Upload and run a PRG file. Accepts file path, base64-encoded binary data, or URL to download the PRG file.
AI agents invoke ultimate_run_prg_binary to trigger actions in Commodore 64 Ultimate MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool runs arbitrary programs (PRG files are executable binaries) on the Commodore 64 hardware. While not destructive by itself, execution of untrusted or maliciously crafted binaries could cause system instability, resource exhaustion, or unintended side effects.
From the tool's definition The tool 'ultimate_run_prg_binary' explicitly accepts file data and 'run[s] a PRG file,' which means executing arbitrary machine code on Commodore 64 hardware. The ability to upload binary code and execute it is characteristic of Execute category tools.
Documented attack patterns abuse exactly the kind of access ultimate_run_prg_binary gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Commodore 64 Ultimate MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ultimate_run_prg_binary:
{
"version": "1",
"default": "deny",
"tools": {
"ultimate_run_prg_binary": {
"limits": [
{
"counter": "ultimate_run_prg_binary_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}ultimate_run_prg_binary 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.
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Upload and run a PRG file. Accepts file path, base64-encoded binary data, or URL to download the PRG file. It is categorised as a Execute tool in the Commodore 64 Ultimate MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Commodore 64 Ultimate MCP Server MCP server in PolicyLayer and add a rule for ultimate_run_prg_binary: 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 Commodore 64 Ultimate MCP Server. Nothing to install.
ultimate_run_prg_binary is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the ultimate_run_prg_binary 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.
Set action: deny in the PolicyLayer policy for ultimate_run_prg_binary. 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.
ultimate_run_prg_binary is provided by the Commodore 64 Ultimate MCP Server MCP server (martijn-devrev/ultimate64mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Commodore 64 Ultimate MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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39 Commodore 64 Ultimate MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.