diff --git a/WORK-RECORDS.md b/WORK-RECORDS.md
index 1c83cd9..d702755 100644
--- a/WORK-RECORDS.md
+++ b/WORK-RECORDS.md
@@ -12,6 +12,7 @@
 | workplan | NET-WP-0020 | finished | — | workplans/NET-WP-0020-openbao-unseal-custody-and-ssh-automation.md |
 | workplan | NK-WP-0009 | backlog | — | workplans/NK-WP-0009-netkingdom-security-pattern-tutorials.md |
 | workplan | NK-WP-0011 | backlog | — | workplans/NK-WP-0011-enterprise-federation-saml.md |
+| workplan | NK-WP-0021 | ready | — | workplans/NK-WP-0021-activity-core-ops-sso-operators.md |
 | task | ADHOC-2026-07-02-T01 | done | — | workplans/ADHOC-2026-07-02.md |
 | task | ADHOC-2026-07-02-T02 | done | — | workplans/ADHOC-2026-07-02.md |
 | task | NET-WP-0020-T01 | done | — | workplans/NET-WP-0020-openbao-unseal-custody-and-ssh-automation.md |
@@ -33,5 +34,10 @@
 | task | NK-WP-0011-T6 | todo | — | workplans/NK-WP-0011-enterprise-federation-saml.md |
 | task | NK-WP-0011-T7 | todo | — | workplans/NK-WP-0011-enterprise-federation-saml.md |
 | task | NK-WP-0011-T8 | todo | — | workplans/NK-WP-0011-enterprise-federation-saml.md |
-| intake | NK-IN-0001 | open | blue | docs/intakes/activity-core-ops-sso-operators.md |
-| intake | NK-IN-0002 | open | blue | docs/intakes/activity-core-ops-sso-operators.md |
+| task | NK-WP-0021-T01 | todo | — | workplans/NK-WP-0021-activity-core-ops-sso-operators.md |
+| task | NK-WP-0021-T02 | todo | — | workplans/NK-WP-0021-activity-core-ops-sso-operators.md |
+| task | NK-WP-0021-T03 | todo | — | workplans/NK-WP-0021-activity-core-ops-sso-operators.md |
+| task | NK-WP-0021-T04 | todo | — | workplans/NK-WP-0021-activity-core-ops-sso-operators.md |
+| task | NK-WP-0021-T05 | todo | — | workplans/NK-WP-0021-activity-core-ops-sso-operators.md |
+| intake | NK-IN-0001 | closed | blue | docs/intakes/activity-core-ops-sso-operators.md |
+| intake | NK-IN-0002 | closed | blue | docs/intakes/activity-core-ops-sso-operators.md |
diff --git a/docs/intakes/activity-core-ops-sso-operators.md b/docs/intakes/activity-core-ops-sso-operators.md
index 84d31b5..b3db1a5 100644
--- a/docs/intakes/activity-core-ops-sso-operators.md
+++ b/docs/intakes/activity-core-ops-sso-operators.md
@@ -8,16 +8,12 @@ request least-privilege group gating on the public hosts.
 Source design: `activity-core/docs/ops-sso-access.md`  
 Hosts: `activity.coulomb.social`, `temporal.coulomb.social`
 
-Promote with (after route + owner review):
-
-```bash
-statehub promote-intake <state_hub_intake_id> \
-  --to workplan \
-  --repo-path ~/net-kingdom \
-  --repo-slug net-kingdom \
-  --domain communication
-# or --to task --workplan-file workplans/<existing>.md
-```
+**Promotion (2026-07-22):** both intakes accepted after scope/intent review and
+promoted into **`NK-WP-0021`**
+(`workplans/NK-WP-0021-activity-core-ops-sso-operators.md`). Single workplan
+because LLDAP group and Authelia domain rules share one deploy surface and a
+hard dependency. See that workplan for refined tasks, non-goals, and the
+verification matrix.
 
 ---
 
@@ -28,13 +24,15 @@ id: NK-IN-0001
 kind: intake
 title: "Create LLDAP group activity-core-operators and membership runbook"
 lane: blue
-status: routed
+status: closed
+outcome: promoted
+promoted_to: NK-WP-0021
 priority: high
 owner: net-kingdom
 repo: net-kingdom
 origin: "ACTIVITY-WP-0025-T06"
 origin_ref: "activity-core/workplans/ACTIVITY-WP-0025-ops-ui-sso-access.md"
-routed_note: "Implement in net-kingdom sso-mfa. Origin ACTIVITY-WP-0025-T06 (activity-core)."
+routed_note: "Promoted 2026-07-22 into NK-WP-0021 (T01–T02). Implement in net-kingdom sso-mfa."
 description: |
   activity-core shipped Authelia SSO for the ops console and Temporal UI
   (ACTIVITY-WP-0025). MVP accepts any authenticated Authelia user.
@@ -54,6 +52,7 @@ description: |
 notes: |
   Related Authelia domain rules are NK-IN-0002 (depends on this group existing).
   Requester residual task: ACTIVITY-WP-0025-T06 (status wait).
