get_layers

THE RISK

Low Risk

Why get_layers needs a policy

This tool queries and returns existing layer information from a QGIS project without creating, modifying, deleting, or executing any operations. It is purely informational and has no blast radius if invoked by an AI agent—the worst outcome would be retrieving data the agent shouldn't see, but no actions would be taken on the layers themselves.

From the tool's definition Tool name is 'get_layers' and description states 'Retrieve all layers in the current project.' The verb 'retrieve' indicates data retrieval without modification or side effects.

Documented attack patterns abuse exactly the kind of access get_layers gives an agent:

POLICY

How to control get_layers

PolicyLayer is an MCP gateway — it sits between your AI agents and QGIS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_layers:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_layers": {}
  }
}

get_layers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register QGIS MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More QGIS MCP Server tools

Destructive remove_layer Remove a layer from the project by its ID. Execute execute_code Execute arbitrary PyQGIS code provided as a string. Execute execute_processing Execute a processing algorithm with the given parameters. Execute zoom_to_layer Zoom to the extent of a specified layer. Write load_project Load a QGIS project from the specified path. Write render_map Render the current map view to an image file with the specified dimensions. Write add_raster_layer Add a raster layer to the project. Write add_vector_layer Add a vector layer to the project.

All 15 QGIS MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_layers

What does the get_layers tool do? +

Retrieve all layers in the current project. It is categorised as a Read tool in the QGIS MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_layers? +

Register the QGIS MCP Server MCP server in PolicyLayer and add a rule for get_layers: 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 QGIS MCP Server. Nothing to install.

What risk level is get_layers? +

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

Can I rate-limit get_layers? +

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

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

get_layers is provided by the QGIS MCP Server MCP server (jjsantos01/qgis_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every QGIS MCP Server tool call.

Start from QGIS MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →