get_painted_regions
AI agents call get_painted_regions to retrieve information from MCPacer without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix indicates a read-only retrieval operation. No description provided to suggest side effects, modification, or external execution. Given that all sibling tools are Read category operations for a running coach platform, this tool almost certainly retrieves visualization or metadata about painted/highlighted regions (likely map or activity visualizations).
From the tool's definition Tool name 'get_painted_regions' and the context of sibling tools (all read operations like get_activities, get_activity_by_id, get_activity_streams) suggest data retrieval.
Documented attack patterns abuse exactly the kind of access get_painted_regions gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCPacer, and nothing reaches the server without passing your rules. This is the rule we recommend for get_painted_regions:
{
"version": "1",
"default": "deny",
"tools": {
"get_painted_regions": {}
}
}get_painted_regions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_painted_regions. It is categorised as a Read tool in the MCPacer MCP Server, which means it retrieves data without modifying state.
Register the MCPacer MCP server in PolicyLayer and add a rule for get_painted_regions: 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 MCPacer. Nothing to install.
get_painted_regions is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_painted_regions 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 get_painted_regions. 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.
get_painted_regions is provided by the MCPacer MCP server (wernerpe/mcpacer). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCPacer, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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32 MCPacer tools catalogued and risk-classified — across an index of 43,000+ MCP servers.