AI agents around MT5 — where should the execution boundary be?

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I'm experimenting with something a bit different around MetaTrader 5 and I'd really like to hear how other MT5 developers would approach it.

I'm building a local multi-agent setup where different agents have different jobs.

For example:

  • one watches financial news;

  • another tries to judge whether a headline may matter for a specific instrument;

  • a Trader agent monitors the MT5 account and open positions;

  • another agent helps with MQL5 / MT5-Python development.

The part I'm still thinking carefully about is execution.

I don't want to give an LLM direct unrestricted access to MetaTrader 5.

So right now the Trader has two separate capabilities:

mt5_query — read-only access to account state, positions and orders.

mt5_signal — it can submit a trade request, but it doesn't directly decide whether that request is allowed to reach MT5.

There is a separate deterministic execution layer between the agent and the terminal.

That layer checks things like spread, daily loss limits, position limits, stop loss requirements and current account state.

If the request fails one of those checks, it is rejected and the agent is not allowed to just keep retrying it.

At the moment I'm also keeping actual execution human-triggered. The agents can monitor, analyse and reason on their own, but a trade still needs an explicit human request.

I'm only testing this on demo accounts for now.

The rough flow looks like this:

Financial news
→ News Watcher
→ News Analyzer
→ Trader
→ risk/execution layer
→ MetaTrader 5

What I'm curious about is how people here would design the boundary.

Would you keep all risk and execution logic completely deterministic and outside the AI layer?

Would you ever let the agent submit trade proposals automatically if the deterministic layer still has final authority?

And for those of you who have built serious MT5 automation, what checks would you consider absolutely mandatory before allowing an external agent system anywhere near an account?

I'm more interested in architecture and failure modes here than in trading strategy or profitability.

 
Iliya Nedelchev:
Would you keep all risk and execution logic completely deterministic and outside the AI layer?

Yes without a doubt.

Iliya Nedelchev:
Would you ever let the agent submit trade proposals automatically if the deterministic layer still has final authority?

Why not ? That's the right pattern.

Why would anyone let a non deterministic system automatically control a trading account in any way ? 

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