Classify a market by structural features: resolution latency, liquidity profile, oracle type, and tail-risk indicators. Returns structured JSON.
AI agents call tag_market_structure to retrieve information from Predictfun without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and categorizes market metadata (resolution latency, liquidity profile, oracle type, tail-risk indicators) to return structured classification data. It is purely analytical with no side effects on market state, user positions, or financial transactions. No code execution, data modification, or irreversible actions are involved.
From the tool's definition Tool name 'tag_market_structure' and description 'Classify a market by structural features... Returns structured JSON' indicates retrieval and analysis of existing market data with no modification, creation, deletion, or execution of external operations.
Attacks that exploit this kind of access
Classify a market by structural features: resolution latency, liquidity profile, oracle type, and tail-risk indicators. Returns structured JSON. It is categorised as a Read tool in the Predictfun MCP Server, which means it retrieves data without modifying state.
Register the Predictfun MCP server in PolicyLayer and add a rule for tag_market_structure: 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 Predictfun. Nothing to install.
tag_market_structure 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 tag_market_structure 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 tag_market_structure. 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.
tag_market_structure is provided by the Predictfun MCP server (paulieb14/predictfun-subgraphs). 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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