diff --git a/py3plex/cli.py b/py3plex/cli.py
index f5b00b45..b7d7adb4 100644
--- a/py3plex/cli.py
+++ b/py3plex/cli.py
@@ -399,7 +399,12 @@ def create_parser() -> argparse.ArgumentParser:
 
     parser.add_argument("--version", action="version", version=f"py3plex {__version__}")
 
-    subparsers = parser.add_subparsers(dest="command", help="Available commands")
+    subparsers = parser.add_subparsers(
+        dest="command",
+        title="commands",
+        metavar="COMMAND",
+        help="Available commands (run 'py3plex COMMAND --help' for details)",
+    )
 
     # HELP command
     subparsers.add_parser("help", help="Show detailed help information about py3plex")
@@ -438,7 +443,7 @@ def create_parser() -> argparse.ArgumentParser:
         "--type",
         choices=["random", "er", "ba", "ws"],
         default="random",
-        help="Network type - Possible values: 'random' (random network, default), 'er' (Erdős-Rényi), 'ba' (Barabási-Albert preferential attachment), 'ws' (Watts-Strogatz small-world)",
+        help="Network model (default: random): random (random multilayer), er (Erdős-Rényi), ba (Barabási-Albert), ws (Watts-Strogatz)",
     )
     create_parser.add_argument(
         "--probability",
@@ -460,7 +465,7 @@ def create_parser() -> argparse.ArgumentParser:
     load_parser = subparsers.add_parser(
         "load", help="Load and inspect a multilayer network (use '-' for stdin)"
     )
-    load_parser.add_argument("input", help="Input network file (use '-' to read from stdin)")
+    load_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     load_parser.add_argument(
         "--info", action="store_true", help="Display network information"
     )
@@ -470,6 +475,7 @@ def create_parser() -> argparse.ArgumentParser:
     load_parser.add_argument("--output", "-o", help="Save output to file (JSON format)")
     load_parser.add_argument(
         "--input-format",
+        dest="input_format",
         choices=["auto", "multiedgelist", "edgelist", "json"],
         default="auto",
         help="Input format for stdin data (default: auto-detect)",
@@ -479,13 +485,13 @@ def create_parser() -> argparse.ArgumentParser:
     community_parser = subparsers.add_parser(
         "community", help="Detect communities in the network"
     )
-    community_parser.add_argument("input", help="Input network file")
+    community_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     community_parser.add_argument(
         "--algorithm",
         "-a",
         choices=["louvain", "infomap", "label_prop"],
         default="louvain",
-        help="Community detection algorithm - Possible values: 'louvain' (Louvain method, default), 'infomap' (Infomap algorithm), 'label_prop' (Label propagation)",
+        help="Community detection algorithm (default: louvain): louvain, infomap, or label_prop (label propagation)",
     )
     community_parser.add_argument(
         "--output", "-o", help="Output file for community assignments (JSON)"
@@ -501,13 +507,13 @@ def create_parser() -> argparse.ArgumentParser:
     centrality_parser = subparsers.add_parser(
         "centrality", help="Compute node centrality measures"
     )
-    centrality_parser.add_argument("input", help="Input network file")
+    centrality_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     centrality_parser.add_argument(
         "--measure",
         "-m",
         choices=["degree", "betweenness", "closeness", "eigenvector", "pagerank"],
         default="degree",
-        help="Centrality measure - Possible values: 'degree' (degree centrality, default), 'betweenness' (betweenness centrality), 'closeness' (closeness centrality), 'eigenvector' (eigenvector centrality), 'pagerank' (PageRank)",
+        help="Centrality measure (default: degree): degree, betweenness, closeness, eigenvector, or pagerank",
     )
     centrality_parser.add_argument(
         "--output", "-o", help="Output file for centrality scores (JSON)"
@@ -518,7 +524,7 @@ def create_parser() -> argparse.ArgumentParser:
     stats_parser = subparsers.add_parser(
         "stats", help="Compute multilayer network statistics"
     )
-    stats_parser.add_argument("input", help="Input network file")
+    stats_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     stats_parser.add_argument(
         "--measure",
         "-m",
@@ -532,7 +538,7 @@ def create_parser() -> argparse.ArgumentParser:
             "edge_overlap",
         ],
         default="all",
