diff --git a/.repo-classification.yaml b/.repo-classification.yaml
new file mode 100644
index 0000000..d5a5941
--- /dev/null
+++ b/.repo-classification.yaml
@@ -0,0 +1,23 @@
+repo_classification:
+  standard: Repo Classification Standard
+  version: "1.0"
+  classified_at: "2026-08-14"
+  classified_by: agent
+  category: project
+  domain: financials
+  secondary_domains:
+    - infotech
+  capability_tags:
+    - platform
+    - operations
+    - storage
+    - governance
+  business_stake:
+    - technology
+    - operations
+  business_mechanics:
+    - coordination
+    - operation
+  repo_family: reef
+  ownership_repo: railiance-platform
+  substrate_kind: object-storage
diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..d6283bb
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,17 @@
+# reef-storage — Agent Instructions
+
+## Repo Identity
+
+**Purpose:** Provider-delegated S3-compatible storage substrate. Owns
+non-secret operating attributes. Does not host a rail.
+
+**Domain:** financials  
+**Repo slug:** reef-storage  
+**Workplan prefix:** `REEF-STORAGE-WP-`
+
+## Standing rules
+
+- No rail. Scaleway (or a successor provider) operates S3.
+- No secrets in this repo. Cite `secret:railiance-platform/<id>`.
+- Attribute files are the source for `reef:storage/…#key` references.
+- Do not fold this substrate into `reef-railiance`.
diff --git a/INTENT.md b/INTENT.md
new file mode 100644
index 0000000..d6ac90e
--- /dev/null
+++ b/INTENT.md
@@ -0,0 +1,31 @@
+# INTENT
+
+## Why This Repo Exists
+
+`reef-storage` is the substrate boundary for **provider-delegated
+S3-compatible object storage**. The first instance is Scaleway, used for
+postgres backup and other large, slow-tolerant volumes.
+
+We consume the S3 capability. We do **not** host a rail and we do **not**
+operate how Scaleway provides or runs object storage. This reef names the
+boundary, holds the committed non-secret attributes, and is the place
+operators look for “where is our object store?”
+
+It is a different reef from `reef-railiance`. Backup is not bolted onto
+the home compute substrate.
+
+## What This Repo Must Protect
+
+- the split: procure/cost in `resource-control`, operate-by-reference here,
+  secrets in `railiance-platform`, consume in `rapp-*`
+- no rail invented to satisfy a compute-centric schema
+- no secret material in git
+- independent failure domain from Host Europe / `reef-railiance`
+
+## What This Repo Is Not
+
+- a Scaleway account manager or billing ledger
+- a Barman/CNPG operator (`rapp-postgres`)
+- a secret store
+- a generic S3 client library
+- an extension of `reef-railiance`
diff --git a/README.md b/README.md
index 60e7492..9a73d78 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,12 @@
 # reef-storage
 
-Low cost data secure storage. Runtime independent S3 compatible storage facility for backup and large volume storage that can tolerate rather slow access. 
\ No newline at end of file
+Low-cost, data-secure, runtime-independent **S3-compatible** storage
+substrate for backup and large volumes that can tolerate slow access.
+
+Scaleway provides the S3 capability. This reef does **not** host a rail
+and does not operate the object store. It names the boundary and holds
+non-secret attributes.
+
+- Declaration: `declarations/reef.yaml`
+- Attributes: `substrate/object-stores/`
+- Join: `reef:storage/<path>#<key>` from `resource-control` 
\ No newline at end of file
diff --git a/SCOPE.md b/SCOPE.md
new file mode 100644
index 0000000..90a9642
--- /dev/null
+++ b/SCOPE.md
@@ -0,0 +1,29 @@
+# SCOPE
+
+## One-liner
+
+Provider-delegated S3-compatible storage reef: identity and non-secret
+attributes, not a rail, not a secret store.
