joinCampaign · Affilync MCP Server MCP: Risk & Policy

WHAT IT DOES

What joinCampaign does on Affilync MCP Server

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

WHY IT NEEDS A POLICY

Why joinCampaign needs a policy

This tool creates an application/membership record in a campaign, which is a reversible write action. While some campaigns auto-approve (which could trigger downstream effects like affiliate link generation), the core action is submitting an application or joining a campaign — a data creation operation. It's not financially transactional itself, though it enables future earnings.

From the tool's definition Apply to join an affiliate campaign. Some campaigns auto-approve.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

joinCampaign Rate-limited

joinCampaign 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": {
    "joinCampaign": {
      "limits": [
        {
          "counter": "joincampaign_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 Affilync MCP Server, so you can run agents against it safely.

FAQ

Questions about joinCampaign

What does the joinCampaign tool do? +

Apply to join an affiliate campaign. Some campaigns auto-approve. It is categorised as a Write tool in the Affilync 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 joinCampaign? +

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

What risk level is joinCampaign? +

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

Can I rate-limit joinCampaign? +

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

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

joinCampaign is provided by the Affilync MCP Server MCP server (moneyflowz367/affilync-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.