Prefer xiaohe ensure-agent hints and support non-interactive yes installs.

Install scripts and product CLI can install the default backend without a picker,
and skip messages point at xiaohe when it is on PATH.

myagents/commands/ensure_agent.py

@@ -25,12 +25,14 @@ def installable_backends() -> list[str]:
 def run_ensure_agents(
     *,
     prefer: list[str] | None = None,
+    yes: bool = False,
 ) -> list[str]:
     """Show status, let user pick missing CLIs, install them.
 
     ``prefer``: when interactive, Enter defaults to these names (intersected
     with missing) instead of all missing — used by xiaohe for its default
-    agent. Returns backends that remain missing afterwards.
+    agent. ``yes``: skip the picker and install prefer (or all missing).
+    Returns backends that remain missing afterwards.
     """
     targets = installable_backends()
     if not targets:
@@ -66,7 +68,8 @@ def run_ensure_agents(
         console.print("[green]All installable agent CLIs ready.[/green]")
         return []
 
-    if not _is_interactive():
+    interactive = _is_interactive() and not yes
+    if not interactive:
         to_install = (
             [n for n in (prefer or []) if n in missing] or list(missing)
         )
@@ -140,12 +143,20 @@ def run_ensure_agents(
     still = [n for n in missing if n not in to_install or n in failed]
     if failed:
         console.print()
+        hint = (
+            "xiaohe ensure-agent"
+            if __import__("shutil").which("xiaohe")
+            else "myagents ensure-agent"
+        )
         console.print(
             "[yellow]Some installs failed.[/yellow] Install Node.js if needed, "
-            "then re-run [cyan]myagents ensure-agent[/cyan]."
+            f"then: [cyan]{hint}[/cyan]."
         )
     elif not still:
         console.print("[green]Selected agent CLIs ready.[/green]")
+        if __import__("shutil").which("xiaohe"):
+            console.print("  Next: [cyan]xiaohe[/cyan]")
+        else:
             console.print(
                 "  Launch: [cyan]myclaude[/cyan] / [cyan]mycodex[/cyan] / …"
             )

myagents/launcher.py

@@ -393,6 +393,15 @@ def _exec_tmux(backend: str, chat_cwd: Path, cmd: list[str]) -> None:
     raise SystemExit(proc.returncode)
 
 
+def _ensure_agent_hint() -> str:
+    """Prefer product-facing xiaohe when installed; else myagents."""
+    return (
+        "xiaohe ensure-agent"
+        if shutil.which("xiaohe")
+        else "myagents ensure-agent"
+    )
+
+
 def _run_install(config: dict) -> str | None:
     """Run ``install_cmd`` and return the resolved binary path, or None."""
     install_cmd = config.get("install_cmd")
@@ -400,12 +409,12 @@ def _run_install(config: dict) -> str | None:
         return None
     installer = shutil.which(install_cmd[0])
     if not installer:
+        hint = _ensure_agent_hint()
         stderr_console.print(
             f"[red]{install_cmd[0]} not found[/red] — cannot auto-install "
             f"{config['binary']}.\n"
-            "  Install Node.js (e.g. [cyan]brew install node[/cyan]), then run "
+            "  Run: [cyan]brew install node[/cyan] (or install Node.js), then "
-            "[cyan]myagents ensure-agent[/cyan] or launch "
+            f"[cyan]{hint}[/cyan]."
-            f"[cyan]my{config.get('binary', 'claude')}[/cyan]."
         )
         return None
     stderr_console.print(
@@ -417,10 +426,10 @@ def _run_install(config: dict) -> str | None:
     )
     proc = subprocess.run([installer, *install_cmd[1:]], check=False)
     if proc.returncode != 0:
+        hint = _ensure_agent_hint()
         stderr_console.print(
             f"[red]Install failed (exit {proc.returncode}).[/red]\n"
-            "  Fix the error above, then run "
+            f"  Run: [cyan]{hint}[/cyan]."
-            "[cyan]myagents ensure-agent[/cyan]."
         )
         return None
     # Refresh PATH for this process; offer to persist npm bin into shell rc.
@@ -460,9 +469,9 @@ def _offer_install(config: dict, *, yes: bool | None = None) -> str | None:
         except (click.Abort, EOFError):
             return None
         if answer.strip().lower() not in ("y", "yes", ""):
+            hint = _ensure_agent_hint()
             stderr_console.print(
-                "[dim]Skipped.[/dim] Later: [cyan]myagents ensure-agent[/cyan] "
+                f"[dim]Skipped. Later:[/dim] [cyan]{hint}[/cyan]"
-                "or launch again (e.g. [cyan]myclaude[/cyan])."
             )
             return None
     return _run_install(config)