+
+## In Scope
+
+- Reef declaration (`substrate_kind: object-storage`, no rail)
+- Committed non-secret object-store attributes (endpoint, region, bucket,
+  prefix, versioning/lifecycle flags, provider project ref)
+- Runbooks for “how we use the delegated store,” not how Scaleway runs it
+- Binding notes for consumers (`rapp-postgres` first)
+
+## Out of Scope
+
+- Purchase approval, forecasts, settlement (`resource-control`)
+- Access keys and OpenBao delivery (`railiance-platform`)
+- WAL archive, backup schedule, restore (`rapp-postgres`)
+- Hosting Kubernetes or any rail
+- Implementing S3
+
+## Getting Oriented
+
+- Declaration: `declarations/reef.yaml`
+- Attribute contract: `schemas/object-store-attributes.schema.json`
+- Attribute files: `substrate/object-stores/`
+- Join convention: `resource-control/docs/operational-reference-convention.md`
diff --git a/bindings/consumers.yaml b/bindings/consumers.yaml
new file mode 100644
index 0000000..bb525b7
--- /dev/null
+++ b/bindings/consumers.yaml
@@ -0,0 +1,19 @@
+reef_id: reef-storage
+consumers_potential:
+  - consumer_id: rapp-postgres
+    resource_id: resource:platform:audit-storage
+    purpose: WAL archive and physical base backups for platform-pg
+    readiness_state: declared
+    evidence:
+      - repo: resource-control
+        path: workplans/RESOURCE-WP-0002-procure-postgres-backup-storage.md
+consumers_actual:
+  - consumer_id: rapp-postgres
+    resource_id: resource:platform:audit-storage
+    readiness_state: wal-archiving
+    evidence:
+      - repo: resource-control
+        path: docs/evidence/RESOURCE-WP-0002-T05-restore-2026-08-14.md
+notes:
+  - Actual consumer is recorded only after WAL flows (RESOURCE-WP-0002-T05).
+  - rapp-postgres consumes a reviewed destination; it does not procure the bucket.
diff --git a/declarations/reef.yaml b/declarations/reef.yaml
new file mode 100644
index 0000000..5827590
--- /dev/null
+++ b/declarations/reef.yaml
@@ -0,0 +1,21 @@
+kind: substrate-reef
+reef_id: reef-storage
+repo: reef-storage
+ownership_repo: railiance-platform
+substrate_kind: object-storage
+lifecycle_state: planned
+criticality: high
+current_members:
+  - railiance-platform-pg-backup
+source_documents:
+  - repo: railiance-master
+    path: docs/reef-substrate-model.md
+  - repo: railiance-master
+    path: workplans/RMASTER-WP-0022-establish-reef-storage.md
+  - repo: resource-control
+    path: docs/operational-reference-convention.md
+compatibility_notes:
+  - "S3-compatible capability is delegated to Scaleway. This reef does not host a rail and does not operate the object store internals."
+  - "Non-secret attributes (endpoint, bucket, region, prefix, lifecycle) live under substrate/object-stores/."
+  - "Credentials live in railiance-platform OpenBao. resource-control cites reef: and secret: references only."
+  - "This substrate is independent of reef-railiance. Backup is not provided on the home compute reef."
diff --git a/docs/post-purchase-seed.md b/docs/post-purchase-seed.md
new file mode 100644
index 0000000..759058d
--- /dev/null
+++ b/docs/post-purchase-seed.md
@@ -0,0 +1,25 @@
+# Fill reef-storage after Scaleway purchase
+
+Run only after human financial authority approves
+`resource-control/docs/evidence/RESOURCE-WP-0002-primary-selection-2026-08-14.md`.
+
+1. Create a Scaleway project on the Railiance (or GmbH) paying account.
+2. Create a **private** bucket in `nl-ams`, Standard Multi-AZ.
+3. Enable versioning. Set lifecycle to the 30-day recovery window.
+4. Create a key that can only list/get/put/delete on that bucket/prefix.
+5. Turn on a project cost alert.
+6. Write the non-secret facts into
+   `substrate/object-stores/platform-audit-storage.yaml`:
+   `endpoint`, `bucket`, `prefix`, `provider_project_ref`, `versioning`,
+   `lifecycle`. Status → `active`.
+7. Append the bucket/project to `declarations/reef.yaml` `current_members`
+   and `substrate/topology.yaml` `members`. Reef `lifecycle_state` may stay
+   `planned` until the first restore (T05), or become `active` when the
+   bucket exists — prefer `active` only after T05.
+8. Hand `secret:railiance-platform/backup` to OpenBao (T04).
+   Do not commit the key.
+9. Tell resource-control: set inventory `decision.status: approved`,
+   `status: ordered`, `ordered_on`, `provider.provider_resource_id`.
+
+Do not paste endpoint or keys into chat as the source of truth. The YAML
+file is the source for `reef:storage/…` references.
diff --git a/docs/put-scaleway-bootstrap.md b/docs/put-scaleway-bootstrap.md
new file mode 100644
index 0000000..f7badd1
--- /dev/null
+++ b/docs/put-scaleway-bootstrap.md
@@ -0,0 +1,37 @@
+# Put the Scaleway bootstrap key (founder, local only)
+
+Do this on a trusted terminal. **Do not paste ACCESS_KEY or SECRET_KEY
+into chat, Git, or State Hub.**
+
+CCR: `railiance-platform/credential-change-requests/CCR-2026-0011-scaleway-object-storage-bootstrap.yaml`  
+Path: `platform/workloads/railiance/scaleway/bootstrap`
+
+1. In [console.scaleway.com](https://console.scaleway.com) create or reuse
+   the Railiance (or GmbH) project. IAM → API keys: create a key that can
+   create Object Storage buckets in that project. Copy org id and project id
+   from the project dashboard (those two are not as sensitive as the secret
+   key, but still keep them out of git).
