diff --git a/features/steps/tui_persona_export_import_steps.py b/features/steps/tui_persona_export_import_steps.py
new file mode 100644
index 000000000..1f3d59017
--- /dev/null
+++ b/features/steps/tui_persona_export_import_steps.py
@@ -0,0 +1,364 @@
+"""Step definitions for tui_persona_export_import.feature.
+
+Covers persona export/import via:
+- TuiCommandRouter (space-separated and colon-style aliases)
+- PersonaRegistry.export_persona / import_persona
+- CLI commands (agents persona export / agents persona import)
+"""
+
+from __future__ import annotations
+
+import os
+import shutil
+import tempfile
+from pathlib import Path
+from unittest.mock import patch
+
+import yaml
+from behave import given, then, when
+from behave.runner import Context
+
+from cleveragents.tui.commands import TuiCommandRouter
+from cleveragents.tui.persona.registry import PersonaRegistry
+from cleveragents.tui.persona.schema import Persona
+from cleveragents.tui.persona.state import PersonaState
+
+# ---------------------------------------------------------------------------
+# Background
+# ---------------------------------------------------------------------------
+
+
+@given("a temporary persona registry for export/import tests")
+def step_fresh_registry(context: Context) -> None:
+    temp_dir = Path(tempfile.mkdtemp())
+    context.exp_temp_dir = temp_dir
+    context.exp_registry = PersonaRegistry(config_dir=temp_dir)
+    context.exp_registry.ensure_dirs()
+    context.add_cleanup(lambda: shutil.rmtree(str(temp_dir), ignore_errors=True))
+
+
+# ---------------------------------------------------------------------------
+# Shared helpers
+# ---------------------------------------------------------------------------
+
+
+def _make_router(context: Context) -> TuiCommandRouter:
+    """Build a TuiCommandRouter backed by the test registry."""
+    state = PersonaState(registry=context.exp_registry)
+    return TuiCommandRouter(
+        persona_registry=context.exp_registry,
+        persona_state=state,
+    )
+
+
+def _enter_temp_workdir(context: Context) -> Path:
+    """Create a temp working directory and chdir into it."""
+    work_dir = Path(tempfile.mkdtemp())
+    context.add_cleanup(lambda: shutil.rmtree(str(work_dir), ignore_errors=True))
+    original = os.getcwd()
+    os.chdir(str(work_dir))
+    context.add_cleanup(lambda: os.chdir(original))
+    context.exp_work_dir = work_dir
+    return work_dir
+
+
+# ---------------------------------------------------------------------------
+# Given steps
+# ---------------------------------------------------------------------------
+
+
+@given('I save a persona "{name}" with actor "{actor}" in the export registry')
+def step_save_persona(context: Context, name: str, actor: str) -> None:
+    persona = Persona(name=name, actor=actor)
+    context.exp_registry.save(persona)
+
+
+@given(
+    'I save a described persona "{name}" actor "{actor}" description "{desc}"'
+    " in the export registry"
+)
+def step_save_persona_with_desc(
+    context: Context, name: str, actor: str, desc: str
+) -> None:
+    persona = Persona(name=name, actor=actor, description=desc)
+    context.exp_registry.save(persona)
+
+
+@given('I have a valid persona YAML file "{filename}" in a temp working directory')
+def step_create_import_yaml(context: Context, filename: str) -> None:
+    work_dir = _enter_temp_workdir(context)
+    persona_data = {
+        "name": "imported-cli-test",
+        "actor": "local/mock-actor",
+        "description": "CLI import test persona",
+    }
+    (work_dir / filename).write_text(
+        yaml.safe_dump(persona_data, default_flow_style=False), encoding="utf-8"
+    )
+    context.exp_import_filename = filename
+
+
+@given('I create a file "{filename}" in a temp working directory')
+def step_create_existing_file(context: Context, filename: str) -> None:
+    if not hasattr(context, "exp_work_dir"):
+        _enter_temp_workdir(context)
+    (context.exp_work_dir / filename).write_text("placeholder", encoding="utf-8")
+
+
+# ---------------------------------------------------------------------------
+# When steps — TUI router
+# ---------------------------------------------------------------------------
+
+
+@when('I call the TUI router with "{command}" in a temp working directory')
+def step_call_router_in_tempdir(context: Context, command: str) -> None:
+    _enter_temp_workdir(context)
+    router = _make_router(context)
+    context.exp_router_result = router.handle(command, session_id="test-session")
+
+
+@when('I call the TUI router with "{command}" in that working directory')
+def step_call_router_in_existing_workdir(context: Context, command: str) -> None:
+    # Working directory already set by a previous Given step
+    router = _make_router(context)
+    context.exp_router_result = router.handle(command, session_id="test-session")
+
+
+# ---------------------------------------------------------------------------
+# When steps — registry round-trip
+# ---------------------------------------------------------------------------
+
+
+@when(
+    'I export persona "{name}" to "{filename}" via the registry'
+    " in a temp working directory"
+)
+def step_export_via_registry(context: Context, name: str, filename: str) -> None:
+    _enter_temp_workdir(context)
+    context.exp_export_error = None
+    try:
+        context.exp_registry.export_persona(name, Path(filename))
+        context.exp_export_filename = filename
+    except Exception as exc:
+        context.exp_export_error = exc
+
+
+@when('I delete persona "{name}" from the export registry')
+def step_delete_from_registry(context: Context, name: str) -> None:
+    context.exp_registry.delete(name)
+
+
+@when('I import persona from "{filename}" via the registry in that working directory')
+def step_import_via_registry(context: Context, filename: str) -> None:
+    context.exp_import_error = None
+    try:
+        context.exp_imported = context.exp_registry.import_persona(Path(filename))
+    except Exception as exc:
+        context.exp_import_error = exc
+        context.exp_imported = None
+
+
+# ---------------------------------------------------------------------------
+# When steps — CLI export
+# ---------------------------------------------------------------------------
+
+
+@when(
+    'I invoke the CLI persona export command for "{name}"'
+    ' with output "{filename}" in a temp working directory'
+)
+def step_cli_export(context: Context, name: str, filename: str) -> None:
+    from typer.testing import CliRunner
+
+    from cleveragents.cli.commands.persona import _reset_registry, app
+
+    _enter_temp_workdir(context)
+    _reset_registry()
+
+    runner = CliRunner()
+    with patch(
+        "cleveragents.cli.commands.persona._get_registry",
+        return_value=context.exp_registry,
+    ):
+        result = runner.invoke(
+            app,
+            ["export", name, "--output", filename],
+        )
+    context.exp_cli_result = result
+    context.exp_cli_filename = filename
+
+
+@when(
+    'I invoke the CLI persona export command for "{name}"'
+    ' with output "{filename}" without force'
+)
+def step_cli_export_no_force(context: Context, name: str, filename: str) -> None:
+    from typer.testing import CliRunner
+
+    from cleveragents.cli.commands.persona import _reset_registry, app
+
+    _reset_registry()
+
+    runner = CliRunner()
+    with patch(
+        "cleveragents.cli.commands.persona._get_registry",
+        return_value=context.exp_registry,
+    ):
+        result = runner.invoke(
+            app,
+            ["export", name, "--output", filename],
+        )
+    context.exp_cli_result = result
+
+
+# ---------------------------------------------------------------------------
+# When steps — CLI import
+# ---------------------------------------------------------------------------
+
+
+@when(
+    'I invoke the CLI persona import command with input "{filename}"'
+    " in a temp working directory"
+)
+def step_cli_import(context: Context, filename: str) -> None:
+    from typer.testing import CliRunner
+
+    from cleveragents.cli.commands.persona import _reset_registry, app
+
+    # Working directory may already be set by a previous Given step
+    if not hasattr(context, "exp_work_dir"):
+        _enter_temp_workdir(context)
+    _reset_registry()
+
+    runner = CliRunner()
+    with patch(
+        "cleveragents.cli.commands.persona._get_registry",
+        return_value=context.exp_registry,
+    ):
+        result = runner.invoke(
+            app,
+            ["import", "--input", str(context.exp_work_dir / filename)],
+        )
+    context.exp_cli_result = result
+
+
+# ---------------------------------------------------------------------------
+# Then steps — TUI router assertions
+# ---------------------------------------------------------------------------
+
+
+@then('the TUI router result should start with "{prefix}"')
+def step_router_result_starts_with(context: Context, prefix: str) -> None:
+    result = context.exp_router_result
+    assert result.startswith(prefix), (
+        f"Expected result to start with {prefix!r}, got {result!r}"
+    )
+
+
+@then('the TUI router result should be "{expected}"')
+def step_router_result_exact(context: Context, expected: str) -> None:
+    result = context.exp_router_result
+    assert result == expected, f"Expected {expected!r}, got {result!r}"
+
+
+@then('the default export file "{filename}" should exist in the working directory')
+def step_default_export_file_exists(context: Context, filename: str) -> None:
+    path = context.exp_work_dir / filename
+    assert path.exists(), f"Expected {path} to exist"
+    data = yaml.safe_load(path.read_text(encoding="utf-8"))
+    assert isinstance(data, dict)
+    assert "name" in data
+
+
+@then('the export file "{filename}" should exist in the working directory')
+def step_export_file_exists(context: Context, filename: str) -> None:
+    path = context.exp_work_dir / filename
+    assert path.exists(), f"Expected {path} to exist"
+    data = yaml.safe_load(path.read_text(encoding="utf-8"))
+    assert isinstance(data, dict)
+    assert "name" in data
+
+
+@then("the imported persona should be saved in the export registry")
+def step_imported_saved_in_registry(context: Context) -> None:
+    persona = context.exp_registry.get("imported-cli-test")
+    assert persona is not None, "Expected persona 'imported-cli-test' to be in registry"
+
+
+# ---------------------------------------------------------------------------
+# Then steps — round-trip assertions
+# ---------------------------------------------------------------------------
+
+
+@then('the re-imported persona name should be "{name}"')
+def step_reimported_name(context: Context, name: str) -> None:
+    assert context.exp_import_error is None, (
+        f"Import failed: {context.exp_import_error!r}"
+    )
+    assert context.exp_imported is not None
+    assert context.exp_imported.name == name
+
+
+@then('the re-imported persona actor should be "{actor}"')
+def step_reimported_actor(context: Context, actor: str) -> None:
+    assert context.exp_imported is not None
+    assert context.exp_imported.actor == actor
+
+
+@then('the re-imported persona description should be "{desc}"')
+def step_reimported_description(context: Context, desc: str) -> None:
+    assert context.exp_imported is not None
+    assert context.exp_imported.description == desc
+
+
+# ---------------------------------------------------------------------------
+# Then steps — CLI assertions
+# ---------------------------------------------------------------------------
+
+
+@then("the CLI export should succeed")
+def step_cli_export_success(context: Context) -> None:
+    result = context.exp_cli_result
+    assert result.exit_code == 0, (
+        f"Expected exit code 0, got {result.exit_code}. Output:\n{result.output}"
+    )
+
+
+@then('the file "{filename}" should exist and contain valid persona YAML')
+def step_cli_file_exists_valid(context: Context, filename: str) -> None:
+    path = context.exp_work_dir / filename
+    assert path.exists(), f"Expected {path} to exist"
+    data = yaml.safe_load(path.read_text(encoding="utf-8"))
+    assert isinstance(data, dict), f"Expected dict, got {type(data)}"
+    assert "name" in data
+    assert "actor" in data
+
+
+@then("the CLI export should fail with exit code 1")
+def step_cli_export_fail(context: Context) -> None:
+    result = context.exp_cli_result
+    assert result.exit_code == 1, (
+        f"Expected exit code 1, got {result.exit_code}. Output:\n{result.output}"
+    )
+
+
+@then("the CLI import should succeed")
+def step_cli_import_success(context: Context) -> None:
+    result = context.exp_cli_result
+    assert result.exit_code == 0, (
+        f"Expected exit code 0, got {result.exit_code}. Output:\n{result.output}"
+    )
+
+
+@then('the persona "{name}" should exist in the export registry')
+def step_persona_in_registry(context: Context, name: str) -> None:
+    persona = context.exp_registry.get(name)
+    assert persona is not None, f"Expected persona '{name}' to be in registry"
+
+
+@then("the CLI import should fail with exit code 1")
+def step_cli_import_fail(context: Context) -> None:
+    result = context.exp_cli_result
+    assert result.exit_code == 1, (
+        f"Expected exit code 1, got {result.exit_code}. Output:\n{result.output}"
+    )
diff --git a/features/tui_persona_export_import.feature b/features/tui_persona_export_import.feature
new file mode 100644
index 000000000..5e1d00b09
--- /dev/null
+++ b/features/tui_persona_export_import.feature
@@ -0,0 +1,96 @@
+Feature: Persona export/import in YAML format
+  Persona configurations can be exported to YAML files and imported back,
+  preserving all fields including actor, base_arguments, scoped_projects,
+  scoped_plans, and argument_presets.
+
+  Background:
+    Given a temporary persona registry for export/import tests
+
+  # ---------- TUI command router: export ----------
+
+  Scenario: TUI router exports persona with default filename
+    Given I save a persona "dev" with actor "local/mock-actor" in the export registry
+    When I call the TUI router with "persona export dev" in a temp working directory
+    Then the TUI router result should start with "Exported persona 'dev' to"
+    And the default export file "dev.yaml" should exist in the working directory
+
+  Scenario: TUI router exports persona with explicit filename
+    Given I save a persona "dev" with actor "local/mock-actor" in the export registry
+    When I call the TUI router with "persona export dev custom.yaml" in a temp working directory
+    Then the TUI router result should start with "Exported persona 'dev' to"
+    And the export file "custom.yaml" should exist in the working directory
+
+  Scenario: TUI router export returns error for missing persona
+    When I call the TUI router with "persona export nonexistent" in a temp working directory
+    Then the TUI router result should start with "Export error:"
+
+  Scenario: TUI router export returns usage when no name given
+    When I call the TUI router with "persona export" in a temp working directory
+    Then the TUI router result should be "Usage: /persona export <name> [path]"
+
+  # ---------- TUI command router: import ----------
+
+  Scenario: TUI router imports persona from YAML file
+    Given I have a valid persona YAML file "to_import.yaml" in a temp working directory
+    When I call the TUI router with "persona import to_import.yaml" in that working directory
+    Then the TUI router result should start with "Imported persona '"
+    And the imported persona should be saved in the export registry
+
+  Scenario: TUI router import returns error for missing file
+    When I call the TUI router with "persona import missing.yaml" in a temp working directory
+    Then the TUI router result should start with "Import error:"
+
+  Scenario: TUI router import returns usage when no path given
+    When I call the TUI router with "persona import" in a temp working directory
+    Then the TUI router result should be "Usage: /persona import <path>"
+
+  # ---------- Colon-style alias routing ----------
+
+  Scenario: Colon-style persona:export alias is routed correctly
+    Given I save a persona "dev" with actor "local/mock-actor" in the export registry
+    When I call the TUI router with "persona:export dev" in a temp working directory
+    Then the TUI router result should start with "Exported persona 'dev' to"
+
+  Scenario: Colon-style persona:import alias is routed correctly
+    Given I have a valid persona YAML file "to_import.yaml" in a temp working directory
+    When I call the TUI router with "persona:import to_import.yaml" in that working directory
+    Then the TUI router result should start with "Imported persona '"
+
+  # ---------- Round-trip: export then import ----------
+
+  Scenario: Round-trip export then import preserves persona data
+    Given I save a described persona "roundtrip" actor "local/mock-actor" description "Round-trip test" in the export registry
+    When I export persona "roundtrip" to "roundtrip.yaml" via the registry in a temp working directory
+    And I delete persona "roundtrip" from the export registry
+    And I import persona from "roundtrip.yaml" via the registry in that working directory
+    Then the re-imported persona name should be "roundtrip"
+    And the re-imported persona actor should be "local/mock-actor"
+    And the re-imported persona description should be "Round-trip test"
+
+  # ---------- CLI commands ----------
+
+  Scenario: CLI persona export command writes YAML file
+    Given I save a persona "clipersona" with actor "local/mock-actor" in the export registry
+    When I invoke the CLI persona export command for "clipersona" with output "cli_out.yaml" in a temp working directory
+    Then the CLI export should succeed
+    And the file "cli_out.yaml" should exist and contain valid persona YAML
+
+  Scenario: CLI persona export command fails for missing persona
+    When I invoke the CLI persona export command for "ghost" with output "ghost.yaml" in a temp working directory
+    Then the CLI export should fail with exit code 1
+
+  Scenario: CLI persona export command fails when file exists without force
+    Given I save a persona "existing" with actor "local/mock-actor" in the export registry
+    And I create a file "existing.yaml" in a temp working directory
+    When I invoke the CLI persona export command for "existing" with output "existing.yaml" without force
+    Then the CLI export should fail with exit code 1
+
+  Scenario: CLI persona import command reads YAML and saves persona
+    Given I have a valid persona YAML file "import_cli.yaml" in a temp working directory
+    When I invoke the CLI persona import command with input "import_cli.yaml" in a temp working directory
+    Then the CLI import should succeed
+    And the persona "imported-cli-test" should exist in the export registry
+
+  Scenario: CLI persona import command fails for missing file
+    When I invoke the CLI persona import command with input "no_such_file.yaml" in a temp working directory
+    Then the CLI import should fail with exit code 1
diff --git a/src/cleveragents/cli/commands/persona.py b/src/cleveragents/cli/commands/persona.py
new file mode 100644
index 000000000..89ca43255
--- /dev/null
+++ b/src/cleveragents/cli/commands/persona.py
@@ -0,0 +1,169 @@
+"""CLI commands for persona export/import (YAML format).
+
+Provides ``agents persona export`` and ``agents persona import`` commands
+that serialise/deserialise TUI persona configurations to/from YAML files.
+
+The canonical persona schema and registry live in
+``cleveragents.tui.persona.*``; this module is a thin CLI adapter.
+"""
+
+from __future__ import annotations
+
+import logging
+from pathlib import Path
+from typing import Annotated
+
+import typer
+import yaml
+from pydantic import ValidationError
+from rich.console import Console
+from rich.panel import Panel
+
+from cleveragents.tui.persona.registry import PersonaRegistry
+from cleveragents.tui.persona.schema import Persona
+
+app = typer.Typer(help="Manage TUI personas.")
+console = Console()
+
+_log = logging.getLogger(__name__)
+
+# ---------------------------------------------------------------------------
+# Module-level registry accessor (patchable in tests)
+# ---------------------------------------------------------------------------
+_registry: PersonaRegistry | None = None
+
+
+def _get_registry() -> PersonaRegistry:
+    """Return the shared PersonaRegistry instance."""
+    global _registry
+    if _registry is not None:
+        return _registry
+    _registry = PersonaRegistry()
+    return _registry
+
+
+def _reset_registry() -> None:
+    """Reset the module-level registry (used by tests)."""
+    global _registry
+    _registry = None
+
+
+# ---------------------------------------------------------------------------
+# Commands
+# ---------------------------------------------------------------------------
+
+
+@app.command("export")
+def export_persona(
+    name: Annotated[
+        str,
+        typer.Argument(help="Name of the persona to export"),
+    ],
+    output: Annotated[
+        Path | None,
+        typer.Option(
+            "--output",
+            "-o",
+            help="Output YAML file path (default: <name>.yaml in current directory)",
+        ),
+    ] = None,
+    force: Annotated[
+        bool,
+        typer.Option("--force", help="Overwrite existing output file"),
+    ] = False,
+) -> None:
+    """Export a persona configuration to a YAML file.
+
+    The exported file contains all persona fields: actor, base_arguments,
+    scoped_projects, scoped_plans, argument_presets, and metadata.
+
+    Examples:
+        agents persona export mydev
+        agents persona export mydev -o mydev-backup.yaml
+        agents persona export mydev -o mydev-backup.yaml --force
+    """
+    output_path = output if output is not None else Path(f"{name}.yaml")
+
+    if output_path.exists() and not force:
+        console.print(
+            f"[red]File already exists:[/red] {output_path}\nUse --force to overwrite."
+        )
+        raise typer.Exit(1)
+
+    try:
+        registry = _get_registry()
+        persona = registry.get(name)
+        if persona is None:
+            console.print(f"[red]Error:[/red] Persona not found: {name}")
+            raise typer.Exit(1)
+        payload = persona.model_dump(mode="json", exclude_none=True)
+        output_path.parent.mkdir(parents=True, exist_ok=True)
+        output_path.write_text(
+            yaml.safe_dump(payload, sort_keys=False, default_flow_style=False),
+            encoding="utf-8",
+        )
+        details = (
+            f"[bold]Persona:[/bold] {name}\n"
+            f"[bold]Output:[/bold] {output_path.resolve()}"
+        )
+        console.print(Panel(details, title="Persona Exported", expand=False))
+        console.print("[green]✓ OK[/green] Persona exported")
+    except typer.Exit:
+        raise
+    except OSError as exc:
+        _log.debug("persona export failed", exc_info=True)
+        console.print(f"[red]Error:[/red] Could not write file: {exc}")
+        raise typer.Exit(1) from exc
+
+
+@app.command("import")
+def import_persona(
+    input_file: Annotated[
+        Path,
+        typer.Option(
+            "--input",
+            "-i",
+            help="Input YAML file path",
+        ),
+    ],
+) -> None:
+    """Import a persona configuration from a YAML file.
+
+    The file must contain a valid persona definition with at minimum
+    ``name`` and ``actor`` fields.  If a persona with the same name
+    already exists it will be overwritten.
+
+    Examples:
+        agents persona import -i mydev.yaml
+        agents persona import --input /path/to/persona.yaml
+    """
+    if not input_file.exists():
+        console.print(f"[red]File not found:[/red] {input_file}")
+        raise typer.Exit(1)
+
+    try:
+        raw = yaml.safe_load(input_file.read_text(encoding="utf-8")) or {}
+        if not isinstance(raw, dict):
+            console.print(
+                "[red]Error:[/red] Invalid persona file: expected a YAML mapping"
+            )
+            raise typer.Exit(1)
+        persona = Persona.model_validate(raw)
+        registry = _get_registry()
+        registry.save(persona)
+        details = (
+            f"[bold]Persona:[/bold] {persona.name}\n"
+            f"[bold]Actor:[/bold] {persona.actor}\n"
+            f"[bold]Description:[/bold] {persona.description or '(none)'}"
+        )
+        console.print(Panel(details, title="Persona Imported", expand=False))
+        console.print("[green]✓ OK[/green] Persona imported")
+    except typer.Exit:
+        raise
+    except (yaml.YAMLError, ValidationError) as exc:
+        console.print(f"[red]Error:[/red] Invalid persona file: {exc}")
+        raise typer.Exit(1) from exc
+    except OSError as exc:
+        _log.debug("persona import failed", exc_info=True)
+        console.print(f"[red]Error:[/red] Could not read file: {exc}")
+        raise typer.Exit(1) from exc
diff --git a/src/cleveragents/cli/main.py b/src/cleveragents/cli/main.py
index 7afcb56c1..665be3bef 100644
--- a/src/cleveragents/cli/main.py
+++ b/src/cleveragents/cli/main.py
@@ -87,6 +87,7 @@ def _register_subcommands() -> None:
             context,
             invariant,
             lsp,
+            persona,
             plan,
             project,
             repo,
@@ -168,6 +169,11 @@ def _register_subcommands() -> None:
         name="session",
         help="Manage interactive sessions",
     )
+    app.add_typer(
+        persona.app,
+        name="persona",
+        help="Export and import TUI persona configurations (YAML)",
+    )
     app.add_typer(
         config.app,
         name="config",
@@ -680,6 +686,7 @@ def main(args: list[str] | None = None) -> int:
             "cleanup",  # Garbage collection and cleanup
             "config",  # Configuration management
             "session",  # Session management
+            "persona",  # Persona export/import
             "tool",  # Tool registry management
             "validation",  # Validation management
             "auto-debug",  # Auto-debug commands
diff --git a/src/cleveragents/tui/commands.py b/src/cleveragents/tui/commands.py
index 1134e995e..3100d45c6 100644
--- a/src/cleveragents/tui/commands.py
+++ b/src/cleveragents/tui/commands.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 
 import json
 from dataclasses import dataclass
+from pathlib import Path
 
 from cleveragents.application.container import get_container
 from cleveragents.tui.app import CleverAgentsTuiApp, textual_available
@@ -22,6 +23,11 @@ class TuiCommandRouter:
         tokens = raw.strip().split()
         if not tokens:
             return "Empty command"
+        # Support colon-style aliases: "persona:export" → ["persona", "export"]
+        first = tokens[0]
+        if ":" in first:
+            parts = first.split(":", 1)
+            tokens = parts + tokens[1:]
         if tokens[0] == "persona":
             return self._persona_command(tokens[1:], session_id=session_id)
         if tokens[0] == "session":
@@ -39,8 +45,35 @@ class TuiCommandRouter:
                 return "Usage: /persona set <name>"
             persona = self.persona_state.set_active_persona(session_id, tokens[1])
             return f"Active persona: {persona.name}"
+        if tokens[0] == "export":
+            return self._persona_export(tokens[1:])
+        if tokens[0] == "import":
+            return self._persona_import(tokens[1:])
         return f"Unknown persona command: {' '.join(tokens)}"
 
+    def _persona_export(self, tokens: list[str]) -> str:
+        """Handle /persona export <name> [path]."""
+        if not tokens:
+            return "Usage: /persona export <name> [path]"
+        name = tokens[0]
+        output_path = Path(tokens[1]) if len(tokens) > 1 else Path(f"{name}.yaml")
+        try:
+            result = self.persona_registry.export_persona(name, output_path)
+            return f"Exported persona '{name}' to {result}"
+        except ValueError as exc:
+            return f"Export error: {exc}"
+
+    def _persona_import(self, tokens: list[str]) -> str:
+        """Handle /persona import <path>."""
+        if not tokens:
+            return "Usage: /persona import <path>"
+        input_path = Path(tokens[0])
+        try:
+            persona = self.persona_registry.import_persona(input_path)
+            return f"Imported persona '{persona.name}'"
+        except (ValueError, OSError) as exc:
+            return f"Import error: {exc}"
+
     @staticmethod
     def _session_command(tokens: list[str], *, session_id: str) -> str:
         if not tokens or tokens[0] == "show":