save_project · QGIS MCP: Risk & Policy

WHAT IT DOES

What save_project does on QGIS MCP

AI agents use save_project to create or update resources in QGIS MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your QGIS MCP environment.

WHY IT NEEDS A POLICY

Why save_project needs a policy

This tool writes/persists project data to storage. It modifies the filesystem by saving project state, which is reversible (the previous version can be restored or the file can be edited/deleted separately). It does not delete data irreversibly, execute arbitrary code, or move money, so it is Write rather than Destructive, Execute, or Financial.

From the tool's definition Tool name 'save_project' and description 'Save the current project. Optionally specify a new path.' indicate creation or modification of project files on disk.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

save_project Rate-limited

save_project stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "save_project": {
      "limits": [
        {
          "counter": "save_project_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches QGIS MCP, so you can run agents against it safely.

FAQ

Questions about save_project

What does the save_project tool do? +

Save the current project. Optionally specify a new path. It is categorised as a Write tool in the QGIS MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on save_project? +

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

What risk level is save_project? +

save_project is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit save_project? +

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

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

save_project is provided by the QGIS MCP server (nkarasiak/qgis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.