diff --git a/actions/clients/fileRouteBuilder.js b/actions/clients/fileRouteBuilder.js
index 944c366f..0d366469 100644
--- a/actions/clients/fileRouteBuilder.js
+++ b/actions/clients/fileRouteBuilder.js
@@ -31,3 +31,7 @@ export const withBaseUrl = (baseUrl, route) => {
 export const appendQuerySuffix = (route, suffix = "") => {
     return `${route}${suffix}`;
 };
+
+export const appendHashSuffix = (route, hashBuilder) => {
+    return appendQuerySuffix(route, hashBuilder(route));
+};
diff --git a/actions/services/documentDirectService.js b/actions/services/documentDirectService.js
index b3d0d3c6..8075e3bf 100644
--- a/actions/services/documentDirectService.js
+++ b/actions/services/documentDirectService.js
@@ -4,7 +4,8 @@ import { hashAPIPath } from "../core/hash";
 import {
     buildFileQuery,
     withBaseUrl,
-    appendQuerySuffix
+    appendQuerySuffix,
+    appendHashSuffix
 } from "../clients/fileRouteBuilder";
 import {
     getFileJson,
@@ -19,7 +20,7 @@ export const getAwaitingSubmissionFromBlob = (containerName) => {
     });
 
     return getFileJson(
-        withBaseUrl(BASE_URL, appendQuerySuffix(route, hashAPIPath(route)))
+        withBaseUrl(BASE_URL, appendHashSuffix(route, hashAPIPath))
     ).catch((error) => {
         consoleLogger(error);
     });
@@ -31,7 +32,7 @@ export const getRepsFromBlob = (containerName) => {
     });
 
     return getFileJson(
-        withBaseUrl(BASE_URL, appendQuerySuffix(route, hashAPIPath(route)))
+        withBaseUrl(BASE_URL, appendHashSuffix(route, hashAPIPath))
     ).catch((error) => {
         consoleLogger(error);
     });
@@ -227,7 +228,7 @@ export const getFilesFromBlob = (containerName, casefolderID) => {
     });
 
     return getFileJson(
-        withBaseUrl(BASE_URL, appendQuerySuffix(route, hashAPIPath(route)))
+        withBaseUrl(BASE_URL, appendHashSuffix(route, hashAPIPath))
     ).catch((error) => {
         consoleLogger(error);
     });
@@ -328,7 +329,7 @@ export const getProgressFromBlob = async (containerName, casereference) => {
     );
 
     return getFileJson(
-        withBaseUrl(BASE_URL, appendQuerySuffix(route, hashAPIPath(route)))
+        withBaseUrl(BASE_URL, appendHashSuffix(route, hashAPIPath))
     ).catch((error) => {
         consoleLogger(error);
     });
@@ -338,7 +339,7 @@ export const createContainerProxy = (containerName) => {
     var route = buildFileQuery("/api/file/setupcontainer", {
         ident: containerName
     });
-    var queryUrl = appendQuerySuffix(route, hashAPIPath(route));
+    var queryUrl = appendHashSuffix(route, hashAPIPath);
 
     return getFileJson(withBaseUrl(BASE_URL, queryUrl)).catch((error) => {
         consoleLogger(error);
diff --git a/memory-bank/change-log.md b/memory-bank/change-log.md
index 18114986..a8714674 100644
--- a/memory-bank/change-log.md
+++ b/memory-bank/change-log.md
@@ -2871,3 +2871,37 @@ Validation:
 Follow-ups:
 
