Select the entire image canvas. Parameters: - image_index: Target image index (default 0) Returns status dict.
AI agents use select_all 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.
Selection operations in image editors are Write-category because they create or modify editor state (the active selection) reversibly. While not destructive, this is a precursor to other operations and represents a state modification beyond mere reading. The severity is low because the operation itself has no visible persistent effect on the image; it merely prepares the canvas for subsequent operations.
From the tool's definition Tool name 'select_all' and description 'Select the entire image canvas' indicate a selection operation on an image within GIMP. Selection is a reversible state change that modifies the active selection but does not permanently alter image data.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access select_all 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 select_all:
{
"version": "1",
"default": "deny",
"tools": {
"select_all": {
"limits": [
{
"counter": "select_all_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}select_all 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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Select the entire image canvas. Parameters: - 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 select_all: 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.
select_all 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 select_all 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 select_all. 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.
select_all 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.
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79 Gimp tools catalogued and risk-classified — across an index of 43,000+ MCP servers.