+2. On this host, with a token that can write the `platform` mount:
+
+```bash
+bao kv put platform/workloads/railiance/scaleway/bootstrap \
+  ACCESS_KEY='SCWxxxxxxxx' \
+  SECRET_KEY='xxxxxxxx' \
+  DEFAULT_ORGANIZATION_ID='xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' \
+  DEFAULT_PROJECT_ID='xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
+```
+
+3. Confirm **without printing values**:
+
+```bash
+bao kv metadata get platform/workloads/railiance/scaleway/bootstrap
+```
+
+You should see a current version. Then tell the agent “bootstrap is in
+OpenBao.” They will run `tools/create-platform-audit-bucket.sh`, which
+creates the private Multi-AZ bucket, 30-day lifecycle, and writes only
+endpoint/bucket/region into `substrate/object-stores/platform-audit-storage.yaml`.
+
+The scoped backup key is a **different** path
+(`platform/workloads/railiance/backup/object-storage`) and is T04.
+After the scoped key works, delete or lock down this bootstrap key.
diff --git a/schemas/object-store-attributes.schema.json b/schemas/object-store-attributes.schema.json
new file mode 100644
index 0000000..728a4d0
--- /dev/null
+++ b/schemas/object-store-attributes.schema.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://railiance.dev/reef-storage/object-store-attributes.schema.json",
+  "title": "Non-secret object-store attributes",
+  "type": "object",
+  "additionalProperties": false,
+  "required": ["schema_version", "resource_id", "provider", "status"],
+  "properties": {
+    "schema_version": {"const": "0.1"},
+    "resource_id": {"type": "string", "pattern": "^resource:"},
+    "provider": {"type": "string", "minLength": 1},
+    "product": {"type": ["string", "null"]},
+    "status": {"enum": ["planned", "active", "retired"]},
+    "endpoint": {"type": ["string", "null"]},
+    "region": {"type": ["string", "null"]},
+    "bucket": {"type": ["string", "null"]},
+    "prefix": {"type": ["string", "null"]},
+    "versioning": {"type": ["boolean", "null"]},
+    "lifecycle": {"type": ["string", "null"]},
+    "provider_project_ref": {"type": ["string", "null"]},
+    "intended": {"type": ["object", "null"]},
+    "notes": {"type": "array", "items": {"type": "string"}}
+  }
+}
diff --git a/substrate/identity.yaml b/substrate/identity.yaml
new file mode 100644
index 0000000..a9571e5
--- /dev/null
+++ b/substrate/identity.yaml
@@ -0,0 +1,15 @@
+reef_id: reef-storage
+display_name: Railiance delegated object storage
+substrate_kind: object-storage
+ownership_repo: railiance-platform
+lifecycle_state: planned
+criticality: high
+primary_rail: null
+current_members:
+  - railiance-platform-pg-backup
+current_role: Provider-delegated S3-compatible store. Scaleway operates the capability; this reef names the boundary and non-secret attributes.
+source_of_truth:
+  repo: reef-storage
+  paths:
+    - declarations/reef.yaml
+    - substrate/object-stores/platform-audit-storage.yaml
diff --git a/substrate/object-stores/platform-audit-storage.yaml b/substrate/object-stores/platform-audit-storage.yaml
new file mode 100644
index 0000000..50ef4fb
--- /dev/null
+++ b/substrate/object-stores/platform-audit-storage.yaml
@@ -0,0 +1,25 @@
+# Live attributes for RESOURCE-WP-0002. No secrets in this file.
+schema_version: "0.1"
+resource_id: resource:platform:audit-storage
+provider: Scaleway
+product: standard-multi-az
+status: active
+endpoint: https://s3.nl-ams.scw.cloud
+region: nl-ams
+bucket: railiance-platform-pg-backup
+prefix: platform-pg/
+versioning: true
+lifecycle: 30-day current and noncurrent expiration
+provider_project_ref: e1a0dd0e-04b8-4ea9-8b30-d53f8c35c688
+intended:
+  public_access: disabled
+  versioning: true
+  lifecycle: 30-day recovery window matching data/demand/platform-audit-storage.json
+  encryption_at_rest: provider-managed
+  identity: bucket-and-prefix scoped key only
+notes:
+  - Destination for rapp-postgres WAL and base backups once procured.
