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The agent that grows with you
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13 kB · 373 lines
Python
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Lives in its own module so other modules (e.g. ``relaunch.py``) canintrospect the parser to discover which flags exist without running the``main`` fn.
Only the top-level parser and the ``chat`` subparser live here. Every othersubparser (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( "-t", "--toolsets", default=None, help="Comma-separated toolsets to enable for this invocation. Applies to -z/--oneshot and --tui.", ) 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