agent_update · Ruflo MCP: Risk & Policy

WHAT IT DOES

What agent_update does on Ruflo

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

WHY IT NEEDS A POLICY

Why agent_update needs a policy

This tool modifies agent properties or configuration state without executing arbitrary operations or destroying data. In a swarm coordination system, updating an agent's parameters or state is a Write operation.

From the tool's definition Tool name 'agent_update' with description 'Mutate a tracked agent' indicates modification of agent state/configuration. The verb 'mutate' combined with 'update' confirms reversible data changes rather than deletion or execution.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

agent_update Rate-limited

agent_update 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": {
    "agent_update": {
      "limits": [
        {
          "counter": "agent_update_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 Ruflo, so you can run agents against it safely.

FAQ

Questions about agent_update

What does the agent_update tool do? +

Mutate a tracked agent\. It is categorised as a Write tool in the Ruflo MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on agent_update? +

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

What risk level is agent_update? +

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

Can I rate-limit agent_update? +

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

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

agent_update is provided by the Ruflo MCP server (ruvnet/ruflo). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

agent_update is one line of Ruflo's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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