remove_layer

THE RISK

Critical Risk

Why remove_layer needs a policy

Removing a layer from a GIS project eliminates data structures and their contents in a way that cannot be automatically undone without explicit undo/redo functionality. While QGIS may support undo operations, the tool itself performs a destructive action that cannot be reversed through the tool's own parameters. If an AI agent calls this on the wrong layer or a critical data layer, the loss is immediate.

From the tool's definition Tool name is 'remove_layer' and description states it will 'Remove a layer from the project by its ID.' The verb 'remove' indicates irreversible deletion of a layer and its associated data from a QGIS project.

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

POLICY

How to control remove_layer

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 remove_layer:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "remove_layer"
  ]
}

remove_layer disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

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.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More QGIS MCP Server tools

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. Write create_new_project Create a new project a save it

All 15 QGIS MCP Server tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in QGIS MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about remove_layer

What does the remove_layer tool do? +

Remove a layer from the project by its ID. It is categorised as a Destructive tool in the QGIS MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on remove_layer? +

Register the QGIS MCP Server MCP server in PolicyLayer and add a rule for remove_layer: 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 remove_layer? +

remove_layer is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit remove_layer? +

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

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

remove_layer 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 →