message-box
WRITES HOST STATE — pops up a NATIVE OS dialog on the host machine via messagebox(text, caption, flags). The
This record as markdown: /tools/executor-mcp-roblox/message-box.md
What message-box does on Executor Mcp Roblox
AI agents call message-box to retrieve information from Executor Mcp Roblox without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why message-box is rated Low
Even though message-box only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs message-box safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Executor Mcp Roblox, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For message-box, this is the rule to start with:
message-box is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Executor Mcp Roblox, apply this rule, and every message-box call is checked against it from then on.
Questions about message-box
WRITES HOST STATE — pops up a NATIVE OS dialog on the host machine via messagebox(text, caption, flags). The. It is categorised as a Read tool in the Executor Mcp Roblox MCP Server, which means it retrieves data without modifying state.
Register the Executor Mcp Roblox MCP server in PolicyLayer and add a rule for message-box: 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 Executor Mcp Roblox. Nothing to install.
message-box is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the message-box 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 message-box. 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.
message-box is provided by the Executor Mcp Roblox MCP server (okenjioxx/executor-mcp-roblox). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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