Frequently asked questions

Shield captures the email traffic on your construction projects, runs an AI classifier over every message, and flags commercial-risk signals as they happen — variations, verbal instructions, delays, time-bars, pay-when-paid clauses, programme impacts. It builds a evidence-locked timeline so that if a project goes to dispute, you can hand a solicitor one PDF and the evidence is already there.

The classifier uses Anthropic's Claude Haiku model with a tool-use schema (so output is structurally enforced server-side, never malformed), keyword pre-detection (deterministic priors before AI runs), and self-consistency voting (three parallel runs on critical and high severity, majority wins). Every classification carries a confidence note. We grade output against a 12-case eval corpus and are growing it to 50+ real anonymised emails. AI output is labelled "AI-generated — not legal advice" everywhere it appears.

No. Anthropic, our AI provider, does not use API inputs to train their models. Your email content is processed for classification only and discarded by Anthropic after the response is returned. The classified output is stored in your Shield account database; the original email is evidence-locked and stored unchanged.

All application data lives in the UK on Fly.io (London region) and Supabase managed Postgres. We are a UK-registered company and the Information Commissioner's Office (ICO) is our supervisory authority. Full third-party processor list is in our privacy policy.

Every inbound email gets a SHA-256 hash computed at the moment of capture and the raw Postmark payload is stored unchanged in a separate JSONB column. AI classifications are stored in their own columns — they overlay, they never edit. Audit logs are append-only. Dispute pack exports include the original hash and an integrity statement explaining the chain of custody so a third party can verify nothing was modified between capture and export.

Your data is yours. You can export everything in JSON format from your account settings at any time. If you close your account, your data is retained for 90 days in case you change your mind or want to export it; after that it's permanently deleted.