+  Promoted to NK-WP-0021 (combined workplan with NK-IN-0002).
 state_hub_intake_id: "019f88ff-c5f1-7433-9d13-4ffe37dfef00"
 ```
 
@@ -66,13 +65,15 @@ id: NK-IN-0002
 kind: intake
 title: "Authelia access_control for activity + temporal.coulomb.social"
 lane: blue
-status: routed
+status: closed
+outcome: promoted
+promoted_to: NK-WP-0021
 priority: high
 owner: net-kingdom
 repo: net-kingdom
 origin: "ACTIVITY-WP-0025-T06"
 origin_ref: "activity-core/workplans/ACTIVITY-WP-0025-ops-ui-sso-access.md"
-routed_note: "Depends on NK-IN-0001 group. Implement in Authelia ConfigMap. Origin ACTIVITY-WP-0025-T06."
+routed_note: "Promoted 2026-07-22 into NK-WP-0021 (T03–T04). Depends on NK-IN-0001 group."
 description: |
   Restrict browser access to activity-core public SSO hosts to members of
   LLDAP group `activity-core-operators` (see NK-IN-0001).
@@ -104,5 +105,6 @@ notes: |
   Depends on NK-IN-0001 (group must exist). activity-core Ingress + middleware
   already applied (k8s/railiance/30–32). No activity-core code change required
   for group enforcement — headers already carry Remote-Groups.
+  Promoted to NK-WP-0021 (combined workplan with NK-IN-0001).
 state_hub_intake_id: "019f88ff-cc9e-76b4-8ce3-eb354aabefe7"
 ```
diff --git a/sso-mfa/k8s/authelia/README.md b/sso-mfa/k8s/authelia/README.md
index 317bad1..83f154a 100644
--- a/sso-mfa/k8s/authelia/README.md
+++ b/sso-mfa/k8s/authelia/README.md
@@ -44,6 +44,36 @@ Key config points:
 - `identity_providers.oidc.clients[0].redirect_uris` — must match CP-NK-004 (`kc.coulomb.social`)
 - `session.domain` — set to parent domain `coulomb.social` so cookies are valid across
   both `auth.coulomb.social` and `kc.coulomb.social`
+- `access_control.default_policy: one_factor` — fleet default; MFA is not Authelia’s job
+- `access_control.rules` — domain allowlists by LLDAP group (see below)
+
+### Domain rules (app operator groups)
+
+Authelia evaluates `rules` top-down; **first match wins**. A rule that matches
+`domain` but not `subject` is skipped, so non-members would fall through to
+`default_policy` and stay allowed unless a later domain-only `deny` rule exists.
+
+Pattern used for activity-core public hosts (NK-WP-0021):
+
+```yaml
+access_control:
+  default_policy: one_factor
+  rules:
+    - domain: app.example.com
+      subject: "group:app-operators"
+      policy: one_factor
+    - domain: app.example.com
+      policy: deny
+```
+
+| Host | Required LLDAP group |
+|------|----------------------|
+| `activity.coulomb.social` | `activity-core-operators` |
+| `temporal.coulomb.social` | `activity-core-operators` |
+
+Membership: `sso-mfa/k8s/lldap/OPERATOR-GROUPS.md`. Do **not** set `two_factor`
+on these rules. Do **not** invent KeyCape OIDC clients for Traefik ForwardAuth
+apps — the edge already calls Authelia `/api/verify`.
 
 ## Secrets managed
 
diff --git a/sso-mfa/k8s/authelia/configmap.yaml b/sso-mfa/k8s/authelia/configmap.yaml
index 25949d2..f0fe4a4 100644
--- a/sso-mfa/k8s/authelia/configmap.yaml
+++ b/sso-mfa/k8s/authelia/configmap.yaml
@@ -86,8 +86,26 @@ data:
     # ── Access control ────────────────────────────────────────────────────────
     # one_factor = password only. MFA is handled by KeyCape + privacyIDEA.
     # Do NOT change to two_factor here.
+    #
+    # Domain rules (NK-WP-0021): first matching rule wins. For restricted hosts
+    # put the group allow rule first, then a domain-wide deny so non-members do
+    # not fall through to default_policy (which would re-open the host).
+    # MFA stays KeyCape/privacyIDEA — policy remains one_factor, never two_factor.
     access_control:
       default_policy: one_factor
+      rules:
+        # activity-core ops console (ForwardAuth; no KeyCape OIDC client)
+        - domain: activity.coulomb.social
+          subject: "group:activity-core-operators"
+          policy: one_factor
+        - domain: activity.coulomb.social
+          policy: deny
+        # Temporal Web UI (same operator group)
+        - domain: temporal.coulomb.social
+          subject: "group:activity-core-operators"
+          policy: one_factor
+        - domain: temporal.coulomb.social
+          policy: deny
 
     # ── OIDC identity provider ────────────────────────────────────────────────
     # Authelia acts as an upstream OIDC provider for KeyCape.
diff --git a/sso-mfa/k8s/lldap/OPERATOR-GROUPS.md b/sso-mfa/k8s/lldap/OPERATOR-GROUPS.md
new file mode 100644
index 0000000..68f6c5f
--- /dev/null
+++ b/sso-mfa/k8s/lldap/OPERATOR-GROUPS.md
@@ -0,0 +1,83 @@
+# Operator groups — membership runbook
+
+Least-privilege **app-scoped** LLDAP groups that gate browser SSO via Authelia
+domain rules. Distinct from platform groups (`net-kingdom-users` /
+`net-kingdom-admins`).
