diff --git a/devdocs/NAME-MAP.md b/devdocs/NAME-MAP.md
new file mode 100644
index 0000000..1abb0c1
--- /dev/null
+++ b/devdocs/NAME-MAP.md
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+# AyaNova ↔ Sockeye name map
+
+Sockeye's server began as a copy of AyaNova's (`raven/server/AyaNova`). Some names were
+changed for Sockeye; most code is otherwise the same. Use this map to carry a fix from one
+codebase to the other. Mapped 2026-10-27, AyaNova `main` (8.3.0) against Sockeye `main` (8.1.x).
+
+`compare-with-raven.sh` (beside this file) applies the map and compares the shared files, so
+only real code differences show:
+
+```bash
+bash compare-with-raven.sh                  # every shared file: differing lines, AyaNova lines, path
+bash compare-with-raven.sh util/DbUtil.cs   # the diff for one file (< AyaNova mapped, > Sockeye)
+```
+
+## Renamed
+
+| AyaNova | Sockeye | Where |
+|---|---|---|
+| namespace `AyaNova.*`, `AyaNova` in text | `Sockeye.*`, `Sockeye` | everywhere |
+| `AyaType` (enum) | `SockType` | `biz/AyaType.cs` → `biz/SockType.cs` |
+| `AyaTypeId` | `SockTypeId` | `biz/` |
+| `AyaEvent` (enum) | `SockEvent` | `biz/` |
+| `AyaDaysOfWeek` (enum) | `SockDaysOfWeek` | `biz/` |
+| `AyaNovaVersion` | `SockeyeVersion` | `util/` |
+| `AyaNovaConnectionString`, `AyaNovaServerURL`, `logRuleAyaNovaItems` | `SockeyeConnectionString`, `SockeyeServerURL`, `logRuleSockeyeItems` | `util/` |
+| `AyaTypeTranslated`, `ayaTypeColumnName` | `SockTypeTranslated`, `sockTypeColumnName` | DataList, PickList |
+| stored type property `AType` (JSON `aType`) | `SockType` (JSON `sockType`) | `models/`: Attachment, Event, SearchKey, OpsJob, Report, Review, IntegrationItem, DataListSelectedRequest… |
+| computed `public AyaType AyaType { get => AyaType.X; }` (JSON `ayaType`) | `public SockType SType { get => SockType.X; }` (JSON `sType`) | business models: Customer, User, Memo, Reminder, Review… |
+| locals and parameters `ayaType`, `atype`, `ayId`, `ayaEvent` | `sockType`, `sockId`, `sockEvent` (a few `stype`, `sock`) | everywhere |
+| database columns `atype`, `ayatype`, `ayid`, `ayevent` | `socktype`, `sockid`, `sockevent`, and `stype` on business tables | `util/AySchema.cs`, raw SQL in DataList/PickList/biz |
+| config keys `AYANOVA_*` | `SOCKEYE_*`, same suffix | `util/ServerBootConfig.cs`, `config.json`, environment |
+| client `src/api/ayatype.js`, `ayanova-version.js` | `src/api/socktype.js`, `sockeye-version.js` | `raven-client` ↔ `sockeye-client` |
+
+The shared `AyaType`/`SockType` members have the same numbers (Customer 8, User 3, Report 57…),
+and `AyaEvent`/`SockEvent` are identical, so stored values mean the same thing in both.
+
+## Not renamed (same in both)
+
+`AyContext`, `AySchema`, `AyaPickListFieldDefinition`, `AyaPickList`, `AyaField`, `AyImportData`,
+`AyFileInfo`, `AyaNovaLicenseKey`; table names (`aevent`, `asearchkey`, `auser`…); routes
+(`api/v{version}/…`); the folder layout (`biz`, `ControllerHelpers`, `Controllers`, `DataList`,
+`generator`, `kpi`, `models`, `PickList`, `resource`, `util`).
+
+## Only in one codebase
+
+- **AyaNova only:** the service objects (work orders, quotes, PM, parts, inventory, units,
+  contracts, projects, rates, CSR, loan units, purchase orders, task groups, tax codes), their
+  KPIs, `License.cs` (licence check, client side), `Seeder.cs`, `ReportApiRelay.cs`,
+  `CoreJobLicense`, `CoreJobVersionCheck`, `CoreJobPM*`, `SuperUserDefaultPasswordRoutes`,
+  `CustomerContactRoutes`, and newer config keys (`AYANOVA_TRUSTED_PROXIES`,
+  `AYANOVA_SMTP_ACCEPT_ANY_CERTIFICATE`, `AYANOVA_REMOVE_LICENSE_FROM_DB`,
+  `AYANOVA_REPORT_RENDER_API_URL_OVERRIDE`). Also `AyaDayOfWeek` and `AyaUnitsOfTime` (PM).
