Generate a scatter chart to visually display the distribution, clustering trends, and correlations of data points in two-dimensional or multi-dimensional space. Suitable for analyzing relationships between variables, outlier detection, and similar scenarios.
AI agents use generate_scatter_chart to create or update resources in Vchart — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Vchart environment.
This tool generates a visualization (scatter chart) which is a reversible creation of a visual artifact. It does not execute arbitrary code, delete data, or perform financial transactions. The output is a chart object that can be discarded or regenerated.
From the tool's definition Tool name begins with 'generate_' and description states it creates a scatter chart visualization. The tool produces new chart artifacts but does not persist or modify underlying data.
Documented attack patterns abuse exactly the kind of access generate_scatter_chart gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Vchart, and nothing reaches the server without passing your rules. This is the rule we recommend for generate_scatter_chart:
{
"version": "1",
"default": "deny",
"tools": {
"generate_scatter_chart": {
"limits": [
{
"counter": "generate_scatter_chart_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}generate_scatter_chart 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.
Free to start. No card required.
Generate a scatter chart to visually display the distribution, clustering trends, and correlations of data points in two-dimensional or multi-dimensional space. Suitable for analyzing relationships between variables, outlier detection, and similar scenarios. It is categorised as a Write tool in the Vchart MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Vchart MCP server in PolicyLayer and add a rule for generate_scatter_chart: 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 Vchart. Nothing to install.
generate_scatter_chart 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 generate_scatter_chart 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 generate_scatter_chart. 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.
generate_scatter_chart is provided by the Vchart MCP server (visactor/vchart-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Vchart tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
16 Vchart tools catalogued and risk-classified — across an index of 42,500+ MCP servers.