Edit an existing text layer's content or formatting. Parameters: - layer_name: Name of the text layer to edit - text: New text content (omit to leave unchanged) - font: New font family (omit to leave unchanged) - size: New font size in pixels (omit to leave unchanged) - color: New text color (omi...
AI agents use edit_text to create or update resources in Gimp — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Gimp environment.
This tool creates or modifies data (text layer properties) within an image in a reversible manner. It does not execute arbitrary code, delete data irreversibly, or incur financial obligations. The severity is medium because an AI agent misusing this could alter user images, but the changes are recoverable and the blast radius is limited to the target image layer rather than system-wide or multi-image impacts.
From the tool's definition Tool description states 'Edit an existing text layer's content or formatting' with parameters to modify 'text content', 'font family', 'font size', and 'text color'. The operation is reversible (undo in GIMP) and modifies image data without deletion.
Documented attack patterns abuse exactly the kind of access edit_text gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Gimp, and nothing reaches the server without passing your rules. This is the rule we recommend for edit_text:
{
"version": "1",
"default": "deny",
"tools": {
"edit_text": {
"limits": [
{
"counter": "edit_text_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}edit_text 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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Edit an existing text layer's content or formatting. Parameters: - layer_name: Name of the text layer to edit - text: New text content (omit to leave unchanged) - font: New font family (omit to leave unchanged) - size: New font size in pixels (omit to leave unchanged) - color: New text color (omit to leave unchanged) - image_index: Target image index (default 0) Returns status dict. It is categorised as a Write tool in the Gimp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Gimp MCP server in PolicyLayer and add a rule for edit_text: 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 Gimp. Nothing to install.
edit_text 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 edit_text 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 edit_text. 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.
edit_text is provided by the Gimp MCP server (maorcc/gimp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Gimp, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
79 Gimp tools catalogued and risk-classified — across an index of 43,000+ MCP servers.