 - Remaining special-case signed pattern is now primarily the signed-suffix append composition in `sendCaseCompleteMessage` (already using shared `buildSignedUrl`), with broader module migrations to be planned in future bounded slices.
+
+---
+
+### CL-080: TASK22269 Slice B1.5 — document hash-suffix route normalization helper
+
+date: 2026-03-25
+author: Cline
+scope: `actions/clients/fileRouteBuilder.js`, `actions/services/documentDirectService.js`, `tests/{serviceHarness,phase22/client-utils-behaviour}.cjs`
+type: change
+rationale: Continue grouped follow-on candidates by normalizing repeated deterministic hash-suffix route assembly in document service behind one shared route-builder helper.
+impact: Reduces repeated `appendQuerySuffix(route, hashAPIPath(route))` composition drift risk while preserving route/query/hash behavior.
+status: completed
+
+Summary:
+
+- Added `appendHashSuffix(route, hashBuilder)` to `fileRouteBuilder`.
+- Migrated document service deterministic hash-suffix paths to new helper:
+    - `getAwaitingSubmissionFromBlob`
+    - `getRepsFromBlob`
+    - `getFilesFromBlob`
+    - `getProgressFromBlob`
+    - `createContainerProxy`
+- Updated shared VM harness defaults (`tests/serviceHarness.cjs`) to inject `appendHashSuffix`.
+- Expanded phase22 utility test to cover new helper behavior (`tests/phase22/client-utils-behaviour.test.cjs`).
+
+Validation:
+
+- `npm run lint` -> pass with warnings only (pre-existing `react-hooks/exhaustive-deps`; no new lint errors)
+- `node tests/phase22/index.test.cjs` -> pass
+- `node tests/phase7/service-behaviour.test.cjs` -> pass (13/13)
+
+Follow-ups:
+
+- Remaining non-service candidate for this stream is `actions/azurestorage.js` direct `hashAPIPath` metadata assembly (separate bounded slice if desired).
diff --git a/tests/phase22/client-utils-behaviour.test.cjs b/tests/phase22/client-utils-behaviour.test.cjs
index 76bad6fe..310c58fc 100644
--- a/tests/phase22/client-utils-behaviour.test.cjs
+++ b/tests/phase22/client-utils-behaviour.test.cjs
@@ -70,7 +70,7 @@ const loadFileRouteBuilderModule = (injected = {}) => {
     source = source.replace(/import[\s\S]*?from\s+"[^"]+";\n?/g, "");
     source = source.replace(/export const\s+/g, "const ");
     source +=
-        "\nmodule.exports = { buildFileQuery, withBaseUrl, appendQuerySuffix };\n";
+        "\nmodule.exports = { buildFileQuery, withBaseUrl, appendQuerySuffix, appendHashSuffix };\n";
 
     const context = {
         module: { exports: {} },
@@ -211,6 +211,12 @@ test("clients/fileRouteBuilder builds query with optional encoding and suffix he
         mod.appendQuerySuffix(unencoded, "&hash=123"),
         "/api/file/getbloblist?container=abc&casefolderID=x/y&hash=123"
     );
+    assert.strictEqual(
+        mod.appendHashSuffix(unencoded, (route) =>
+            route.includes("getbloblist") ? "&hash=abc" : ""
+        ),
+        "/api/file/getbloblist?container=abc&casefolderID=x/y&hash=abc"
+    );
 });
 
 const run = async () => {
diff --git a/tests/serviceHarness.cjs b/tests/serviceHarness.cjs
index 9ab82344..aea3882b 100644
--- a/tests/serviceHarness.cjs
+++ b/tests/serviceHarness.cjs
@@ -200,6 +200,8 @@ const loadServiceModule = (fileName, injected = {}) => {
     const defaultWithBaseUrl = (baseUrl, route) => `${baseUrl}${route}`;
     const defaultAppendQuerySuffix = (route, suffix = "") =>
         `${route}${suffix}`;
+    const defaultAppendHashSuffix = (route, hashBuilder) =>
+        defaultAppendQuerySuffix(route, hashBuilder(route));
 
     const context = {
         module: { exports: {} },
@@ -230,6 +232,7 @@ const loadServiceModule = (fileName, injected = {}) => {
         withBaseUrl: injected.withBaseUrl || defaultWithBaseUrl,
         appendQuerySuffix:
             injected.appendQuerySuffix || defaultAppendQuerySuffix,
+        appendHashSuffix: injected.appendHashSuffix || defaultAppendHashSuffix,
         ...injected
     };