Low Risk

listLayers

获取当前所有图层列表(含 ID、名称、类型、可见性)

Part of the Cesium Mcp Runtime server.

listLayers is read-only, but an agent in a loop can still rack up calls and cost. PolicyLayer caps every call before it runs. Live in minutes.

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AI agents call listLayers to retrieve information from Cesium Mcp Runtime without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

Even though listLayers only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "listLayers": {}
  }
}

See the full Cesium Mcp Runtime policy for all 43 tools.

Get this rule live on your own Cesium Mcp Runtime server in minutes. PolicyLayer enforces it on every call, before it runs.

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View all 43 tools →

These attack patterns abuse exactly the kind of access listLayers gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so listLayers only ever does what you allow.

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Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.

What does the listLayers tool do? +

获取当前所有图层列表(含 ID、名称、类型、可见性). It is categorised as a Read tool in the Cesium Mcp Runtime MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on listLayers? +

Register the Cesium Mcp Runtime MCP server in PolicyLayer and add a rule for listLayers: 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 Cesium Mcp Runtime. Nothing to install.

What risk level is listLayers? +

listLayers is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit listLayers? +

Yes. Add a rate_limit block to the listLayers 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 listLayers completely? +

Set action: deny in the PolicyLayer policy for listLayers. 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 listLayers? +

listLayers is provided by the Cesium Mcp Runtime MCP server (gaopengbin/cesium-mcp-runtime). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Cesium Mcp Runtime tool call.

Deterministic rules across all 43 Cesium Mcp Runtime tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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