change that tab open change url inplace and get active tab from window id

README.md

@@ -8,7 +8,7 @@ Control your real, running browser from the terminal or a Python script — no h
 
 You have 40 tabs open. You want to close all the duplicates, group the GitHub ones, save your session before a meeting, and open a few URLs into a specific group — all from a script. That is what browser-cli is for.
 
-It works by pairing a small Chrome/Brave extension with a Python CLI tool. The extension has full access to your browser's tabs, windows, groups, and page DOM. The CLI talks to it in real time over a local socket.
+It works by pairing a small Chrome/Brave extension with a Python CLI tool. The extension has full access to your browser's tabs, windows, groups, and page DOM. The CLI talks to it in real time over a local IPC channel.
 
 ---
 
@@ -17,7 +17,7 @@ It works by pairing a small Chrome/Brave extension with a Python CLI tool. The e
 ```
 terminal / python script
         │
-        │  Unix socket  (/tmp/browser-cli.sock)
+        │  Local IPC  (Unix socket on Linux/macOS, named pipe on Windows)
         ▼
   Native Messaging Host  (Python process, launched by the browser)
         │
@@ -32,7 +32,7 @@ terminal / python script
 
 1. The extension calls `chrome.runtime.connectNative('com.browsercli.host')` on startup.
 2. The browser launches the native host Python process (registered in the OS).
-3. The native host opens a Unix socket at `/tmp/browser-cli.sock`.
+3. The native host opens a local IPC endpoint for the CLI.
 4. CLI commands connect to that socket, send a JSON command, and wait for the result.
 5. The native host relays the command to the extension via stdout, receives the result via stdin, and sends it back to the CLI.
 
@@ -70,7 +70,7 @@ The `install` command will:
 
 After install, **fully restart your browser** (Quit and reopen — not just close the window). The extension will connect to the native host automatically on startup.
 
-Only the `browser-cli` command needs to be on your `PATH`. The browser launches the native host wrapper directly from its absolute path in the native messaging manifest, and that wrapper points to the internally installed `native_host.py` copy.
+Only the `browser-cli` command needs to be on your `PATH`. The browser launches the native host wrapper directly from its absolute path in the native messaging manifest, and that wrapper points to the internally installed `native_host.py` copy. On Windows the install command also registers the host in the current user's Registry for the selected browser.
 
 ---
 
@@ -81,7 +81,7 @@ browser-cli/
 ├── browser_cli/
 │   ├── __init__.py        # Python API — BrowserCLI class and Python API entry point
 │   ├── cli.py             # Click CLI entry point
-│   ├── client.py          # Unix socket client used by CLI and API
+│   ├── client.py          # Local IPC client used by CLI and API
 │   ├── models.py          # Tab and Group helper models
 │   ├── native_host.py     # Native messaging host launched by the browser
 │   └── commands/
@@ -122,7 +122,7 @@ browser-cli/
 
 All commands are run with `uv run browser-cli [--browser ALIAS] <command>`.
 
-If exactly one browser instance is connected, commands auto-target it. Use `--browser ALIAS` when multiple browser instances are connected. `tabs list`, `tabs count`, `groups list`, `groups count`, and `windows list` are the only commands that aggregate across all active browsers when `--browser` is omitted; in that mode they show the source browser alias or UUID. You can inspect the active instances with `browser-cli clients` and assign a persistent profile alias from inside the target browser with `browser-cli clients rename --browser <current-alias> <new-alias>`. Closed browsers are removed from the client registry automatically.
+If exactly one browser instance is connected, commands auto-target it. Use `--browser ALIAS` when multiple browser instances are connected. `tabs list`, `tabs count`, `groups list`, `groups count`, `windows list`, and `session list` aggregate across all active browsers when `--browser` is omitted; in that mode they show the source browser alias or UUID. You can inspect the active instances with `browser-cli clients` and assign a persistent profile alias from inside the target browser with `browser-cli clients rename --browser <current-alias> <new-alias>`. Closed browsers are removed from the client registry automatically.
 
 Important: profile aliases are browser-instance aliases, not window aliases. Window aliases created with `windows rename` are only for targeting windows in commands like `nav open --window work`. If a browser instance has no explicit profile alias set, the native host gives it a generated UUID alias so multiple unaliased browsers stay distinct.
 
@@ -215,7 +215,11 @@ browser-cli groups add-tab 42 https://example.com        # by group ID
 
 browser-cli groups close 42                  # ungroup the group
 browser-cli groups move research --forward   # move group right
+browser-cli groups move research --right     # same as --forward
+browser-cli groups move research -r          # short right alias
 browser-cli groups move 42 --backward        # move group left
+browser-cli groups move 42 --left            # same as --backward
+browser-cli groups move 42 -l                # short left alias
 ```
 
 ### Windows

browser_cli/__init__.py

@@ -117,6 +117,10 @@ class BrowserCLI:
     def focus_url(self, pattern: str) -> None:
         self._cmd("navigate.focus", {"pattern": pattern})
 
+    def navigate_tab(self, tab_id: int, url: str) -> None:
+        """Navigate a specific tab to *url*."""
+        self._cmd("navigate.to", {"tabId": tab_id, "url": url})
+
     # ── Search ────────────────────────────────────────────────────────────
 
     def search(
@@ -168,6 +172,13 @@ class BrowserCLI:
         """Switch browser focus to a tab by ID."""
         self._cmd("tabs.active", {"tabId": tab_id})
 
+    def window_active_tab(self, window_id: int) -> Tab:
+        """Return active tab for a specific browser window."""
+        data = self._cmd("tabs.active_in_window", {"windowId": window_id})
+        if not isinstance(data, dict) or "id" not in data:
+            raise RuntimeError(f"No active tab found for window {window_id}")
+        return self._make_tab(data)
+
     def tabs_filter(self, pattern_or_filter: str | Callable[[Tab], bool] | Callable[[list[Tab]], Iterable[Tab]]) -> list[Tab]:
         """Return tabs filtered by pattern or a Python callable."""
         if isinstance(pattern_or_filter, str):
@@ -346,6 +357,17 @@ class BrowserCLI:
         return self._cmd("session.diff", {"nameA": name_a, "nameB": name_b})
 
     def session_list(self) -> list[dict]:
+        """Return saved sessions.
+
+        In implicit multi-browser mode each session dict includes a ``browser`` key.
+        """
+        multi_results = self._collect_multi_browser("session.list", {})
+        if multi_results:
+            return [
+                {**session, "browser": target.display_name}
+                for target, sessions in multi_results
+                for session in (sessions or [])
+            ]
         return self._cmd("session.list", {})
 
     def session_remove(self, name: str) -> None:

browser_cli/cli.py

@@ -21,7 +21,14 @@ from browser_cli.commands.dom import dom_group
 from browser_cli.commands.extract import extract_group
 from browser_cli.commands.session import session_group
 from browser_cli.commands.search import search_group
-from browser_cli.client import send_command, BrowserNotConnected, REGISTRY_PATH, display_browser_name
+from browser_cli.client import (
+    send_command,
+    BrowserNotConnected,
+    REGISTRY_PATH,
+    active_browser_targets,
+    display_browser_name,
+)
+from browser_cli.platform import install_base_dir, is_windows
 
 console = Console()
 
@@ -50,12 +57,43 @@ NATIVE_HOST_DIRS = {
     },
 }
 
+WINDOWS_NATIVE_HOST_REGISTRY_KEYS = {
+    "chrome": [r"Software\Google\Chrome\NativeMessagingHosts"],
+    "chromium": [r"Software\Chromium\NativeMessagingHosts"],
+    "brave": [r"Software\BraveSoftware\Brave-Browser\NativeMessagingHosts"],
+    "edge": [r"Software\Microsoft\Edge\NativeMessagingHosts"],
+    "vivaldi": [r"Software\Vivaldi\NativeMessagingHosts"],
+}
+
+
+def _rename_target_profile(target_browser: str | None) -> str | None:
+    if target_browser:
+        return target_browser
+
+    active = active_browser_targets()
+    if len(active) == 1:
+        return active[0].profile
+    return None
+
+
+def _ensure_unique_browser_alias(alias: str, target_browser: str | None) -> None:
+    target_profile = _rename_target_profile(target_browser)
+
+    profiles: dict[str, str] = {}
+    if REGISTRY_PATH.exists():
+        try:
+            profiles = json.loads(REGISTRY_PATH.read_text())
+        except Exception:
+            profiles = {}
+
+    if alias in profiles and alias != target_profile:
+        raise click.ClickException(f"Browser alias '{alias}' already exists")
+
 
 def _native_host_wrapper_path() -> Path:
-    if sys.platform == "darwin":
-        base_dir = Path.home() / "Library" / "Application Support" / "browser-cli"
-    else:
-        base_dir = Path(os.environ.get("XDG_DATA_HOME", Path.home() / ".local" / "share")) / "browser-cli"
+    base_dir = install_base_dir()
+    if is_windows():
+        return base_dir / "libexec" / "native-host.cmd"
     return base_dir / "libexec" / "native-host"
 
