remove_layer

THE RISK

Critical Risk

Why remove_layer needs a policy

This tool irreversibly removes a layer from a QGIS project. Once removed, the layer's configuration and associations within the project are deleted. While the underlying data file may persist, the project state change is not easily reversible through normal tool operations.

From the tool's definition The tool name 'remove_layer' combined with description 'Remove a layer from the project by its ID' indicates an irreversible deletion operation.

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 QGISMCP, 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 QGISMCP — 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 QGISMCP 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 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 Write save_project Save the current project to the given path, or to the current project path if not specifie Read get_layer_features Retrieve features from a vector layer with an optional limit.

All 15 QGISMCP tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in QGISMCP → 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 QGISMCP 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 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 QGISMCP. 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 (syauqi-uqi/qgis_mcp_modify1). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every QGISMCP tool call.

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

CHECK YOUR STACK →