diff --git a/fix-3962-tsconfig-imports-4 b/fix-3962-tsconfig-imports-4
new file mode 160000
index 0000000000..f355f51c35
--- /dev/null
+++ b/fix-3962-tsconfig-imports-4
@@ -0,0 +1 @@
+Subproject commit f355f51c35f1dc6dbfe7e81044190e13372a37dc
diff --git a/otto-cli/b0156-profile-ts-test-2026-05-16 b/otto-cli/b0156-profile-ts-test-2026-05-16
new file mode 160000
index 0000000000..f355f51c35
--- /dev/null
+++ b/otto-cli/b0156-profile-ts-test-2026-05-16
@@ -0,0 +1 @@
+Subproject commit f355f51c35f1dc6dbfe7e81044190e13372a37dc
diff --git a/tools/profile.test.ts b/tools/profile.test.ts
new file mode 100644
index 0000000000..6fa5dc0d6d
--- /dev/null
+++ b/tools/profile.test.ts
@@ -0,0 +1,93 @@
+// profile.test.ts — smoke tests for the DBSP profiling helper CLI.
+//
+// Scope: VALIDATES CLI DISPATCH AND ARG-PARSING, NOT external tool
+// invocations. The `counters` / `trace` / `gcdump` / `bench` /
+// `coverage` / `install` branches shell out to `dotnet-counters`,
+// `dotnet-trace`, etc., which are not guaranteed to be installed
+// on every developer machine or CI runner. This suite covers only
+// the help / unknown-command / missing-arg paths that exit early
+// before any external process is launched.
+//
+// Closes one acceptance bullet for B-0156: "Each TS sibling has at
+// least one `bun test` covering its primary entry path."
+
+import { describe, expect, test } from "bun:test";
+import { spawnSync } from "node:child_process";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const PROFILE_TS = resolve(
+  dirname(fileURLToPath(import.meta.url)),
+  "profile.ts",
+);
+
+function runProfile(args: readonly string[]): {
+  status: number;
+  stdout: string;
+  stderr: string;
+} {
+  const result = spawnSync("bun", [PROFILE_TS, ...args], {
+    encoding: "utf8",
+    timeout: 10_000,
+  });
+  return {
+    status: result.status ?? -1,
+    stdout: result.stdout ?? "",
+    stderr: result.stderr ?? "",
+  };
+}
+
+describe("tools/profile.ts CLI dispatch", () => {
+  test("no args prints help and exits 0", () => {
+    const result = runProfile([]);
+    expect(result.status).toBe(0);
+    expect(result.stdout).toContain("DBSP profiling helper");
+  });
+
+  test("--help exits 0 and prints help text", () => {
+    const result = runProfile(["--help"]);
+    expect(result.status).toBe(0);
+    expect(result.stdout).toContain("DBSP profiling helper");
+  });
+
+  test("-h exits 0 and prints help text", () => {
+    const result = runProfile(["-h"]);
+    expect(result.status).toBe(0);
+    expect(result.stdout).toContain("DBSP profiling helper");
+  });
+
+  test("help lists all canonical subcommands", () => {
+    const result = runProfile(["--help"]);
+    expect(result.status).toBe(0);
+    for (const cmd of ["install", "counters", "trace", "gcdump", "bench", "coverage"]) {
+      expect(result.stdout).toContain(cmd);
+    }
+  });
+
+  test("unknown command exits 64 (EX_USAGE) and prints help", () => {
+    const result = runProfile(["not-a-real-command"]);
+    expect(result.status).toBe(64);
+    expect(result.stdout).toContain("DBSP profiling helper");
+  });
+
+  test("counters without pid exits 64 with usage on stderr", () => {
+    const result = runProfile(["counters"]);
+    expect(result.status).toBe(64);
+    expect(result.stderr).toContain("usage:");
+    expect(result.stderr).toContain("counters");
+  });
+
+  test("trace without pid exits 64 with usage on stderr", () => {
+    const result = runProfile(["trace"]);
+    expect(result.status).toBe(64);
+    expect(result.stderr).toContain("usage:");
+    expect(result.stderr).toContain("trace");
+  });
+
+  test("gcdump without pid exits 64 with usage on stderr", () => {
+    const result = runProfile(["gcdump"]);
+    expect(result.status).toBe(64);
+    expect(result.stderr).toContain("usage:");
+    expect(result.stderr).toContain("gcdump");
+  });
+});
diff --git a/tsconfig.json b/tsconfig.json
index 3870b40455..3469657630 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -19,7 +19,7 @@
     "isolatedModules": true,
     "moduleDetection": "force",
     "skipLibCheck": true,
-    "types": ["bun"]
+    "types": ["bun", "bun-types"]
   },
   "include": ["**/*.ts"],
   "exclude": [
diff --git a/zeta-lior-preserve-4649 b/zeta-lior-preserve-4649
new file mode 160000
index 0000000000..385ab1ffb4
--- /dev/null
+++ b/zeta-lior-preserve-4649
@@ -0,0 +1 @@
+Subproject commit 385ab1ffb44e43af7bd564d090f28170e789717d
diff --git a/zeta-lior-preserve-4650 b/zeta-lior-preserve-4650
new file mode 160000
index 0000000000..92510d6f24
--- /dev/null
+++ b/zeta-lior-preserve-4650
@@ -0,0 +1 @@
+Subproject commit 92510d6f24b443cf1e341a556dd8fdc69893c193
diff --git a/zeta-lior-preserve-4651 b/zeta-lior-preserve-4651
new file mode 160000
index 0000000000..99d831dd10
--- /dev/null
+++ b/zeta-lior-preserve-4651
@@ -0,0 +1 @@
+Subproject commit 99d831dd10f1d04526572e041517acf6afd1fc47
diff --git a/zeta-lior-preserve-4652 b/zeta-lior-preserve-4652
new file mode 160000
index 0000000000..b3605731dc
--- /dev/null
+++ b/zeta-lior-preserve-4652
@@ -0,0 +1 @@
+Subproject commit b3605731dc57d9a9db93a5919488533a16870dbb