# Second-Brain 2.0 (Grundversion) — Runbook

This is the operational quick-reference for the shipped systemd timers/services and the optional FastAPI dashboard backend.

Repository root (on host): `/root/.openclaw/workspace/second-brain`

## Systemd units (cron jobs)

Unit files are shipped in `systemd/` (this repo). Install them into `/etc/systemd/system/` (symlink or copy), then reload:

```bash
sudo ln -sf /root/.openclaw/workspace/second-brain/systemd/openclaw-secondbrain-*.service /etc/systemd/system/
sudo ln -sf /root/.openclaw/workspace/second-brain/systemd/openclaw-secondbrain-*.timer /etc/systemd/system/
sudo ln -sf /root/.openclaw/workspace/second-brain/systemd/openclaw-memory-archive.* /etc/systemd/system/
sudo systemctl daemon-reload
```

Enable timers:

```bash
sudo systemctl enable --now openclaw-secondbrain-ingest-memory.timer
sudo systemctl enable --now openclaw-secondbrain-index-vectors.timer
sudo systemctl enable --now openclaw-secondbrain-review.timer
sudo systemctl enable --now openclaw-secondbrain-backup.timer
sudo systemctl enable --now openclaw-secondbrain-heartbeat.timer
sudo systemctl enable --now openclaw-secondbrain-proactive-search.timer
sudo systemctl enable --now openclaw-memory-archive.timer

# Optional (Obsidian coupling)
sudo systemctl enable --now openclaw-secondbrain-ingest-obsidian.timer
sudo systemctl enable --now openclaw-secondbrain-export-obsidian.timer
```

Verify scheduling:

```bash
sudo systemctl list-timers --all | grep -E 'openclaw-(secondbrain|memory-archive)' || true
```

Run a job once:

```bash
sudo systemctl start openclaw-secondbrain-ingest-memory.service
sudo systemctl status openclaw-secondbrain-ingest-memory.service --no-pager
sudo journalctl -u openclaw-secondbrain-ingest-memory.service -n 200 --no-pager
```

Wrapper logs:

```bash
tail -n 200 /root/.openclaw/workspace/cron_wrapper.log
```

## FastAPI dashboard (manual start)

FastAPI entrypoint:

```bash
cd /root/.openclaw/workspace
python3 -m pip install -r second-brain/requirements-dashboard.txt
SECOND_BRAIN_WORKSPACE="/root/.openclaw/workspace/second-brain" python3 second-brain/fastapi_app.py
```

Default port is `8501` (same as Streamlit default). You can override via `SECOND_BRAIN_PORT` (or `PORT`) when starting manually.

Endpoint smoke tests:

```bash
curl -fsS http://127.0.0.1:8501/api/stats
curl -fsS "http://127.0.0.1:8501/api/engrams?limit=1&offset=0"
curl -fsS "http://127.0.0.1:8501/api/search?q=test&limit=1"
```

## DB quick check

```bash
python3 - <<'PY'
import sqlite3
db="/root/.openclaw/workspace/second-brain/data/brain.sqlite"
con=sqlite3.connect(db)
cur=con.cursor()
print(cur.execute("PRAGMA integrity_check").fetchone()[0])
print("engrams:", cur.execute("SELECT COUNT(*) FROM engrams").fetchone()[0])
con.close()
PY
```