diff --git a/scripts/check/check-public-creds.mjs b/scripts/check/check-public-creds.mjs
index 74714b3dbc..716c3730b8 100644
--- a/scripts/check/check-public-creds.mjs
+++ b/scripts/check/check-public-creds.mjs
@@ -92,6 +92,7 @@ const ENV_KEY_RE = /(clientId|clientSecret|apiKey)Env\s*:/;
 export const KNOWN_LITERAL_CREDS = new Set([
   "open-sse/services/usage/minimax.ts:213:minimax", // TODO(6A.8): pre-existing FP — TS fn-param type, not a credential (getMiniMaxUsage signature)
   "open-sse/services/usage/minimax.ts:213:minimax-cn", // TODO(6A.8): pre-existing FP — TS fn-param type, not a credential (getMiniMaxUsage signature)
+  "open-sse/executors/zcodeProtocol.ts:302:omniroute-${process.pid}", // pre-existing FP — clientId identifier, not a credential (ZCode handshake client name)
 ]);
 
 /**
diff --git a/stryker.conf.json b/stryker.conf.json
index b81aac7b55..a8d0d3c152 100644
--- a/stryker.conf.json
+++ b/stryker.conf.json
@@ -110,8 +110,9 @@
       "tests/unit/chatcore-compression-integration.test.ts",
       "tests/unit/chatcore-executor-helpers.test.ts",
       "tests/unit/chatcore-executor-proxy.test.ts",
-      "tests/unit/chatcore-extracted-modules-3821.test.ts",
-      "tests/unit/chatcore-headers.test.ts",
+    "tests/unit/chatcore-extracted-modules-3821.test.ts",
+    "tests/unit/chatcore-header-drop-warn-dedupe-10315.test.ts",
+    "tests/unit/chatcore-headers.test.ts",
       "tests/unit/chatcore-imports-cleanly.test.ts",
       "tests/unit/chatcore-log-truncation.test.ts",
       "tests/unit/chatcore-memory-extraction.test.ts",
diff --git a/tests/unit/build/optional-transformers-dependency.test.ts b/tests/unit/build/optional-transformers-dependency.test.ts
index 07bf0d8b69..7e1c07fe7f 100644
--- a/tests/unit/build/optional-transformers-dependency.test.ts
+++ b/tests/unit/build/optional-transformers-dependency.test.ts
@@ -15,7 +15,7 @@ test("@huggingface/transformers is a regular dependency so npm ci never skips it
   // pin dragged onnxruntime-node@1.21.0 whose NAN build no longer compiles), which
   // broke `npm ci`/`next build` with "Can't resolve @huggingface/transformers"
   // (lazy import in src/lib/memory/embedding/transformersLocal.ts). As a regular
-  // dep with onnxruntime-node@~1.24.3 (napi prebuilds, no node-gyp) it stays
+  // dep with onnxruntime-node@~1.27.0 (napi prebuilds, no node-gyp) it stays
   // installable and the memory embedding path requires() cleanly.
   const pkg = readJson<{
     dependencies?: Record<string, string>;
@@ -38,7 +38,7 @@ test("transformers + onnxruntime-node are regular dependencies (not optional)",
 
   assert.equal(
     pkg.dependencies?.["onnxruntime-node"],
-    "~1.24.3",
+    "~1.27.0",
     "onnxruntime-node is a regular dep (napi prebuilds, installable on Node 24/26)"
   );
   assert.equal(pkg.optionalDependencies?.["onnxruntime-node"], undefined);
diff --git a/tests/unit/cli-catalog-counts.test.ts b/tests/unit/cli-catalog-counts.test.ts
index e6ab441719..fe96ee40b8 100644
--- a/tests/unit/cli-catalog-counts.test.ts
+++ b/tests/unit/cli-catalog-counts.test.ts
@@ -30,24 +30,24 @@ test(`CLI_TOOLS has exactly ${EXPECTED_AGENT_COUNT} agent entries`, () => {
   );
 });
 
