Second-pass cybersec classifier using DeBERTa-v3-base-mnli (already
cached — no download required). Runs after each anomaly scoring pass on
entries flagged by the anomaly scorer or with pattern matches.
Architecture:
- app/services/cybersec.py: zero-shot-classification pipeline with 5
cybersec candidate labels (auth failure, privilege escalation, network
intrusion, malware, data exfiltration). Writes ml_score/ml_label/
ml_scored_at to log_entries; inserts high-confidence hits into
detections with scorer='cybersec'.
- app/tasks/cybersec_scorer.py: async background task (same shape as
anomaly_scorer.py).
- REST: GET/POST /turnstone/api/cybersec/status|run|detections.
GET /turnstone/api/anomaly/detections now accepts scorer= filter.
Schema: ml_score, ml_label, ml_scored_at added to log_entries; scorer
column added to detections (idempotent migrations + DDL for both SQLite
and Postgres).
UI: Security Alerts view gains Source dropdown (All / Anomaly / Cybersec)
and cybersec scorer status badge. Label dropdown split into optgroups.
Deployment: TURNSTONE_CYBERSEC_MODEL/DEVICE/THRESHOLD vars added to
.env.example, docker-compose.yml, docker-standalone.sh.
Tests: 10 new tests — no model, no eligible entries, scoring, detection
creation, normal label suppression, threshold filtering, pattern-tag
filtering, idempotency, list filtering, scorer column filter.
416/416 passing.
Closes: #9
Add TURNSTONE_ANOMALY_* env vars to docker-compose.yml, docker-standalone.sh,
and .env.example. Mount shared HF model cache (/Library/Assets/LLM on Heimdall)
as read-only bind in both compose and standalone — avoids re-downloading models
that are already cached by the diagnose pipeline.
Heimdall: byviz/bylastic_classification_logs already cached, threshold 0.80,
glean-triggered only (TURNSTONE_ANOMALY_INTERVAL=0).
Makes the HuggingFace classifier model for Stage 2 configurable via
TURNSTONE_CLASSIFIER_MODEL. When unset (default), Stage 2 falls back
to pattern_tags then regex — no download required on first run.
Also documents TURNSTONE_MULTI_AGENT_DIAGNOSE, TURNSTONE_CLASSIFIER_MODEL,
TURNSTONE_EMBED_BACKEND/MODEL/DEVICE in .env.example.
