diff --git a/test/integration/genesis.ts b/test/integration/genesis.ts
index 191101e..4775048 100644
--- a/test/integration/genesis.ts
+++ b/test/integration/genesis.ts
@@ -64,6 +64,9 @@ export interface GenesisOptions {
    */
   toolsSource: string;
   catalogSource: string;
+  /** Where the shared library is built from — published before the base resolves it (ADR 0076). */
+  sdkSource: string;
+  sdkRef?: string;
   /** What of the catalogue to build. A branch under test is the usual reason this is not main. */
   catalogRef?: string;
   log?: (m: string) => void;
@@ -148,6 +151,8 @@ export async function genesis(o: GenesisOptions): Promise<GenesisResult> {
     `--tools-source ${o.toolsSource}`,
     `--catalog-source ${o.catalogSource}`,
     `--catalog-ref ${o.catalogRef ?? "main"}`,
+    `--sdk-source ${o.sdkSource}`,
+    `--sdk-ref ${o.sdkRef ?? "main"}`,
     // The choices, answered the unattended way. Both have one option today, so these are
     // redundant on purpose: the day a second filter exists, this bed keeps working instead of
     // refusing, and choosing becomes a thing it visibly does.
diff --git a/test/integration/one-node-mesh.test.ts b/test/integration/one-node-mesh.test.ts
index c19beb0..07d962c 100644
--- a/test/integration/one-node-mesh.test.ts
+++ b/test/integration/one-node-mesh.test.ts
@@ -470,6 +470,8 @@ before(async () => {
         toolsSource: forgeUrl(BASE.repo),
         catalogSource: forgeUrl(MODULE.repo),
         catalogRef: refFor(MODULE.repo),
+        sdkSource: forgeUrl("mesh-sdk"),
+        sdkRef: refFor("mesh-sdk"),
         log: (m) => console.log(m),
       });
     } catch (err) {