 
@@ -63,6 +101,30 @@ def _native_host_script_path() -> Path:
     return _native_host_wrapper_path().with_name("native_host.py")
 
 
+def _windows_registry_views():
+    import winreg
+
+    return [0, getattr(winreg, "KEY_WOW64_32KEY", 0), getattr(winreg, "KEY_WOW64_64KEY", 0)]
+
+
+def _register_windows_native_host(browser: str, manifest_path: Path) -> list[str]:
+    import winreg
+
+    installed = []
+    for key_path in WINDOWS_NATIVE_HOST_REGISTRY_KEYS[browser]:
+        full_key = f"{key_path}\\{NATIVE_HOST_NAME}"
+        for view in _windows_registry_views():
+            try:
+                access = winreg.KEY_WRITE | view
+                key = winreg.CreateKeyEx(winreg.HKEY_CURRENT_USER, full_key, 0, access)
+                with key:
+                    winreg.SetValueEx(key, "", 0, winreg.REG_SZ, str(manifest_path))
+                installed.append(f"HKCU\\{full_key}")
+            except OSError as e:
+                console.print(f"[yellow]Could not write registry key {full_key}: {e}[/yellow]")
+    return installed
+
+
 def _project_version() -> str:
     pyproject_path = Path(__file__).resolve().parent.parent / "pyproject.toml"
     try:
@@ -184,6 +246,7 @@ main.add_command(clients_group)
 def cmd_clients_rename(target_browser, alias):
     """Set the profile alias used to identify this browser instance."""
     try:
+        _ensure_unique_browser_alias(alias, target_browser)
         send_command("clients.rename_profile", {"alias": alias}, profile=target_browser)
     except BrowserNotConnected as e:
         console.print(f"[red]Error:[/red] {e}")
@@ -204,12 +267,16 @@ def cmd_install(browser):
     native_host_script_path = _native_host_script_path()
     wrapper_path.parent.mkdir(parents=True, exist_ok=True)
     shutil.copy2(Path(__file__).with_name("native_host.py"), native_host_script_path)
-    native_host_script_path.chmod(
-        native_host_script_path.stat().st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
-    )
-    wrapper_content = f'#!/bin/sh\nexec "{sys.executable}" "{native_host_script_path}" "$@"\n'
-    wrapper_path.write_text(wrapper_content)
-    wrapper_path.chmod(wrapper_path.stat().st_mode | stat.S_IEXEC | stat.S_IXGRP | stat.S_IXOTH)
+    if not is_windows():
+        native_host_script_path.chmod(
+            native_host_script_path.stat().st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
+        )
+        wrapper_content = f'#!/bin/sh\nexec "{sys.executable}" "{native_host_script_path}" "$@"\n'
+        wrapper_path.write_text(wrapper_content)
+        wrapper_path.chmod(wrapper_path.stat().st_mode | stat.S_IEXEC | stat.S_IXGRP | stat.S_IXOTH)
+    else:
+        wrapper_content = f'@echo off\r\n"{sys.executable}" "{native_host_script_path}" %*\r\n'
+        wrapper_path.write_text(wrapper_content, encoding="utf-8")
 
     # Ask for extension ID
     ext_urls = {
@@ -238,30 +305,41 @@ def cmd_install(browser):
         "allowed_origins": [f"chrome-extension://{extension_id}/"],
     }
 
-    # Write to OS native messaging dirs
-    platform = "darwin" if sys.platform == "darwin" else "linux"
-    dirs = NATIVE_HOST_DIRS[browser][platform]
-
     installed = []
-    for d in dirs:
-        try:
-            d.mkdir(parents=True, exist_ok=True)
-            manifest_path = d / f"{NATIVE_HOST_NAME}.json"
-            manifest_path.write_text(json.dumps(manifest, indent=2))
-            installed.append(manifest_path)
-        except Exception as e:
-            console.print(f"[yellow]Could not write to {d}: {e}[/yellow]")
+    if is_windows():
+        manifest_dir = wrapper_path.parent
+        manifest_dir.mkdir(parents=True, exist_ok=True)
+        manifest_path = manifest_dir / f"{NATIVE_HOST_NAME}.json"
+        manifest_path.write_text(json.dumps(manifest, indent=2), encoding="utf-8")
+        installed = _register_windows_native_host(browser, manifest_path)
+    else:
+        platform = "darwin" if sys.platform == "darwin" else "linux"
+        dirs = NATIVE_HOST_DIRS[browser][platform]
+
+        for d in dirs:
+            try:
+                d.mkdir(parents=True, exist_ok=True)
+                manifest_path = d / f"{NATIVE_HOST_NAME}.json"
+                manifest_path.write_text(json.dumps(manifest, indent=2))
+                installed.append(manifest_path)
+            except Exception as e:
+                console.print(f"[yellow]Could not write to {d}: {e}[/yellow]")
 
     if not installed:
         console.print("[red]Failed to install native host manifest[/red]")
         sys.exit(1)
 
     for p in installed:
-        console.print(f"[green]✓[/green] Wrote native host manifest: {p}")
+        if is_windows():
+            console.print(f"[green]✓[/green] Registered native host: {p}")
+        else:
+            console.print(f"[green]✓[/green] Wrote native host manifest: {p}")
     console.print(f"[green]✓[/green] Installed native host script: {native_host_script_path}")
     console.print(f"[green]✓[/green] Installed native host wrapper: {wrapper_path}")
+    if is_windows():
+        console.print("\n[green]✓[/green] Wrote native host manifest:", manifest_path)
 
-    console.print(f"\n[bold]Step 2:[/bold] Restart {browser.capitalize()} completely (Cmd/Ctrl+Q, then reopen)")
+    console.print(f"\n[bold]Step 2:[/bold] Restart {browser.capitalize()} completely (quit app, then reopen)")
     console.print("\n[green bold]✓ Installation complete![/green bold]")
     console.print("  After restarting the browser, try: [cyan]browser-cli tabs list[/cyan]")
 

browser_cli/client.py

@@ -1,11 +1,11 @@
 """
-Unix socket client — sends commands to the native host relay socket.
-Used by both the CLI and the public Python API.
+Local IPC client — sends commands to native host relay endpoint.
+Used by both CLI and public Python API.
 
 Profile selection order:
   1. Explicit `profile` argument to send_command()
   2. BROWSER_CLI_PROFILE environment variable
-  3. First entry in /tmp/.browser_cli/registry.json
+  3. First entry in runtime registry
   4. Otherwise, no browser can be resolved automatically
 """
 import json
@@ -14,11 +14,13 @@ import socket
 import struct
 import uuid
 from dataclasses import dataclass
+from multiprocessing.connection import Client as PipeClient
 from pathlib import Path
 from typing import Any
 
-SOCKET_DIR = Path("/tmp/.browser_cli")
-REGISTRY_PATH = SOCKET_DIR / "registry.json"
+from browser_cli.platform import endpoint_for_alias, is_windows, registry_path
+
+REGISTRY_PATH = registry_path()
 
 
 class BrowserNotConnected(Exception):
@@ -32,8 +34,10 @@ class BrowserTarget:
     socket_path: str
 
 
-def _active_sockets(reg: dict) -> dict:
-    """Return only entries whose socket file exists on disk."""
+def _active_endpoints(reg: dict) -> dict:
+    """Return only entries whose endpoint appears reachable."""
+    if is_windows():
+        return dict(reg)
     return {k: v for k, v in reg.items() if Path(v).exists()}
 
 
@@ -52,7 +56,7 @@ def active_browser_targets() -> list[BrowserTarget]:
         return []
     return [
         BrowserTarget(profile=profile, display_name=display_browser_name(profile, sock_path), socket_path=sock_path)
-        for profile, sock_path in _active_sockets(reg).items()
+        for profile, sock_path in _active_endpoints(reg).items()
     ]
 
 
@@ -68,8 +72,7 @@ def _resolve_socket(profile: str | None = None) -> str:
                     return reg[target]
             except Exception:
                 pass
-        safe = target.replace(" ", "_").replace("/", "_")
-        return str(SOCKET_DIR / f"{safe}.sock")
+        return endpoint_for_alias(target)
 