+
+## Groups
+
+| Group | Gates (Authelia) | Who belongs |
+|-------|------------------|-------------|
+| `activity-core-operators` | `activity.coulomb.social`, `temporal.coulomb.social` | Named founders / platform operators who need the activity-core ops console or Temporal UI |
+
+**Do not** auto-add everyone in `net-kingdom-admins`. Membership is a conscious
+grant. Platform admin ≠ activity-core operator.
+
+Seed empty groups with `./bootstrap-users.sh` (idempotent). Authelia config:
+`sso-mfa/k8s/authelia/configmap.yaml` (`access_control.rules`).
+
+## WebUI path
+
+1. Open https://lldap.coulomb.social (IP-restricted admin UI).
+2. Sign in as `admin` (password from KeePassXC / custody — never commit it).
+3. **Groups** → `activity-core-operators` → add or remove members.
+4. User must already exist (create via WebUI or `./create-user.sh`).
+5. User re-authenticates at Authelia if an old session lacks the group claim
+   (sign out / new browser session).
+
+## Scripted path
+
+```bash
+cd sso-mfa/k8s/lldap
+
+# Add a user to the operator group
+./manage-group-members.sh add <uid> activity-core-operators
+
+# Remove
+./manage-group-members.sh remove <uid> activity-core-operators
+
+# List members
+./manage-group-members.sh list activity-core-operators
+```
+
+Defaults: LLDAP URL `https://lldap.coulomb.social`, secrets from
+`../../bootstrap/secrets/lldap/secrets.env`. Override:
+
+```bash
+./manage-group-members.sh add bernd activity-core-operators \
+  https://lldap.coulomb.social /path/to/secrets
+```
+
+Live ops without a local secrets file: export `LLDAP_ADMIN_PASS` from the
+cluster secret (operator workstation only; do not log or commit):
+
+```bash
+export LLDAP_ADMIN_PASS="$(kubectl get secret -n sso lldap-secrets \
+  -o jsonpath='{.data.LLDAP_LDAP_USER_PASS}' | base64 -d)"
+# manage-group-members.sh also accepts LLDAP_ADMIN_PASS when secrets.env is absent
+```
+
+## Onboarding checklist (activity-core ops)
+
+1. User has LLDAP account and is in `net-kingdom-users` (normal onboarding).
+2. Operator adds them to `activity-core-operators` (WebUI or script).
+3. User signs in at https://auth.coulomb.social (password; MFA via KeyCape path
+   when using OIDC apps — ForwardAuth to ops hosts uses Authelia session).
+4. Open https://activity.coulomb.social and https://temporal.coulomb.social —
+   both should pass only for group members.
+5. Offboard: remove from `activity-core-operators` first; full account offboard
+   remains the platform lifecycle path.
+
+## Break-glass (independent of this group)
+
+activity-core ClusterIP port-forward + `ACTIVITY_CORE_OPERATOR_TOKEN` does **not**
+use Authelia groups. Documented in activity-core runbooks. Keep that path for
+SSO outages; do not gate break-glass on LLDAP group membership.
+
+## Adding a future app-operator group
+
+1. Add the group name to `REQUIRED_GROUPS` in `bootstrap-users.sh`.
+2. Document it in this table.
+3. Add Authelia domain rules (member `one_factor` + domain `deny` fallback) in
+   `sso-mfa/k8s/authelia/configmap.yaml` — see Authelia README.
+4. Never invent a KeyCape OIDC client solely for Traefik ForwardAuth apps.
diff --git a/sso-mfa/k8s/lldap/README.md b/sso-mfa/k8s/lldap/README.md
index 10b18f6..d734b02 100644
--- a/sso-mfa/k8s/lldap/README.md
+++ b/sso-mfa/k8s/lldap/README.md
@@ -33,7 +33,14 @@ kubectl rollout status deployment/lldap -n sso --timeout=120s
 
 ## Post-deploy bootstrap
 
-After the pod is Running, create the two required application groups via the web UI:
+After the pod is Running, seed required groups (preferred — idempotent):
+
+```bash
+./bootstrap-users.sh
+# Groups: net-kingdom-users, net-kingdom-admins, activity-core-operators
+```
+
+Or create them via the web UI:
 
 ```
 https://lldap.coulomb.social
@@ -41,9 +48,13 @@ Username: admin
 Password: LLDAP_LDAP_USER_PASS (from KeePassXC → net-kingdom/LLDAP/admin)
 ```
 
-Create groups:
-- `net-kingdom-users` — standard users
-- `net-kingdom-admins` — privileged users (enforce MFA step-up in KeyCape policies)
+| Group | Purpose |
+|-------|---------|
+| `net-kingdom-users` | Standard users (all human accounts) |
+| `net-kingdom-admins` | Privileged users (KeyCape MFA step-up / extra scopes) |
+| `activity-core-operators` | App-scoped: browser SSO to activity-core ops + Temporal UI (Authelia domain rules). **Not** platform admin — grant consciously. |
+
+Operator membership (add/remove humans): see **[OPERATOR-GROUPS.md](./OPERATOR-GROUPS.md)**.
 
 ## Ports
 
diff --git a/sso-mfa/k8s/lldap/bootstrap-users.sh b/sso-mfa/k8s/lldap/bootstrap-users.sh
index 97a2dcb..d09e9ae 100755
--- a/sso-mfa/k8s/lldap/bootstrap-users.sh
+++ b/sso-mfa/k8s/lldap/bootstrap-users.sh
@@ -5,14 +5,17 @@
 #
 # What it does:
 #   1. Authenticates to LLDAP via its GraphQL API.
-#   2. Creates the two required groups: net-kingdom-users, net-kingdom-admins.
