faction_rep_add · RPG Ledger MCP Server MCP: Risk & Policy

WHAT IT DOES

What faction_rep_add does on RPG Ledger MCP Server

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

WHY IT NEEDS A POLICY

Why faction_rep_add needs a policy

The tool name suggests a mutation operation that increases or modifies faction reputation values within the RPG campaign state. This is a Write operation—it creates or modifies data reversibly. However, confidence is moderate because the description is empty, leaving some ambiguity about exact behavior.

From the tool's definition Tool name 'faction_rep_add' suggests adding/modifying faction reputation state. Server description indicates it 'manages campaign state' and supports 'campaign mutations'. The 'add' operation modifies data reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

faction_rep_add Rate-limited

faction_rep_add 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": {
    "faction_rep_add": {
      "limits": [
        {
          "counter": "faction_rep_add_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 RPG Ledger MCP Server, so you can run agents against it safely.

FAQ

Questions about faction_rep_add

What does the faction_rep_add tool do? +

faction_rep_add. It is categorised as a Write tool in the RPG Ledger 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 faction_rep_add? +

Register the RPG Ledger MCP Server MCP server in PolicyLayer and add a rule for faction_rep_add: 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 RPG Ledger MCP Server. Nothing to install.

What risk level is faction_rep_add? +

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

Can I rate-limit faction_rep_add? +

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

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

faction_rep_add is provided by the RPG Ledger MCP Server MCP server (sepa79/rpg-ledger-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.