     # Auto-detect: error when multiple browser instances are active
     try:
@@ -107,10 +110,15 @@ def send_command(command: str, args: dict | None = None, profile: str | None = N
     framed = struct.pack("<I", len(payload)) + payload
 
     try:
-        with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as sock:
-            sock.connect(sock_path)
-            sock.sendall(framed)
-            response = _recv_all(sock)
+        if is_windows():
+            with PipeClient(sock_path, family="AF_PIPE") as conn:
+                conn.send_bytes(payload)
+                response = conn.recv_bytes()
+        else:
+            with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as sock:
+                sock.connect(sock_path)
+                sock.sendall(framed)
+                response = _recv_all(sock)
     except (FileNotFoundError, ConnectionRefusedError, OSError):
         profile_hint = f" (profile: {profile})" if profile else ""
         raise BrowserNotConnected(

browser_cli/commands/extract.py

@@ -1,10 +1,426 @@
-import click
 import json
+import re
+from html.parser import HTMLParser
+
+import click
 from browser_cli.client import send_command, BrowserNotConnected
 from rich.console import Console
 from rich.table import Table
 
 console = Console()
+_FENCE_RE = re.compile(r"```(?:[^\n`]*)\n.*?\n```", re.DOTALL)
+_ESCAPED_MARKDOWN_RE = re.compile(r"\\([_-])")
+_TABLE_SEPARATOR_RE = re.compile(r"^\|(?:\s*:?-{3,}:?\s*\|)+\s*$")
+
+
+class _HtmlNode:
+    def __init__(self, tag=None, attrs=None, text=None):
+        self.tag = tag
+        self.attrs = attrs or {}
+        self.text = text
+        self.children = []
+
+
+class _HtmlTreeBuilder(HTMLParser):
+    _VOID_TAGS = {"br", "hr", "img"}
+
+    def __init__(self):
+        super().__init__(convert_charrefs=True)
+        self.root = _HtmlNode(tag="document")
+        self._stack = [self.root]
+
+    def handle_starttag(self, tag, attrs):
+        node = _HtmlNode(tag=tag.lower(), attrs=dict(attrs))
+        self._stack[-1].children.append(node)
+        if node.tag not in self._VOID_TAGS:
+            self._stack.append(node)
+
+    def handle_startendtag(self, tag, attrs):
+        node = _HtmlNode(tag=tag.lower(), attrs=dict(attrs))
+        self._stack[-1].children.append(node)
+
+    def handle_endtag(self, tag):
+        lowered = tag.lower()
+        for index in range(len(self._stack) - 1, 0, -1):
+            if self._stack[index].tag == lowered:
+                del self._stack[index:]
+                break
+
+    def handle_data(self, data):
+        if data:
+            self._stack[-1].children.append(_HtmlNode(text=data))
+
+
+def _normalize_text(value):
+    return re.sub(r"\s+", " ", value or "").strip()
+
+
+def _normalize_inline(value):
+    value = value.replace("\xa0", " ")
+    value = re.sub(r"[ \t\r\f\v]+", " ", value)
+    value = re.sub(r" *\n *", "\n", value)
+    return value.strip()
+
+
+def _collapse_blank_lines(value):
+    value = re.sub(r"[ \t]+\n", "\n", value)
+    value = re.sub(r"\n{3,}", "\n\n", value)
+    return value.strip()
+
+
+def _escape_markdown(text):
+    return re.sub(r"([\\`[\]])", r"\\\1", text)
+
+
+def _escape_table_cell(text):
+    return text.replace("|", r"\|").replace("\n", " ").strip()
+
+
+def _iter_descendants(node):
+    for child in getattr(node, "children", []):
+        yield child
+        yield from _iter_descendants(child)
+
+
+def _has_class(node, class_name):
+    classes = (node.attrs.get("class") or "").split()
+    return class_name in classes
+
+
+def _is_code_block_node(node):
+    if not node or not node.tag:
+        return False
+    if node.attrs.get("data-is-code-block-view") == "true":
+        return True
+    return node.tag == "pre"
+
+
+def _inline_text(node):
+    if node.text is not None:
+        return _escape_markdown(node.text)
+    if not node.tag:
+        return ""
+
+    tag = node.tag
+    if tag == "br":
+        return "\n"
+    if tag == "img":
+        src = node.attrs.get("src") or ""
+        alt = _normalize_text(node.attrs.get("alt") or "")
+        if not src:
+            return ""
+        return f"![{_escape_markdown(alt)}]({src})" if alt else f"![]({src})"
+    if tag == "a":
+        text = _normalize_inline("".join(_inline_text(child) for child in node.children))
+        href = node.attrs.get("href") or ""
+        return f"[{text or href}]({href})" if href else text
+    if tag == "code":
+        text = _normalize_inline("".join(_inline_text(child) for child in node.children))
+        return f"`{text.replace('`', r'\\`')}`" if text else ""
+    if tag in {"strong", "b"}:
+        text = _normalize_inline("".join(_inline_text(child) for child in node.children))
+        return f"**{text}**" if text else ""
+    if tag in {"em", "i"}:
+        text = _normalize_inline("".join(_inline_text(child) for child in node.children))
+        return f"*{text}*" if text else ""
+
+    chunks = []
+    for child in node.children:
+        rendered = _inline_text(child)
+        if rendered:
+            chunks.append(rendered)
+            if child.tag in {"p", "div", "table", "ul", "ol", "pre"}:
+                chunks.append("\n")
+    return "".join(chunks)
+
+
+def _text_block(node):
+    return _collapse_blank_lines(_normalize_inline("".join(_inline_text(child) for child in node.children)))
+
+
+def _inner_text_preserve(node):
+    if node.text is not None:
+        return node.text
+    if not node.tag:
+        return ""
+    if node.tag == "br":
+        return ""
+    return "".join(_inner_text_preserve(child) for child in node.children)
+
+
+def _table_to_markdown(node):
+    rows = []
+    for descendant in _iter_descendants(node):
+        if descendant.tag != "tr":
+            continue
+        row = []
+        for cell in descendant.children:
+            if cell.tag in {"td", "th"}:
+                row.append(_escape_table_cell(_text_block(cell)))
+        if row:
+            rows.append(row)
+    if not rows:
+        return ""
+
+    widths = max(len(row) for row in rows)
+    normalized_rows = [row + [""] * (widths - len(row)) for row in rows]
+
+    headers = normalized_rows[0]
+    body_rows = normalized_rows[1:]
+    first_row_blank = all(not cell.strip() for cell in headers)
+    if first_row_blank and len(normalized_rows) > 1:
+        headers = normalized_rows[1]
+        body_rows = normalized_rows[2:]
+
+    has_thead = any(child.tag == "thead" for child in node.children)
+    first_row = next((child for child in _iter_descendants(node) if child.tag == "tr"), None)
+    first_row_has_th = bool(first_row and any(child.tag == "th" for child in first_row.children))
+    if not (has_thead or first_row_has_th or first_row_blank):
+        headers = [""] * widths
+        body_rows = normalized_rows
+
+    separator = ["---"] * widths
+    lines = [
+        f"| {' | '.join(headers)} |",
+        f"| {' | '.join(separator)} |",
+    ]
+    lines.extend(f"| {' | '.join(row)} |" for row in body_rows)
+    return "\n".join(lines)
+
+
+def _list_to_markdown(node, depth=0):
+    ordered = node.tag == "ol"
+    items = []
+    index = 1
+    for child in node.children:
+        if child.tag != "li":
+            continue
+        marker = f"{index}. " if ordered else "- "
+        index += 1
+        content = []
+        nested = []
+        for item_child in child.children:
+            if item_child.tag in {"ul", "ol"}:
+                nested.append(_list_to_markdown(item_child, depth + 1))
+            else:
+                content.append(_inline_text(item_child))
+        line = _collapse_blank_lines(_normalize_inline("".join(content)))
+        indent = "  " * depth
+        if line:
+            line_parts = line.splitlines()
+            items.append(f"{indent}{marker}{line_parts[0]}")
+            continuation_indent = f"{indent}{' ' * len(marker)}"
+            items.extend(f"{continuation_indent}{part}" for part in line_parts[1:])
+        items.extend(block for block in nested if block)
+    return "\n".join(items)
+
+
+def _code_block_to_markdown(node):
+    if node.tag == "pre":
+        text = _inner_text_preserve(node).rstrip("\n")
+        return f"```\n{text}\n```" if text else ""
+
+    lines = []
+    for descendant in _iter_descendants(node):
+        if descendant.tag and _has_class(descendant, "cm-line"):
+            lines.append(_inner_text_preserve(descendant))
+    code = "\n".join(lines).rstrip("\n")
+    return f"```\n{code}\n```" if code else ""
+
+
+def _block_to_markdown(node):
+    if node.text is not None:
+        return _normalize_text(node.text)
+    if not node.tag:
+        return ""
+    if _is_code_block_node(node):
+        return _code_block_to_markdown(node)
+    if node.tag == "table":
+        return _table_to_markdown(node)
+    if node.tag in {"ul", "ol"}:
+        return _list_to_markdown(node)
+    if re.fullmatch(r"h[1-6]", node.tag):
+        text = _text_block(node)
+        return f"{'#' * int(node.tag[1])} {text}" if text else ""
+    if node.tag in {"p", "figcaption"}:
+        return _text_block(node)
+    if node.tag == "blockquote":
+        content = _collapse_blank_lines("\n\n".join(filter(None, (_block_to_markdown(child) for child in node.children))))
+        return "\n".join(f"> {line}" if line else ">" for line in content.splitlines()) if content else ""
+    if node.tag == "hr":
+        return "---"
+    if node.tag == "img":
+        return _inline_text(node)
+
+    child_blocks = [block for block in (_block_to_markdown(child) for child in node.children) if block]
+    if child_blocks:
+        return _collapse_blank_lines("\n\n".join(child_blocks))
+    return _text_block(node)
+
+
+def _parse_table_row(line):
+    stripped = line.strip()
+    if not stripped.startswith("|") or not stripped.endswith("|"):
+        return None
+    return [cell.strip() for cell in stripped.strip("|").split("|")]
+
+
+def _repair_table_headers(lines):
+    repaired = []
+    index = 0
+    while index < len(lines):
+        if (
+            index + 2 < len(lines)
+            and _parse_table_row(lines[index]) is not None
+            and _TABLE_SEPARATOR_RE.match(lines[index + 1].strip())
+            and _parse_table_row(lines[index + 2]) is not None
+        ):
+            first = _parse_table_row(lines[index])
+            third = _parse_table_row(lines[index + 2])
+            if first and all(not cell for cell in first) and any(cell for cell in third):
+                repaired.append(lines[index + 2].strip())
+                repaired.append(lines[index + 1].strip())
+                index += 3
+                continue
+        repaired.append(lines[index].strip())
+        index += 1
+    return repaired
+
+
+def _repair_list_continuations(lines):
+    repaired = []
+    previous_was_list_item = False
+    previous_continuation_indent = ""
+
+    for line in lines:
+        stripped = line.strip()
+        list_match = re.match(r"^(\s*)([-*+]|\d+\.)\s+.+$", stripped)
+        is_markdown_block_start = (
+            not stripped
+            or stripped.startswith(("```", "#", ">", "|"))
+            or _TABLE_SEPARATOR_RE.match(stripped)
+            or re.match(r"^(\s*)([-*+]|\d+\.)\s+", stripped)
+        )
+
+        if previous_was_list_item and stripped and not is_markdown_block_start:
+            repaired.append(f"{previous_continuation_indent}{stripped}")
+            previous_was_list_item = False
+            continue
+
+        repaired.append(stripped)
+        if list_match:
+            marker = list_match.group(2)
+            base_indent = list_match.group(1)
+            previous_continuation_indent = f"{base_indent}{' ' * (len(marker) + 1)}"
+            previous_was_list_item = True
+        else:
+            previous_was_list_item = False
+
+    return repaired
+
+
+def _repair_flattened_diagram(text):
+    if "\n" in text:
+        return text
+    if sum(text.count(char) for char in "│▼├└") < 2:
+        return text
+
+    text = re.sub(r"\s{2,}([│▼])", r"\n   \1", text)
+    text = re.sub(r"([│▼])\s{2,}", r"\1\n", text)
+    text = re.sub(r"([│▼])(?=[^\s\n│▼├└])", r"\1\n", text)
+    text = re.sub(r"(?<=[^\s\n])([├└])", r"\n\1", text)
+    text = re.sub(r"([^\s\n])(\()", r"\1\n\2", text)
+    return "\n".join(line.rstrip() for line in text.splitlines() if line.strip())
+
+
+def _convert_dash_lists_to_branches(lines):
+    converted = []
+    index = 0
+    while index < len(lines):
+        match = re.match(r"^(\s*)-\s+(.*)$", lines[index])
+        if not match:
+            converted.append(lines[index])
+            index += 1
+            continue
+
+        indent = match.group(1)
+        items = []
+        while index < len(lines):
+            next_match = re.match(rf"^{re.escape(indent)}-\s+(.*)$", lines[index])
+            if not next_match:
+                break
+            items.append(next_match.group(1))
+            index += 1
+
+        for item_index, item in enumerate(items):
+            branch = "└" if item_index == len(items) - 1 else "├"
+            converted.append(f"{indent}{branch} {item}")
+    return converted
+
+
+def _clean_code_block(code):
+    lines = [line.rstrip() for line in code.splitlines()]
+    while lines and not lines[0].strip():
+        lines.pop(0)
+    while lines and not lines[-1].strip():
+        lines.pop()
+
+    flattened = _repair_flattened_diagram("\n".join(lines))
+    lines = flattened.splitlines() if flattened else []
+    lines = [
+        f"   {line.strip()}"
+        if line.strip() in {"│", "▼"} and not re.match(r"^\s+[│▼]\s*$", line)
+        else line
+        for line in lines
+    ]
+    lines = _convert_dash_lists_to_branches(lines)
+    return "\n".join(lines)
+
+
+def _clean_markdown_output(markdown):
+    if not markdown:
+        return ""
+
+    pieces = []
+    last_index = 0
+    for match in _FENCE_RE.finditer(markdown):
+        prose = markdown[last_index:match.start()]
+        if prose:
+            cleaned = _ESCAPED_MARKDOWN_RE.sub(r"\1", prose)
+            lines = [line.strip() for line in cleaned.splitlines()]
+            lines = _repair_table_headers(lines)
+            lines = _repair_list_continuations(lines)
+            cleaned = "\n".join(lines)
+            cleaned = _collapse_blank_lines(cleaned)
+            if cleaned:
+                pieces.append(cleaned)
+
+        fence = match.group(0)
+        header, _, tail = fence.partition("\n")
+        body, _, _ = tail.rpartition("\n")
+        cleaned_body = _clean_code_block(body)
+        pieces.append(f"{header}\n{cleaned_body}\n```" if cleaned_body else f"{header}\n```")
+        last_index = match.end()
+
+    trailing = markdown[last_index:]
+    if trailing:
+        cleaned = _ESCAPED_MARKDOWN_RE.sub(r"\1", trailing)
+        lines = [line.strip() for line in cleaned.splitlines()]
+        lines = _repair_table_headers(lines)
+        lines = _repair_list_continuations(lines)
+        cleaned = "\n".join(lines)
+        cleaned = _collapse_blank_lines(cleaned)
+        if cleaned:
+            pieces.append(cleaned)
+
+    return "\n\n".join(piece for piece in pieces if piece)
+
+
+def _convert_html_to_markdown(html):
+    parser = _HtmlTreeBuilder()
+    parser.feed(html or "")
+    markdown = _block_to_markdown(parser.root)
+    return _clean_markdown_output(markdown)
 
