Community · E2 · artifact verified

Triage industrial faults from live telemetry

Fault triage for an industrial compressed-air unit with Jev: live telemetry in, classified alerts and tickets out, every judgment grounded in the unit's own service manual - read-only by design, with an eval harness that replays recorded decision cassettes.

01 · Role in the system

What Jev does here

Telemetry from the compressor streams into typed questions whose criteria come from the machine's manual, so a fault call is not vibes but a grounded reading: which fault class, how severe, what the ticket should say. The system is read-only by design - it classifies and drafts, it never actuates - and the eval side is built like a lab: decision cassettes with a JSON schema record judge answers so regressions replay deterministically, TypeScript tests cover the harness, and SPDX headers mark the whole thing CC-BY-4.0. Industrial OT meets a System One judge that only looks.

02 · Control boundary

Where Jev sits

Jev as the fault classifier for industrial telemetry: manual-grounded criteria judge live readings into alert classes and ticket drafts, the system stays read-only, and recorded cassettes make judge behavior replayable in CI.

Code owns the loop, permissions, thresholds, validation, and side effects. Jev owns only the bounded judgments described above.

03 · Known limits

What this evidence does not prove

  • PoC scoped to one compressed-air unit and its manual; other equipment needs new criteria.
  • 1 star; no field deployment or accuracy study against human technicians.
  • Read-only by design - it informs tickets, it does not touch the machine.

04 · Attribution

Public sources

This is a Community record: the project was published by a third-party community author.