CommunityJev Tools & CLIs
Route Exception Gate
A logistics exception gate that reads carrier codes and free-text driver notes in one scan event and decides whether a shipment needs a human, which exception class it is, and how severe the delay looks.
- Published by
- Community
- Author
- Meridian Logistics
- Last verified
- Oct 2026
- Languages
- Python
- Capabilities
- Open sourceRequires API key
Highlights
- Normalizes carrier codes and driver notes into one exception taxonomy before code branches on it.
- One request carries a Noul escalation flag, a Choice class, and a Score severity so they agree.
- Reports a 141 ms median on a replay of 2,000 historical exceptions, pinned to jev-1.13.0.
- Rerouting, refunds, and carrier calls stay in deterministic code behind the model's verdict.
Watch out
It replaces the long tail of messy exception handling, not a clean code-to-action rule table; the bundled replay is the tool for tuning thresholds before live dispatch.
Questions about this entry
Short answers drawn from the linked project or page.
Jev decides only whether a shipment exception needs a human, which of four exception classes it is, and how severe the delay looks. Rerouting, refunds, and carrier API calls stay in deterministic code behind the verdict.
Carriers use different codes for the same event, and free-text driver notes carry the detail that a code drops. The gate normalizes both into one taxonomy before anything branches on it.
One request carries a Noul escalation flag, a Choice over the exception taxonomy, and a Score for delay severity, all answered against the same scan event so the three agree by construction.
The README targets under 300 ms because the decision sits between a scan event and a dispatch message. It reports a 141 ms median on the sample feed, with the model pinned to jev-1.13.0.
When the exception is already a clean code with one obvious action. The gate is for the long tail of carrier codes and driver prose that rules miss, not a replacement for the deterministic routing you already run.
Python 3.12, a TYPESAFE_API_KEY, and a feed of scan events. A bundled fixture replays 2,000 historical exceptions so the thresholds and taxonomy can be tuned before it touches live dispatch.
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X: Route Exception Gate replays 2,000 carrier exceptions before it touches dispatch.
This post couldn't be loaded here — read it on X.https://x.com/meridianlog/status/2781000000000000001More Jev resources like this
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