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Root Cause

Hypothesis Engine

How hypotheses are generated, tested, and ranked. Adjustable, auditable, guardrailed.

Generation policy

Triangulation strength ≥ 0.70 and signal-count growth ≥ 20% w/w.

40%current: 70%100%

20% of matched serials held out for precision/recall stamp.

Loopback never takes a production action without human approval.

Agent tool access

Tools the reasoning agent can invoke.

  • MES.query
    Chennai + EU plant production genealogy
  • Supplier.incoming_inspection
    Lot-level dimensional & material inspection
  • Supplier.ppap
    PPAP records, specs, tolerances
  • PLM.query
    Design change history, spec revisions
  • Telemetry.query
    Home Connect fault codes and signatures
  • Environment.correlate
    Regional climate, water hardness, duty cycle
  • Firmware.replay
    HIL-rig firmware trace replay
  • Holdout.test
    Precision/recall on 20% held-out serials
All tool calls are logged in TrustLayer with latency, cost, and result signatures.