Parabolic SAR
AI agents call technicalIndicators_sar to retrieve information from MCP Avantage without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Parabolic SAR is a technical indicator used for trend analysis and stop-loss placement in trading. The tool retrieves or calculates this indicator value based on market data—a pure read operation with no side effects. It does not execute trades, modify data, delete records, or commit financial obligations. Even in a financial context, this is informational data retrieval, not a financial action.
From the tool's definition Tool name 'technicalIndicators_sar' and description 'Parabolic SAR' indicate retrieval of a technical analysis indicator (Parabolic Stop and Reverse).
Attacks that exploit this kind of access
Parabolic SAR. It is categorised as a Read tool in the MCP Avantage MCP Server, which means it retrieves data without modifying state.
Register the MCP Avantage MCP server in PolicyLayer and add a rule for technicalIndicators_sar: 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 Avantage. Nothing to install.
technicalIndicators_sar 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 technicalIndicators_sar 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 technicalIndicators_sar. 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.
technicalIndicators_sar is provided by the MCP Avantage MCP server (missionsquad/mcp-avantage). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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