diff --git a/src/auto-compact.ts b/src/auto-compact.ts
index 0af738e..a4ae915 100644
--- a/src/auto-compact.ts
+++ b/src/auto-compact.ts
@@ -1,5 +1,10 @@
 import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";
-import type { RuntimeFlags } from "./state";
+import {
+	effectiveIntegration,
+	type ReinjectDeliveryMode,
+	type SkillReinjectSettings,
+} from "./settings";
+import type { AutoCompactIntegration, RuntimeFlags } from "./state";
 
 /** Detect @capyup/pi-auto-compact via public getCommands API (SPEC §16.4). */
 export function detectPiAutoCompact(pi: ExtensionAPI): boolean {
@@ -11,3 +16,12 @@ export function detectAndCachePiAutoCompact(pi: ExtensionAPI, runtime: RuntimeFl
 	runtime.autoCompactDetected = detectPiAutoCompact(pi);
 	return runtime.autoCompactDetected;
 }
+
+/** Resolve re-inject delivery mode from settings, detect cache, and session override (SPEC §6.5.3). */
+export function resolveDeliveryMode(
+	settings: SkillReinjectSettings,
+	runtime: RuntimeFlags,
+	sessionIntegrationOverride?: AutoCompactIntegration | null,
+): ReinjectDeliveryMode {
+	return effectiveIntegration(settings, runtime.autoCompactDetected, sessionIntegrationOverride);
+}