 
 def _handle(command, args=None):
@@ -80,4 +496,8 @@ def extract_html():
 def extract_markdown(selector):
     """Extract the page's main content as Markdown."""
     markdown = _handle("extract.markdown", {"selector": selector})
+    if (markdown or "").lstrip().startswith("<"):
+        markdown = _convert_html_to_markdown(markdown)
+    else:
+        markdown = _clean_markdown_output(markdown or "")
     click.echo(markdown or "", nl=not (markdown or "").endswith("\n"))

browser_cli/commands/groups.py

@@ -159,12 +159,14 @@ def group_add_tab(group, url):
 
 @group_group.command("move")
 @click.argument("group")
-@click.option("--forward", is_flag=True, help="Move group one position to the right")
-@click.option("--backward", is_flag=True, help="Move group one position to the left")
+@click.option("-f", "--forward", "forward", is_flag=True, help="Move group one position to the right")
+@click.option("-b", "--backward", "backward", is_flag=True, help="Move group one position to the left")
+@click.option("-r", "--right", "forward", is_flag=True, help="Move group one position to the right")
+@click.option("-l", "--left", "backward", is_flag=True, help="Move group one position to the left")
 def group_move(group, forward, backward):
-    """Move a tab group forward or backward (name or ID)."""
+    """Move a tab group forward/backward or right/left (name or ID)."""
     if not forward and not backward:
-        console.print("[red]Specify --forward or --backward[/red]")
+        console.print("[red]Specify --forward/--right or --backward/--left[/red]")
         raise SystemExit(1)
     result = _handle("group.move", {"group": group, "forward": forward, "backward": backward})
     if isinstance(result, dict) and not result.get("moved"):

browser_cli/commands/session.py

@@ -1,14 +1,13 @@
 import click
-import json
-from browser_cli.client import send_command, BrowserNotConnected
+from browser_cli.client import active_browser_targets, send_command, BrowserNotConnected
 from rich.console import Console
 
 console = Console()
 
 
-def _handle(command, args=None):
+def _handle(command, args=None, profile=None):
     try:
-        return send_command(command, args or {})
+        return send_command(command, args or {}, profile=profile)
     except BrowserNotConnected as e:
         console.print(f"[red]Error:[/red] {e}")
         raise SystemExit(1)
@@ -17,6 +16,23 @@ def _handle(command, args=None):
         raise SystemExit(1)
 
