Both the MLL floor and the books-invariant fund detector assumed a $0
starting balance (correct for Express, wrong for funded/eval sizes). A
150K account (accountSize 150000) built its balance curve from $0, so
the floor came out near -$4,500 and a $145k balance never crossed it —
the account never marked dead — while reconcileFunds saw the whole
$150k as an unexplained deposit. Seed both with accountSize so the floor
is an absolute balance (150K/$4,500 drawdown → 145,500, locked at the
funded size once the EOD high climbs a drawdown above it) and the books
invariant nets out the starting balance. Skip reconcile until the
account type is known, since the start balance is unknowable before then.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The MLL floor no longer recomputes while a position is open or while
the balance disagrees with the books beyond fee noise — the last
settled floor stands, so balance ≤ floor can only come true when a
booked fill crosses a settled floor (Topstep's own liquidation fill
included). The floor also survives canTrade flipping off, so a blown
account stays ☠ instead of demoting to inactive.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
TopstepX never reports the Maximum Loss Limit, but it's deterministic:
floor = min(0, eodBalanceHigh − trailingDrawdown), locking at the $0
starting balance. The EOD curve rebuilds from daily P&L + fund events,
with off-book fee drift spread across days proportionally to reported
fees (validated against a platform-reported MLL to ~$0.10). Stored in
autoLiqThresholds — negative, or +$0.01 once locked — so dead detection,
dashboards, and the ruin model's startThreshold all use the real room.
Guards move from '> 0' to '!== 0'; 0 still means no floor. canTrade=false
accounts are skipped. daily_pnl gains a fees column for the weighting.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@microsoft/signalr does an unconditional require('ws')/require('eventsource')
when constructing a connection; bundled (turbopack) builds throw 'dynamic
usage of require is not supported', which the login chain mislabelled as a
login failure and retried every 60s. Externalize the package and never let
hub setup fail the login — REST polling covers everything the hub does.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- TopstepXClient (ProjectX Gateway): API-key auth, SignalR user hub,
Trade/search daily P&L, emulated OCO exits, books-invariant
withdrawal detection for $0-start accounts
- Platform-aware client pool, credentials (api_key column), and
credential form; $0-size account types match by prefix alone
- Drain stages: min-day ($5-$15 randomized) MNQ legs for the
configured days, then wait for the 50% withdrawal; stage pills
show 'Stage N – Drain'
- Account calendar projects the perfect path: future days book their
planned targets, simulated 50% withdrawals, payout marker
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
