Milestone 5 — Immutable human decisions and audit history
LT Tender Trace now records the accountable human decision that follows a validated AI recommendation and preserves a private audit event in the same transaction.
Completed
- Applied two live Supabase migrations for immutable decision reviews and least-privilege history access.
- Limited review submission to active organization owners and analysts. Viewers retain read-only tenant history and cannot submit.
- Stored one final accepted or overridden review per valid successful decision run.
- Required every override to change the proposed Bid, Partner, Monitor, or Decline outcome and include a trimmed nonblank reason.
- Emitted exactly one private append-only audit event for every completed review.
- Exposed a service-only JSON submission RPC; authenticated and anonymous roles cannot execute it.
- Found and removed excess default service-role update, delete, and truncate privileges during live verification.
- Added an accessible chronological activity timeline for safe lifecycle, advisory-decision, and human-review events. It excludes prompts, raw payloads, secrets, chain-of-thought, and free-form model reasoning.
Verified evidence
- Rolled-back live checks covered owner submission, viewer rejection, member read visibility, outsider isolation, invalid-run rejection, duplicate-review rejection, atomic audit emission, RPC permissions, mutation rejection, normalized reasons, browser write denial, and private-event denial.
- The Supabase security advisor reports zero findings. The performance advisor reports no missing foreign-key index.
- Lint, TypeScript checking, 133 automated tests across 24 files, and the Next.js production build pass.
- Verified checkpoint: GitHub commit 3d0480d.
Still pending
Live Gemini execution requires the server API credential. SAM.gov live validation requires its source API key. Google and Microsoft sign-in require provider-console configuration and clean-browser verification. Live run/review query wiring remains. None of these items is represented as complete.
Next milestone
Connect the authenticated review action and activity timeline to live tenant queries, then run a TED notice through both configured Gemini roles and begin the expert-labeled US and EU golden-set evaluation.
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