 
+def _handle_multi(command, args=None, profile=None):
+    try:
+        return send_command(command, args or {}, profile=profile)
+    except (BrowserNotConnected, RuntimeError):
+        return None
+
+
+def _multi_browser_targets():
+    root = click.get_current_context().find_root()
+    if root.obj.get("browser_explicit"):
+        return []
+    targets = active_browser_targets()
+    if len(targets) <= 1:
+        return []
+    return targets
+
+
 @click.group("session")
 def session_group():
     """Save and restore browser sessions."""
@@ -71,18 +87,35 @@ def session_diff(name_a, name_b):
 def session_list():
     """List all saved sessions."""
     from rich.table import Table
-    sessions = _handle("session.list")
+    targets = _multi_browser_targets()
+    show_browser = bool(targets)
+    if targets:
+        sessions = []
+        for target in targets:
+            result = _handle_multi("session.list", profile=target.profile)
+            if result is None:
+                continue
+            sessions.extend({**session, "browser": target.display_name} for session in result)
+        if not sessions:
+            console.print("[red]Error:[/red] Cannot resolve a browser socket automatically.")
+            raise SystemExit(1)
+    else:
+        sessions = _handle("session.list")
     if not sessions:
         console.print("[yellow]No saved sessions[/yellow]")
         return
     table = Table(show_header=True, header_style="bold cyan")
+    if show_browser:
+        table.add_column("Browser")
     table.add_column("Name")
     table.add_column("Tabs", width=6)
     table.add_column("Saved at")
     for s in sessions:
         from datetime import datetime
         saved = datetime.fromtimestamp(s["savedAt"] / 1000).strftime("%Y-%m-%d %H:%M") if s.get("savedAt") else ""
-        table.add_row(s["name"], str(s["tabs"]), saved)
+        row = [s.get("browser", "")] if show_browser else []
+        row.extend([s["name"], str(s["tabs"]), saved])
+        table.add_row(*row)
     console.print(table)
 
 

browser_cli/commands/tabs.py

@@ -98,13 +98,15 @@ def tabs_close(tab_id, inactive, duplicates):
 
 @tabs_group.command("move")
 @click.argument("tab_id", type=int)
-@click.option("--forward", is_flag=True, help="Move one position to the right")
-@click.option("--backward", is_flag=True, help="Move one position to the left")
+@click.option("-f", "--forward", "forward", is_flag=True, help="Move one position to the right")
+@click.option("-b", "--backward", "backward", is_flag=True, help="Move one position to the left")
+@click.option("-r", "--right", "forward", is_flag=True, help="Move one position to the right")
+@click.option("-l", "--left", "backward", is_flag=True, help="Move one position to the left")
 @click.option("--group", "group_id", type=int, default=None, help="Move to tab group ID")
 @click.option("--window", "window_id", type=int, default=None, help="Move to window ID")
 @click.option("--index", type=int, default=None, help="Absolute position index in target")
 def tabs_move(tab_id, forward, backward, group_id, window_id, index):
-    """Move a tab. Use --forward/--backward for relative movement."""
+    """Move a tab. Use --forward/--backward or --right/--left for relative movement."""
     _handle("tabs.move", {
         "tabId": tab_id, "forward": forward, "backward": backward,
         "groupId": group_id, "windowId": window_id, "index": index,

browser_cli/models.py

@@ -87,11 +87,8 @@ class Tab:
         return self._b()._cmd("tabs.html", {"tabId": self.id})
 
     def open(self, url: str, *, background: bool = False) -> None:
-        """Navigate this tab to *url*."""
-        # Re-uses navigate.open which opens a new tab; for in-place navigation
-        # we target by tabId via the focus then navigate approach. For now we
-        # open a new tab in the same window as a convenience.
-        self._b()._cmd("navigate.open", {"url": url, "background": background})
+        """Navigate this tab to *url* in place."""
+        self._b().navigate_tab(self.id, url)
 
 
 # ── Group ─────────────────────────────────────────────────────────────────────

browser_cli/native_host.py

@@ -2,13 +2,9 @@
 """
 Native Messaging Host for browser-cli.
 
-Chrome launches this process when the extension calls connectNative().
-It relays messages between the Chrome extension (via stdin/stdout using the
-Native Messaging protocol) and the CLI (via a Unix domain socket).
-
-Multi-browser support: the extension sends a "hello" message on startup
-with a profile alias. The host uses that alias to create a unique socket
-path and registers it in a shared registry file.
+Chrome launches this process when extension calls connectNative().
+It relays messages between extension (stdin/stdout Native Messaging protocol)
+and CLI (local IPC endpoint: Unix socket on Unix, named pipe on Windows).
 """
 import json
 import os
@@ -18,15 +14,15 @@ import struct
 import sys
 import threading
 import uuid
+from multiprocessing.connection import Listener
 from pathlib import Path
 
-SOCKET_DIR = Path("/tmp/.browser_cli")
-REGISTRY_PATH = SOCKET_DIR / "registry.json"
-DEFAULT_ALIAS = "default"
+from browser_cli.platform import DEFAULT_ALIAS, endpoint_for_alias, is_windows, registry_path, runtime_dir
 
 SOCKET_PATH: str = ""          # set after hello handshake
 PENDING: dict[str, queue.Queue] = {}
 PENDING_LOCK = threading.Lock()
+REGISTRY_PATH = registry_path()
 
 # --- Native Messaging protocol (4-byte LE length prefix + UTF-8 JSON) ---
 
@@ -71,8 +67,7 @@ def _registry_remove(alias: str) -> None:
 
 
 def _socket_path_for(alias: str) -> str:
-    safe = alias.replace(" ", "_").replace("/", "_")
-    return str(SOCKET_DIR / f"{safe}.sock")
+    return endpoint_for_alias(alias)
 
 
 def _resolve_profile_alias(first_msg: dict | None) -> str:
@@ -113,6 +108,16 @@ def stdin_reader(alias: str):
 # --- Thread B: accept CLI socket connections ---
 
 def socket_server(sock_path: str):
+    if is_windows():
+        while True:
+            try:
+                listener = Listener(sock_path, family="AF_PIPE")
+                conn = listener.accept()
+            except OSError:
+                break
+            threading.Thread(target=handle_cli_connection, args=(conn, listener), daemon=True).start()
+        return
+
     path = Path(sock_path)
     if path.exists():
         path.unlink()
@@ -126,12 +131,12 @@ def socket_server(sock_path: str):
             conn, _ = sock.accept()
         except OSError:
             break
-        threading.Thread(target=handle_cli_connection, args=(conn,), daemon=True).start()
+        threading.Thread(target=handle_cli_connection, args=(conn, None), daemon=True).start()
 
 
-def handle_cli_connection(conn: socket.socket) -> None:
+def handle_cli_connection(conn, listener=None) -> None:
     try:
-        data = _recv_all(conn)
+        data = conn.recv_bytes() if is_windows() else _recv_all(conn)
         if not data:
             return
         cmd = json.loads(data)
@@ -154,14 +159,24 @@ def handle_cli_connection(conn: socket.socket) -> None:
         with PENDING_LOCK:
             PENDING.pop(msg_id, None)
 
-        _send_all(conn, json.dumps(result).encode("utf-8"))
+        response = json.dumps(result).encode("utf-8")
+        if is_windows():
+            conn.send_bytes(response)
+        else:
+            _send_all(conn, response)
     except Exception as exc:
         try:
-            _send_all(conn, json.dumps({"success": False, "error": str(exc)}).encode("utf-8"))
+            response = json.dumps({"success": False, "error": str(exc)}).encode("utf-8")
+            if is_windows():
+                conn.send_bytes(response)
+            else:
+                _send_all(conn, response)
         except Exception:
             pass
     finally:
         conn.close()
+        if listener is not None:
+            listener.close()
 
 
 # --- Socket helpers (length-prefixed framing) ---
@@ -191,7 +206,8 @@ def _recv_exact(conn: socket.socket, n: int) -> bytes | None:
 
 def _cleanup(alias: str):
     try:
-        Path(_socket_path_for(alias)).unlink(missing_ok=True)
+        if not is_windows():
+            Path(_socket_path_for(alias)).unlink(missing_ok=True)
     except Exception:
         pass
     _registry_remove(alias)
@@ -215,7 +231,7 @@ def main():
                     PENDING[msg_id] = q
                 write_native_message(sys.stdout.buffer, first_msg)
 
-    SOCKET_DIR.mkdir(mode=0o700, exist_ok=True)
+    runtime_dir().mkdir(mode=0o700, exist_ok=True)
     sock_path = _socket_path_for(alias)
     _registry_add(alias, sock_path)
 

browser_cli/platform.py

@@ -0,0 +1,36 @@
+import os
+import sys
+from pathlib import Path
+
+APP_NAME = "browser-cli"
+RUNTIME_DIRNAME = ".browser_cli"
+DEFAULT_ALIAS = "default"
+
+def is_windows() -> bool:
+    return sys.platform.startswith("win")
+
+def runtime_dir() -> Path:
+    if is_windows():
+        base = Path(os.environ.get("LOCALAPPDATA", Path.home() / "AppData" / "Local"))
+        return base / APP_NAME
+    return Path("/tmp") / RUNTIME_DIRNAME
+
+def registry_path() -> Path:
+    return runtime_dir() / "registry.json"
+
+def install_base_dir() -> Path:
+    if is_windows():
+        return runtime_dir()
+    if sys.platform == "darwin":
+        return Path.home() / "Library" / "Application Support" / APP_NAME
+    return Path(os.environ.get("XDG_DATA_HOME", Path.home() / ".local" / "share")) / APP_NAME
+
+def sanitize_alias(alias:str) -> str:
+    cleaned = "".join(ch if ch.isalnum() or ch in "._-" else "_" for ch in alias.strip())
+    return cleaned or DEFAULT_ALIAS
+
+def endpoint_for_alias(alias:str) -> str:
+    safe = sanitize_alias(alias)
+    if is_windows():
+        return rf"\\.\pipe\browser-cli-{safe}"
+    return str(runtime_dir() / f"{safe}.sock")

