feat(cli): add a version subcommand and document the --filter JSON shape (#6907)

cli/node/src/help.ts

@@ -36,7 +36,16 @@ const COMMAND_GROUPS: { panel: string; commands: string[] }[] = [
 	},
 	{
 		panel: "Management",
-		commands: ["init", "status", "import", "help", "entity", "event", "config"],
+		commands: [
+			"init",
+			"status",
+			"version",
+			"import",
+			"help",
+			"entity",
+			"event",
+			"config",
+		],
 	},
 ];
 

cli/node/src/index.ts

@@ -95,6 +95,10 @@ async function getBackendOnly(
 	return (await getBackendAndConfig(apiKey, baseUrl)).backend;
 }
 
+function printVersion(): void {
+	console.log(`  ${colors.brand("◆ Mem0")} CLI v${CLI_VERSION}`);
+}
+
 function checkAgentMode(): boolean {
 	const rootOpts = program.opts();
 	const isAgent = !!(rootOpts.json || rootOpts.agent);
@@ -154,7 +158,7 @@ program
 	.enablePositionalOptions()
 	.option("--version", "Show version and exit.")
 	.on("option:version", () => {
-		console.log(`  ${colors.brand("◆ Mem0")} CLI v${CLI_VERSION}`);
+		printVersion();
 		process.exit(0);
 	})
 	.option("--json", "Output as JSON for agent/programmatic use.")
@@ -387,7 +391,10 @@ program
 	)
 	.option("--rerank", "Enable reranking (Platform only).", false)
 	.option("--keyword", "Use keyword search.", false)
-	.option("--filter <json>", "Advanced filter expression (JSON).")
+	.option(
+		"--filter <json>",
+		'Advanced filter as JSON: {"AND": [...]} or {"OR": [...]}, e.g. {"AND": [{"categories": {"in": ["work"]}}]}.',
+	)
 	.option("--fields <list>", "Specific fields to return (comma-separated).")
 	.option("--show-expired", "Include expired memories.", false)
 	.option(
@@ -404,7 +411,7 @@ program
 	.option("--base-url <url>", "Override API base URL.")
 	.addHelpText(
 		"after",
-		'\nExamples:\n  $ mem0 search "preferences" --user-id alice\n  $ mem0 search "tools" -u alice -o json -k 5\n  $ echo "preferences" | mem0 search -u alice',
+		'\nExamples:\n  $ mem0 search "preferences" --user-id alice\n  $ mem0 search "tools" -u alice -o json -k 5\n  $ echo "preferences" | mem0 search -u alice\n  $ mem0 search "invoices" -u alice --filter \'{"AND": [{"categories": {"in": ["work"]}}]}\'',
 	)
 	.action(async (query, opts) => {
 		let resolvedQuery = query;
@@ -823,6 +830,13 @@ program
 		});
 	});
 
+program
+	.command("version")
+	.description("Show version and exit.")
+	.action(() => {
+		printVersion();
+	});
+
 program
 	.command("import <filePath>")
 	.description("Import memories from a JSON file.")

cli/node/tests/cli-integration.test.ts

@@ -44,11 +44,17 @@ describe("CLI Integration — help and version", () => {
     expect(result.stdout).toContain("search");
   });
 
-  it("prints the version with --version, and has no version subcommand", () => {
+  it("prints the version with --version", () => {
     const flag = run(["--version"]);
     expect(flag.exitCode).toBe(0);
     expect(flag.stdout).toContain("Mem0");
-    expect(run(["version"]).exitCode).not.toBe(0);
+  });
+
+  it("version subcommand output matches --version output byte-for-byte", () => {
+    const flag = run(["--version"]);
+    const cmd = run(["version"]);
+    expect(cmd.exitCode).toBe(0);
+    expect(cmd.stdout).toBe(flag.stdout);
   });
 
   it.each([["help", "--json"], ["--json", "help"], ["--agent", "help"]])(
@@ -129,6 +135,13 @@ describe("CLI Integration — help and version", () => {
     expect(result.stdout).toContain("--rerank");
   });
 
+  it("search help documents the --filter JSON shape with an example", () => {
+    const result = run(["search", "--help"]);
+    expect(result.exitCode).toBe(0);
+    expect(result.stdout).toContain("AND");
+    expect(result.stdout).toContain("categories");
+  });
+
   it("list help has --category flag", () => {
     const result = run(["list", "--help"]);
     expect(result.exitCode).toBe(0);