diff --git a/agentdescent/integrations/__init__.py b/agentdescent/integrations/__init__.py
index 76616152..614ab20b 100644
--- a/agentdescent/integrations/__init__.py
+++ b/agentdescent/integrations/__init__.py
@@ -1810,6 +1810,21 @@ def _uninstall_opencode_file(path: str, e: _Eraser) -> None:
 }
 
 
+def _empty_uninstall_note(host: str) -> str:
+    """Line printed when uninstall finds none of this package's files.
+
+    Claude Code and Codex can also be wired through the host's own
+    marketplace (``/plugin install``, ``codex plugin add``), which leaves
+    nothing here. Grok Bot, dsh and OpenCode are only installed by
+    ``agentdescent install`` (#890).
+    """
+    msg = f"nothing to remove: agentdescent is not installed for {host}"
+    if host in ("claude-code", "codex"):
+        msg += (" (files from the host's own marketplace are removed "
+                "with its plugin command)")
+    return msg
+
+
 def uninstall(host: str, *, dry_run: bool = False, home: Optional[str] = None) -> List[str]:
     """Undo ``install(host)``. Returns the lines to print: what was removed or kept.
 
@@ -1817,9 +1832,11 @@ def uninstall(host: str, *, dry_run: bool = False, home: Optional[str] = None) -
     host's config. A config entry that is no longer exactly what ``install``
     writes -- you edited the launcher, or wrote it yourself -- is kept and
     reported, and a config file with comments (OpenCode's ``opencode.jsonc``) is
-    never rewritten. The run store under ``~/.agentdescent`` is untouched. An
-    install made through the host's own marketplace is removed with that host's
-    plugin command. ``dry_run`` reports without changing anything.
+    never rewritten. The run store under ``~/.agentdescent`` is untouched.
+    Claude Code and Codex can also be wired through the host's own marketplace,
+    which leaves no files here; those hosts' empty-state note points at the
+    host's plugin command. Grok Bot, dsh and OpenCode are only installed by
+    ``agentdescent install``. ``dry_run`` reports without changing anything.
     """
     host = canonical_host(host)
     if host not in HOSTS:
@@ -1828,6 +1845,5 @@ def uninstall(host: str, *, dry_run: bool = False, home: Optional[str] = None) -
     e = _Eraser(dry_run, honour_env=honour_env)
     _UNINSTALL[host](home, e)
     if not e.lines:
-        e.note(f"nothing to remove: agentdescent is not installed for {host} "
-               "(files from the host's own marketplace are removed with its plugin command)")
+        e.note(_empty_uninstall_note(host))
     return e.lines
diff --git a/changelog.d/890-uninstall-marketplace-hint.md b/changelog.d/890-uninstall-marketplace-hint.md
new file mode 100644
index 00000000..9e32cc1a
--- /dev/null
+++ b/changelog.d/890-uninstall-marketplace-hint.md
@@ -0,0 +1,4 @@
+Fixed
+`uninstall` no longer tells grok-bot, dsh, or OpenCode users to remove files
+via a host marketplace those hosts do not have. The marketplace aside stays
+only for Claude Code and Codex, which can be installed that way (#890).
diff --git a/tests/test_uninstall.py b/tests/test_uninstall.py
index 018b88ac..32da4a1b 100644
--- a/tests/test_uninstall.py
+++ b/tests/test_uninstall.py
@@ -299,6 +299,26 @@ def test_opencode_keeps_the_other_servers_and_settings(tmp_path):
     assert after["theme"] == "dark"
 
 
+def test_empty_uninstall_omits_marketplace_for_file_only_hosts(tmp_path):
+    """#890: grok-bot / dsh / opencode are not installed via a host marketplace."""
+    for host in ("grok-bot", "dsh", "opencode"):
+        lines = uninstall(host, home=str(tmp_path))
+        assert lines == [
+            f"nothing to remove: agentdescent is not installed for {host}"
+        ], lines
+
+
+def test_empty_uninstall_mentions_marketplace_for_claude_code_and_codex(tmp_path):
+    """#890: those two hosts really can be wired through a marketplace."""
+    for host in ("claude-code", "codex"):
+        lines = uninstall(host, home=str(tmp_path))
+        assert len(lines) == 1, lines
+        assert lines[0].startswith(
+            f"nothing to remove: agentdescent is not installed for {host}")
+        assert "marketplace" in lines[0]
+        assert "plugin command" in lines[0]
+
+
 # -- the CLI ----------------------------------------------------------------------
 
 
@@ -329,6 +349,21 @@ def test_cli_uninstall_rejects_an_unknown_host():
         cli.main(["uninstall", "vim"])
 
 
+def test_cli_empty_uninstall_grok_bot_omits_marketplace(tmp_path, capsys):
+    """#890: the user-facing grok-bot empty state has no marketplace aside."""
+    home = str(tmp_path)
+    assert cli.main(["uninstall", "grok-bot", "--home", home]) == 0
+    out = capsys.readouterr().out
+    assert "nothing to remove: agentdescent is not installed for grok-bot" in out
+    assert "marketplace" not in out
+    assert cli.main(["uninstall", "grok-bot", "--home", home, "--json"]) == 0
+    payload = json.loads(capsys.readouterr().out)
+    assert payload["ok"] is True
+    assert payload["lines"] == [
+        "nothing to remove: agentdescent is not installed for grok-bot"
+    ]
+
+
 def test_opencode_uninstall_undoes_the_opencode_json_fallback(tmp_path):
     """#516: install beside a commented opencode.jsonc, then uninstall: the
     commented file is byte for byte the same and opencode.json is gone again."""