 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.
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adjust_curves. It is categorised as a Write tool in the Inkscape MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Inkscape MCP server in PolicyLayer and add a rule for adjust_curves: 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 Inkscape. Nothing to install.
adjust_curves 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 adjust_curves 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 adjust_curves. 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.
adjust_curves is provided by the Inkscape MCP server (sandraschi/inkscape-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Inkscape, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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