🧠 L1.5 Signal Platform

L1 Truth → L1.5 Signals → L2 Agent → L3 Human

Facts looked normal. Signals detected risk. The agent changed its recommendation. A human signed off. Signals are computed before the agent and fed in as labeled evidence — never raw text.

● live · gemini-2.5 </> source W&B evals
0Raw facts (L1 truth) · trusted warehouse / dbt gold mart
1Signals (L1.5) · each pre-computed + scored vs a benchmark · signal → finding, not algorithm → metric
2Did the signals change the agent? · same Gemini agent — raw facts only vs facts + signals
raw facts only
…
basis: L1 facts, no signals
with L1.5 signals
…
basis: facts + 5 labeled signals
…
3Human decision (L3) · the agent recommends; an accountable person decides
Agent recommendation: —
L1 Truth→ L1.5 Signals→ L2 Agent→ L3 Human accountability