+- **Sockeye only:** licensing and sales (`KeyFactory`, `RavenKeyFactory`, `LicenseBiz`,
+  products, purchases, subscriptions, subscription servers and their states, trial licence
+  requests, vendor notifications, `GZCase`), `SockBot*` jobs, `FetchController`,
+  `RvfController`, `RvrController`, `AutoOrderProcessingUtil`.
+
+## How close the shared files are (2026-10-27)
+
+288 server files exist in both. After mapping, 156 are identical, about 55 differ by 1–10
+lines, and the rest differ more, mostly because one codebase has objects the other lacks.
+Low-level files that differ by more than the names, worth checking when a fix touches them:
+
+| File | Differing lines | Main reason |
+|---|---|---|
+| `util/RunProgram.cs` | most | AyaNova has `RunNoShell` (backup without a shell, 8.3.0); Sockeye still has the old `Run` |
+| `generator/CoreJobBackup.cs` | ~50 | same: Sockeye still passes the password in the `pg_dump` URI through a shell |
+| `util/DbUtil.cs`, `util/AySchema.cs` | many | different tables; check `AdminConnectionString` and drop-and-recreate by hand |
+| `DataList/DataListSqlFilterCriteriaBuilder.cs` | ~155 | filter fixes went into each separately; compare before changing either |
+| `util/ServerBootConfig.cs`, `Program.cs`, `Startup.cs` | many | config keys and service wiring differ |
+| `util/FileUtil.cs`, `util/StringUtil.cs`, `util/DateUtil.cs`, `generator/CoreJobNotify.cs`, `generator/CoreJobSweeper.cs`, `util/Mailer.cs` | 15–90 | partly real drift; check with the script |
+
+Rerun the script for current numbers; this table is a snapshot.
+
+## Carrying a fix across
+
+1. Make and test the fix in one codebase.
+2. Run `bash compare-with-raven.sh <file>` on each file touched: if the file matches apart from
+   names, the same change applies with the names above.
+3. Record in both repos whether the fix applies (done, n/a, or deferred). In AyaNova that is
+   `raven/devdocs/modernization/NET10-PORT.md`.
diff --git a/devdocs/compare-with-raven.sh b/devdocs/compare-with-raven.sh
new file mode 100644
index 0000000..be2a1db
--- /dev/null
+++ b/devdocs/compare-with-raven.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# Compare Sockeye server source with AyaNova's (raven) after mapping AyaNova's names to
+# Sockeye's (see NAME-MAP.md), so only real code differences show.
+#
+#   bash compare-with-raven.sh               one line per shared file: differing lines, raven lines, path
+#   bash compare-with-raven.sh util/DbUtil.cs  the diff for one file (raven mapped < > sockeye)
+#
+# Read-only. Expects the repos side by side under one folder (C:\data\code).
+
+set -euo pipefail
+here="$(cd "$(dirname "$0")" && pwd)"
+R="$here/../../raven/server/AyaNova"
+S="$here/../server"
+
+# AyaNova name -> Sockeye name; order matters (longer names first)
+norm() {
+  sed -E \
+    -e 's/AyaNovaVersion/SockeyeVersion/g' \
+    -e 's/AyaNova/Sockeye/g; s/ayanova/sockeye/g; s/AYANOVA_/SOCKEYE_/g' \
+    -e 's/public AyaType AyaType/public SockType SType/g' \
+    -e 's/AyaTypeId/SockTypeId/g; s/AyaType/SockType/g; s/ayaType/sockType/g; s/ayatype/socktype/g' \
+    -e 's/\bAType\b/SockType/g; s/\batype\b/socktype/g' \
+    -e 's/AyaEvent/SockEvent/g; s/ayaEvent/sockEvent/g; s/ayevent/sockevent/g' \
+    -e 's/AyaDaysOfWeek/SockDaysOfWeek/g' \
+    -e 's/\bAyId\b/SockId/g; s/\bayId\b/sockId/g; s/\bayid\b/sockid/g' \
+    "$1" | tr -d '\r'
+}
+
+if [ $# -gt 0 ]; then
+  diff <(norm "$R/$1") <(tr -d '\r' < "$S/$1") || true
+  exit 0
+fi
+
+(cd "$R" && find . -name '*.cs' -not -path './obj/*' -not -path './bin/*') | sort | while read -r f; do
+  [ -f "$S/$f" ] || continue
+  d=$(diff <(norm "$R/$f") <(tr -d '\r' < "$S/$f") | grep -c '^[<>]' || true)
+  echo "$d $(wc -l < "$R/$f") ${f#./}"
+done