examples/demo.sh

@@ -41,7 +41,7 @@ $CLI windows list
 pause
 
 header "3/8 · Create 'research' group and open URLs into it"
-$CLI group create research
+$CLI groups create research
 echo ""
 $CLI nav open https://example.com   --group research --bg
 $CLI nav open https://wikipedia.org --group research --bg

extension/background.js

@@ -121,6 +121,7 @@ async function dispatch(command, args) {
   switch (command) {
     // ── Navigation ────────────────────────────────────────────────────────
     case "navigate.open":    return navOpen(args);
+    case "navigate.to":      return navTo(args);
     case "navigate.reload":  return navReload(args, false);
     case "navigate.hard_reload": return navReload(args, true);
     case "navigate.back":    return navBack(args);
@@ -132,6 +133,7 @@ async function dispatch(command, args) {
     case "tabs.close":        return tabsClose(args);
     case "tabs.move":         return tabsMove(args);
     case "tabs.active":       return tabsActive(args);
+    case "tabs.active_in_window": return tabsActiveInWindow(args);
     case "tabs.filter":       return tabsFilter(args);
     case "tabs.count":        return tabsCount(args);
     case "tabs.query":        return tabsQuery(args);
@@ -191,9 +193,11 @@ async function dispatch(command, args) {
 
 // ── Navigation ────────────────────────────────────────────────────────────────
 
-async function navOpen({ url, background, window: windowName, group: groupNameOrId }) {
+async function navOpen({ url, background, window: windowName, windowId: explicitWindowId, group: groupNameOrId }) {
   let windowId;
-  if (windowName) {
+  if (explicitWindowId != null) {
+    windowId = explicitWindowId;
+  } else if (windowName) {
     const aliases = await getAliases();
     const entry = Object.entries(aliases).find(([, v]) => v === windowName);
     if (entry) windowId = parseInt(entry[0]);
@@ -221,6 +225,11 @@ async function navOpen({ url, background, window: windowName, group: groupNameOr
   return { id: tab.id, url: tab.url };
 }
 
+async function navTo({ tabId, url }) {
+  const tab = await chrome.tabs.update(tabId, { url });
+  return { id: tab.id, url: tab.url || url };
+}
+
 async function navReload({ tabId }, bypassCache) {
   const tab = tabId ? { id: tabId } : await getActiveTab();
   await chrome.tabs.reload(tab.id, { bypassCache });
@@ -326,6 +335,15 @@ async function tabsActive({ tabId }) {
   return { tabId };
 }
 
+async function tabsActiveInWindow({ windowId }) {
+  const activeTabs = await chrome.tabs.query({ windowId, active: true });
+  const tab = activeTabs[0];
+  if (!tab) {
+    throw new Error(`No active tab found for window ${windowId}`);
+  }
+  return tabInfo(tab);
+}
+
 async function tabsFilter({ pattern }) {
   const all = await chrome.tabs.query({});
   return all.filter(t => t.url && t.url.includes(pattern)).map(tabInfo);
@@ -659,6 +677,32 @@ function contentDispatch(funcName, args) {
       "li", "main", "nav", "ol", "p", "pre", "section", "table", "tbody", "td", "tfoot",
       "th", "thead", "tr", "ul"
     ]);
+    const NOISE_SELECTOR = [
+      "script",
+      "style",
+      "noscript",
+      "template",
+      "svg",
+      "canvas",
+      "iframe",
+      "dialog",
+      "button",
+      "input",
+      "textarea",
+      "select",
+      "option",
+      "form",
+      "[hidden]",
+      "[aria-hidden='true']",
+      ".sr-only",
+      "[class*='sr-only']",
+      "[class*='file-tile']",
+      "form[data-type='unified-composer']",
+      ".composer-btn",
+      "[data-composer-surface='true']",
+      "#thread-bottom-container",
+      "[data-testid*='action-button']",
+    ].join(", ");
 
     function normalizeText(value) {
       return value.replace(/\s+/g, " ").trim();
@@ -681,7 +725,7 @@ function contentDispatch(funcName, args) {
     }
 
     function escapeMarkdown(text) {
-      return text.replace(/([\\`*_{}\[\]()#+\-!|>])/g, "\\$1");
+      return text.replace(/([\\`[\]])/g, "\\$1");
     }
 
     function escapeTableCell(text) {
@@ -692,12 +736,55 @@ function contentDispatch(funcName, args) {
       return attr || fallback || "";
     }
 
+    function isNoiseElement(node) {
+      if (!node || node.nodeType !== Node.ELEMENT_NODE) return false;
+      const tag = node.tagName.toLowerCase();
+      if (["script", "style", "noscript", "template", "svg", "canvas", "iframe", "dialog"].includes(tag)) return true;
+      if (["button", "input", "textarea", "select", "option", "form"].includes(tag)) return true;
+      if (node.hasAttribute("hidden")) return true;
+      if ((node.getAttribute("aria-hidden") || "").toLowerCase() === "true") return true;
+      if (node.matches(".sr-only, [class*='sr-only']")) return true;
+      if (node.matches("[class*='file-tile'], form[data-type='unified-composer'], .composer-btn, [data-composer-surface='true'], #thread-bottom-container")) return true;
+      if (node.matches("[data-testid*='action-button']")) return true;
+      return false;
+    }
+
     function stripNoise(root) {
       const clone = root.cloneNode(true);
-      clone.querySelectorAll("script, style, noscript, template").forEach(node => node.remove());
+      clone.querySelectorAll(NOISE_SELECTOR).forEach(node => node.remove());
       return clone;
     }
 
+    function candidateScore(node) {
+      const text = normalizeText(node.innerText || "");
+      if (!text) return -Infinity;
+
+      const headings = node.querySelectorAll("h1, h2, h3, h4, h5, h6").length;
+      const paragraphs = node.querySelectorAll("p").length;
+      const listItems = node.querySelectorAll("li").length;
+      const tables = node.querySelectorAll("table").length;
+      const codeBlocks = node.querySelectorAll("pre, code").length;
+      const images = node.querySelectorAll("img, figure").length;
+      const mainLike = node.matches("main, article, [role='main']") ? 1 : 0;
+      const proseBlocks = node.matches(".markdown, .prose, [data-message-author-role='assistant']") ? 1 : 0;
+      const buttons = node.querySelectorAll("button, input, textarea, select").length;
+      const forms = node.querySelectorAll("form").length;
+      const svgs = node.querySelectorAll("svg, canvas").length;
+
+      return text.length
+        + (mainLike * 4000)
+        + (proseBlocks * 5000)
+        + (headings * 250)
+        + (paragraphs * 60)
+        + (listItems * 35)
+        + (tables * 80)
+        + (codeBlocks * 60)
+        + (images * 25)
+        - (buttons * 120)
+        - (forms * 200)
+        - (svgs * 40);
+    }
+
     function pickRoot() {
       if (selector) {
         const matched = document.querySelector(selector);
@@ -705,10 +792,12 @@ function contentDispatch(funcName, args) {
         return matched;
       }
 
-      const candidates = Array.from(document.querySelectorAll("main, article, [role='main']"))
+      const candidates = Array.from(document.querySelectorAll(
+        "main, article, [role='main'], section, .markdown, .prose, [data-message-author-role]"
+      ))
         .filter(node => normalizeText(node.innerText || "").length > 0);
       if (!candidates.length) return document.body;
-      candidates.sort((a, b) => (b.innerText || "").length - (a.innerText || "").length);
+      candidates.sort((a, b) => candidateScore(b) - candidateScore(a));
       return candidates[0];
     }
 
@@ -717,9 +806,9 @@ function contentDispatch(funcName, args) {
         return escapeMarkdown(node.textContent || "");
       }
       if (node.nodeType !== Node.ELEMENT_NODE) return "";
+      if (isNoiseElement(node)) return "";
 
       const tag = node.tagName.toLowerCase();
-      if (tag === "script" || tag === "style" || tag === "noscript" || tag === "template") return "";
       if (tag === "br") return "\n";
       if (tag === "img") {
         const src = absoluteUrl(node.getAttribute("src"), node.src);
@@ -762,6 +851,92 @@ function contentDispatch(funcName, args) {
       return collapseBlankLines(normalizeInline(Array.from(node.childNodes).map(inlineText).join("")));
     }
 
