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150ms Delay Now, a Different CLOB Later

GitHub: https://github.com/abrownfox0/abrownfox001-twap60-prediction-trigger-system

YouTube walkthrough: https://www.youtube.com/watch?v=XzhugRL6BV4

Live profile: https://polymarket.com/@abrownfox001

Part 2 said settlement should stay pinned to 60s Chainlink TWAP even if the matching engine is replaced.

Part 3 is the layer that will move: how a taker order gets delayed, accepted, and filled.

1. Two Clocks Are About to Coexist

Clock A — live now

  • crypto taker delay raised to 150ms on Sept 4
  • delay-lock: once pending, cancel is not a free undo
  • volume-tier CLOB rate limits
  • current matching stack still carrying public “tech debt” comments

Clock B — expected later

  • matching engine rewrite in Rust, targeted mid-to-late Q4
  • early vendor/team talk of much faster p99 and much higher order/sec
  • possible new ack / reject / websocket semantics

A 5m bot that treats these as one number will mis-attribute every fill.

2. What 150ms Means for a Mid-Band Engine

@abrownfox001 is not a last-look wick sniper. It still takes in the 45–55¢ band.

150ms still taxes the loop:

  • the book can move after the decision and before the delay expires
  • “scratch now” is not instant
  • fill-minus-signal must be logged separately from TWAP-path error
  • local RTT work hits a ceiling

TWAP60 already killed the last-tick thesis.

The longer taker delay kills the leftover “cancel if the next millisecond disagrees” habit.

3. What a Q4 CLOB Rewrite Could Change

If a new engine lands, expect the distribution of latency to move even if the official delay stays 150ms.

Things that can change without a strategy rewrite:

  • p50 / p99 ack time
  • open-order read lag
  • cancel success rate
  • 429 / reject codes
  • websocket snapshot vs delta behavior
  • how Retry-After is applied

Things that should not change unless rules change:

  • TWAP60 as the paid series
  • 5m slot clock
  • mid-band entry discipline
  • scratch-versus-redeem state machine

If you buried delay assumptions inside signal.ts, the cutover will corrupt the model. Keep delay math in clob.ts / config.

4. Measurements That Survive a Rewrite

Log these on every live slot before Q4:

t_signal
t_submit
t_ack
t_fill
quoted_ask
fill_px
delay_ms_assumed
rate_limit_hits
scratch_spread
twap_open / twap_now
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Then you can answer, after a cutover:

  • Did P(up) get worse?
  • Or did fill quality get worse?
  • Or did RTDS go stale?
  • Or did the new engine change p99 only?

Without that split, every outage becomes “the strategy died.”

5. Rate Limits Are Part of Latency

Volume tiers already punish cancel storms.

A rewrite that raises capacity does not give you permission to spray. It may even expose sloppy loops that the old engine queued into mush.

Keep:

  • idempotent client order ids
  • Retry-After handling
  • per-slot order caps
  • no panic-cancel as risk management

6. What I Am Changing Now vs Later

Now

  • taker_delay_ms = 150 in config
  • separate signal / submit / fill timestamps
  • retune scratch on post-Sept 4 data
  • refuse thin-book “breakeven” fantasies

When a new CLOB is announced live

  • freeze strategy weights
  • swap only the execution adapter
  • paper or micro-size through the first week
  • compare the measurement row above against the August/September baseline

Not now

  • rewriting P(up) because a benchmark slide said 10–20× p99
  • turning the 5m bot into a maker-only book because delay exists

7. What Part 4 Covers

Latency is still a 5m CLOB problem.

Part 4 splits the product surface so Combos, US rails, and builder tooling do not get mixed into that CLOB adapter.

Links

Not financial advice. Delay values and engine rollouts can move — confirm against live docs.

If you have more questions, please feel free to contact me at any time: https://t.me/abrownfox001

My Polymarket Activity: https://polymarket.com/@abrownfox001?tab=activity

#Polymarket #CLOB #TradingBot #BTC #TWAP #AlgoTrading #PredictionMarkets
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