Two skins, one engine: an OEM white-label and a customer-direct view of the same tree. Rules are rendered as sentences a governance lead can sign, every change is simulated against real traffic before it activates, and nothing edits live state directly. The console below is live, switch tabs, toggle a rule, cycle a matrix cell, search the task classes, and watch the draft tray fill.
studio.heimdall.3verest.com/nhs-trust-xInteractive preview · synthetic data
POLICY v12 · LIVE · SOV-LHRv13 DRAFT · 0 CHANGES
Overview
LAST 24H · ALL POOLS
One customer, one pane. Everything here is read from the same ledger your customer sees, that symmetry is the product.
Requests · 24h
21,627
93.8% sovereign · 5.8% resident · 0.4% human
Cost MTD vs budget
£41,208
68% of envelope · tracking under
Blended p95 · single-shot
1.61 s
cache hit 51.2% across classes
Drift flags · this week
3
2,104 outputs sampled · 0 version changes
Start here
The two surfaces that define this tenant.
POLICIES · 14 RULES
Plain-language rules across 5 domains, plus the residency matrix. 2 locked regulatory baselines, 3 customer overrides of your OEM base policy.
TASK CLASSES · 11 DEFINED
9 live, 1 paused, 1 draft. Per-class envelopes, pinned models, pricing shape, and 30-day underwriting variance, searchable and editable.
Policies
NHS TRUST X · v12 LIVE · 14 RULES · 5 DOMAINS
Policy you can read. Each rule is the enforcement logic, rendered as the sentence the customer's IG lead signs. OEM BASE rules ship with your product; OVERRIDE rules are this customer's departures. Toggle anything unlocked and it becomes a v13 draft, nothing changes until simulation and dual sign-off.
VERSION HISTORY
v13, draft
you · 2 changes pending
v12, live
11 Mar 2026 · dual-signed
v11
28 Jan 2026 · RES tier enabled
v10
02 Dec 2025 · go-live baseline
Data residency & sovereignty · 4 RULES + MATRIX
identifiable data never leaves SOVEREIGN-UK infrastructure.
LOCKED · UK GDPR / NHS DSPT baseline · cannot be disabled in any draft
LOCKEDOEM BASE
de-identified tasks may use RESIDENT-UK frontier capacity, always via the de-identification gate.
Re-ID map held sovereign · enabled 11 Mar 2026 · signed Okafor / Whelan
RESIDENTOVERRIDE
pseudonymised payloads may transit RESIDENT-UK for priors.synthesise.* classes only.
Class-scoped grant · all other classes remain sovereign-only for this data class
SCOPEDOVERRIDE
synthetic workloads may use OPEN pools where economics dominate.
Disabled, Trust X declined the Open tier at onboarding. One toggle to draft.
OFFOEM BASE
Sovereign-UK
Resident-UK
Open
identifiable
pseudonymised
de-identified
synthetic
Click any unlocked cell to cycle ALLOWED → VIA GATE → BLOCKED in the draft. The top row is statute, not preference, it does not cycle.
Model governance · 3 RULES
Model changes for any task class require an eval-suite pass ≥ 98.5% and dual sign-off before serving traffic.
LOCKED BY OEM · applies equally to SOV and RES pools · Clinical Safety + Information Governance
LOCKEDOEM BASE
Sovereign models are pinned for the life of product certification; rollback versions are held warm.
3v-rad-32b@2.3.1 pinned since 14 Feb 2026 · rollback 2.2.4 warm in LHR
ACTIVEOEM BASE
Resident-pool deprecations raise an alert at ≥ 6 months horizon and a staged migration plan within 30 days.
claude-frontier UK horizon: 11 months · migration plan filed 02 Jun 2026
ACTIVEOEM BASE
Escalation & human oversight · 3 RULES
priors.synthesise.oncology escalates to the consultant queue below confidence 0.80.
12% of volume escalated last 30 days · every case enriches the eval bank
HUMAN TAILOVERRIDE
qa.discrepancy-check escalates below confidence 0.75, and always when a discrepancy is found.
4.1% escalated last 30 days · found-discrepancy rate 1.4%
HUMAN TAILOEM BASE
1.5% of routine outputs are sampled weekly and scored against the governance rubric.
This week: 2,104 sampled · 3 flags · rubric mean 4.6 / 5.0 · trend stable
ACTIVEOEM BASE
Economic controls · 2 RULES
Per-class budgets are hard caps; breaches queue rather than spend.
Soft alert at 80% · hard stop at 100% · CFO digest every Monday 07:00
ACTIVEOEM BASE
Batch-eligible classes run in the overnight trough (23:00 to 06:00 local) at deferred priority.
Ledger entries are retained 8 years, immutable, in-jurisdiction.
LOCKED · NHS records-management alignment · exceeds EU AI Act minimums
LOCKEDOEM BASE
The customer holds full read access to their own ledger and evidence packs, at all times.
Both parties read the same rows, that is what makes the contract honest
ACTIVEOEM BASE
Task classes
11 DEFINED · 9 LIVE · 1 PAUSED · 1 DRAFT
A task class is a unit of clinical work with a policy, a model, an envelope, and a price. Search, filter, and expand any row, envelope steppers create v13 draft changes, never live edits.
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Model registry
TRUST X ALLOWLIST · 4 SERVING · 1 IN EVAL
You select clinically; Heimdall enforces and supplies. Pinning is absolute on owned weights, managed on resident pools, and the registry says which is which, out loud.
3v-rad-32b @ 2.3.1PINNED · SOV
Radiology-tuned · owned weights · Bifrost LHR Eval: 412-case suite · 98.7% · 14 Feb 2026 Pin term: life of product certification Rollback: 2.2.4 held warm
SERVES 5 CLASSES
claude-frontier · UKRESIDENT
Frontier reasoning · in-country deployment Eval: oncology-synthesis suite · 99.1% Deprecation watch: horizon 11 months Migration: staged, behind the same eval gate
SERVES 2 CLASSES
3v-rad-32b @ 2.4.0IN EVAL
Candidate · improved priors handling Suite progress: 251 / 412 · 0 regressions If passed: enters approvals, never auto-serves