Critical Risk →

remove_marker

Remove a marker by its label.

How to control remove_marker ↓

What remove_marker does on Metashape MCP Server

AI agents call remove_marker to permanently remove resources in Metashape MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

Critical Risk

Why remove_marker needs a policy

The tool removes a marker from the Metashape project by label. Deletion of project data (markers) is irreversible without a prior save/backup, placing it in the Destructive category. Severity is medium because markers are relatively small project elements, but losing them (e.g., GCPs used for georeferencing) could invalidate survey results.

From the tool's definition 'Remove a marker by its label' — removal of a named marker is an irreversible deletion operation

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

How to control remove_marker

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

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "remove_marker"
  ]
}

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

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

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Questions about remove_marker

What does the remove_marker tool do? +

Remove a marker by its label. It is categorised as a Destructive tool in the Metashape 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_marker? +

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

What risk level is remove_marker? +

remove_marker 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_marker? +

Yes. Add a rate_limit block to the remove_marker 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_marker completely? +

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

remove_marker is provided by the Metashape MCP Server MCP server (jenkinsm13/metashape-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Metashape MCP Server tool call.

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

Free to start. No card required.

112 Metashape MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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