+  - resource-control cites reef:storage/substrate/object-stores/platform-audit-storage.yaml#<key>
+  - "Decision record: resource-control/docs/evidence/RESOURCE-WP-0002-primary-selection-2026-08-14.md"
+  - Created 2026-08-14. Versioning enabled. ACL owner-only FULL_CONTROL.
+  - Cost backstop is a founder email billing alert. Scaleway has no euro hard-stop.
diff --git a/substrate/topology.yaml b/substrate/topology.yaml
new file mode 100644
index 0000000..7b6d936
--- /dev/null
+++ b/substrate/topology.yaml
@@ -0,0 +1,21 @@
+reef_id: reef-storage
+membership_policy: Add a member when a purchased object-store (bucket/project) is live. Members are provider resources, not hosts.
+members:
+  - member_id: platform-audit-storage
+    role: primary-backup-object-store
+    provider: Scaleway
+    product: standard-multi-az
+    region: nl-ams
+    bucket: railiance-platform-pg-backup
+    resource_id: resource:platform:audit-storage
+    status: live
+    evidence:
+      - repo: resource-control
+        path: docs/evidence/RESOURCE-WP-0002-primary-selection-2026-08-14.md
+      - path: substrate/object-stores/platform-audit-storage.yaml
+intended_members: []
+access_surfaces:
+  - type: s3-https
+    note: Endpoint and bucket live in substrate/object-stores/platform-audit-storage.yaml. No rail.
+unresolved_questions:
+  - Whether Host Europe Backup Storage or Nextcloud is the T06 second copy
diff --git a/tools/apply-backup-bucket-policy.sh b/tools/apply-backup-bucket-policy.sh
new file mode 100755
index 0000000..58c7337
--- /dev/null
+++ b/tools/apply-backup-bucket-policy.sh
@@ -0,0 +1,165 @@
+#!/usr/bin/env bash
+# Apply a prefix-scoped bucket policy for the resource-control backup key.
+# Reads APPLICATION_ID from OpenBao. Never prints secret values.
+# Uses the bootstrap key to PutBucketPolicy (org owner can always edit policies).
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+BAO_ADDR="${BAO_ADDR:-${VAULT_ADDR:-https://bao.coulomb.social}}"
+REGION="nl-ams"
+BUCKET="${BUCKET:-railiance-platform-pg-backup}"
+PREFIX="${PREFIX:-platform-pg/}"
+
+need() { command -v "$1" >/dev/null || { echo "missing $1" >&2; exit 2; }; }
+export PATH="${HOME}/.local/bin:${PATH}"
+need python3
+need curl
+
+TOKEN="${OPENBAO_TOKEN:-${VAULT_TOKEN:-}}"
+if [[ -z "$TOKEN" && -f "$HOME/.vault-token" ]]; then
+  TOKEN="$(cat "$HOME/.vault-token")"
+fi
+[[ -n "$TOKEN" ]] || { echo "no OpenBao token" >&2; exit 2; }
+
+read_kv() {
+  local path="$1"
+  curl -fsS -H "X-Vault-Token: $TOKEN" \
+    "$BAO_ADDR/v1/platform/data/${path#platform/}" \
+    | python3 -c 'import json,sys; d=json.load(sys.stdin); print(json.dumps(d["data"]["data"]))'
+}
+
+BACKUP_JSON="$(read_kv workloads/railiance/backup/object-storage)"
+BOOTSTRAP_JSON="$(read_kv workloads/railiance/scaleway/bootstrap)"
+
+EXPORTS="$(
+BACKUP_JSON="$BACKUP_JSON" BOOTSTRAP_JSON="$BOOTSTRAP_JSON" python3 - <<'PY'
+import json, os, sys, re
+backup = json.loads(os.environ["BACKUP_JSON"])
+boot = json.loads(os.environ["BOOTSTRAP_JSON"])
+app = (backup.get("APPLICATION_ID") or "").strip()
+if not app or app in {"xxx", "redacted", "changeme"}:
+    sys.stderr.write(
+        "APPLICATION_ID missing on platform/workloads/railiance/backup/object-storage\n"
+        "Founder: add that field in the OpenBao UI (IAM application resource-control UUID).\n"
+        "It is not a secret. Then re-run this script.\n"
+    )
+    sys.exit(6)
+if not re.fullmatch(r"[0-9a-fA-F-]{36}", app):
+    sys.stderr.write("APPLICATION_ID is not a 36-char UUID\n")
+    sys.exit(7)
+def g(data, *ks):
+    for k in ks:
+        if data.get(k):
+            return data[k]
+    return ""
+print("export APPLICATION_ID=" + json.dumps(app))
+print("export SCW_ACCESS_KEY=" + json.dumps(g(boot, "ACCESS_KEY")))
+print("export SCW_SECRET_KEY=" + json.dumps(g(boot, "SECRET_KEY")))
+print("export BACKUP_ACCESS_KEY=" + json.dumps(g(backup, "ACCESS_KEY", "ACCESS_KEY_ID")))
+print("export BACKUP_SECRET_KEY=" + json.dumps(g(backup, "SECRET_KEY", "ACCESS_SECRET_KEY")))
+PY
+)"
