replay_step

Advance one bar in replay mode

SERVERTradingView MCP Bridge SOURCEbyeung888/tradingview-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/byeung888-tradingview-mcp/replay-step.md

WHAT IT DOES

What replay_step does on TradingView MCP Bridge

AI agents invoke replay_step to trigger actions in TradingView MCP Bridge. 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.

RISK

Why replay_step is rated High

This tool controls the TradingView application's replay playback state by advancing one bar, which is an external operation executed against a running application. It doesn't simply read data, nor does it write/create persistent data or delete anything. It triggers a UI/application action via CDP, making Execute the appropriate category. Misuse could disrupt chart analysis sessions but has limited blast radius.

From the tool's definition Advance one bar in replay mode — triggers an external operation in the TradingView Desktop app via Chrome DevTools Protocol

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs replay_step safely

PolicyLayer is an MCP gateway: it sits between your AI agents and TradingView MCP Bridge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For replay_step, this is the rule to start with:

replay_step Rate-limited

replay_step 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_step": {
      "limits": [
        {
          "counter": "replay_step_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect TradingView MCP Bridge, apply this rule, and every replay_step call is checked against it from then on.

FAQ

Questions about replay_step

What does the replay_step tool do? +

Advance one bar in replay mode. It is categorised as a Execute tool in the TradingView MCP Bridge 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_step? +

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

What risk level is replay_step? +

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

Can I rate-limit replay_step? +

Yes. Add a rate_limit block to the replay_step 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_step completely? +

Set action: deny in the PolicyLayer policy for replay_step. 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_step? +

replay_step is provided by the TradingView MCP Bridge MCP server (byeung888/tradingview-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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