+    function preserveNodeText(node) {
+      if (node.nodeType === Node.TEXT_NODE) {
+        return node.textContent || "";
+      }
+      if (node.nodeType !== Node.ELEMENT_NODE) return "";
+
+      const tag = node.tagName.toLowerCase();
+      if (tag === "br") return "\n";
+
+      const parts = [];
+      for (const child of node.childNodes) {
+        const rendered = preserveNodeText(child);
+        if (!rendered) continue;
+        parts.push(rendered);
+      }
+
+      if (["div", "p", "li"].includes(tag)) {
+        return `${parts.join("")}\n`;
+      }
+      return parts.join("");
+    }
+
+    function repairFlattenedDiagram(text) {
+      if (text.includes("\n")) return text;
+      const markerCount = (text.match(/[│▼├└]/g) || []).length;
+      if (markerCount < 2) return text;
+
+      let repaired = text;
+      repaired = repaired.replace(/\s{2,}([│▼])/g, "\n   $1");
+      repaired = repaired.replace(/([│▼])\s{2,}/g, "$1\n");
+      repaired = repaired.replace(/([│▼])(?=[^\s\n│▼├└])/g, "$1\n");
+      repaired = repaired.replace(/(?<=[^\s\n])([├└])/g, "\n$1");
+      repaired = repaired.replace(/([^\s\n])(\()/g, "$1\n$2");
+      return repaired
+        .split("\n")
+        .map(line => line.replace(/\s+$/, ""))
+        .filter(line => line.trim())
+        .join("\n");
+    }
+
+    function convertDashListsToBranches(lines) {
+      const converted = [];
+      let index = 0;
+      while (index < lines.length) {
+        const match = lines[index].match(/^(\s*)-\s+(.*)$/);
+        if (!match) {
+          converted.push(lines[index]);
+          index += 1;
+          continue;
+        }
+
+        const indent = match[1];
+        const items = [];
+        while (index < lines.length) {
+          const nextMatch = lines[index].match(new RegExp(`^${indent.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}-\\s+(.*)$`));
+          if (!nextMatch) break;
+          items.push(nextMatch[1]);
+          index += 1;
+        }
+
+        items.forEach((item, itemIndex) => {
+          const branch = itemIndex === items.length - 1 ? "└" : "├";
+          converted.push(`${indent}${branch} ${item}`);
+        });
+      }
+      return converted;
+    }
+
+    function normalizeCodeBlock(text) {
+      let lines = text.replace(/\r\n?/g, "\n").split("\n").map(line => line.replace(/\s+$/, ""));
+      while (lines.length && !lines[0].trim()) lines.shift();
+      while (lines.length && !lines[lines.length - 1].trim()) lines.pop();
+
+      const flattened = repairFlattenedDiagram(lines.join("\n"));
+      lines = flattened ? flattened.split("\n") : [];
+      lines = lines.map(line => {
+        const trimmed = line.trim();
+        if ((trimmed === "│" || trimmed === "▼") && !/^\s+[│▼]\s*$/.test(line)) {
+          return `   ${trimmed}`;
+        }
+        return line;
+      });
+      lines = convertDashListsToBranches(lines);
+      return lines.join("\n");
+    }
+
     function tableToMarkdown(table) {
       const rows = Array.from(table.querySelectorAll("tr"))
         .map(row => Array.from(row.children)
@@ -780,10 +955,16 @@ function contentDispatch(funcName, args) {
 
       let headers = normalizedRows[0];
       let bodyRows = normalizedRows.slice(1);
+      const firstRowIsBlank = headers.every(cell => !cell.trim());
+      if (firstRowIsBlank && normalizedRows.length > 1) {
+        headers = normalizedRows[1];
+        bodyRows = normalizedRows.slice(2);
+      }
+
       const firstRow = table.querySelector("tr");
       const thead = table.querySelector("thead");
       const firstRowHasTh = firstRow && Array.from(firstRow.children).some(cell => cell.tagName === "TH");
-      if (!(thead || firstRowHasTh)) {
+      if (!(thead || firstRowHasTh || firstRowIsBlank)) {
         headers = new Array(widths).fill("");
         bodyRows = normalizedRows;
       }
@@ -818,7 +999,12 @@ function contentDispatch(funcName, args) {
         }
 
         const line = collapseBlankLines(normalizeInline(content.join("")));
-        if (line) items.push(`${indent}${marker}${line}`);
+        if (line) {
+          const lineParts = line.split("\n");
+          items.push(`${indent}${marker}${lineParts[0]}`);
+          const continuationIndent = `${indent}${" ".repeat(marker.length)}`;
+          lineParts.slice(1).forEach(part => items.push(`${continuationIndent}${part}`));
+        }
         nested.filter(Boolean).forEach(block => items.push(block));
       });
       return items.join("\n");
@@ -829,13 +1015,21 @@ function contentDispatch(funcName, args) {
         return normalizeText(node.textContent || "");
       }
       if (node.nodeType !== Node.ELEMENT_NODE) return "";
+      if (isNoiseElement(node)) return "";
 
       const tag = node.tagName.toLowerCase();
-      if (tag === "script" || tag === "style" || tag === "noscript" || tag === "template") return "";
       if (tag === "table") return tableToMarkdown(node);
       if (tag === "ul" || tag === "ol") return listToMarkdown(node);
+      if (node.matches(".cm-editor[data-is-code-block-view='true']")) {
+        const lines = Array.from(node.querySelectorAll(".cm-line")).map(line => {
+          const text = preserveNodeText(line);
+          return text === "\n" ? "" : text.replace(/\n$/, "");
+        });
+        const code = normalizeCodeBlock(lines.join("\n"));
+        return code ? `\`\`\`\n${code}\n\`\`\`` : "";
+      }
       if (tag === "pre") {
-        const code = node.innerText.replace(/\n$/, "");
+        const code = normalizeCodeBlock(preserveNodeText(node));
         return code ? `\`\`\`\n${code}\n\`\`\`` : "";
       }
       if (tag === "blockquote") {
@@ -1011,9 +1205,21 @@ async function clientsRenameProfile({ alias }) {
 // ── Helpers ───────────────────────────────────────────────────────────────────
 
 async function getActiveTab() {
-  const [tab] = await chrome.tabs.query({ active: true, lastFocusedWindow: true });
-  if (!tab) throw new Error("No active tab found");
-  return tab;
+  const activeTabs = await chrome.tabs.query({ active: true });
+  if (!activeTabs.length) throw new Error("No active tab found");
+
+  const windows = await chrome.windows.getAll({ populate: false });
+  const focusedWindowIds = new Set(windows.filter(window => window.focused).map(window => window.id));
+
+  const chooseTab = (predicate) => activeTabs.find(predicate);
+  const byFocusAndScriptable = tab => focusedWindowIds.has(tab.windowId) && isScriptableUrl(tab.url || tab.pendingUrl || "");
+  const byScriptable = tab => isScriptableUrl(tab.url || tab.pendingUrl || "");
+  const byFocus = tab => focusedWindowIds.has(tab.windowId);
+
+  return chooseTab(byFocusAndScriptable)
+    || chooseTab(byScriptable)
+    || chooseTab(byFocus)
+    || activeTabs[0];
 }
 
 async function resolveGroupId(nameOrId) {

extension/manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 3,
   "name": "browser-cli",
-  "version": "0.5.6",
+  "version": "0.5.8",
   "description": "Control your browser from the terminal via browser-cli",
   "permissions": [
     "tabs",

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "browser-cli"
-version = "0.5.6"
+version = "0.5.8"
 description = "Control your real running browser from the terminal via a Chrome extension"
 requires-python = ">=3.10"
 dependencies = [

tests/test_api.py

@@ -154,6 +154,12 @@ class TestNavigation:
         b.focus_url("github.com")
         mock_send.assert_called_once_with("navigate.focus", {"pattern": "github.com"}, profile=None)
 
+    def test_navigate_tab(self, b, mock_send):
+        b.navigate_tab(5, "https://example.com")
+        mock_send.assert_called_once_with(
+            "navigate.to", {"tabId": 5, "url": "https://example.com"}, profile=None
+        )
+
     def test_profile_forwarded(self, b_profile, mock_send):
         b_profile.reload()
         mock_send.assert_called_once_with("navigate.reload", {"tabId": None}, profile="brave")
@@ -244,6 +250,18 @@ class TestTabs:
         b.tabs_active(10)
         mock_send.assert_called_once_with("tabs.active", {"tabId": 10}, profile=None)
 
+    def test_window_active_tab(self, b, mock_send):
+        mock_send.return_value = TAB_DATA
+        tab = b.window_active_tab(1)
+        assert isinstance(tab, Tab)
+        assert tab.id == 10
+        mock_send.assert_called_once_with("tabs.active_in_window", {"windowId": 1}, profile=None)
+
+    def test_window_active_tab_missing_raises(self, b, mock_send):
+        mock_send.return_value = None
+        with pytest.raises(RuntimeError, match="No active tab found for window 1"):
+            b.window_active_tab(1)
+
     def test_tabs_filter(self, b, mock_send):
         mock_send.return_value = [TAB_DATA]
         tabs = b.tabs_filter("example")
@@ -488,6 +506,39 @@ class TestWindows:
         mock_send.assert_called_once_with("windows.open", {"url": "https://example.com"}, profile=None)
 
