confide:audit — corpus-scale, stats-only PII audit
Measure how much PII lives across a whole folder of sessions, without ever exposing any
of it. The audit runs the layered LOCAL detector stack from shared/confide_core.py
(regex → Natasha → local LLM) over each file and emits only aggregates. This mirrors
the real_session_eval privacy contract: read text only in-process, emit counts.
Privacy invariants (do not violate)
- Local-only. No cloud APIs. Raw transcript text never leaves the machine.
- Stats-only output. The report (markdown + json + optional HTML) contains ONLY counts and rates — never a transcript substring, never a detected PII value.
- No filenames. Per-file rows are keyed by anonymized ids
own-00,own-01, … The original path/name is never written or printed. On an unreadable file, only the index + exception class name is recorded. - Safe to surface. Because it is counts-only, the aggregate report can be shared with a cloud agent or pasted into a chat. The PII stays on the machine.
What it reports
n_files, total / mean / min / max document charsspans_by_type(PERSON, EMAIL, PHONE, DATE, …) andspans_by_layer(regex / natasha / llm)overall_redaction_rateplus the per-session redaction-rate distribution (min / median / mean / max)- a coarse residual proxy: spans still detectable after redaction — ~0 on a clean RED corpus, a leakage signal on a GREEN corpus.
Run it
Point it at a folder (recurses, processes every .md/.txt; skips confide's own
*.green.md / *.stats.json outputs):
python3 skills/audit/scripts/audit.py FOLDER
Options:
--list paths.txt— also/instead audit absolute paths listed one per line.--layers regex,natasha,llm— choose detection layers (default from config). Use--layers regexfor a fully offline, deterministic pass (no models/network).--out report.md— report path; areport.jsonsibling is written alongside.--html— also write a Tufte-ish dashboard (report.html, counts only).
Writes the markdown + json report (and optional HTML) and prints the aggregate summary — all counts only.
RED vs GREEN
- RED (raw) corpus: sizes the PII problem before any redaction.
- GREEN (redacted) corpus: the residual proxy and remaining
spans_by_typetell you whether redaction is holding at scale.
After running
- Report the aggregate summary (file count, span totals by type/layer, redaction-rate distribution, residual proxy) — never paste PII.
- If residual is non-trivial on a GREEN corpus, point the user at confide:anon to re-redact and confide:red to probe re-identification risk.
Setup
Layer availability (Natasha, local LLM via Ollama) comes from config — run
confide:setup if they aren't installed. --layers regex always works offline.