+eval "$EXPORTS"
+
+export SCW_DEFAULT_REGION="$REGION"
+export AWS_ACCESS_KEY_ID="$SCW_ACCESS_KEY"
+export AWS_SECRET_ACCESS_KEY="$SCW_SECRET_KEY"
+
+VENV="${TMPDIR:-/tmp}/reef-storage-boto3"
+if [[ ! -x "$VENV/bin/python" ]]; then
+  python3 -m venv "$VENV"
+  "$VENV/bin/pip" -q install boto3
+fi
+
+echo "putting prefix-scoped bucket policy on $BUCKET (application id not printed)"
+BUCKET="$BUCKET" PREFIX="$PREFIX" APPLICATION_ID="$APPLICATION_ID" \
+  "$VENV/bin/python" - <<'PY'
+import json, os
+import boto3
+bucket = os.environ["BUCKET"]
+prefix = os.environ["PREFIX"]
+app = os.environ["APPLICATION_ID"]
+policy = {
+    "Version": "2023-04-17",
+    "Id": "resource-control-scoped-backup",
+    "Statement": [
+        {
+            "Sid": "BackupListPrefix",
+            "Effect": "Allow",
+            "Principal": {"SCW": f"application_id:{app}"},
+            "Action": [
+                "s3:ListBucket",
+                "s3:ListBucketMultipartUploads",
+                "s3:ListBucketVersions",
+                "s3:GetBucketLocation",
+                "s3:GetBucketVersioning",
+                "s3:GetLifecycleConfiguration",
+            ],
+            "Resource": [bucket],
+            "Condition": {"StringLike": {"s3:prefix": [prefix, prefix + "*"]}},
+        },
+        {
+            "Sid": "BackupObjectsUnderPrefix",
+            "Effect": "Allow",
+            "Principal": {"SCW": f"application_id:{app}"},
+            "Action": [
+                "s3:GetObject",
+                "s3:GetObjectVersion",
+                "s3:PutObject",
+                "s3:DeleteObject",
+                "s3:DeleteObjectVersion",
+                "s3:AbortMultipartUpload",
+                "s3:ListMultipartUploadParts",
+            ],
+            "Resource": [f"{bucket}/{prefix}*"],
+        },
+    ],
+}
+client = boto3.client(
+    "s3",
+    region_name="nl-ams",
+    endpoint_url="https://s3.nl-ams.scw.cloud",
+    aws_access_key_id=os.environ["AWS_ACCESS_KEY_ID"],
+    aws_secret_access_key=os.environ["AWS_SECRET_ACCESS_KEY"],
+)
+client.put_bucket_policy(Bucket=bucket, Policy=json.dumps(policy))
+print("bucket_policy=put")
+got = client.get_bucket_policy(Bucket=bucket)
+body = json.loads(got["Policy"])
+print("statements", [s.get("Sid") for s in body.get("Statement", [])])
+PY
+
+echo "verifying backup key: prefix ok, sibling denied"
+BUCKET="$BUCKET" PREFIX="$PREFIX" \
+AWS_ACCESS_KEY_ID="$BACKUP_ACCESS_KEY" AWS_SECRET_ACCESS_KEY="$BACKUP_SECRET_KEY" \
+  "$VENV/bin/python" - <<'PY'
+import os
+from botocore.exceptions import ClientError
+import boto3
+c = boto3.client(
+    "s3",
+    region_name="nl-ams",
+    endpoint_url="https://s3.nl-ams.scw.cloud",
+    aws_access_key_id=os.environ["AWS_ACCESS_KEY_ID"],
+    aws_secret_access_key=os.environ["AWS_SECRET_ACCESS_KEY"],
+)
+bucket = os.environ["BUCKET"]
+prefix = os.environ["PREFIX"]
+ok = prefix + ".policy-probe"
+sib = "other-consumer/.policy-probe"
+try:
+    c.put_object(Bucket=bucket, Key=ok, Body=b"ok")
+    c.delete_object(Bucket=bucket, Key=ok)
+    print("prefix_write=ok")
+except ClientError as e:
+    print("prefix_write=fail", e.response.get("Error", {}).get("Code"))
+try:
+    c.put_object(Bucket=bucket, Key=sib, Body=b"no")
+    print("sibling_write=UNEXPECTED_OK")
+    c.delete_object(Bucket=bucket, Key=sib)
+except ClientError as e:
+    print("sibling_write=denied", e.response.get("Error", {}).get("Code"))
+PY
+
+echo "done"
+unset SCW_SECRET_KEY SCW_ACCESS_KEY BACKUP_SECRET_KEY BACKUP_ACCESS_KEY AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY APPLICATION_ID
diff --git a/tools/create-platform-audit-bucket.sh b/tools/create-platform-audit-bucket.sh
new file mode 100755
index 0000000..eb491ca
--- /dev/null
+++ b/tools/create-platform-audit-bucket.sh
@@ -0,0 +1,139 @@
+#!/usr/bin/env bash
+# Create the planned Scaleway backup bucket. Reads bootstrap creds from
+# OpenBao. Never prints secret values. Writes only non-secret attributes
+# into substrate/object-stores/platform-audit-storage.yaml.