-        help="Statistic to compute - Possible values: 'all' (compute all statistics, default), 'density' (network density), 'clustering' (clustering coefficient), 'layer_density' (density per layer), 'node_activity' (node activity across layers), 'versatility' (versatility centrality), 'edge_overlap' (edge overlap between layers)",
+        help="Statistic (default: all): all, density, clustering, layer_density, node_activity, versatility, or edge_overlap",
     )
     stats_parser.add_argument(
         "--layer", help="Specific layer for layer-specific statistics"
@@ -545,7 +551,7 @@ def create_parser() -> argparse.ArgumentParser:
     viz_parser = subparsers.add_parser(
         "visualize", help="Visualize the multilayer network"
     )
-    viz_parser.add_argument("input", help="Input network file")
+    viz_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     viz_parser.add_argument(
         "--output",
         "-o",
@@ -556,7 +562,7 @@ def create_parser() -> argparse.ArgumentParser:
         "--layout",
         choices=["spring", "circular", "kamada_kawai", "multilayer"],
         default="multilayer",
-        help="Layout algorithm - Possible values: 'spring' (force-directed spring layout), 'circular' (circular layout), 'kamada_kawai' (Kamada-Kawai force layout), 'multilayer' (specialized multilayer layout, default)",
+        help="Layout algorithm (default: multilayer): spring, circular, kamada_kawai, or multilayer",
     )
     viz_parser.add_argument(
         "--width", type=int, default=12, help="Figure width in inches (default: 12)"
@@ -569,12 +575,12 @@ def create_parser() -> argparse.ArgumentParser:
     aggregate_parser = subparsers.add_parser(
         "aggregate", help="Aggregate multilayer network into single layer"
     )
-    aggregate_parser.add_argument("input", help="Input network file")
+    aggregate_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     aggregate_parser.add_argument(
         "--method",
         choices=["sum", "mean", "max", "min"],
         default="sum",
-        help="Aggregation method for edge weights - Possible values: 'sum' (sum weights, default), 'mean' (average weights), 'max' (maximum weight), 'min' (minimum weight)",
+        help="Aggregation method (default: sum): sum, mean, max, or min",
     )
     aggregate_parser.add_argument(
         "--output", "-o", required=True, help="Output file for aggregated network"
@@ -584,7 +590,7 @@ def create_parser() -> argparse.ArgumentParser:
     convert_parser = subparsers.add_parser(
         "convert", help="Convert network between different formats"
     )
-    convert_parser.add_argument("input", help="Input network file")
+    convert_parser.add_argument("input", help="Input network file (use '-' for stdin)")
     convert_parser.add_argument(
         "--output",
         "-o",
@@ -629,7 +635,7 @@ def create_parser() -> argparse.ArgumentParser:
     )
     query_parser.add_argument(
         "input",
-        help="Input network file (use '-' to read from stdin)",
+        help="Input network file (use '-' for stdin)",
     )
     query_parser.add_argument(
         "query",
@@ -652,6 +658,7 @@ def create_parser() -> argparse.ArgumentParser:
     )
     query_parser.add_argument(
         "--input-format",
+        dest="input_format",
         choices=["auto", "multiedgelist", "edgelist", "json"],
         default="auto",
         help="Input format for stdin data (default: auto-detect)",
diff --git a/tests/test_cli_ergonomics.py b/tests/test_cli_ergonomics.py
index f8f8951c..bc898b38 100644
--- a/tests/test_cli_ergonomics.py
+++ b/tests/test_cli_ergonomics.py
@@ -255,3 +255,22 @@ def test_create_help_mentions_edgelist(self, capsys):
         
         # Check that edgelist is mentioned as a recommended format
         assert "edgelist" in help_text.lower() or ".txt" in help_text.lower()
+
+    def test_help_text_without_redundant_possible_values(self, capsys):
+        """Test that help text avoids redundant 'Possible values' phrasing."""
+        with pytest.raises(SystemExit):
+            cli.main(["create", "--help"])
+
+        captured = capsys.readouterr()
+        help_text = captured.out
+        assert "Possible values:" not in help_text
+
+    def test_file_input_commands_document_stdin(self, capsys):
+        """Test that file-input commands consistently document stdin support."""
+        commands = ["load", "community", "centrality", "stats", "visualize", "aggregate", "convert", "query"]
+        for command in commands:
+            with pytest.raises(SystemExit):
+                cli.main([command, "--help"])
+            captured = capsys.readouterr()
+            help_text = captured.out
+            assert "Input network file (use '-' for stdin)" in help_text