fix(cli): point saved-result hint at real cost command (#538)

src/synth_panel/cli/commands.py

@@ -6167,9 +6167,12 @@ def _print_saved_result_hint(result_id: str) -> None:
     """
     print(f"Result saved: {result_id}", file=sys.stderr)
     print("Next:", file=sys.stderr)
-    print(f"  synthpanel report {result_id}          # full Markdown report", file=sys.stderr)
+    print(f"  synthpanel report {result_id}          # full Markdown report (incl. cost rollup)", file=sys.stderr)
     print(f"  synthpanel results show {result_id}    # raw saved result", file=sys.stderr)
     print("  synthpanel results list                # all saved results", file=sys.stderr)
+    # #538: there is no per-result `cost <id>` command — the per-run cost
+    # rollup lives in `report` above. `cost summary` aggregates across runs.
+    print("  synthpanel cost summary                # cost rollup across saved runs", file=sys.stderr)
 
 
 def handle_runs_prune(args: argparse.Namespace, fmt: OutputFormat) -> int:

tests/test_results_discovery.py

@@ -140,3 +140,22 @@ def test_empty_runs_list_hints_results_store(self, capsys, tmp_path):
         out = capsys.readouterr().out
         assert code == 0
         assert "synthpanel results list" in out
+
+
+class TestSavedResultHintCommands:
+    """The saved-result "Next:" block must only suggest real commands (#538)."""
+
+    def test_hint_suggests_real_commands_not_per_result_cost(self, capsys):
+        from synth_panel.cli.commands import _print_saved_result_hint
+
+        _print_saved_result_hint("result-abc123")
+        err = capsys.readouterr().err
+
+        # Real, existing commands are surfaced.
+        assert "synthpanel report result-abc123" in err
+        assert "synthpanel results show result-abc123" in err
+        assert "synthpanel results list" in err
+        # The per-run cost rollup is reachable via the real `cost summary`
+        # subcommand, not a nonexistent per-result `cost <id>` command.
+        assert "synthpanel cost summary" in err
+        assert "cost result-abc123" not in err