results_merge · Ruflo MCP: Risk & Policy

WHAT IT DOES

What results_merge does on Ruflo

AI agents use results_merge 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 results_merge needs a policy

This tool performs data merging using CRDT semantics, which modifies existing data structures in a reversible manner. It does not delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely retrieve data (Read).

From the tool's definition Tool name 'results_merge' and description 'Merge results with CRDT' indicate a data modification operation. CRDT (Conflict-free Replicated Data Type) merging is a write operation that combines/modifies data structures.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

results_merge Rate-limited

results_merge 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": {
    "results_merge": {
      "limits": [
        {
          "counter": "results_merge_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 results_merge

What does the results_merge tool do? +

Merge results with CRDT. 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 results_merge? +

Register the Ruflo MCP server in PolicyLayer and add a rule for results_merge: 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 results_merge? +

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

Can I rate-limit results_merge? +

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

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

results_merge 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

results_merge 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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