replay_trade · TradingView MCP Jackson MCP: Risk & Policy

WHAT IT DOES

What replay_trade does on TradingView MCP Jackson

AI agents invoke replay_trade to trigger actions in TradingView MCP Jackson. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why replay_trade needs a policy

This tool triggers external operations (trade execution) whose effects depend on arguments (buy/sell/close). Although described as 'replay mode' (suggesting simulation), the tool executes trade actions that manipulate financial positions. Even if constrained to historical replay, the ability to programmatically execute buy/sell/close actions represents Execute-category risk.

From the tool's definition Tool name 'replay_trade' and description 'Execute a trade action in replay mode (buy, sell, or close position)' explicitly indicates execution of financial trade operations including buy, sell, and position closure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

replay_trade Rate-limited

replay_trade stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "replay_trade": {
      "limits": [
        {
          "counter": "replay_trade_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches TradingView MCP Jackson, so you can run agents against it safely.

FAQ

Questions about replay_trade

What does the replay_trade tool do? +

Execute a trade action in replay mode (buy, sell, or close position). It is categorised as a Execute tool in the TradingView MCP Jackson MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on replay_trade? +

Register the TradingView MCP Jackson MCP server in PolicyLayer and add a rule for replay_trade: 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 TradingView MCP Jackson. Nothing to install.

What risk level is replay_trade? +

replay_trade is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit replay_trade? +

Yes. Add a rate_limit block to the replay_trade 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.

How do I block replay_trade completely? +

Set action: deny in the PolicyLayer policy for replay_trade. 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.

What MCP server provides replay_trade? +

replay_trade is provided by the TradingView MCP Jackson MCP server (nimit791/tradingview-mcp-jackson). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.