diff --git a/apps/cli/package.json b/apps/cli/package.json
index b3aefad..7a2e325 100644
--- a/apps/cli/package.json
+++ b/apps/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "claudemesh-cli",
-  "version": "1.19.0",
+  "version": "1.19.1",
   "description": "Peer mesh for Claude Code sessions — CLI + MCP server.",
   "keywords": [
     "claude-code",
diff --git a/apps/cli/src/services/api/my.ts b/apps/cli/src/services/api/my.ts
index f93a04b..c6afc1a 100644
--- a/apps/cli/src/services/api/my.ts
+++ b/apps/cli/src/services/api/my.ts
@@ -20,8 +20,11 @@ export async function createMesh(
 }
 
 export async function renameMesh(token: string, slug: string, newName: string) {
+  // Routed through /api/cli/* (not /api/my/*) because the CLI JWT
+  // can't authenticate against the better-auth-protected myRouter.
+  // The /api/cli/meshes/:slug route validates the JWT inline.
   return request<{ slug: string; name: string }>({
-    path: `/api/my/meshes/${slug}`,
+    path: `/api/cli/meshes/${slug}`,
     method: "PATCH",
     body: { name: newName },
     token,
diff --git a/apps/web/src/app/api/cli/meshes/[slug]/route.ts b/apps/web/src/app/api/cli/meshes/[slug]/route.ts
new file mode 100644
index 0000000..a247cc8
--- /dev/null
+++ b/apps/web/src/app/api/cli/meshes/[slug]/route.ts
@@ -0,0 +1,111 @@
+import { NextResponse } from "next/server";
+import { eq, and } from "drizzle-orm";
+
+import { db } from "@turbostarter/db/server";
+import { mesh } from "@turbostarter/db/schema/mesh";
+
+/**
+ * `PATCH /api/cli/meshes/:slug` — rename a mesh from the CLI.
+ *
+ * The `myRouter` (Hono) at `/api/my/meshes/*` runs `enforceAuth`, which
+ * calls `auth.api.getSession()` — that only honours better-auth cookies.
+ * The CLI's JWT (issued by `/api/auth/cli/device-code/[code]/approve`)
+ * is a custom HS256 token signed with `CLI_SYNC_SECRET`, so it can't
+ * authenticate against `/api/my/*`. Until better-auth gets a bearer
+ * plugin wired up, CLI-only mutations live under `/api/cli/*` and
+ * validate the JWT inline — same pattern as `/api/cli-sync-token`.
+ */
+
+interface CliJwtPayload {
+  sub: string;
+  email?: string;
+  type?: string;
+  exp?: number;
+}
+
+function base64UrlDecode(input: string): Uint8Array {
+  const pad = input.length % 4 === 0 ? "" : "=".repeat(4 - (input.length % 4));
+  const b64 = (input + pad).replace(/-/g, "+").replace(/_/g, "/");
+  const bin = atob(b64);
+  const bytes = new Uint8Array(bin.length);
+  for (let i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i);
+  return bytes;
+}
+
+async function verifyCliJwt(token: string, secret: string): Promise<CliJwtPayload | null> {
+  const parts = token.split(".");
+  if (parts.length !== 3) return null;
+  const [headerB64, payloadB64, sigB64] = parts;
+  const encoder = new TextEncoder();
+  const key = await crypto.subtle.importKey(
+    "raw",
+    encoder.encode(secret),
+    { name: "HMAC", hash: "SHA-256" },
+    false,
+    ["verify"],
+  );
+  const ok = await crypto.subtle.verify(
+    "HMAC",
+    key,
+    base64UrlDecode(sigB64!),
+    encoder.encode(`${headerB64}.${payloadB64}`),
+  );
+  if (!ok) return null;
+  try {
+    const payload = JSON.parse(new TextDecoder().decode(base64UrlDecode(payloadB64!))) as CliJwtPayload;
+    if (payload.exp && Date.now() / 1000 > payload.exp) return null;
+    return payload;
+  } catch {
+    return null;
+  }
+}
+
+export async function PATCH(
+  request: Request,
+  { params }: { params: Promise<{ slug: string }> },
+) {
+  const auth = request.headers.get("authorization");
+  if (!auth?.startsWith("Bearer ")) {
+    return NextResponse.json({ error: "missing bearer token" }, { status: 401 });
+  }
+  const token = auth.slice("Bearer ".length).trim();
+  const secret = process.env.CLI_SYNC_SECRET;
+  if (!secret) {
+    return NextResponse.json({ error: "server not configured" }, { status: 500 });
+  }
+  const payload = await verifyCliJwt(token, secret);
+  if (!payload) {
+    return NextResponse.json({ error: "invalid or expired token" }, { status: 401 });
+  }
+
+  const { slug } = await params;
+  let body: { name?: string };
+  try {
+    body = (await request.json()) as { name?: string };
+  } catch {
+    return NextResponse.json({ error: "invalid JSON body" }, { status: 400 });
+  }
+  const newName = body.name?.trim();
+  if (!newName) {
+    return NextResponse.json({ error: "name is required" }, { status: 400 });
+  }
+  if (newName.length > 80) {
+    return NextResponse.json({ error: "name too long (max 80 chars)" }, { status: 400 });
+  }
+
+  // Only the owner can rename. The slug is the public identifier; we
+  // match (slug, ownerUserId) to scope the update.
+  const [updated] = await db
+    .update(mesh)
+    .set({ name: newName })
+    .where(and(eq(mesh.slug, slug), eq(mesh.ownerUserId, payload.sub)))
+    .returning({ slug: mesh.slug, name: mesh.name });
+
+  if (!updated) {
+    return NextResponse.json(
+      { error: "mesh not found or you are not the owner" },
+      { status: 404 },
+    );
+  }
+  return NextResponse.json(updated);
+}
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 899171c..977ccaa 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -298,6 +298,17 @@ level, or wire claudemesh to messaging surfaces beyond Claude Code.
   default returns last 30d). CLI: omitting `--mesh` on each
   verb routes through the matching aggregator. *Shipped
   2026-05-03 in CLI v1.16.0.*
+- **v0.6.1 — `claudemesh rename` actually works** — adds the
+  missing endpoint `PATCH /api/cli/meshes/:slug` on the web app.
+  Lives under `/api/cli/*` (not `/api/my/*`) because the CLI's
+  device-code JWT is signed with `CLI_SYNC_SECRET` and can't
+  authenticate against better-auth's `enforceAuth` middleware —
+  the new route validates the JWT inline using the same HMAC-SHA256
+  pattern as `/api/cli-sync-token`. Owner-only (matches on
+  `mesh.slug` AND `mesh.ownerUserId`). CLI calls the new path
+  instead of the old `/api/my/meshes/:slug`. Closes the
+  "API error 401: Unauthorized" the user hit after a successful
+  `claudemesh login`. *Shipped 2026-05-03 in CLI v1.19.1 + web.*
 - **v0.6.0 — `claudemesh file share / get` + same-host fast path** —
   CLI parity for the file-sharing surface that was already on the
   broker side (HTTP `/upload`, WS `get_file` / `list_files`) but