Back to Blog
March 10, 20262 min readZeroMS Team

Visual Execution Flows: No More Config Files

Design complex routing logic with drag-and-drop. A/B-Book, split blocks, AI scoring, and more — all without touching a config file.

FeaturesExecution

The old way: config files and guesswork

Legacy bridges configure execution logic through text-based configuration files. Want to change your routing? Edit a config, restart the service, hope it works.

This approach is:

  • Error-prone — one wrong parameter and orders fail
  • Opaque — hard to visualize the actual flow
  • Slow to iterate — every change requires a restart
  • Hard to audit — who changed what and when?

The ZeroMS way: visual flow builder

Our execution flow builder lets you design routing logic visually. Drag blocks onto a canvas, connect them, and your flow is live — no restarts, no config files.

Available blocks

The flow builder includes a comprehensive set of blocks:

  • A-Book — route to a specific LP or best available
  • B-Book — internalize the trade
  • Split — divide volume by percentage across multiple routes
  • Rules — conditional routing based on symbol, volume, account, or security type
  • AI Score — route based on the trader's ML risk score
  • Delay — add configurable execution delay
  • Last Look — price variation check before execution
  • Rate Limit — control trade frequency per account/symbol

How it works

  1. Open the flow editor in the ZeroMS portal
  2. Drag blocks from the palette onto the canvas
  3. Connect blocks to define the execution path
  4. Configure each block's parameters
  5. Save — changes apply immediately, no restart needed

Example: hybrid A/B-Book with AI

Here's a common setup:

  1. Order enters the flow
  2. AI Score block checks the trader's risk score
  3. Score > 70 → A-Book to best LP with last look
  4. Score 30-70 → Split 50/50 between A-Book and B-Book
  5. Score < 30 → B-Book with rate limiting

This entire flow takes minutes to set up and can be modified on the fly.

Why it matters

Visual flows aren't just about convenience. They make your execution strategy:

  • Auditable — every flow is versioned and logged
  • Shareable — show your risk team exactly how orders are routed
  • Testable — simulate flows before going live
  • Fast to iterate — experiment with different strategies in real-time

Ready to build your first execution flow? Book a demo and we'll walk you through it.