Adjust brightness and contrast of the active layer
AI agents use photoshop_adjust_brightness_contrast to create or update resources in Photoshop MCP Windows-First — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Photoshop MCP Windows-First environment.
This tool modifies image data (brightness/contrast values) in a reversible manner—adjustments can be undone, adjusted further, or the document discarded without saving. It does not execute arbitrary code, delete data, move money, or trigger external operations. It is a standard non-destructive image editing operation, classified as Write.
From the tool's definition Tool name 'photoshop_adjust_brightness_contrast' and description 'Adjust brightness and contrast of the active layer' indicate modification of image layer properties.
Attacks that exploit this kind of access
Adjust brightness and contrast of the active layer. It is categorised as a Write tool in the Photoshop MCP Windows-First MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Photoshop MCP Windows-First MCP server in PolicyLayer and add a rule for photoshop_adjust_brightness_contrast: 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 Photoshop MCP Windows-First. Nothing to install.
photoshop_adjust_brightness_contrast 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 photoshop_adjust_brightness_contrast 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 photoshop_adjust_brightness_contrast. 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.
photoshop_adjust_brightness_contrast is provided by the Photoshop MCP Windows-First MCP server (rookietopred02-gif/photoshop-mcp-windows-first). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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