Check MfT price across multiple pools (MfT/WETH, MfT/USDC, MfT/cbBTC) and flag arb opportunities. READ-ONLY, no wallet needed. Returns price per pool + max spread %. If spread > 1%, flags as arb opportunity with buy/sell pool recommendation.
AI agents call arb_signal to retrieve information from Baselings without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
arb_signal retrieves and queries price data from multiple pools to identify arbitrage opportunities, but does not execute trades, move funds, or modify any blockchain state. It is purely informational—comparing prices and recommending actions without actually taking them. This is a classic read-only data retrieval operation with no side effects.
From the tool's definition Tool explicitly marked READ-ONLY. Performs price checking across pools and calculates spreads. Returns data without modifying state, executing transactions, or triggering external operations.
Attacks that exploit this kind of access
Check MfT price across multiple pools (MfT/WETH, MfT/USDC, MfT/cbBTC) and flag arb opportunities. READ-ONLY, no wallet needed. Returns price per pool + max spread %. If spread > 1%, flags as arb opportunity with buy/sell pool recommendation. It is categorised as a Read tool in the Baselings MCP Server, which means it retrieves data without modifying state.
Register the Baselings MCP server in PolicyLayer and add a rule for arb_signal: 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 Baselings. Nothing to install.
arb_signal 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 arb_signal 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 arb_signal. 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.
arb_signal is provided by the Baselings MCP server (jimbo530/baselings-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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