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+ATTR="$ROOT/substrate/object-stores/platform-audit-storage.yaml"
+BAO_ADDR="${BAO_ADDR:-${VAULT_ADDR:-https://bao.coulomb.social}}"
+BOOTSTRAP_PATH="platform/workloads/railiance/scaleway/bootstrap"
+SCOPED_PATH="platform/workloads/railiance/backup/object-storage"
+REGION="nl-ams"
+BUCKET="${BUCKET:-railiance-platform-pg-backup}"
+PREFIX="${PREFIX:-platform-pg/}"
+ENDPOINT="https://s3.nl-ams.scw.cloud"
+
+need() { command -v "$1" >/dev/null || { echo "missing $1" >&2; exit 2; }; }
+export PATH="${HOME}/.local/bin:${PATH}"
+need python3
+need curl
+need scw
+
+TOKEN="${OPENBAO_TOKEN:-${VAULT_TOKEN:-}}"
+if [[ -z "$TOKEN" && -f "$HOME/.vault-token" ]]; then
+  TOKEN="$(cat "$HOME/.vault-token")"
+fi
+[[ -n "$TOKEN" ]] || { echo "no OpenBao token" >&2; exit 2; }
+
+read_kv() {
+  local path="$1"
+  curl -fsS -H "X-Vault-Token: $TOKEN" \
+    "$BAO_ADDR/v1/platform/data/${path#platform/}" \
+    | python3 -c 'import json,sys; d=json.load(sys.stdin); print(json.dumps(d["data"]["data"]))'
+}
+
+if ! BOOTSTRAP_JSON="$(read_kv workloads/railiance/scaleway/bootstrap 2>/dev/null)"; then
+  echo "Bootstrap secret missing at $BOOTSTRAP_PATH" >&2
+  echo "Founder: put ACCESS_KEY SECRET_KEY DEFAULT_ORGANIZATION_ID DEFAULT_PROJECT_ID locally (not in chat)." >&2
+  echo "See docs/put-scaleway-bootstrap.md" >&2
+  exit 3
+fi
+
+eval "$(BOOTSTRAP_JSON="$BOOTSTRAP_JSON" python3 - <<'PY'
+import json, os, sys
+data = json.loads(os.environ["BOOTSTRAP_JSON"])
+needed = ("ACCESS_KEY", "SECRET_KEY", "DEFAULT_ORGANIZATION_ID", "DEFAULT_PROJECT_ID")
+missing = [k for k in needed if not (data.get(k) or data.get(k.lower()))]
+if missing:
+    sys.stderr.write("bootstrap fields missing: " + ",".join(missing) + "\n")
+    sys.exit(4)
+placeholders = [k for k in needed if (data.get(k) or data.get(k.lower()) or "") in {"xxx", "redacted", "changeme"}]
+if placeholders:
+    sys.stderr.write("bootstrap still has example placeholders; replace them in the OpenBao UI first\n")
+    sys.exit(5)
+def g(k):
+    return data.get(k) or data.get(k.lower())
+print("export SCW_ACCESS_KEY=" + json.dumps(g("ACCESS_KEY")))
+print("export SCW_SECRET_KEY=" + json.dumps(g("SECRET_KEY")))
+print("export SCW_DEFAULT_ORGANIZATION_ID=" + json.dumps(g("DEFAULT_ORGANIZATION_ID")))
+print("export SCW_DEFAULT_PROJECT_ID=" + json.dumps(g("DEFAULT_PROJECT_ID")))
+PY
+)"
+
+export SCW_DEFAULT_REGION="$REGION"
+
+if scw object bucket get "$BUCKET" region="$REGION" -o json >/dev/null 2>&1; then
+  echo "bucket $BUCKET already exists in $REGION; skipping create"
+else
+  echo "creating private bucket $BUCKET in $REGION (versioning on)"
+  scw object bucket create "$BUCKET" region="$REGION" acl=private enable-versioning=true -o json
+fi
+
+echo "applying 30-day lifecycle (current + noncurrent versions)"
+VENV="${TMPDIR:-/tmp}/reef-storage-boto3"
+if [[ ! -x "$VENV/bin/python" ]]; then
+  python3 -m venv "$VENV"
+  "$VENV/bin/pip" -q install boto3
+fi
+BUCKET="$BUCKET" AWS_ACCESS_KEY_ID="$SCW_ACCESS_KEY" AWS_SECRET_ACCESS_KEY="$SCW_SECRET_KEY" \
+  "$VENV/bin/python" - <<'PY'
+import os
+import boto3
+client = boto3.client(
+    "s3",
+    region_name="nl-ams",
+    endpoint_url="https://s3.nl-ams.scw.cloud",
+    aws_access_key_id=os.environ["AWS_ACCESS_KEY_ID"],