+#   2. Creates required platform + app-operator groups (idempotent).
 #   3. Prints a user onboarding checklist (groups-only; individual users are
-#      added via the WebUI or by re-running this script with USER_EMAIL set).
+#      added via the WebUI, create-user.sh, or manage-group-members.sh).
 #
 # Groups created:
-#   net-kingdom-users    — standard users; all human accounts go here.
-#   net-kingdom-admins   — privileged users; KeyCape policies can enforce
-#                          MFA step-up or grant extra scopes to this group.
+#   net-kingdom-users         — standard users; all human accounts go here.
+#   net-kingdom-admins        — privileged users; KeyCape policies can enforce
+#                               MFA step-up or grant extra scopes to this group.
+#   activity-core-operators   — app-scoped: browser access to activity-core
+#                               ops console + Temporal UI (Authelia domain rules).
+#                               Not platform admin — grant consciously (NK-WP-0021).
 #
 # Usage:
 #   ./bootstrap-users.sh [lldap-url] [secrets-dir]
@@ -120,15 +123,22 @@ create_group() {
 }
 
 # ── 2. Create required groups ─────────────────────────────────────────────────
-create_group "net-kingdom-users"
-create_group "net-kingdom-admins"
+REQUIRED_GROUPS=(
+    "net-kingdom-users"
+    "net-kingdom-admins"
+    "activity-core-operators"
+)
+
+for grp in "${REQUIRED_GROUPS[@]}"; do
+    create_group "$grp"
+done
 
 # ── 3. Verify ─────────────────────────────────────────────────────────────────
 echo ""
 echo "Verifying groups ..."
 LIST_RESP=$(gql 'query { groups { id displayName } }')
 if [[ "$LIST_RESP" != "CURL_FAILED" ]]; then
-    for grp in "net-kingdom-users" "net-kingdom-admins"; do
+    for grp in "${REQUIRED_GROUPS[@]}"; do
         EXISTS=$(echo "$LIST_RESP" | python3 -c \
             "import sys,json; d=json.load(sys.stdin); print('yes' if any(g['displayName']=='$grp' for g in d.get('data',{}).get('groups',[])) else 'no')" \
             2>/dev/null || echo "no")
@@ -148,7 +158,8 @@ echo "════════════════════════
 echo "  LLDAP group bootstrap: PASS=$PASS_COUNT  FAIL=$FAIL_COUNT"
 echo "════════════════════════════════════════════════════════════"
 echo ""
-echo "Next: add users via the LLDAP WebUI or LDAP provisioning."
+echo "Next: add users via the LLDAP WebUI, create-user.sh, or manage-group-members.sh."
+echo "App-operator membership: see OPERATOR-GROUPS.md (do not auto-grant all admins)."
 echo ""
 echo "User onboarding checklist:"
 echo ""
@@ -157,9 +168,11 @@ echo "    1. Create account in LLDAP WebUI ($LLDAP_URL)"
 echo "       Fields: username (uid), display name, email"
 echo "    2. Assign to net-kingdom-users group (mandatory)"
 echo "       Assign to net-kingdom-admins too if privileged access is needed"
-echo "    3. User logs in to Authelia (auth.coulomb.social) to verify their password"
-echo "    4. User self-enrolls TOTP at pink-account.coulomb.social"
-echo "    5. User tests end-to-end login via an OIDC-protected application"
+echo "    3. For activity-core ops/Temporal UI: also add to activity-core-operators"
+echo "       (./manage-group-members.sh add <uid> activity-core-operators)"
+echo "    4. User logs in to Authelia (auth.coulomb.social) to verify their password"
+echo "    5. User self-enrolls TOTP at pink-account.coulomb.social"
+echo "    6. User tests end-to-end login via an OIDC-protected application"
 echo ""
 echo "  Break-glass account:"
 echo "    Run: sso-mfa/k8s/lldap/break-glass.sh"
diff --git a/sso-mfa/k8s/lldap/create-secrets.sh b/sso-mfa/k8s/lldap/create-secrets.sh
index 46d0b71..132a5e0 100644
--- a/sso-mfa/k8s/lldap/create-secrets.sh
+++ b/sso-mfa/k8s/lldap/create-secrets.sh
@@ -51,7 +51,7 @@ echo "Done. Secret lldap-secrets created in namespace: sso"
 echo ""
 echo "Next:"
 echo "  Apply manifests (see README.md apply order)."
-echo "  After LLDAP is Running, create application groups:"
-echo "    - Log in to https://lldap.coulomb.social with the admin account."
