diff --git a/.github/workflows/cultnet-interop.yml b/.github/workflows/cultnet-interop.yml
index cfafd918..7d513e47 100644
--- a/.github/workflows/cultnet-interop.yml
+++ b/.github/workflows/cultnet-interop.yml
@@ -71,6 +71,9 @@ jobs:
       - name: Install Node dependencies
         run: npm install --no-package-lock
 
+      - name: Build TypeScript workspace dependencies
+        run: npm run build --workspace packages/cultcache-ts
+
       - name: Build Kotlin interop peer
         shell: pwsh
         run: .\packages\cultmesh-kotlin\build.ps1
diff --git a/packages/cultnet-ts/src/json-schema-contract.ts b/packages/cultnet-ts/src/json-schema-contract.ts
index a42a0da1..b97a6762 100644
--- a/packages/cultnet-ts/src/json-schema-contract.ts
+++ b/packages/cultnet-ts/src/json-schema-contract.ts
@@ -5,6 +5,7 @@ export interface JsonSchemaContract<TValue> extends CultCacheSchema<TValue> {
   readonly schemaId: string;
   readonly schema: object;
   readonly validate: (input: unknown) => input is TValue;
+  readonly parse: (input: unknown) => TValue;
 }
 
 export interface JsonSchemaContractDefinition {