generate_sankey_chart

Generate a sankey chart to visualize flows between stages or categories.

SERVERKylin Offline MCP ECharts SOURCE54dabang/kylin-arm64-64kb-page-size-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-sankey-chart.md

WHAT IT DOES

What generate_sankey_chart does on Kylin Offline MCP ECharts

AI agents use generate_sankey_chart to create or update resources in Kylin Offline MCP ECharts, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Kylin Offline MCP ECharts environment.

RISK

Why generate_sankey_chart is rated Medium

This tool creates chart data/output in a reversible manner—generating visual content that can be regenerated or deleted without permanent system damage. It does not execute arbitrary code, delete data, move money, or perform destructive operations. It is a chart generation utility, which falls under Write (creates data/content).

From the tool's definition Tool name is 'generate_sankey_chart' and description states it generates a chart. The server description confirms it generates offline charts using Apache ECharts SVG SSR. The tool creates a new chart artifact (SVG output) that is stored or returned.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs generate_sankey_chart safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Kylin Offline MCP ECharts, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For generate_sankey_chart, this is the rule to start with:

generate_sankey_chart Rate-limited

generate_sankey_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generate_sankey_chart": {
      "limits": [
        {
          "counter": "generate_sankey_chart_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Kylin Offline MCP ECharts, apply this rule, and every generate_sankey_chart call is checked against it from then on.

FAQ

Questions about generate_sankey_chart

What does the generate_sankey_chart tool do? +

Generate a sankey chart to visualize flows between stages or categories. It is categorised as a Write tool in the Kylin Offline MCP ECharts MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_sankey_chart? +

Register the Kylin Offline MCP ECharts MCP server in PolicyLayer and add a rule for generate_sankey_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 Kylin Offline MCP ECharts. Nothing to install.

What risk level is generate_sankey_chart? +

generate_sankey_chart is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generate_sankey_chart? +

Yes. Add a rate_limit block to the generate_sankey_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.

How do I block generate_sankey_chart completely? +

Set action: deny in the PolicyLayer policy for generate_sankey_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.

What MCP server provides generate_sankey_chart? +

generate_sankey_chart is provided by the Kylin Offline MCP ECharts MCP server (54dabang/kylin-arm64-64kb-page-size-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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