-test("CLI_TOOLS total code entries (including none) equals 25 (21 visible + 4 none)", () => {
-  // code-none entries: antigravity, kiro, cursor (app), hermes (simple guide)
+test("CLI_TOOLS total code entries (including none) equals 26 (21 visible + 5 none)", () => {
+  // code-none entries: zcode, antigravity, kiro, cursor (app), hermes (simple guide)
   const codeNone = codeAll.filter((t) => t.baseUrlSupport === "none");
   assert.equal(
     codeNone.length,
-    4,
-    `Expected 4 code entries with baseUrlSupport='none', got ${codeNone.length}: ${codeNone.map((t) => t.id).join(", ")}`
+    5,
+    `Expected 5 code entries with baseUrlSupport='none', got ${codeNone.length}: ${codeNone.map((t) => t.id).join(", ")}`
   );
-  assert.equal(codeAll.length, 25, `Expected 25 total code entries, got ${codeAll.length}`);
+  assert.equal(codeAll.length, 26, `Expected 26 total code entries, got ${codeAll.length}`);
 });
 
-test("CLI_TOOLS total (code + agent) = 33", () => {
-  assert.equal(all.length, 33, `Expected 33 total entries, got ${all.length}`);
+test("CLI_TOOLS total (code + agent) = 34", () => {
+  assert.equal(all.length, 34, `Expected 34 total entries, got ${all.length}`);
 });
 
 test("All code-none entries have configType mitm OR are legacy excluded entries", () => {
   const codeNone = codeAll.filter((t) => t.baseUrlSupport === "none");
-  const allowedIds = new Set(["antigravity", "kiro", "cursor", "hermes"]);
+  const allowedIds = new Set(["zcode", "antigravity", "kiro", "cursor", "hermes"]);
   for (const entry of codeNone) {
     assert.ok(
       allowedIds.has(entry.id),
diff --git a/tests/unit/cli-tools-schema.test.ts b/tests/unit/cli-tools-schema.test.ts
index 92d3944882..ee2354986b 100644
--- a/tests/unit/cli-tools-schema.test.ts
+++ b/tests/unit/cli-tools-schema.test.ts
@@ -45,6 +45,7 @@ test("CLI_TOOLS registry contains all expected tools including rebuilt Qwen Code
     "crush",
     "grok-build",
     "qwen",
+    "zcode",
   ];
   for (const id of expected) {
     assert.ok(id in CLI_TOOLS, `Missing tool: ${id}`);
diff --git a/tests/unit/feature-flags-settings.test.ts b/tests/unit/feature-flags-settings.test.ts
index 044b82deda..cc8491f16d 100644
--- a/tests/unit/feature-flags-settings.test.ts
+++ b/tests/unit/feature-flags-settings.test.ts
@@ -30,13 +30,13 @@ const {
   isControlPlaneProxyDirectFallbackEnabled,
 } = await import("../../src/shared/utils/featureFlags.ts");
 
-const EXPECTED_FEATURE_FLAG_COUNT = 48;
+const EXPECTED_FEATURE_FLAG_COUNT = 49;
 
 // ──────────────────────────────────────────────────────
 // Test group 1 — Flag definitions registry
 // ──────────────────────────────────────────────────────
 describe("featureFlagDefinitions", () => {
-  it("has exactly 48 flag definitions", () => {
+  it("has exactly 49 flag definitions", () => {
     assert.strictEqual(FEATURE_FLAG_DEFINITIONS.length, EXPECTED_FEATURE_FLAG_COUNT);
   });
 
@@ -344,7 +344,7 @@ describe("resolveFeatureFlag", () => {
   });
 
   describe("resolveAllFeatureFlags", () => {
-    it("returns all 47 flags", () => {
+    it("returns all 49 flags", () => {
       const all = resolveAllFeatureFlags();
       assert.strictEqual(all.length, EXPECTED_FEATURE_FLAG_COUNT);
     });