uploadAsset · AEM MCP Server MCP: Risk & Policy

WHAT IT DOES

What uploadAsset does on AEM MCP Server

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

WHY IT NEEDS A POLICY

Why uploadAsset needs a policy

This tool creates new assets in AEM's Digital Asset Management (DAM) repository, which is a reversible Write operation. While uploads can consume storage and potentially overwrite existing assets if naming conflicts occur, the primary action is data creation rather than deletion.

From the tool's definition Tool name 'uploadAsset' and description 'Upload a new asset to AEM DAM' indicate creation of new data in the Digital Asset Management system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

uploadAsset Rate-limited

uploadAsset 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": {
    "uploadAsset": {
      "limits": [
        {
          "counter": "uploadasset_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 AEM MCP Server, so you can run agents against it safely.

FAQ

Questions about uploadAsset

What does the uploadAsset tool do? +

Upload a new asset to AEM DAM. It is categorised as a Write tool in the AEM MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on uploadAsset? +

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

What risk level is uploadAsset? +

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

Can I rate-limit uploadAsset? +

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

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

uploadAsset is provided by the AEM MCP Server MCP server (udaykumarbpatel/aem-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.