diff --git a/src/action-common.ts b/src/action-common.ts
new file mode 100644
index 000000000..3b2238672
--- /dev/null
+++ b/src/action-common.ts
@@ -0,0 +1,14 @@
+import { Env } from "./environment";
+import { FeatureEnablement } from "./feature-flags";
+import { Logger } from "./logging";
+
+export interface ActionState {
+  /** The logger that is in use. */
+  logger: Logger;
+
+  /** Information about environment variables. */
+  env: Env;
+
+  /** Information about enabled feature flags. */
+  features: FeatureEnablement;
+}