-echo "    - Create group: net-kingdom-users"
-echo "    - Create group: net-kingdom-admins"
+echo "  After LLDAP is Running, seed groups:"
+echo "    ./bootstrap-users.sh"
+echo "    Groups: net-kingdom-users, net-kingdom-admins, activity-core-operators"
+echo "    Membership runbook: OPERATOR-GROUPS.md"
diff --git a/sso-mfa/k8s/lldap/manage-group-members.sh b/sso-mfa/k8s/lldap/manage-group-members.sh
new file mode 100755
index 0000000..7abf5bd
--- /dev/null
+++ b/sso-mfa/k8s/lldap/manage-group-members.sh
@@ -0,0 +1,179 @@
+#!/usr/bin/env bash
+# manage-group-members.sh — add/remove/list LLDAP group membership (NK-WP-0021)
+#
+# Usage:
+#   ./manage-group-members.sh add    <uid> <group> [lldap-url] [secrets-dir]
+#   ./manage-group-members.sh remove <uid> <group> [lldap-url] [secrets-dir]
+#   ./manage-group-members.sh list   <group>       [lldap-url] [secrets-dir]
+#
+# Auth: LLDAP_LDAP_USER_PASS from secrets-dir/lldap/secrets.env, or env
+# LLDAP_ADMIN_PASS (e.g. from kubectl secret for live ops).
+#
+# Examples:
+#   ./manage-group-members.sh add bernd activity-core-operators
+#   ./manage-group-members.sh list activity-core-operators
+
+set -euo pipefail
+
+ACTION="${1:-}"
+shift || true
+
+LLDAP_URL="https://lldap.coulomb.social"
+SECRETS_DIR="../../bootstrap/secrets"
+
+usage() {
+    sed -n '2,15p' "$0" | sed 's/^# \?//'
+    exit 1
+}
+
+case "$ACTION" in
+    add|remove)
+        USERNAME="${1:-}"
+        GROUP_NAME="${2:-}"
+        [[ -z "$USERNAME" || -z "$GROUP_NAME" ]] && usage
+        shift 2 || true
+        ;;
+    list)
+        GROUP_NAME="${1:-}"
+        [[ -z "$GROUP_NAME" ]] && usage
+        shift 1 || true
+        USERNAME=""
+        ;;
+    *)
+        usage
+        ;;
+esac
+
+[[ -n "${1:-}" ]] && LLDAP_URL="$1"
+[[ -n "${2:-}" ]] && SECRETS_DIR="$2"
+
+LLDAP_ENV="$SECRETS_DIR/lldap/secrets.env"
+LLDAP_ADMIN_PASS="${LLDAP_ADMIN_PASS:-}"
+
+if [[ -z "$LLDAP_ADMIN_PASS" ]]; then
+    if [[ ! -f "$LLDAP_ENV" ]]; then
+        echo "ERROR: $LLDAP_ENV not found and LLDAP_ADMIN_PASS unset." >&2
+        exit 1
+    fi
+    LLDAP_ADMIN_PASS=$(bash -c "source '$LLDAP_ENV' 2>/dev/null; echo \"\${LLDAP_LDAP_USER_PASS:-}\"")
+fi
+
+if [[ -z "$LLDAP_ADMIN_PASS" ]]; then
+    echo "ERROR: empty LLDAP admin password" >&2
+    exit 1
+fi
+
+echo "Authenticating to LLDAP at $LLDAP_URL ..."
+AUTH_RESP=$(curl -sS -X POST "$LLDAP_URL/auth/simple/login" \
+    -H "Content-Type: application/json" \
+    -d "{\"username\":\"admin\",\"password\":\"$LLDAP_ADMIN_PASS\"}")
+
+LLDAP_TOKEN=$(echo "$AUTH_RESP" | python3 -c \
+    "import sys,json; print(json.load(sys.stdin).get('token',''))" 2>/dev/null || echo "")
+if [[ -z "$LLDAP_TOKEN" ]]; then
+    echo "ERROR: Authentication failed" >&2
+    exit 1
+fi
+
+# Build GraphQL POST body without shell-expanding $variables inside the query.
+gql_post() {
+    local query_file="$1"
+    local vars_json="$2"
+    python3 - "$LLDAP_URL" "$LLDAP_TOKEN" "$query_file" "$vars_json" <<'PY'
+import json, sys, urllib.request
+url, token, qpath, vars_s = sys.argv[1:5]
+query = open(qpath, encoding="utf-8").read()
+body = json.dumps({"query": query, "variables": json.loads(vars_s)}).encode()
+req = urllib.request.Request(
+    url.rstrip("/") + "/api/graphql",
+    data=body,
+    headers={
+        "Authorization": f"Bearer {token}",
+        "Content-Type": "application/json",
+    },
+    method="POST",
+)
+with urllib.request.urlopen(req, timeout=30) as resp:
+    print(resp.read().decode())
+PY
+}
+
+TMPDIR_GQL=$(mktemp -d)
+trap 'rm -rf "$TMPDIR_GQL"' EXIT
+
+cat >"$TMPDIR_GQL/list.gql" <<'EOF'
+query { groups { id displayName users { id displayName email } } }
+EOF
+
+GROUPS_JSON=$(gql_post "$TMPDIR_GQL/list.gql" '{}')
+GROUP_ID=$(echo "$GROUPS_JSON" | python3 -c "
+import sys, json
+name = sys.argv[1]
+d = json.load(sys.stdin)
+for g in d.get('data', {}).get('groups', []) or []:
+    if g.get('displayName') == name:
+        print(g['id'])
+        break
+" "$GROUP_NAME")
+
+if [[ -z "$GROUP_ID" ]]; then
+    echo "ERROR: group '$GROUP_NAME' not found — run bootstrap-users.sh first" >&2
+    exit 1
+fi
+
+case "$ACTION" in
+    list)
+        echo "$GROUPS_JSON" | python3 -c "
+import sys, json
+name = sys.argv[1]
+d = json.load(sys.stdin)
+for g in d.get('data', {}).get('groups', []) or []:
+    if g.get('displayName') == name:
+        users = g.get('users') or []
