market_snapshot
One-call macro dashboard: major indexes, rates, commodities, crypto, VIX — each price + %change (free public data, best-effort; rows degrade individually).
This record as markdown: /tools/com-wingmanprotocol-agent-gateway/market-snapshot.md
What market_snapshot does on Gateway
AI agents call market_snapshot to retrieve information from Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why market_snapshot is rated Low
This is a passive data retrieval tool that queries and displays publicly available financial market information. While it relates to financial data, it performs no financial transactions, commitments, money movement, or irreversible actions. The 'best-effort' qualifier and individual row degradation indicate read-only behavior with no side effects.
From the tool's definition Tool retrieves public market data (indexes, rates, commodities, crypto, VIX prices and percent changes) with no modification, creation, or destruction of data. Description states 'free public data' and uses passive 'dashboard' language.
Attacks that exploit this kind of access
The rule that runs market_snapshot safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For market_snapshot, this is the rule to start with:
market_snapshot is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Gateway, apply this rule, and every market_snapshot call is checked against it from then on.
Questions about market_snapshot
One-call macro dashboard: major indexes, rates, commodities, crypto, VIX — each price + %change (free public data, best-effort; rows degrade individually). It is categorised as a Read tool in the Gateway MCP Server, which means it retrieves data without modifying state.
Register the Gateway MCP server in PolicyLayer and add a rule for market_snapshot: 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 Gateway. Nothing to install.
market_snapshot 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_snapshot 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_snapshot. 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_snapshot is provided by the Gateway MCP server (https://wingmanprotocol.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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