upgrade_contam_project · CONTAM MCP: Risk & Policy

WHAT IT DOES

What upgrade_contam_project does on CONTAM MCP

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

WHY IT NEEDS A POLICY

Why upgrade_contam_project needs a policy

This tool modifies an existing project file by converting/upgrading it to a newer format. It is a Write operation as it rewrites the file contents. While it could overwrite the original file (potentially destructive), upgrades typically produce a new or updated version rather than irreversibly destroying data, so Write is most appropriate.

From the tool's definition 'upgrade an older .prj file to a newer CONTAM project format using prjup'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upgrade_contam_project Rate-limited

upgrade_contam_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": {
    "upgrade_contam_project": {
      "limits": [
        {
          "counter": "upgrade_contam_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 CONTAM MCP, so you can run agents against it safely.

FAQ

Questions about upgrade_contam_project

What does the upgrade_contam_project tool do? +

Use this when you need to upgrade an older .prj file to a newer CONTAM project format using prjup. It is categorised as a Write tool in the CONTAM 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 upgrade_contam_project? +

Register the CONTAM MCP server in PolicyLayer and add a rule for upgrade_contam_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 CONTAM MCP. Nothing to install.

What risk level is upgrade_contam_project? +

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

Can I rate-limit upgrade_contam_project? +

Yes. Add a rate_limit block to the upgrade_contam_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 upgrade_contam_project completely? +

Set action: deny in the PolicyLayer policy for upgrade_contam_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 upgrade_contam_project? +

upgrade_contam_project is provided by the CONTAM MCP server (summer521521/contam_plugin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.