+        print(f\"Group {name} (id={g.get('id')}): {len(users)} member(s)\")
+        for u in users:
+            print(f\"  - {u.get('id')}  {u.get('displayName') or ''}  {u.get('email') or ''}\")
+        break
+" "$GROUP_NAME"
+        ;;
+    add)
+        cat >"$TMPDIR_GQL/add.gql" <<'EOF'
+mutation AddToGroup($userId: String!, $groupId: Int!) {
+  addUserToGroup(userId: $userId, groupId: $groupId) { ok }
+}
+EOF
+        VARS=$(python3 -c "import json,sys; print(json.dumps({'userId':sys.argv[1],'groupId':int(sys.argv[2])}))" "$USERNAME" "$GROUP_ID")
+        RESP=$(gql_post "$TMPDIR_GQL/add.gql" "$VARS")
+        echo "$RESP" | python3 -c "
+import sys, json
+d = json.load(sys.stdin)
+if d.get('errors'):
+    msg = d['errors'][0].get('message', str(d['errors']))
+    if 'UNIQUE constraint' in msg or 'already' in msg.lower():
+        print('OK: already a member (no-op)')
+        sys.exit(0)
+    print('ERROR:', msg, file=sys.stderr)
+    sys.exit(1)
+print('OK: added user to group')
+"
+        echo "  user=$USERNAME group=$GROUP_NAME (id=$GROUP_ID)"
+        ;;
+    remove)
+        cat >"$TMPDIR_GQL/remove.gql" <<'EOF'
+mutation RemoveFromGroup($userId: String!, $groupId: Int!) {
+  removeUserFromGroup(userId: $userId, groupId: $groupId) { ok }
+}
+EOF
+        VARS=$(python3 -c "import json,sys; print(json.dumps({'userId':sys.argv[1],'groupId':int(sys.argv[2])}))" "$USERNAME" "$GROUP_ID")
+        RESP=$(gql_post "$TMPDIR_GQL/remove.gql" "$VARS")
+        echo "$RESP" | python3 -c "
+import sys, json
+d = json.load(sys.stdin)
+if d.get('errors'):
+    print('ERROR:', d['errors'][0].get('message', d['errors']), file=sys.stderr)
+    sys.exit(1)
+print('OK: removed user from group')
+"
+        echo "  user=$USERNAME group=$GROUP_NAME (id=$GROUP_ID)"
+        ;;
+esac
diff --git a/workplans/NK-WP-0021-activity-core-ops-sso-operators.md b/workplans/NK-WP-0021-activity-core-ops-sso-operators.md
new file mode 100644
index 0000000..e066d10
--- /dev/null
+++ b/workplans/NK-WP-0021-activity-core-ops-sso-operators.md
@@ -0,0 +1,286 @@
+---
+id: NK-WP-0021
+type: workplan
+title: "Activity-core ops/Temporal UI least-privilege SSO"
+domain: infotech
+repo: net-kingdom
+status: finished
+owner: codex
+topic_slug: netkingdom
+priority: high
+created: "2026-07-22"
+updated: "2026-07-22"
+origin: "intake:019f88ff-c5f1-7433-9d13-4ffe37dfef00+019f88ff-cc9e-76b4-8ce3-eb354aabefe7"
+origin_ref: "ACTIVITY-WP-0025-T06"
+state_hub_workstream_id: "3e40e29a-a13a-47b6-9575-4fdc7024af6a"
+---
+
+# NK-WP-0021 — Activity-core ops/Temporal UI least-privilege SSO
+
+## Goal
+
+Close the residual least-privilege gap for public activity-core operator UIs
+by owning the **directory group** and **Authelia access rules** in this repo
+(SSO/MFA stack). Browser access to `activity.coulomb.social` and
+`temporal.coulomb.social` should require membership in
+`activity-core-operators`, not merely “any authenticated Authelia user”.
+
+## Origin and review
+
+| Intake | Hub UUID | Title | Decision |
+| --- | --- | --- | --- |
+| NK-IN-0001 | `019f88ff-c5f1-7433-9d13-4ffe37dfef00` | LLDAP group + membership runbook | **Accept** → T01–T02 |
+| NK-IN-0002 | `019f88ff-cc9e-76b4-8ce3-eb354aabefe7` | Authelia domain rules | **Accept** → T03–T04 |
+
+Cross-repo handoff from activity-core `ACTIVITY-WP-0025-T06` (residual wait).
+Source design: `activity-core/docs/ops-sso-access.md`. File intakes:
+`docs/intakes/activity-core-ops-sso-operators.md`.
+
+### Scope / intent fit
+
+| Lens | Assessment |
+| --- | --- |
+| **SCOPE in** | SSO/MFA platform (Authelia + LLDAP), identity as control plane, least-privilege access for platform operators |
+| **SCOPE out** | activity-core Ingress/middleware (already live), KeyCape OIDC clients, Temporal/API application code, railiance runtime |
+| **INTENT** | Principle 2 (identity is the control plane) and 6 (minimize exposure / least privilege from the start). Progressive capability: tighten MVP “any Authelia user” to named operator group without changing auth edge pattern |
+| **Repo boundary** | net-kingdom owns LLDAP groups + Authelia `access_control`; activity-core owns ForwardAuth middleware, break-glass token, and app authorization |
+
+### Refinements vs raw intakes
+
+1. **Single workplan** — both intakes share one deploy surface (LLDAP → Authelia) and a hard dependency (group must exist before domain rules). One plan avoids split status and double-apply risk.
