diff --git a/src/commands.ts b/src/commands.ts
new file mode 100644
index 0000000..cfdd473
--- /dev/null
+++ b/src/commands.ts
@@ -0,0 +1,31 @@
+import type { ExtensionAPI, ExtensionCommandContext } from "@earendil-works/pi-coding-agent";
+import type { ExtensionState, RuntimeFlags } from "./state.js";
+
+export interface SkillReinjectCommandDeps {
+	state: ExtensionState;
+	runtime: RuntimeFlags;
+	persistState: () => void;
+}
+
+export function registerSkillReinjectCommand(pi: ExtensionAPI, _deps: SkillReinjectCommandDeps): void {
+	pi.registerCommand("skill-reinject", {
+		description:
+			"Skill re-inject after compaction (usage: /skill-reinject [on|off|list|now|integration ...])",
+		handler: handleSkillReinjectCommand,
+	});
+}
+
+async function handleSkillReinjectCommand(
+	args: string,
+	ctx: ExtensionCommandContext,
+): Promise<void> {
+	const trimmed = args.trim();
+	if (!trimmed) {
+		return;
+	}
+
+	const subcommand = trimmed.split(/\s+/)[0];
+	if (ctx.hasUI) {
+		ctx.ui.notify(`skill-reinject: unknown subcommand "${subcommand}"`, "warning");
+	}
+}
diff --git a/src/index.ts b/src/index.ts
index c7f4051..9cecc7c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,6 +7,7 @@ import {
 	type Skill,
 } from "@earendil-works/pi-coding-agent";
 import { detectAndCachePiAutoCompact, resolveDeliveryMode } from "./auto-compact.js";
+import { registerSkillReinjectCommand } from "./commands.js";
 import {
 	consumeCompactionOnSessionCompact,
 	createCompactionRuntime,
@@ -44,6 +45,8 @@ export default function skillReinject(pi: ExtensionAPI): void {
 		saveState(pi, state);
 	}
 
+	registerSkillReinjectCommand(pi, { state, runtime, persistState });
+
 	function trackSkillAndPersist(input: TrackSkillInput): void {
 		trackSkill(state, input);
 		persistState();