+    aws_secret_access_key=os.environ["AWS_SECRET_ACCESS_KEY"],
+)
+client.put_bucket_lifecycle_configuration(
+    Bucket=os.environ["BUCKET"],
+    LifecycleConfiguration={
+        "Rules": [
+            {
+                "ID": "retain-30-days",
+                "Status": "Enabled",
+                "Filter": {"Prefix": ""},
+                "Expiration": {"Days": 30},
+                "NoncurrentVersionExpiration": {"NoncurrentDays": 30},
+            }
+        ]
+    },
+)
+print("lifecycle applied")
+PY
+
+echo "creating a 20 EUR monthly budget alert if none exists"
+scw billing budget create consumption-limit=20 enabled=true -o json | python3 -c '
+import json,sys
+b=json.load(sys.stdin)
+print("budget_id", b.get("id") or b.get("budget",{}).get("id"))
+print("limit", b.get("consumption_limit") or b.get("budget",{}).get("consumption_limit"))
+' || echo "budget create skipped (permissions or API shape)"
+
+echo "writing non-secret attributes (no keys)"
+python3 - <<PY
+from pathlib import Path
+p = Path("$ATTR")
+text = p.read_text()
+repl = {
+    "status: planned": "status: active",
+    "endpoint: null": "endpoint: $ENDPOINT",
+    "region: nl-ams": "region: $REGION",
+    "bucket: null": "bucket: $BUCKET",
+    "prefix: null": "prefix: $PREFIX",
+    "versioning: null": "versioning: true",
+    "lifecycle: null": "lifecycle: 30-day current and noncurrent expiration",
+    "provider_project_ref: null": "provider_project_ref: ${SCW_DEFAULT_PROJECT_ID}",
+}
+for a,b in repl.items():
+    text = text.replace(a, b, 1)
+p.write_text(text)
+print(f"updated {p}")
+print(f"endpoint={ENDPOINT} bucket={BUCKET} region={REGION}")
+PY
+
+echo "Cost alert: set a project budget in the Scaleway console if scw billing is unavailable."
+echo "Scoped backup key is T04: $SCOPED_PATH (not written here)."
+echo "done. Commit the YAML; do not commit any key."
diff --git a/tools/ingest-scaleway-tfvars.sh b/tools/ingest-scaleway-tfvars.sh
new file mode 100755
index 0000000..1723330
--- /dev/null
+++ b/tools/ingest-scaleway-tfvars.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+# Founder-only. Reads a local scaleway.auto.tfvars (or equivalent) and
+# writes the four fields to OpenBao. Never prints values. Never commit
+# the tfvars file.
+set -euo pipefail
+
+TFVARS="${1:-}"
+[[ -n "$TFVARS" && -f "$TFVARS" ]] || {
+  echo "usage: $0 /path/to/scaleway.auto.tfvars" >&2
+  exit 2
+}
+command -v bao >/dev/null || { echo "missing bao" >&2; exit 2; }
+
+mapfile -t EXPORTS < <(python3 - "$TFVARS" <<'PY'
+import re, json, sys
+text = open(sys.argv[1], encoding="utf-8").read()
+# HCL-ish: key = "value"  (ignore comments and the main.tf provider block)
+found = {}
+for name, dest in (
+    ("access_key", "ACCESS_KEY"),
+    ("secret_key", "SECRET_KEY"),
+    ("organization_id", "DEFAULT_ORGANIZATION_ID"),
+    ("project_id", "DEFAULT_PROJECT_ID"),
+):
+    m = re.search(rf'(?m)^\s*{name}\s*=\s*"([^"]*)"\s*$', text)
+    if not m or not m.group(1) or m.group(1) in {"xxx", "redacted"}:
+        sys.stderr.write(f"missing or placeholder field: {name}\n")
+        sys.exit(4)
+    found[dest] = m.group(1)
+for dest, val in found.items():
+    print(f"{dest}={json.dumps(val)}")
+PY
+)
+
+# Write via env to bao without putting values on argv.