+2. **No KeyCape / Keycloak OIDC clients** — explicit non-goal. Path is Traefik ForwardAuth → Authelia `/api/verify` only (already shipped in activity-core).
+3. **MFA posture unchanged** — keep Authelia `one_factor`; MFA remains KeyCape + privacyIDEA. Do not set Authelia `two_factor` for these hosts.
+4. **App-scoped operator group pattern** — `activity-core-operators` extends the existing `net-kingdom-users` / `net-kingdom-admins` seed style for a *consumer app*, not platform-wide admin. Document as the template for future app operator groups.
+5. **Membership is operator policy** — scripts create the empty group and document add/remove; named founder assignment is a live operator step (not committed identity).
+6. **Verification matrix** — unauthenticated → login; authenticated non-member → deny; member → pass; break-glass remains independent of Authelia groups (activity-core runbook).
+7. **Default policy stays open for other hosts** — only the two public activity-core hosts get restrictive domain rules; do not change global `default_policy: one_factor` for the rest of the fleet without a separate decision.
+
+## Context (current state)
+
+- Authelia SSO edge for both hosts is **live** (activity-core manifests 30–32).
+- Authelia `access_control` today: `default_policy: one_factor`, **no** domain rules
+  (`sso-mfa/k8s/authelia/configmap.yaml`).
+- LLDAP bootstrap seeds only `net-kingdom-users` and `net-kingdom-admins`
+  (`sso-mfa/k8s/lldap/bootstrap-users.sh`).
+- Any authenticated Authelia user can currently open both public UIs.
+
+## In scope
+
+- Create LLDAP group `activity-core-operators` (bootstrap script + README).
+- Document how operators add/remove humans (WebUI + scripted GraphQL path).
+- Authelia domain rules for `activity.coulomb.social` and
+  `temporal.coulomb.social` requiring that group.
+- Apply/reload Authelia; verify member / non-member / unauthenticated paths.
+- Close intakes as promoted; notify activity-core so T06 can finish.
+
+## Out of scope
+
+- New OIDC clients in KeyCape or Keycloak for these hosts.
+- Changing activity-core Ingress, middleware, or ops API authorization.
+- Platform-root / break-glass LLDAP accounts.
+- Enterprise federation / SAML (NK-WP-0011) or tutorials backlog (NK-WP-0009).
+- Automatically granting named users without operator confirmation.
+
+## Acceptance (workplan-level)
+
+- [x] Group `activity-core-operators` exists in LLDAP and is re-seeded by bootstrap.
+- [x] Membership procedure is documented under `sso-mfa` docs (and README pointers).
+- [x] Authelia denies non-members and allows members on both hosts after login
+      (`authelia access-control check-policy` on live config 2026-07-22).
+- [x] Unauthenticated users still hit the Authelia login portal (not open backends)
+      (live 302 → `auth.coulomb.social` for both hosts).
+- [x] activity-core break-glass remains independent of Authelia group membership
+      (unchanged; documented in OPERATOR-GROUPS.md).
+- [x] Intakes NK-IN-0001 / NK-IN-0002 closed as promoted to this workplan.
+
+### Live verification evidence (2026-07-22)
+
+| Check | Result |
+| --- | --- |
+| LLDAP group `activity-core-operators` | id=7; seeded live; bootstrap script updated |
+| Initial member | `platform-root` (conscious bootstrap grant) |
+| Unauth `activity` / `temporal` | HTTP 302 → Authelia login |
+| `check-policy` member + group | rule #1 `one_factor` (activity); rule #3 temporal |
+| `check-policy` auth non-member | rule #2 / #4 `deny` |
+| `check-policy` other host (`kc`) | default `one_factor` (fleet unaffected) |
+| Authelia rollout | v4.38.19 Startup complete with rules loaded |
+
+---
+
+## Tasks
+
+### T01 — LLDAP group `activity-core-operators` in bootstrap
+
+```task
+id: NK-WP-0021-T01
+status: done
+priority: high
+state_hub_task_id: "50d59099-d3df-4087-93ef-9a4e537807b8"
+```
+
+Extend LLDAP group seeding so the operator group is created the same way as
+platform groups:
+
+- Update `sso-mfa/k8s/lldap/bootstrap-users.sh` to create
+  `activity-core-operators` (idempotent `create_group`).
+- Update `sso-mfa/k8s/lldap/README.md` and post-deploy hints in
+  `create-secrets.sh` to list the third group and its purpose
+  (activity-core ops console + Temporal UI only — not platform admin).
+- Optional small helper or flag on `create-user.sh` only if it stays simple
+  (e.g. documented GraphQL one-liner is enough for v1).
+
+**Done when:** re-running bootstrap is safe/idempotent and the group exists
+(or will exist on next bootstrap) with clear docs.
+
+**Promotes:** NK-IN-0001 (group half).
+
+---
+
+### T02 — Operator membership runbook
+
+```task
+id: NK-WP-0021-T02
+status: done
+priority: high
+state_hub_task_id: "e8d6dae5-257f-4862-98de-ab4cef6cc722"
+```
+
+Document least-privilege membership for founders/operators only:
+
+- WebUI path: `https://lldap.coulomb.social` → add/remove group members.
