feat(cli): mem0 identify <name> — post-init agent self-identify

Adds a one-shot subcommand the agent runs when it bootstrapped without
--agent-caller: `mem0 identify claude-code` PATCHes the active key's
agent_caller via /api/v1/auth/agent_mode/caller/, then mirrors the
canonical value into ~/.mem0/config.json.

Bootstrap success message now prompts unidentified agents to run it.
If --agent-caller was passed on init, no prompt (already attributed).

Both runtimes (Python + Node) get the command + the prompt update.

cli/node/src/commands/agent-mode.ts

@@ -110,6 +110,12 @@ export async function bootstrapViaBackend(
 		const claimCmd = envelope.claim_command ?? "mem0 init --email <your-email>";
 		console.log(`  ${dim(`To claim this account later: ${claimCmd}`)}`);
 	}
+
+	if (!agentCaller) {
+		console.log(
+			`  ${dim("If you are an AI agent, identify yourself: `mem0 identify <your-name>` (e.g. claude-code, cursor).")}`,
+		);
+	}
 }
 
 /**

cli/node/src/commands/identify.ts

@@ -0,0 +1,75 @@
+/**
+ * mem0 identify — declare which agent owns the current agent-mode key.
+ *
+ * Used when `mem0 init --agent` ran without --agent-caller, so the backend
+ * saved agent_caller=NULL. The agent re-runs `mem0 identify <name>` to PATCH
+ * its own row with its real identity. Idempotent.
+ */
+
+import { printError, printSuccess } from "../branding.js";
+import { loadConfig, saveConfig } from "../config.js";
+
+const SOURCE_HEADERS = {
+	"X-Mem0-Source": "cli",
+	"X-Mem0-Client-Language": "node",
+} as const;
+
+export async function runIdentify(name: string): Promise<void> {
+	const config = loadConfig();
+	if (!config.platform.apiKey) {
+		printError("No API key configured. Run `mem0 init --agent` first.");
+		process.exit(1);
+	}
+	if (!config.platform.agentMode) {
+		printError("This command only works on unclaimed agent-mode keys.");
+		process.exit(1);
+	}
+
+	const clean = (name ?? "").trim();
+	if (!clean) {
+		printError("Agent name is required.");
+		process.exit(1);
+	}
+
+	const baseUrl = (config.platform.baseUrl || "https://api.mem0.ai").replace(
+		/\/+$/,
+		"",
+	);
+
+	let resp: Response;
+	try {
+		resp = await fetch(`${baseUrl}/api/v1/auth/agent_mode/caller/`, {
+			method: "PATCH",
+			headers: {
+				...SOURCE_HEADERS,
+				Authorization: `Token ${config.platform.apiKey}`,
+				"Content-Type": "application/json",
+			},
+			body: JSON.stringify({ agent_caller: clean }),
+			signal: AbortSignal.timeout(30_000),
+		});
+	} catch (err) {
+		printError(
+			`Network error: ${err instanceof Error ? err.message : String(err)}`,
+		);
+		process.exit(1);
+	}
+
+	if (!resp.ok) {
+		let detail: string = resp.statusText;
+		try {
+			const body = (await resp.json()) as { error?: string };
+			if (body.error) detail = body.error;
+		} catch {
+			/* leave as statusText */
+		}
+		printError(`Identify failed: ${detail}`);
+		process.exit(1);
+	}
+
+	const body = (await resp.json()) as { agent_caller?: string };
+	const canonical = body.agent_caller ?? clean;
+	config.platform.agentCaller = canonical;
+	saveConfig(config);
+	printSuccess(`Identified as ${canonical}.`);
+}

cli/node/src/index.ts

@@ -250,6 +250,18 @@ program
 		});
 	});
 
+// ── Setup: identify (post-bootstrap agent self-tag) ──────────────────────
+
+program
+	.command("identify <name>")
+	.description(
+		"Tag your active Agent Mode key with the AI agent that's using it (e.g. claude-code, cursor).",
+	)
+	.action(async (name: string) => {
+		const { runIdentify } = await import("./commands/identify.js");
+		await runIdentify(name);
+	});
+
 // ── Memory: add ───────────────────────────────────────────────────────────
 
 program