# seo-signal-validation — code environment notes

## Helper: scripts/gsc_signal_delta.py
Deterministic L1/L4 GSC delta. Feed it two saved GSC query exports (recent,
prior) as JSON or TSV (columns: query, clicks, impressions, position).

```bash
python3 scripts/gsc_signal_delta.py \
  --recent recent.tsv --prior prior.tsv \
  --recent-days 28 --prior-days 30 --claim-term "호텔"
```
Returns day-normalized site totals, top gainers/decliners, and a `verdict_hint`
(heuristic only — the final verdict is the skill's job, after L2/L3).

## Getting the exports
`mcp__dda__gsc_fetch_performance` (property pinned per workspace, e.g. JHR
`sc-domain:josunhotel.com`) → save the query-dimension rows to a file → run the
script. GSC anonymizes ~43% of query clicks; the disclosed subset ≠ the whole.

## Env / access
- `GOOGLE_KG_API_KEY` for `mcp__ourseo__search_knowledge_graph` (L3).
- GSC/GA4 only exist for first-party properties — third-party entities skip L1.
- Never crawl/audit Marriott for JHR (sameAs only).