# generate_sankey_chart

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

Agent View of the PolicyLayer registry record for `generate_sankey_chart`. HTML page: https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-sankey-chart

## Facts

- Tool: `generate_sankey_chart`
- Server: Kylin Offline MCP ECharts (`54dabang/kylin-arm64-64kb-page-size-mcp`) — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp.md
- Homepage: https://github.com/54dabang/kylin-arm64-64kb-page-size-mcp
- Risk category: Write (Medium risk)
- Registry record: grade D, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "generate_sankey_chart",
    "arguments": {}
  }
}
```

## 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 own 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."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Kylin Offline MCP ECharts:

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

## Other tools on Kylin Offline MCP ECharts (16)

- `generate_echarts` — Execute — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-echarts.md
- `generate_gauge_chart` — Execute — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-gauge-chart.md
- `generate_graph_chart` — Execute — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-graph-chart.md
- `generate_candlestick_chart` — Read — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-candlestick-chart.md
- `generate_bar_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-bar-chart.md
- `generate_boxplot_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-boxplot-chart.md
- `generate_funnel_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-funnel-chart.md
- `generate_heatmap_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-heatmap-chart.md
- `generate_line_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-line-chart.md
- `generate_parallel_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-parallel-chart.md
- `generate_pie_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-pie-chart.md
- `generate_radar_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-radar-chart.md
- `generate_scatter_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-scatter-chart.md
- `generate_sunburst_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-sunburst-chart.md
- `generate_tree_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-tree-chart.md
- `generate_treemap_chart` — Write — https://policylayer.com/tools/54dabang-kylin-arm64-64kb-page-size-mcp/generate-treemap-chart.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=54dabang-kylin-arm64-64kb-page-size-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/54dabang-kylin-arm64-64kb-page-size-mcp