+- Scripted path: GraphQL `addUserToGroup` / `removeUserFromGroup` using the
+  same auth pattern as `bootstrap-users.sh` / `break-glass.sh` (no secrets in
+  git or workplan).
+- Explicit: do **not** auto-add all `net-kingdom-admins`; membership is a
+  conscious grant for activity-core ops.
+- Point activity-core operators at this runbook from a short note in
+  `docs/intakes/activity-core-ops-sso-operators.md` (or a thin
+  `sso-mfa/k8s/lldap/OPERATOR-GROUPS.md` if the README grows too large).
+
+**Done when:** an operator can add and remove a test user without reading
+activity-core internals.
+
+**Promotes:** NK-IN-0001 (runbook half).
+
+---
+
+### T03 — Authelia domain rules for activity + temporal hosts
+
+```task
+id: NK-WP-0021-T03
+status: done
+priority: high
+state_hub_task_id: "71bfd7ea-1637-4c1a-ac3b-dc8dca38b82f"
+```
+
+Implement access control in the live Authelia ConfigMap:
+
+- File: `sso-mfa/k8s/authelia/configmap.yaml`
+- Keep `default_policy: one_factor` for the rest of the fleet.
+- Add `rules` (or equivalent for the deployed Authelia version) for:
+  - `activity.coulomb.social`
+  - `temporal.coulomb.social`
+- Require subject group `activity-core-operators` with policy `one_factor`
+  (Authelia subject syntax: `subject: "group:activity-core-operators"` —
+  confirm against the running Authelia major version before apply).
+- Comment in-file: MFA remains KeyCape/privacyIDEA; do not use Authelia
+  `two_factor` here.
+- Update `sso-mfa/k8s/authelia/README.md` with the new domain-rule pattern so
+  the next app can copy it.
+
+**Depends on:** T01 (group name must resolve from LLDAP via Authelia’s LDAP
+backend). Rules may be committed before the group exists, but live apply of
+enforcement should wait until the group is present.
+
+**Done when:** config is reviewed and ready to apply; no accidental lockdown
+of unrelated hosts (auth portal, KeyCape, LLDAP admin, etc.).
+
+**Promotes:** NK-IN-0002 (config half).
+
+---
+
+### T04 — Live apply and verification matrix
+
+```task
+id: NK-WP-0021-T04
+status: done
+priority: high
+state_hub_task_id: "f74a2a59-f126-45e3-832a-5574bd0feb6f"
+```
+
+Roll out and prove least privilege on the live railiance01 SSO stack:
+
+1. Ensure group exists (run bootstrap if needed) and assign **one** known
+   operator (operator-confirmed username).
+2. Apply Authelia ConfigMap; restart/reload Authelia in namespace `sso`.
+3. Verification matrix (record non-secret results in progress notes):
+
+   | Case | Expected |
+   | --- | --- |
+   | Unauthenticated → both hosts | Redirect to Authelia login |
+   | Authenticated **non-member** | Denied (403 / Authelia unauthorized) |
+   | Authenticated **member** | Pass-through to ops UI and Temporal UI |
+   | Break-glass port-forward + operator token | Still works per activity-core runbook |
+
+4. If verification fails, roll back ConfigMap to previous `access_control`
+   and re-open the blocking task — do not leave partial rules that lock out
+   all operators without a recovery path.
+
+**Done when:** matrix passes for both hosts; recovery path still documented.
+
+**Promotes:** NK-IN-0002 (verify half).
+
+---
+
+### T05 — Close loop with intakes and activity-core
+
+```task
+id: NK-WP-0021-T05
+status: done
+priority: medium
+state_hub_task_id: "a1acd507-9532-45ea-bb08-387b11a96868"
+```
+
+- Keep intake source file statuses in sync (`promoted` / closed) after hub
+  close (done at workplan registration for the intake close step; re-check
+  if reopened).
+- Message `activity-core` (State Hub) that NK-WP-0021 covers residual T06 and
+  can move T06 to done once T04 verification lands.
+- Brief progress event on finish.
+
+**Done when:** activity-core residual task has a clear unblock path and this
+workplan’s hub registration is consistent.
+
+**2026-07-22:** Intakes closed promoted; activity-core notified at registration
+and again on finish. Residual ACTIVITY-WP-0025-T06 unblocked.
+
+---
+
+## Implementation notes
+
+### Suggested Authelia rule shape (confirm version)
+
+```yaml
+access_control:
+  default_policy: one_factor
+  rules:
+    - domain: activity.coulomb.social
+      subject: "group:activity-core-operators"
+      policy: one_factor
+    - domain: temporal.coulomb.social
+      subject: "group:activity-core-operators"
+      policy: one_factor
+```
+
+If Authelia requires an explicit deny for non-matching subjects on those
+domains, use the version’s documented pattern (subject rules are exclusive
+when matched; default_policy must not re-open the host). Prefer a
+deny-by-default domain rule only if the running version needs it — verify
+in staging or with a short maintenance window.
+
+### Non-goals reminder
+
+Do **not** invent KeyCape OIDC clients, oauth2-proxy, or Keycloak realm
+clients for this path. activity-core already uses ForwardAuth headers
+(`Remote-User`, `Remote-Groups`, …).
+)