market_context
AI agents call market_context to retrieve information from Polymarket BTC Backtester MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to retrieve context about markets (likely metadata, current state, or descriptive information) with no modification capability. The empty description reduces confidence slightly, but the context of a backtesting server and naming convention suggest this is a read operation that queries market information without side effects.
From the tool's definition Tool name 'market_context' and sibling tools 'list_markets', 'get_price_series', 'data_coverage' suggest data retrieval operations.
Attacks that exploit this kind of access
market_context. It is categorised as a Read tool in the Polymarket BTC Backtester MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Polymarket BTC Backtester MCP Server MCP server in PolicyLayer and add a rule for market_context: 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 Polymarket BTC Backtester MCP Server. Nothing to install.
market_context 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 market_context 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 market_context. 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.
market_context is provided by the Polymarket BTC Backtester MCP Server MCP server (xin10ylop/polymarket-backtest-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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