simulate_combat

THE RISK

High Risk

Why simulate_combat needs a policy

This tool executes code logic to simulate combat scenarios. While the simulation itself is deterministic and reversible, it operates on game state and could be chained with other tools to analyze, recommend changes, or trigger balancing adjustments.

From the tool's definition Tool description: 'Simulate a fight between entities and calculate time to kill'. The tool executes a simulation with effects determined by the entities and parameters passed to it.

Documented attack patterns abuse exactly the kind of access simulate_combat gives an agent:

POLICY

How to control simulate_combat

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Game Helper, and nothing reaches the server without passing your rules. This is the rule we recommend for simulate_combat:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "simulate_combat": {
      "limits": [
        {
          "counter": "simulate_combat_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

simulate_combat stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Game Helper — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Mcp Game Helper tools

Execute simulate_room_survival_time Estimate how long the player survives vs a group of enemies Execute simulate_skill_impact Simulates how effective a skill is based on damage and enemy HP Read predict_performance_impact Analyze a code snippet and warn about potential performance issues Read suggest_ai_state_machine Generates an AI state machine from a behavior description Read suggest_balancing Analyze stats and suggest balancing adjustments Read suggest_difficulty_ramp Analyzes if difficulty progression between levels is well balanced Read suggest_wave_timing Suggests time between enemy waves based on player DPS

All 8 Mcp Game Helper tools →

Execute tools on other servers

Android Forensics ADB MCP Server adb_shell_command EMBA-MCP run_emba_scan Frida Game Hacking MCP remove_breakpoint Procmon request_elevation

Go deeper

High-risk tools in Mcp Game Helper → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about simulate_combat

What does the simulate_combat tool do? +

Simulate a fight between entities and calculate time to kill. It is categorised as a Execute tool in the Mcp Game Helper MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on simulate_combat? +

Register the Mcp Game Helper MCP server in PolicyLayer and add a rule for simulate_combat: 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 Mcp Game Helper. Nothing to install.

What risk level is simulate_combat? +

simulate_combat is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit simulate_combat? +

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

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

simulate_combat is provided by the Mcp Game Helper MCP server (xhulz/mcp-game-helper). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Game Helper tool call.

Start from Mcp Game Helper, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →