remove relaunch_chat

not needed

hermes_cli/_parser.py

@@ -0,0 +1,367 @@
+"""
+Top-level argparse construction for the hermes CLI.
+
+Lives in its own module so other modules (e.g. ``relaunch.py``) can
+introspect the parser to discover which flags exist without running the
+``main`` fn.
+
+Only the top-level parser and the ``chat`` subparser live here. Every other
+subparser (model, gateway, sessions, …) is built inline in ``main.py``
+because its dispatch is tightly coupled to module-level ``cmd_*`` functions.
+"""
+
+import argparse
+
+
+# `--profile` / `-p` is consumed by ``main._apply_profile_override`` before
+# argparse runs (it sets ``HERMES_HOME`` and strips itself from ``sys.argv``),
+# so it isn't on the parser. Listed here so all "carry over on relaunch"
+# metadata lives in one file.
+PRE_ARGPARSE_INHERITED_FLAGS: list[tuple[str, bool]] = [
+    ("--profile", True),
+    ("-p", True),
+]
+
+
+def _inherited_flag(parser, *args, **kwargs):
+    """Register a flag that ``hermes_cli.relaunch`` should carry over when
+    the CLI re-execs itself (e.g. after ``sessions browse`` picks a session,
+    or after the setup wizard launches chat).
+
+    Equivalent to ``parser.add_argument(...)`` plus tagging the resulting
+    Action with ``inherit_on_relaunch = True`` so the relaunch table builder
+    can find it via introspection.
+    """
+    action = parser.add_argument(*args, **kwargs)
+    action.inherit_on_relaunch = True
+    return action
+
+
+_EPILOGUE = """
+Examples:
+    hermes                        Start interactive chat
+    hermes chat -q "Hello"        Single query mode
+    hermes -c                     Resume the most recent session
+    hermes -c "my project"        Resume a session by name (latest in lineage)
+    hermes --resume <session_id>  Resume a specific session by ID
+    hermes setup                  Run setup wizard
+    hermes logout                 Clear stored authentication
+    hermes auth add <provider>    Add a pooled credential
+    hermes auth list              List pooled credentials
+    hermes auth remove <p> <t>    Remove pooled credential by index, id, or label
+    hermes auth reset <provider>  Clear exhaustion status for a provider
+    hermes model                  Select default model
+    hermes fallback [list]        Show fallback provider chain
+    hermes fallback add           Add a fallback provider (same picker as `hermes model`)
+    hermes fallback remove        Remove a fallback provider from the chain
+    hermes config                 View configuration
+    hermes config edit            Edit config in $EDITOR
+    hermes config set model gpt-4 Set a config value
+    hermes gateway                Run messaging gateway
+    hermes -s hermes-agent-dev,github-auth
+    hermes -w                     Start in isolated git worktree
+    hermes gateway install        Install gateway background service
+    hermes sessions list          List past sessions
+    hermes sessions browse        Interactive session picker
+    hermes sessions rename ID T   Rename/title a session
+    hermes logs                   View agent.log (last 50 lines)
+    hermes logs -f                Follow agent.log in real time
+    hermes logs errors            View errors.log
+    hermes logs --since 1h        Lines from the last hour
+    hermes debug share             Upload debug report for support
+    hermes update                 Update to latest version
+
+For more help on a command:
+    hermes <command> --help
+"""
+
+
+def build_top_level_parser():
+    """Build the top-level parser, the subparsers action, and the ``chat`` subparser.
+
+    Returns ``(parser, subparsers, chat_parser)``. The caller wires
+    ``chat_parser.set_defaults(func=cmd_chat)`` and continues registering
+    other subparsers via ``subparsers.add_parser(...)``.
+    """
+    parser = argparse.ArgumentParser(
+        prog="hermes",
+        description="Hermes Agent - AI assistant with tool-calling capabilities",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog=_EPILOGUE,
+    )
+
+    parser.add_argument(
+        "--version", "-V", action="store_true", help="Show version and exit"
+    )
+    parser.add_argument(
+        "-z",
+        "--oneshot",
+        metavar="PROMPT",
+        default=None,
+        help=(
+            "One-shot mode: send a single prompt and print ONLY the final "
+            "response text to stdout. No banner, no spinner, no tool "
+            "previews, no session_id line. Tools, memory, rules, and "
+            "AGENTS.md in the CWD are loaded as normal; approvals are "
+            "auto-bypassed. Intended for scripts / pipes."
+        ),
+    )
+    # --model / --provider are accepted at the top level so they can pair
+    # with -z without needing the `chat` subcommand.  If neither -z nor a
+    # subcommand consumes them, they fall through harmlessly as None.
+    # Mirrors `hermes chat --model ... --provider ...` semantics.
+    _inherited_flag(
+        parser,
+        "-m",
+        "--model",
+        default=None,
+        help=(
+            "Model override for this invocation (e.g. anthropic/claude-sonnet-4.6). "
+            "Applies to -z/--oneshot and --tui. Also settable via HERMES_INFERENCE_MODEL env var."
+        ),
+    )
+    _inherited_flag(
+        parser,
+        "--provider",
+        default=None,
+        help=(
+            "Provider override for this invocation (e.g. openrouter, anthropic). "
+            "Applies to -z/--oneshot and --tui. Also settable via HERMES_INFERENCE_PROVIDER env var."
+        ),
+    )
+    parser.add_argument(
+        "--resume",
+        "-r",
+        metavar="SESSION",
+        default=None,
+        help="Resume a previous session by ID or title",
+    )
+    parser.add_argument(
+        "--continue",
+        "-c",
+        dest="continue_last",
+        nargs="?",
+        const=True,
+        default=None,
+        metavar="SESSION_NAME",
+        help="Resume a session by name, or the most recent if no name given",
+    )
+    parser.add_argument(
+        "--worktree",
+        "-w",
+        action="store_true",
+        default=False,
+        help="Run in an isolated git worktree (for parallel agents)",
+    )
+    _inherited_flag(
+        parser,
+        "--accept-hooks",
+        action="store_true",
+        default=False,
+        help=(
+            "Auto-approve any unseen shell hooks declared in config.yaml "
+            "without a TTY prompt.  Equivalent to HERMES_ACCEPT_HOOKS=1 or "
+            "hooks_auto_accept: true in config.yaml.  Use on CI / headless "
+            "runs that can't prompt."
+        ),
+    )
+    _inherited_flag(
+        parser,
+        "--skills",
+        "-s",
+        action="append",
+        default=None,
+        help="Preload one or more skills for the session (repeat flag or comma-separate)",
+    )
+    _inherited_flag(
+        parser,
+        "--yolo",
+        action="store_true",
+        default=False,
+        help="Bypass all dangerous command approval prompts (use at your own risk)",
+    )
+    _inherited_flag(
+        parser,
+        "--pass-session-id",
+        action="store_true",
+        default=False,
+        help="Include the session ID in the agent's system prompt",
+    )
+    _inherited_flag(
+        parser,
+        "--ignore-user-config",
+        action="store_true",
+        default=False,
+        help="Ignore ~/.hermes/config.yaml and fall back to built-in defaults (credentials in .env are still loaded)",
+    )
+    _inherited_flag(
+        parser,
+        "--ignore-rules",
+        action="store_true",
+        default=False,
+        help="Skip auto-injection of AGENTS.md, SOUL.md, .cursorrules, memory, and preloaded skills",
+    )
+    _inherited_flag(
+        parser,
+        "--tui",
+        action="store_true",
+        default=False,
+        help="Launch the modern TUI instead of the classic REPL",
+    )
+    _inherited_flag(
+        parser,
+        "--dev",
+        dest="tui_dev",
+        action="store_true",
+        default=False,
+        help="With --tui: run TypeScript sources via tsx (skip dist build)",
+    )
+
+    subparsers = parser.add_subparsers(dest="command", help="Command to run")
+
+    # =========================================================================
+    # chat command
+    # =========================================================================
+    chat_parser = subparsers.add_parser(
+        "chat",
+        help="Interactive chat with the agent",
+        description="Start an interactive chat session with Hermes Agent",
+    )
+    chat_parser.add_argument(
+        "-q", "--query", help="Single query (non-interactive mode)"
+    )
+    chat_parser.add_argument(
+        "--image", help="Optional local image path to attach to a single query"
+    )
+    _inherited_flag(
+        chat_parser,
+        "-m", "--model", help="Model to use (e.g., anthropic/claude-sonnet-4)",
+    )
+    chat_parser.add_argument(
+        "-t", "--toolsets", help="Comma-separated toolsets to enable"
+    )
+    _inherited_flag(
+        chat_parser,
+        "-s",
+        "--skills",
+        action="append",
+        default=argparse.SUPPRESS,
+        help="Preload one or more skills for the session (repeat flag or comma-separate)",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--provider",
+        # No `choices=` here: user-defined providers from config.yaml `providers:`
+        # are also valid values, and runtime resolution (resolve_runtime_provider)
+        # handles validation/error reporting consistently with the top-level
+        # `--provider` flag.
+        default=None,
+        help="Inference provider (default: auto). Built-in or a user-defined name from `providers:` in config.yaml.",
+    )
+    chat_parser.add_argument(
+        "-v", "--verbose", action="store_true", help="Verbose output"
+    )
+    chat_parser.add_argument(
+        "-Q",
+        "--quiet",
+        action="store_true",
+        help="Quiet mode for programmatic use: suppress banner, spinner, and tool previews. Only output the final response and session info.",
+    )
+    chat_parser.add_argument(
+        "--resume",
+        "-r",
+        metavar="SESSION_ID",
+        default=argparse.SUPPRESS,
+        help="Resume a previous session by ID (shown on exit)",
+    )
+    chat_parser.add_argument(
+        "--continue",
+        "-c",
+        dest="continue_last",
+        nargs="?",
+        const=True,
+        default=argparse.SUPPRESS,
+        metavar="SESSION_NAME",
+        help="Resume a session by name, or the most recent if no name given",
+    )
+    chat_parser.add_argument(
+        "--worktree",
+        "-w",
+        action="store_true",
+        default=argparse.SUPPRESS,
+        help="Run in an isolated git worktree (for parallel agents on the same repo)",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--accept-hooks",
+        action="store_true",
+        default=argparse.SUPPRESS,
+        help=(
+            "Auto-approve any unseen shell hooks declared in config.yaml "
+            "without a TTY prompt (see also HERMES_ACCEPT_HOOKS env var and "
+            "hooks_auto_accept: in config.yaml)."
+        ),
+    )
+    chat_parser.add_argument(
+        "--checkpoints",
+        action="store_true",
+        default=False,
+        help="Enable filesystem checkpoints before destructive file operations (use /rollback to restore)",
+    )
+    chat_parser.add_argument(
+        "--max-turns",
+        type=int,
+        default=None,
+        metavar="N",
+        help="Maximum tool-calling iterations per conversation turn (default: 90, or agent.max_turns in config)",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--yolo",
+        action="store_true",
+        default=argparse.SUPPRESS,
+        help="Bypass all dangerous command approval prompts (use at your own risk)",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--pass-session-id",
+        action="store_true",
+        default=argparse.SUPPRESS,
+        help="Include the session ID in the agent's system prompt",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--ignore-user-config",
+        action="store_true",
+        default=argparse.SUPPRESS,
+        help="Ignore ~/.hermes/config.yaml and fall back to built-in defaults (credentials in .env are still loaded). Useful for isolated CI runs, reproduction, and third-party integrations.",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--ignore-rules",
+        action="store_true",
+        default=argparse.SUPPRESS,
+        help="Skip auto-injection of AGENTS.md, SOUL.md, .cursorrules, memory, and preloaded skills. Combine with --ignore-user-config for a fully isolated run.",
+    )
+    chat_parser.add_argument(
+        "--source",
+        default=None,
+        help="Session source tag for filtering (default: cli). Use 'tool' for third-party integrations that should not appear in user session lists.",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--tui",
+        action="store_true",
+        default=False,
+        help="Launch the modern TUI instead of the classic REPL",
+    )
+    _inherited_flag(
+        chat_parser,
+        "--dev",
+        dest="tui_dev",
+        action="store_true",
+        default=False,
+        help="With --tui: run TypeScript sources via tsx (skip dist build)",
+    )
+
+    return parser, subparsers, chat_parser

hermes_cli/main.py

@@ -114,6 +114,12 @@ def _apply_profile_override() -> None:
             consume = 1
             break
 
+    # 1.5 If HERMES_HOME is already set and no explicit flag was given, trust it.
+    # This lets child processes (relaunch, subprocess) inherit the parent's
+    # profile choice without having to pass --profile again.
+    if profile_name is None and os.environ.get("HERMES_HOME"):
+        return
+
     # 2. If no flag, check active_profile in the hermes root
     if profile_name is None:
         try:
@@ -7758,302 +7764,9 @@ def cmd_logs(args):
 
 def main():
     """Main entry point for hermes CLI."""
-    parser = argparse.ArgumentParser(
+    from hermes_cli._parser import build_top_level_parser
-        prog="hermes",
-        description="Hermes Agent - AI assistant with tool-calling capabilities",
-        formatter_class=argparse.RawDescriptionHelpFormatter,
-        epilog="""
-Examples:
-    hermes                        Start interactive chat
-    hermes chat -q "Hello"        Single query mode
-    hermes -c                     Resume the most recent session
-    hermes -c "my project"        Resume a session by name (latest in lineage)
-    hermes --resume <session_id>  Resume a specific session by ID
-    hermes setup                  Run setup wizard
-    hermes logout                 Clear stored authentication
-    hermes auth add <provider>    Add a pooled credential
-    hermes auth list              List pooled credentials
-    hermes auth remove <p> <t>    Remove pooled credential by index, id, or label
-    hermes auth reset <provider>  Clear exhaustion status for a provider
-    hermes model                  Select default model
-    hermes fallback [list]        Show fallback provider chain
-    hermes fallback add           Add a fallback provider (same picker as `hermes model`)
-    hermes fallback remove        Remove a fallback provider from the chain
-    hermes config                 View configuration
-    hermes config edit            Edit config in $EDITOR
-    hermes config set model gpt-4 Set a config value
-    hermes gateway                Run messaging gateway
-    hermes -s hermes-agent-dev,github-auth
-    hermes -w                     Start in isolated git worktree
-    hermes gateway install        Install gateway background service
-    hermes sessions list          List past sessions
-    hermes sessions browse        Interactive session picker
-    hermes sessions rename ID T   Rename/title a session
-    hermes logs                   View agent.log (last 50 lines)
-    hermes logs -f                Follow agent.log in real time
-    hermes logs errors            View errors.log
-    hermes logs --since 1h        Lines from the last hour
-    hermes debug share             Upload debug report for support
-    hermes update                 Update to latest version
 
-For more help on a command:
+    parser, subparsers, chat_parser = build_top_level_parser()
-    hermes <command> --help
-""",
-    )
-
-    parser.add_argument(
-        "--version", "-V", action="store_true", help="Show version and exit"
-    )
-    parser.add_argument(
-        "-z",
-        "--oneshot",
-        metavar="PROMPT",
-        default=None,
-        help=(
-            "One-shot mode: send a single prompt and print ONLY the final "
-            "response text to stdout. No banner, no spinner, no tool "
-            "previews, no session_id line. Tools, memory, rules, and "
-            "AGENTS.md in the CWD are loaded as normal; approvals are "
-            "auto-bypassed. Intended for scripts / pipes."
-        ),
-    )
-    # --model / --provider are accepted at the top level so they can pair
-    # with -z without needing the `chat` subcommand.  If neither -z nor a
-    # subcommand consumes them, they fall through harmlessly as None.
-    # Mirrors `hermes chat --model ... --provider ...` semantics.
-    parser.add_argument(
-        "-m",
-        "--model",
-        default=None,
-        help=(
-            "Model override for this invocation (e.g. anthropic/claude-sonnet-4.6). "
-            "Applies to -z/--oneshot and --tui. Also settable via HERMES_INFERENCE_MODEL env var."
-        ),
-    )
-    parser.add_argument(
-        "--provider",
-        default=None,
-        help=(
-            "Provider override for this invocation (e.g. openrouter, anthropic). "
-            "Applies to -z/--oneshot and --tui. Also settable via HERMES_INFERENCE_PROVIDER env var."
-        ),
-    )
-    parser.add_argument(
-        "--resume",
-        "-r",
-        metavar="SESSION",
-        default=None,
-        help="Resume a previous session by ID or title",
-    )
-    parser.add_argument(
-        "--continue",
-        "-c",
-        dest="continue_last",
-        nargs="?",
-        const=True,
-        default=None,
-        metavar="SESSION_NAME",
-        help="Resume a session by name, or the most recent if no name given",
-    )
-    parser.add_argument(
-        "--worktree",
-        "-w",
-        action="store_true",
-        default=False,
-        help="Run in an isolated git worktree (for parallel agents)",
-    )
-    parser.add_argument(
-        "--accept-hooks",
-        action="store_true",
-        default=False,
-        help=(
-            "Auto-approve any unseen shell hooks declared in config.yaml "
-            "without a TTY prompt.  Equivalent to HERMES_ACCEPT_HOOKS=1 or "
-            "hooks_auto_accept: true in config.yaml.  Use on CI / headless "
-            "runs that can't prompt."
-        ),
-    )
-    parser.add_argument(
-        "--skills",
-        "-s",
-        action="append",
-        default=None,
-        help="Preload one or more skills for the session (repeat flag or comma-separate)",
-    )
-    parser.add_argument(
-        "--yolo",
-        action="store_true",
-        default=False,
-        help="Bypass all dangerous command approval prompts (use at your own risk)",
-    )
-    parser.add_argument(
-        "--pass-session-id",
-        action="store_true",
-        default=False,
-        help="Include the session ID in the agent's system prompt",
-    )
-    parser.add_argument(
-        "--ignore-user-config",
-        action="store_true",
-        default=False,
-        help="Ignore ~/.hermes/config.yaml and fall back to built-in defaults (credentials in .env are still loaded)",
-    )
-    parser.add_argument(
-        "--ignore-rules",
-        action="store_true",
-        default=False,
-        help="Skip auto-injection of AGENTS.md, SOUL.md, .cursorrules, memory, and preloaded skills",
-    )
-    parser.add_argument(
-        "--tui",
-        action="store_true",
-        default=False,
-        help="Launch the modern TUI instead of the classic REPL",
-    )
-    parser.add_argument(
-        "--dev",
-        dest="tui_dev",
-        action="store_true",
-        default=False,
-        help="With --tui: run TypeScript sources via tsx (skip dist build)",
-    )
-
-    subparsers = parser.add_subparsers(dest="command", help="Command to run")
-
-    # =========================================================================
-    # chat command
-    # =========================================================================
-    chat_parser = subparsers.add_parser(
-        "chat",
-        help="Interactive chat with the agent",
-        description="Start an interactive chat session with Hermes Agent",
-    )
-    chat_parser.add_argument(
-        "-q", "--query", help="Single query (non-interactive mode)"
-    )
-    chat_parser.add_argument(
-        "--image", help="Optional local image path to attach to a single query"
-    )
-    chat_parser.add_argument(
-        "-m", "--model", help="Model to use (e.g., anthropic/claude-sonnet-4)"
-    )
-    chat_parser.add_argument(
-        "-t", "--toolsets", help="Comma-separated toolsets to enable"
-    )
-    chat_parser.add_argument(
-        "-s",
-        "--skills",
-        action="append",
-        default=argparse.SUPPRESS,
-        help="Preload one or more skills for the session (repeat flag or comma-separate)",
-    )
-    chat_parser.add_argument(
-        "--provider",
-        # No `choices=` here: user-defined providers from config.yaml `providers:`
-        # are also valid values, and runtime resolution (resolve_runtime_provider)
-        # handles validation/error reporting consistently with the top-level
-        # `--provider` flag.
-        default=None,
-        help="Inference provider (default: auto). Built-in or a user-defined name from `providers:` in config.yaml.",
-    )
-    chat_parser.add_argument(
-        "-v", "--verbose", action="store_true", help="Verbose output"
-    )
-    chat_parser.add_argument(
-        "-Q",
-        "--quiet",
-        action="store_true",
-        help="Quiet mode for programmatic use: suppress banner, spinner, and tool previews. Only output the final response and session info.",
-    )
-    chat_parser.add_argument(
-        "--resume",
-        "-r",
-        metavar="SESSION_ID",
-        default=argparse.SUPPRESS,
-        help="Resume a previous session by ID (shown on exit)",
-    )
-    chat_parser.add_argument(
-        "--continue",
-        "-c",
-        dest="continue_last",
-        nargs="?",
-        const=True,
-        default=argparse.SUPPRESS,
-        metavar="SESSION_NAME",
-        help="Resume a session by name, or the most recent if no name given",
-    )
-    chat_parser.add_argument(
-        "--worktree",
-        "-w",
-        action="store_true",
-        default=argparse.SUPPRESS,
-        help="Run in an isolated git worktree (for parallel agents on the same repo)",
-    )
-    chat_parser.add_argument(
-        "--accept-hooks",
-        action="store_true",
-        default=argparse.SUPPRESS,
-        help=(
-            "Auto-approve any unseen shell hooks declared in config.yaml "
-            "without a TTY prompt (see also HERMES_ACCEPT_HOOKS env var and "
-            "hooks_auto_accept: in config.yaml)."
-        ),
-    )
-    chat_parser.add_argument(
-        "--checkpoints",
-        action="store_true",
-        default=False,
-        help="Enable filesystem checkpoints before destructive file operations (use /rollback to restore)",
-    )
-    chat_parser.add_argument(
-        "--max-turns",
-        type=int,
-        default=None,
-        metavar="N",
-        help="Maximum tool-calling iterations per conversation turn (default: 90, or agent.max_turns in config)",
-    )
-    chat_parser.add_argument(
-        "--yolo",
-        action="store_true",
-        default=argparse.SUPPRESS,
-        help="Bypass all dangerous command approval prompts (use at your own risk)",
-    )
-    chat_parser.add_argument(
-        "--pass-session-id",
-        action="store_true",
-        default=argparse.SUPPRESS,
-        help="Include the session ID in the agent's system prompt",
-    )
-    chat_parser.add_argument(
-        "--ignore-user-config",
-        action="store_true",
-        default=argparse.SUPPRESS,
-        help="Ignore ~/.hermes/config.yaml and fall back to built-in defaults (credentials in .env are still loaded). Useful for isolated CI runs, reproduction, and third-party integrations.",
-    )
-    chat_parser.add_argument(
-        "--ignore-rules",
-        action="store_true",
-        default=argparse.SUPPRESS,
-        help="Skip auto-injection of AGENTS.md, SOUL.md, .cursorrules, memory, and preloaded skills. Combine with --ignore-user-config for a fully isolated run.",
-    )
-    chat_parser.add_argument(
-        "--source",
-        default=None,
-        help="Session source tag for filtering (default: cli). Use 'tool' for third-party integrations that should not appear in user session lists.",
-    )
-    chat_parser.add_argument(
-        "--tui",
-        action="store_true",
-        default=False,
-        help="Launch the modern TUI instead of the classic REPL",
-    )
-    chat_parser.add_argument(
-        "--dev",
-        dest="tui_dev",
-        action="store_true",
-        default=False,
-        help="With --tui: run TypeScript sources via tsx (skip dist build)",
-    )
     chat_parser.set_defaults(func=cmd_chat)
 
     # =========================================================================
@@ -9723,15 +9436,8 @@ Examples:
 
             # Launch hermes --resume <id> by replacing the current process
             print(f"Resuming session: {selected_id}")
-            hermes_bin = shutil.which("hermes")
+            from hermes_cli.relaunch import relaunch
-            if hermes_bin:
+            relaunch(["--resume", selected_id])
-                os.execvp(hermes_bin, ["hermes", "--resume", selected_id])
-            else:
-                # Fallback: re-invoke via python -m
-                os.execvp(
-                    sys.executable,
-                    [sys.executable, "-m", "hermes_cli.main", "--resume", selected_id],
-                )
             return  # won't reach here after execvp
 
         elif action == "stats":

hermes_cli/relaunch.py

@@ -0,0 +1,149 @@
+"""
+Unified self-relaunch for Hermes CLI.
+
+Preserves critical flags (--tui, --dev, --profile, --model, etc.) across
+process replacement so that ``hermes sessions browse`` or post-setup relaunch
+doesn't silently drop the user's UI mode or other preferences.
+
+Also works when ``hermes`` is not on PATH (e.g. ``nix run`` or ``python -m``).
+"""
+
+import os
+import shutil
+import sys
+from typing import Optional, Sequence
+
+from hermes_cli._parser import (
+    PRE_ARGPARSE_INHERITED_FLAGS,
+    build_top_level_parser,
+)
+
+
+def _build_inherited_flag_table() -> list[tuple[str, bool]]:
+    """Build the ``(option_string, takes_value)`` table of flags that must
+    survive a self-relaunch, by introspecting the real parser used by
+    ``hermes`` itself.
+
+    A flag participates if its argparse Action carries
+    ``inherit_on_relaunch = True`` — set by ``_parser._inherited_flag``.
+    """
+    parser, _subparsers, chat_parser = build_top_level_parser()
+
+    table: list[tuple[str, bool]] = []
+    seen: set[tuple[str, bool]] = set()
+    for p in (parser, chat_parser):
+        for action in p._actions:
+            if not action.option_strings:
+                continue  # positional / no flag form
+            if not getattr(action, "inherit_on_relaunch", False):
+                continue
+            takes_value = action.nargs != 0  # store_true/false set nargs=0
+            for opt in action.option_strings:
+                key = (opt, takes_value)
+                if key not in seen:
+                    seen.add(key)
+                    table.append(key)
+
+    table.extend(PRE_ARGPARSE_INHERITED_FLAGS)
+    return table
+
+
+_INHERITED_FLAGS_TABLE = _build_inherited_flag_table()
+
+
+def _extract_inherited_flags(argv: Sequence[str]) -> list[str]:
+    """Pull out flags that should carry over into a self-relaunched hermes."""
+    flags: list[str] = []
+    i = 0
+    while i < len(argv):
+        arg = argv[i]
+        if "=" in arg:
+            key = arg.split("=", 1)[0]
+            for flag, _ in _INHERITED_FLAGS_TABLE:
+                if key == flag:
+                    flags.append(arg)
+                    break
+            i += 1
+            continue
+
+        for flag, takes_value in _INHERITED_FLAGS_TABLE:
+            if arg == flag:
+                flags.append(arg)
+                if takes_value and i + 1 < len(argv) and not argv[i + 1].startswith("-"):
+                    flags.append(argv[i + 1])
+                    i += 1
+                break
+        i += 1
+    return flags
+
+
+def resolve_hermes_bin() -> Optional[str]:
+    """Find the hermes entry point.
+
+    Priority:
+      1. ``sys.argv[0]`` if it resolves to a real executable.
+      2. ``shutil.which("hermes")`` on PATH.
+      3. ``None`` → caller should fall back to ``python -m hermes_cli.main``.
+    """
+    argv0 = sys.argv[0]
+
+    # Absolute path to an executable (covers nix store, venv wrappers, etc.)
+    if os.path.isabs(argv0) and os.path.isfile(argv0) and os.access(argv0, os.X_OK):
+        return argv0
+
+    # Relative path — resolve against CWD
+    if not argv0.startswith("-") and os.path.isfile(argv0):
+        abs_path = os.path.abspath(argv0)
+        if os.access(abs_path, os.X_OK):
+            return abs_path
+
+    # PATH lookup
+    path_bin = shutil.which("hermes")
+    if path_bin:
+        return path_bin
+
+    return None
+
+
+def build_relaunch_argv(
+    extra_args: Sequence[str],
+    *,
+    preserve_inherited: bool = True,
+    original_argv: Optional[Sequence[str]] = None,
+) -> list[str]:
+    """Construct an argv list for replacing the current process with hermes.
+
+    Args:
+        extra_args: Arguments to append (e.g. ``["--resume", id]``).
+        preserve_inherited: Whether to carry over UI / behaviour flags
+            tagged with ``inherit_on_relaunch`` in the parser.
+        original_argv: The original argv to scan for flags (defaults to
+            ``sys.argv[1:]``).
+    """
+    bin_path = resolve_hermes_bin()
+
+    if bin_path:
+        argv = [bin_path]
+    else:
+        argv = [sys.executable, "-m", "hermes_cli.main"]
+
+    src = list(original_argv) if original_argv is not None else list(sys.argv[1:])
+
+    if preserve_inherited:
+        argv.extend(_extract_inherited_flags(src))
+
+    argv.extend(extra_args)
+    return argv
+
+
+def relaunch(
+    extra_args: Sequence[str],
+    *,
+    preserve_inherited: bool = True,
+    original_argv: Optional[Sequence[str]] = None,
+) -> None:
+    """Replace the current process with a fresh hermes invocation."""
+    new_argv = build_relaunch_argv(
+        extra_args, preserve_inherited=preserve_inherited, original_argv=original_argv
+    )
+    os.execvp(new_argv[0], new_argv)

hermes_cli/setup.py

@@ -3249,33 +3249,14 @@ def run_setup_wizard(args):
     _offer_launch_chat()
 
 
-def _resolve_hermes_chat_argv() -> Optional[list[str]]:
-    """Resolve argv for launching ``hermes chat`` in a fresh process."""
-    hermes_bin = shutil.which("hermes")
-    if hermes_bin:
-        return [hermes_bin, "chat"]
-
-    try:
-        if importlib.util.find_spec("hermes_cli") is not None:
-            return [sys.executable, "-m", "hermes_cli.main", "chat"]
-    except Exception:
-        pass
-
-    return None
-
-
 def _offer_launch_chat():
     """Prompt the user to jump straight into chat after setup."""
     print()
     if not prompt_yes_no("Launch hermes chat now?", True):
         return
 
-    chat_argv = _resolve_hermes_chat_argv()
+    from hermes_cli.relaunch import relaunch
-    if not chat_argv:
+    relaunch(["chat"])
-        print_info("Could not relaunch Hermes automatically. Run 'hermes chat' manually.")
-        return
-
-    os.execvp(chat_argv[0], chat_argv)
 
 
 def _run_first_time_quick_setup(config: dict, hermes_home, is_existing: bool):

tests/hermes_cli/test_ignore_user_config_flags.py

@@ -224,22 +224,21 @@ class TestArgparseFlagsRegistered:
         assert args.ignore_rules is True
 
     def test_main_py_registers_both_flags(self):
-        """E2E: the real hermes_cli/main.py parser accepts both flags.
+        """E2E: the real hermes parser accepts both flags."""
+        from hermes_cli._parser import build_top_level_parser
 
-        We invoke the real argparse tree builder from hermes_cli.main.
+        parser, _subparsers, chat_parser = build_top_level_parser()
-        """
+
-        import hermes_cli.main as hm
+        top_dests = {a.dest for a in parser._actions}
+        chat_dests = {a.dest for a in chat_parser._actions}
+        assert "ignore_user_config" in top_dests
+        assert "ignore_rules" in top_dests
+        assert "ignore_user_config" in chat_dests
+        assert "ignore_rules" in chat_dests
 
-        # hm has a helper that builds the argparse tree inside main().
-        # We can extract it by catching the SystemExit on --help.
-        # Simpler: just grep the source for the flag strings. Both approaches
-        # are brittle; we use a combined test.
-        import inspect
-        src = inspect.getsource(hm)
-        assert '"--ignore-user-config"' in src, \
-            "chat subparser must register --ignore-user-config"
-        assert '"--ignore-rules"' in src, \
-            "chat subparser must register --ignore-rules"
         # And the cmd_chat env-var wiring must be present
+        import inspect
+        import hermes_cli.main as hm
+        src = inspect.getsource(hm)
         assert "HERMES_IGNORE_USER_CONFIG" in src
         assert "HERMES_IGNORE_RULES" in src

tests/hermes_cli/test_relaunch.py

@@ -0,0 +1,155 @@
+"""Tests for hermes_cli.relaunch — unified self-relaunch utility."""
+
+import sys
+
+import pytest
+
+from hermes_cli import relaunch as relaunch_mod
+
+
+class TestResolveHermesBin:
+    def test_prefers_absolute_argv0_when_executable(self, monkeypatch):
+        fake = "/nix/store/abc/bin/hermes"
+        monkeypatch.setattr(sys, "argv", [fake])
+        monkeypatch.setattr(relaunch_mod.os.path, "isfile", lambda p: p == fake)
+        monkeypatch.setattr(relaunch_mod.os, "access", lambda p, mode: p == fake)
+        assert relaunch_mod.resolve_hermes_bin() == fake
+
+    def test_resolves_relative_argv0(self, monkeypatch, tmp_path):
+        fake = tmp_path / "hermes"
+        fake.write_text("#!/bin/sh\n")
+        fake.chmod(0o755)
+        monkeypatch.setattr(sys, "argv", [str(fake.name)])
+        monkeypatch.chdir(tmp_path)
+        # Ensure we don't accidentally match a real 'hermes' on PATH
+        monkeypatch.setattr(relaunch_mod.shutil, "which", lambda _name: None)
+        assert relaunch_mod.resolve_hermes_bin() == str(fake)
+
+    def test_falls_back_to_path_which(self, monkeypatch):
+        monkeypatch.setattr(sys, "argv", ["-c"])  # not a real path
+        monkeypatch.setattr(
+            relaunch_mod.shutil, "which", lambda name: "/usr/bin/hermes" if name == "hermes" else None
+        )
+        assert relaunch_mod.resolve_hermes_bin() == "/usr/bin/hermes"
+
+    def test_returns_none_when_unresolvable(self, monkeypatch):
+        monkeypatch.setattr(sys, "argv", ["-c"])
+        monkeypatch.setattr(relaunch_mod.shutil, "which", lambda _name: None)
+        assert relaunch_mod.resolve_hermes_bin() is None
+
+
+class TestExtractInheritedFlags:
+    def test_extracts_tui_and_dev(self):
+        argv = ["--tui", "--dev", "chat"]
+        assert relaunch_mod._extract_inherited_flags(argv) == ["--tui", "--dev"]
+
+    def test_extracts_profile_with_value(self):
+        argv = ["--profile", "work", "chat"]
+        assert relaunch_mod._extract_inherited_flags(argv) == ["--profile", "work"]
+
+    def test_extracts_short_p_with_value(self):
+        argv = ["-p", "work"]
+        assert relaunch_mod._extract_inherited_flags(argv) == ["-p", "work"]
+
+    def test_extracts_equals_form(self):
+        argv = ["--profile=work", "--model=anthropic/claude-sonnet-4"]
+        assert relaunch_mod._extract_inherited_flags(argv) == [
+            "--profile=work",
+            "--model=anthropic/claude-sonnet-4",
+        ]
+
+    def test_skips_unknown_flags(self):
+        argv = ["--foo", "bar", "--tui"]
+        assert relaunch_mod._extract_inherited_flags(argv) == ["--tui"]
+
+    def test_does_not_consume_flag_like_value(self):
+        argv = ["--tui", "--resume", "abc123"]
+        assert relaunch_mod._extract_inherited_flags(argv) == ["--tui"]
+
+    def test_preserves_multiple_skills(self):
+        argv = ["-s", "foo", "-s", "bar", "--tui"]
+        assert relaunch_mod._extract_inherited_flags(argv) == ["-s", "foo", "-s", "bar", "--tui"]
+
+
+class TestInheritedFlagTable:
+    """Sanity-check the argparse-introspected table that drives extraction."""
+
+    def test_short_and_long_aliases_are_paired(self):
+        table = dict(relaunch_mod._INHERITED_FLAGS_TABLE)
+        # Each pair declared together in the parser shares takes_value.
+        for short, long_ in [
+            ("-p", "--profile"),
+            ("-m", "--model"),
+            ("-s", "--skills"),
+        ]:
+            assert table[short] == table[long_], f"{short}/{long_} disagree"
+
+    def test_store_true_flags_do_not_take_value(self):
+        table = dict(relaunch_mod._INHERITED_FLAGS_TABLE)
+        for flag in ["--tui", "--dev", "--yolo", "--ignore-user-config", "--ignore-rules"]:
+            assert table[flag] is False, f"{flag} should not take a value"
+
+    def test_value_flags_take_value(self):
+        table = dict(relaunch_mod._INHERITED_FLAGS_TABLE)
+        for flag in ["--profile", "--model", "--provider", "--skills"]:
+            assert table[flag] is True, f"{flag} should take a value"
+
+    def test_excluded_flags_are_not_inherited(self):
+        table = dict(relaunch_mod._INHERITED_FLAGS_TABLE)
+        # --worktree creates a new worktree per process; inheriting would
+        # orphan the parent's. Chat-only flags (--quiet/-Q, --verbose/-v,
+        # --source) can't be in argv at the existing relaunch callsites.
+        for flag in ["-w", "--worktree", "-Q", "--quiet", "-v", "--verbose", "--source"]:
+            assert flag not in table, f"{flag} should not be inherited"
+
+
+class TestBuildRelaunchArgv:
+    def test_uses_bin_when_available(self, monkeypatch):
+        monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: "/usr/bin/hermes")
+        argv = relaunch_mod.build_relaunch_argv(["--resume", "abc"])
+        assert argv[0] == "/usr/bin/hermes"
+
+    def test_falls_back_to_python_module(self, monkeypatch):
+        monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: None)
+        argv = relaunch_mod.build_relaunch_argv(["--resume", "abc"])
+        assert argv == [sys.executable, "-m", "hermes_cli.main", "--resume", "abc"]
+
+    def test_preserves_inherited_flags(self, monkeypatch):
+        monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: "/usr/bin/hermes")
+        original = ["--tui", "--dev", "--profile", "work", "sessions", "browse"]
+        argv = relaunch_mod.build_relaunch_argv(["--resume", "abc"], original_argv=original)
+        assert "--tui" in argv
+        assert "--dev" in argv
+        assert "--profile" in argv
+        assert "work" in argv
+        assert "--resume" in argv
+        assert "abc" in argv
+        # The original subcommand should not survive
+        assert "sessions" not in argv
+        assert "browse" not in argv
+
+    def test_can_disable_preserve(self, monkeypatch):
+        monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: "/usr/bin/hermes")
+        original = ["--tui", "chat"]
+        argv = relaunch_mod.build_relaunch_argv(
+            ["--resume", "abc"], preserve_inherited=False, original_argv=original
+        )
+        assert "--tui" not in argv
+        assert argv == ["/usr/bin/hermes", "--resume", "abc"]
+
+
+class TestRelaunch:
+    def test_calls_execvp(self, monkeypatch):
+        calls = []
+
+        def fake_execvp(path, argv):
+            calls.append((path, argv))
+            raise SystemExit(0)
+
+        monkeypatch.setattr(relaunch_mod.os, "execvp", fake_execvp)
+        monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: "/usr/bin/hermes")
+
+        with pytest.raises(SystemExit):
+            relaunch_mod.relaunch(["--resume", "abc"])
+
+        assert calls == [("/usr/bin/hermes", ["/usr/bin/hermes", "--resume", "abc"])]

tests/hermes_cli/test_setup.py

@@ -558,28 +558,12 @@ def test_vercel_setup_prefills_project_and_team_from_link_file(tmp_path, monkeyp
     assert defaults["    Vercel team ID"] == "linked-team"
 
 
-def test_resolve_hermes_chat_argv_prefers_which(monkeypatch):
+def test_offer_launch_chat_relaunches_via_bin(monkeypatch):
-    from hermes_cli import setup as setup_mod
-
-    monkeypatch.setattr(setup_mod.shutil, "which", lambda name: "/usr/local/bin/hermes" if name == "hermes" else None)
-
-    assert setup_mod._resolve_hermes_chat_argv() == ["/usr/local/bin/hermes", "chat"]
-
-
-def test_resolve_hermes_chat_argv_falls_back_to_module(monkeypatch):
-    from hermes_cli import setup as setup_mod
-
-    monkeypatch.setattr(setup_mod.shutil, "which", lambda _name: None)
-    monkeypatch.setattr(setup_mod.importlib.util, "find_spec", lambda name: object() if name == "hermes_cli" else None)
-
-    assert setup_mod._resolve_hermes_chat_argv() == [sys.executable, "-m", "hermes_cli.main", "chat"]
-
-
-def test_offer_launch_chat_execs_fresh_process(monkeypatch):
     from hermes_cli import setup as setup_mod
+    from hermes_cli import relaunch as relaunch_mod
 
     monkeypatch.setattr(setup_mod, "prompt_yes_no", lambda *_args, **_kwargs: True)
-    monkeypatch.setattr(setup_mod, "_resolve_hermes_chat_argv", lambda: ["/usr/local/bin/hermes", "chat"])
+    monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: "/usr/local/bin/hermes")
 
     exec_calls = []
 
@@ -587,7 +571,7 @@ def test_offer_launch_chat_execs_fresh_process(monkeypatch):
         exec_calls.append((path, argv))
         raise SystemExit(0)
 
-    monkeypatch.setattr(setup_mod.os, "execvp", fake_execvp)
+    monkeypatch.setattr(relaunch_mod.os, "execvp", fake_execvp)
 
     with pytest.raises(SystemExit):
         setup_mod._offer_launch_chat()
@@ -595,13 +579,22 @@ def test_offer_launch_chat_execs_fresh_process(monkeypatch):
     assert exec_calls == [("/usr/local/bin/hermes", ["/usr/local/bin/hermes", "chat"])]
 
 
-def test_offer_launch_chat_manual_fallback_when_unresolvable(monkeypatch, capsys):
+def test_offer_launch_chat_falls_back_to_module(monkeypatch):
     from hermes_cli import setup as setup_mod
+    from hermes_cli import relaunch as relaunch_mod
 
     monkeypatch.setattr(setup_mod, "prompt_yes_no", lambda *_args, **_kwargs: True)
-    monkeypatch.setattr(setup_mod, "_resolve_hermes_chat_argv", lambda: None)
+    monkeypatch.setattr(relaunch_mod, "resolve_hermes_bin", lambda: None)
 
-    setup_mod._offer_launch_chat()
+    exec_calls = []
 
-    captured = capsys.readouterr()
+    def fake_execvp(path, argv):
-    assert "Run 'hermes chat' manually" in captured.out
+        exec_calls.append((path, argv))
+        raise SystemExit(0)
+
+    monkeypatch.setattr(relaunch_mod.os, "execvp", fake_execvp)
+
+    with pytest.raises(SystemExit):
+        setup_mod._offer_launch_chat()
+
+    assert exec_calls == [(sys.executable, [sys.executable, "-m", "hermes_cli.main", "chat"])]