preview_with_adjustments · Rawtherapee MCP: Risk & Policy

WHAT IT DOES

What preview_with_adjustments does on Rawtherapee

AI agents invoke preview_with_adjustments to trigger actions in Rawtherapee. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why preview_with_adjustments needs a policy

The tool name suggests it generates a preview by applying adjustments, likely triggering RawTherapee CLI execution to process/render an image. Based on the server context of CLI-driven image processing and the sibling tools that modify processing parameters, this tool likely executes an image rendering operation. The description is empty, which lowers confidence.

From the tool's definition Tool name 'preview_with_adjustments' on a server that 'Enables AI-assisted RAW photo development via RawTherapee CLI' with 'a visual feedback loop that allows the LLM to see and iteratively edit images'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

preview_with_adjustments Rate-limited

preview_with_adjustments stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "preview_with_adjustments": {
      "limits": [
        {
          "counter": "preview_with_adjustments_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Rawtherapee, so you can run agents against it safely.

FAQ

Questions about preview_with_adjustments

What does the preview_with_adjustments tool do? +

preview_with_adjustments. It is categorised as a Execute tool in the Rawtherapee MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on preview_with_adjustments? +

Register the Rawtherapee MCP server in PolicyLayer and add a rule for preview_with_adjustments: 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 Rawtherapee. Nothing to install.

What risk level is preview_with_adjustments? +

preview_with_adjustments is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit preview_with_adjustments? +

Yes. Add a rate_limit block to the preview_with_adjustments 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.

How do I block preview_with_adjustments completely? +

Set action: deny in the PolicyLayer policy for preview_with_adjustments. 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.

What MCP server provides preview_with_adjustments? +

preview_with_adjustments is provided by the Rawtherapee MCP server (lucamarien/rawtherapee-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.