feat: REPL commands work without the leading slash

src/bach/repl/app.py

@@ -200,7 +200,9 @@ def run(self) -> None:
         # correctly suggests `/project-add` / `/project-init` / `/projects`.
         # Returns None when prompt_toolkit isn't installed — completer
         # kwarg is then silently ignored downstream.
-        main_completer = _build_word_completer(sorted(_HANDLERS.keys()), sentence=True)
+        # Offer both spellings in tab-completion: canonical /cmd and bare cmd.
+        completion_words = sorted({*_HANDLERS.keys(), *(k.lstrip("/") for k in _HANDLERS)})
+        main_completer = _build_word_completer(completion_words, sentence=True)
 
         while not self._should_quit:
             _render_dashboard(self)
@@ -469,14 +471,24 @@ def _format_title_with_hierarchy(task: DailyTask, theme: ThemePalette) -> str:
 
 
 def _dispatch(app: BachRepl, line: str) -> None:
-    """Parse, resolve aliases, run the handler."""
+    """Parse, resolve aliases, run the handler.
+
+    Commands work with or without the leading slash: `sessions bach` is
+    `/sessions bach`. The slashless form is resolved by retrying the
+    lookup with a '/' prefix, so '/' stays the canonical spelling and the
+    handler table never needs duplicate keys.
+    """
     name, *args = line.split(maxsplit=1)
     arg_str = args[0] if args else ""
     canonical = _ALIASES.get(name, name)
     handler = _HANDLERS.get(canonical)
+    if handler is None and not name.startswith("/"):
+        slashed = f"/{name}"
+        canonical = _ALIASES.get(slashed, slashed)
+        handler = _HANDLERS.get(canonical)
     if handler is None:
         t = app.current_theme
-        app.console.print(f"[{t.error}]Unknown:[/{t.error}] {name}  (try /help)")
+        app.console.print(f"[{t.error}]Unknown:[/{t.error}] {name}  (try help)")
         return
     logger.info("event=repl_cmd_start cmd=%s", canonical)
     try:

tests/unit/test_repl_app.py

@@ -1455,3 +1455,38 @@ def test_clear_alias_c_routes_to_clear(
     app.run()
     captured = capsys.readouterr()
     assert "\x1b[H\x1b[2J\x1b[3J" in captured.out
+
+
+# ---------------------------------------------------------------------------
+# Slashless commands — `sessions` works like `/sessions`
+# ---------------------------------------------------------------------------
+
+
+def test_repl_command_works_without_slash(tmp_path: Path) -> None:
+    """Bare `quit` resolves through the same handler table as `/quit`."""
+    registry = _registry_with_project(tmp_path)
+    app = BachRepl(
+        registry,
+        input_fn=_scripted_input(["quit"]),
+    )
+    app.run()  # would hang (or exhaust input) if `quit` weren't dispatched
+
+
+def test_repl_bare_command_with_args(tmp_path: Path) -> None:
+    """Args pass through the slashless path: `help board` == `/help board`."""
+    registry = _registry_with_project(tmp_path)
+    app = BachRepl(
+        registry,
+        input_fn=_scripted_input(["help board", "quit"]),
+    )
+    app.run()  # /help handler runs with 'board'; loop survives to quit
+
+
+def test_repl_bare_unknown_command_still_errors(tmp_path: Path) -> None:
+    """A bare token that matches no command reports Unknown and survives."""
+    registry = _registry_with_project(tmp_path)
+    app = BachRepl(
+        registry,
+        input_fn=_scripted_input(["definitelynotacommand", "quit"]),
+    )
+    app.run()