Audience
For MT4 and MT5 EA builders who need the software to stop new entries when daily loss, equity drawdown, or prop-style rule distance gets too close.
EA risk-control guard
Add a daily drawdown guard before an EA can breach the day.
Design a daily drawdown guard for an Expert Advisor by defining broker-day baseline, max daily loss, safety buffer, lockout state, resume rules, and audit logs before testing.
Common missing-guard evidence
MaxDailyLossPct input missing Daily baseline not stored EA keeps trading after -4.7% day No lockout flag after breach No log for equity, balance, limit, or resume time
These are governance and software-control failures. Fix the daily lockout before optimizing entries or presenting a backtest as readiness evidence.
Design a max daily loss lockout
Separate broker-day baseline from entry logic
Log equity, balance, limit, buffer, and resume state
Route opt-in source as drawdown-guard interest
Problem
A strategy branch can keep trading after the account is near a daily loss boundary if the EA treats drawdown as a comment instead of a hard state. The unsafe pattern is calculating signals first and checking daily loss too late or not logging the lockout reason.
Outcome
Workfusionapp keeps the workflow narrow: define the broker-day baseline, calculate current daily loss, add a safety buffer, lock the EA before breach, log the reason, then route the draft into the risk checker.
Support path
One problem, one fix path.
Start with the concrete blocker, keep the full EA context attached, then move to a reviewable output.
1. Define the broker-day baseline
Pick whether the guard uses start-of-day equity or balance, align it to broker server day, and log the baseline once when the day changes.
2. Block before the breach
Calculate current daily loss and apply a safety buffer. When the boundary is too close, set a locked state and reject new entries before signal execution.
3. Make resume rules explicit
The EA should log when it is locked, why it is locked, and when it can resume. Avoid silent resets that make risk review impossible.
Workflow
From vague daily loss rule to one auditable lockout.
The guard is a software control, not a trading edge. It should explain when new entries are blocked and preserve evidence for manual review before any serious test.
Step 1
Paste the EA risk and entry gate
Step 2
Define day start and baseline
Step 3
Add safety-buffer lockout state
Step 4
Retest manually with daily stop logs
Drawdown-guard handoff
Route the daily loss rule into the right risk-control path.
Open the guide that matches the missing control, then run the free desk with the EA risk inputs, account-rule assumptions, day baseline, and latest block logs.
Daily drawdown guard guide
Use this when the EA needs a max daily loss rule, safety buffer, lockout state, or daily reset behavior before testing.
Prop readiness checklist
Use this when drawdown, exposure, cooldown, lot sizing, and tester evidence need to be reviewed together before manual use.
Execution audit trail
Use this when risk blocks, retcodes, account snapshots, and report evidence need a reproducible review trail.
Send me the daily drawdown guard workflow
Opt in only if your MT4 or MT5 EA needs a max daily loss lockout, drawdown buffer, broker-day baseline, lock-state log, or prop-style risk-control review. This captures the drawdown-guard source for conversion measurement.
Intent locked: Get risk check
Choose the workflow you want, then opt in only if you want Workfusionapp updates.
Does a daily drawdown guard make an EA prop-safe?
No. It is one software control. Prop-style readiness still needs spread, exposure, lot sizing, tester evidence, and manual rule review.
Should the guard close trades automatically?
Not by default. This page focuses on blocking new entries and logging risk state. Forced exits need separate design, testing, and owner approval.
Does this require broker credentials?
No. Use EA code, account-rule assumptions, tester or demo logs, and manual account snapshots. Workfusionapp does not need broker login.