diff --git a/cmd/soong_build/main.go b/cmd/soong_build/main.go
index f07eafa..b3a6ee0 100644
--- a/cmd/soong_build/main.go
+++ b/cmd/soong_build/main.go
@@ -48,6 +48,7 @@
 	delvePath   string
 
 	moduleGraphFile   string
+	moduleActionsFile string
 	docFile           string
 	bazelQueryViewDir string
 	bp2buildMarker    string
@@ -76,6 +77,7 @@
 
 	// Flags representing various modes soong_build can run in
 	flag.StringVar(&moduleGraphFile, "module_graph_file", "", "JSON module graph file to output")
+	flag.StringVar(&moduleActionsFile, "module_actions_file", "", "JSON file to output inputs/outputs of actions of modules")
 	flag.StringVar(&docFile, "soong_docs", "", "build documentation file to output")
 	flag.StringVar(&bazelQueryViewDir, "bazel_queryview_dir", "", "path to the bazel queryview directory relative to --top")
 	flag.StringVar(&bp2buildMarker, "bp2build_marker", "", "If set, run bp2build, touch the specified marker file then exit")
@@ -176,15 +178,17 @@
 	}
 }
 
-func writeJsonModuleGraph(ctx *android.Context, path string) {
-	f, err := os.Create(shared.JoinPath(topDir, path))
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "%s", err)
+func writeJsonModuleGraphAndActions(ctx *android.Context, graphPath string, actionsPath string) {
+	graphFile, graphErr := os.Create(shared.JoinPath(topDir, graphPath))
+	actionsFile, actionsErr := os.Create(shared.JoinPath(topDir, actionsPath))
+	if graphErr != nil || actionsErr != nil {
+		fmt.Fprintf(os.Stderr, "Graph err: %s, actions err: %s", graphErr, actionsErr)
 		os.Exit(1)
 	}
 
-	defer f.Close()
-	ctx.Context.PrintJSONGraph(f)
+	defer graphFile.Close()
+	defer actionsFile.Close()
+	ctx.Context.PrintJSONGraphAndActions(graphFile, actionsFile)
 }
 
 func writeBuildGlobsNinjaFile(srcDir, buildDir string, globs func() pathtools.MultipleGlobResults, config interface{}) []string {
@@ -254,7 +258,7 @@
 			writeDepFile(queryviewMarkerFile, ninjaDeps)
 			return queryviewMarkerFile
 		} else if generateModuleGraphFile {
-			writeJsonModuleGraph(ctx, moduleGraphFile)
+			writeJsonModuleGraphAndActions(ctx, moduleGraphFile, moduleActionsFile)
 			writeDepFile(moduleGraphFile, ninjaDeps)
 			return moduleGraphFile
 		} else if generateDocFile {