affinity_export · Affinity MCP Server MCP: Risk & Policy

WHAT IT DOES

What affinity_export does on Affinity MCP Server

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

WHY IT NEEDS A POLICY

Why affinity_export needs a policy

Exporting a document creates new files on the file system, which is a reversible write operation. While it doesn't delete or overwrite existing files directly, it commits design work to persistent storage and could potentially overwrite existing export files depending on user interaction. This is less severe than destructive operations (which cannot be undone) but more severe than read-only queries.

From the tool's definition Tool name 'affinity_export' and description 'Export current document via File > Export > Export…' indicate the tool writes/saves document data to files on disk.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

affinity_export Rate-limited

affinity_export 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": {
    "affinity_export": {
      "limits": [
        {
          "counter": "affinity_export_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 Affinity MCP Server, so you can run agents against it safely.

FAQ

Questions about affinity_export

What does the affinity_export tool do? +

Export current document via File > Export > Export…. It is categorised as a Write tool in the Affinity 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 affinity_export? +

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

What risk level is affinity_export? +

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

Can I rate-limit affinity_export? +

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

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

affinity_export is provided by the Affinity MCP Server MCP server (sekharmalla/affinity-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.