+# bao kv put supports @file; we use a mode-0600 temp dir.
+umask 077
+tmp="$(mktemp -d)"
+trap 'rm -rf "$tmp"' EXIT
+for line in "${EXPORTS[@]}"; do
+  field="${line%%=*}"
+  python3 -c 'import json,os,sys; open(sys.argv[2],"w").write(json.loads(sys.argv[1]))' \
+    "${line#*=}" "$tmp/$field"
+done
+
+bao kv put platform/workloads/railiance/scaleway/bootstrap \
+  ACCESS_KEY=@"$tmp/ACCESS_KEY" \
+  SECRET_KEY=@"$tmp/SECRET_KEY" \
+  DEFAULT_ORGANIZATION_ID=@"$tmp/DEFAULT_ORGANIZATION_ID" \
+  DEFAULT_PROJECT_ID=@"$tmp/DEFAULT_PROJECT_ID"
+
+echo "wrote four fields to platform/workloads/railiance/scaleway/bootstrap"
+bao kv metadata get platform/workloads/railiance/scaleway/bootstrap
+echo "shred or keep your tfvars; do not commit it"
diff --git a/workplans/REEF-STORAGE-WP-0001-bootstrap.md b/workplans/REEF-STORAGE-WP-0001-bootstrap.md
new file mode 100644
index 0000000..5d0eb31
--- /dev/null
+++ b/workplans/REEF-STORAGE-WP-0001-bootstrap.md
@@ -0,0 +1,44 @@
+---
+id: REEF-STORAGE-WP-0001
+type: workplan
+title: "Bootstrap reef-storage"
+domain: financials
+repo: reef-storage
+status: active
+owner: grok
+topic_slug: railiance
+created: "2026-08-14"
+updated: "2026-08-14"
+related:
+  - RMASTER-WP-0022
+  - RESOURCE-WP-0002
+---
+
+# REEF-STORAGE-WP-0001 — bootstrap
+
+## Goal
+
+Stand up the planned storage reef: declaration without a rail, attribute
+file layout, and the contract for non-secret object-store facts.
+
+## T01 — Declare the reef
+
+```task
+id: REEF-STORAGE-WP-0001-T01
+status: done
+priority: high
+```
+
+`declarations/reef.yaml`: `substrate_kind: object-storage`, no
+`primary_rail`, no `hosted_rails`, empty `current_members`, planned.
+
+## T02 — Attribute contract
+
+```task
+id: REEF-STORAGE-WP-0001-T02
+status: done
+priority: high
+```
+
+`schemas/object-store-attributes.schema.json` and a planned
+`platform-audit-storage.yaml` with null operating fields until purchase.
diff --git a/workplans/REEF-STORAGE-WP-0002-fill-after-purchase.md b/workplans/REEF-STORAGE-WP-0002-fill-after-purchase.md
new file mode 100644
index 0000000..4320070
--- /dev/null
+++ b/workplans/REEF-STORAGE-WP-0002-fill-after-purchase.md
@@ -0,0 +1,37 @@
+---
+id: REEF-STORAGE-WP-0002
+type: workplan
+title: "Fill Scaleway attributes after purchase"
+domain: financials
+repo: reef-storage
+status: active
+owner: grok
+topic_slug: railiance
+created: "2026-08-14"
+updated: "2026-08-14"
+related:
+  - RESOURCE-WP-0002
+---
+
+# REEF-STORAGE-WP-0002 — fill after purchase
+
+Purchase happened 2026-08-14. Follow `docs/post-purchase-seed.md`.
+
+## T01 — Write live non-secret attributes
+
+```task
+id: REEF-STORAGE-WP-0002-T01
+status: done
+priority: high
+```
+
+Fill `substrate/object-stores/platform-audit-storage.yaml` endpoint,
+bucket, prefix, project ref, versioning, lifecycle. Promote topology
+members. No secrets.
+
+Done 2026-08-14: bucket `railiance-platform-pg-backup` in `nl-ams` is
+live (versioning on, 30-day current and noncurrent expiration, owner-only
+ACL). Attributes, topology member, and declaration `current_members`
+written. Reef `lifecycle_state` stays `planned` until RESOURCE-WP-0002-T05.
+Cost backstop is a founder email billing alert. Scaleway has no
+euro hard-stop; that gap is accepted.