Flip one or more coins and show results.
AI agents call flip_coin to retrieve information from Dice Roller MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves randomized outcomes (coin flip results) with no side effects on any system state or data. It is purely informational, similar to rolling dice—a read operation that queries a random number generator and returns the outcome. The 'sibling tools' context (dice rolling mechanics) confirms this is a harmless RNG utility for tabletop gaming simulation.
From the tool's definition Tool performs coin flipping with results display. No modification of data, no code execution, no financial impact, no irreversible actions. The description states it shows results of a probabilistic operation.
Attacks that exploit this kind of access
Flip one or more coins and show results. It is categorised as a Read tool in the Dice Roller MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Dice Roller MCP Server MCP server in PolicyLayer and add a rule for flip_coin: 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 Dice Roller MCP Server. Nothing to install.
flip_coin 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 flip_coin 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 flip_coin. 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.
flip_coin is provided by the Dice Roller MCP Server MCP server (swayam-mishra/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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