 
+class TestSession:
+    def test_session_list(self, b, mock_send):
+        mock_send.return_value = [{"name": "saved", "tabs": 3, "savedAt": 1712707200000}]
+
+        result = b.session_list()
+
+        assert result == [{"name": "saved", "tabs": 3, "savedAt": 1712707200000}]
+        mock_send.assert_called_once_with("session.list", {}, profile=None)
+
+    def test_session_list_multi_browser_adds_browser(self, b, mock_send):
+        with patch(
+            "browser_cli.active_browser_targets",
+            return_value=[
+                BrowserTarget("default", "uuid-1", "/tmp/uuid-1.sock"),
+                BrowserTarget("work", "work", "/tmp/work.sock"),
+            ],
+        ):
+            mock_send.side_effect = [
+                [{"name": "first", "tabs": 2, "savedAt": 1712707200000}],
+                [{"name": "second", "tabs": 5, "savedAt": 1712707300000}],
+            ]
+            result = b.session_list()
+
+        assert result == [
+            {"name": "first", "tabs": 2, "savedAt": 1712707200000, "browser": "uuid-1"},
+            {"name": "second", "tabs": 5, "savedAt": 1712707300000, "browser": "work"},
+        ]
+        assert mock_send.call_args_list == [
+            call("session.list", {}, profile="default"),
+            call("session.list", {}, profile="work"),
+        ]
+
+
 # ── Tab model ─────────────────────────────────────────────────────────────────
 
 class TestTabModel:
@@ -531,7 +582,15 @@ class TestTabModel:
     def test_open(self, tab, mock_send):
         tab.open("https://new.example.com")
         mock_send.assert_called_once_with(
-            "navigate.open", {"url": "https://new.example.com", "background": False}, profile=None
+            "navigate.to", {"tabId": 10, "url": "https://new.example.com"}, profile=None
+        )
+
+    def test_open_background_changes_same_tab(self, tab, mock_send):
+        tab.open("https://new.example.com", background=True)
+        mock_send.assert_called_once_with(
+            "navigate.to",
+            {"tabId": 10, "url": "https://new.example.com"},
+            profile=None,
         )
 
     def test_unbound_raises(self):

tests/test_cli.py

@@ -1,10 +1,13 @@
 from pathlib import Path
+from types import SimpleNamespace
+import sys
 
 from click.testing import CliRunner
 from unittest.mock import patch
 
 from browser_cli.cli import main, _project_version
 from browser_cli.client import BrowserTarget
+from browser_cli.commands.extract import _clean_markdown_output, _convert_html_to_markdown
 
 def _expected_version() -> str:
     pyproject = Path(__file__).resolve().parent.parent / "pyproject.toml"
@@ -30,26 +33,106 @@ def test_project_version_falls_back_to_installed_package_metadata():
         assert _project_version() == "9.9.9"
 
 def test_clients_rename_uses_command_level_browser_target():
-    with patch("browser_cli.cli.send_command") as send_command:
+    with patch("browser_cli.cli.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json")), patch(
+        "browser_cli.cli.send_command"
+    ) as send_command:
         result = CliRunner().invoke(main, ["clients", "rename", "--browser", "old-id", "work"])
 
     assert result.exit_code == 0
     send_command.assert_called_once_with("clients.rename_profile", {"alias": "work"}, profile="old-id")
 
 def test_clients_rename_uses_global_browser_target_when_set():
-    with patch("browser_cli.cli.send_command") as send_command:
+    with patch("browser_cli.cli.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json")), patch(
+        "browser_cli.cli.send_command"
+    ) as send_command:
         result = CliRunner().invoke(main, ["--browser", "old-id", "clients", "rename", "work"])
 
     assert result.exit_code == 0
     send_command.assert_called_once_with("clients.rename_profile", {"alias": "work"}, profile=None)
     assert "Restart the browser" not in result.output
 
+def test_clients_rename_rejects_duplicate_alias(tmp_path):
+    registry_path = tmp_path / "registry.json"
+    registry_path.write_text('{"work": "/tmp/work.sock", "old-id": "/tmp/old-id.sock"}', encoding="utf-8")
+
+    with patch("browser_cli.cli.REGISTRY_PATH", registry_path), patch("browser_cli.cli.send_command") as send_command:
+        result = CliRunner().invoke(main, ["clients", "rename", "--browser", "old-id", "work"])
+
+    assert result.exit_code != 0
+    assert "Browser alias 'work' already exists" in result.output
+    send_command.assert_not_called()
+
+def test_clients_rename_allows_same_alias_for_same_target(tmp_path):
+    registry_path = tmp_path / "registry.json"
+    registry_path.write_text('{"work": "/tmp/work.sock"}', encoding="utf-8")
+
+    with patch("browser_cli.cli.REGISTRY_PATH", registry_path), patch("browser_cli.cli.send_command") as send_command:
+        result = CliRunner().invoke(main, ["clients", "rename", "--browser", "work", "work"])
+
+    assert result.exit_code == 0
+    send_command.assert_called_once_with("clients.rename_profile", {"alias": "work"}, profile="work")
+
 def test_install_help_lists_supported_browsers():
     result = CliRunner().invoke(main, ["install", "--help"])
 
     assert result.exit_code == 0
     assert "[chrome|chromium|brave|edge|vivaldi]" in result.output
 
+
+def test_install_windows_registers_native_host(tmp_path, monkeypatch):
+    local_app_data = tmp_path / "LocalAppData"
+    extension_dir = tmp_path / "extension"
+    extension_dir.mkdir()
+    native_host_src = tmp_path / "native_host.py"
+    native_host_src.write_text("print('ok')", encoding="utf-8")
+    writes = []
+
+    class FakeKey:
+        def __init__(self, path):
+            self.path = path
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, exc_type, exc, tb):
+            return False
+
+    fake_winreg = SimpleNamespace(
+        HKEY_CURRENT_USER="HKCU",
+        KEY_WRITE=0x20006,
+        KEY_WOW64_32KEY=0x0200,
+        KEY_WOW64_64KEY=0x0100,
+        REG_SZ=1,
+    )
+
+    def fake_create_key(root, path, reserved, access):
+        return FakeKey(path)
+
+    def fake_set_value(key, name, reserved, reg_type, value):
+        writes.append((key.path, name, value))
+
+    fake_winreg.CreateKeyEx = fake_create_key
+    fake_winreg.SetValueEx = fake_set_value
+
+    monkeypatch.setenv("LOCALAPPDATA", str(local_app_data))
+
+    with patch("browser_cli.cli.is_windows", return_value=True), patch(
+        "browser_cli.cli.Path.home", return_value=tmp_path
+    ), patch("browser_cli.cli.click.prompt", return_value="abc123"), patch(
+        "browser_cli.cli.shutil.copy2"
+    ) as copy2, patch("browser_cli.cli.Path.write_text") as write_text, patch.dict(
+        sys.modules, {"winreg": fake_winreg}
+    ):
+        copy2.side_effect = lambda src, dst: Path(dst).write_text(native_host_src.read_text(encoding="utf-8"), encoding="utf-8")
+        result = CliRunner().invoke(main, ["install", "edge"])
+
+    assert result.exit_code == 0
+    assert any("Software\\Microsoft\\Edge\\NativeMessagingHosts\\com.browsercli.host" in path for path, _, _ in writes)
+    assert "Registered native host" in result.output
+    assert "Wrote native host manifest" in result.output
+    wrapper_writes = [call.args[0] for call in write_text.call_args_list if call.args]
+    assert any("@echo off" in text for text in wrapper_writes)
+
 def test_clients_exits_cleanly_when_registry_is_missing():
     with patch("browser_cli.cli.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json")):
         result = CliRunner().invoke(main, ["clients"])
@@ -183,6 +266,29 @@ def test_group_list_leaves_unnamed_group_cell_empty():
     assert "grey" in result.output
 
 
+def test_tabs_move_accepts_right_short_alias():
+    with patch("browser_cli.commands.tabs.send_command") as send_command:
+        result = CliRunner().invoke(main, ["tabs", "move", "12", "-r"])
+
+    assert result.exit_code == 0
+    send_command.assert_called_once_with(
+        "tabs.move",
+        {"tabId": 12, "forward": True, "backward": False, "groupId": None, "windowId": None, "index": None},
+        profile=None,
+    )
+
+
+def test_groups_move_accepts_left_short_alias():
+    with patch("browser_cli.commands.groups.send_command") as send_command:
+        result = CliRunner().invoke(main, ["groups", "move", "research", "-l"])
+
+    assert result.exit_code == 0
+    send_command.assert_called_once_with(
+        "group.move", {"group": "research", "forward": False, "backward": True}, profile=None
+    )
+
+
+
 def test_windows_list_multi_browser_shows_browser_column():
     def fake_send_command(command, args=None, profile=None):
         assert command == "windows.list"
@@ -204,6 +310,46 @@ def test_windows_list_multi_browser_shows_browser_column():
     assert "work" in result.output
 
 
+def test_session_list_multi_browser_shows_browser_column():
+    def fake_send_command(command, args=None, profile=None):
+        assert command == "session.list"
+        return [{"name": f"{profile}-session", "tabs": 2, "savedAt": 1712707200000}]
+
+    with patch(
+        "browser_cli.commands.session.active_browser_targets",
+        return_value=[
+            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
+            BrowserTarget("work", "work", "/tmp/work.sock"),
+        ],
+    ), patch("browser_cli.commands.session.send_command", side_effect=fake_send_command):
+        result = CliRunner().invoke(main, ["session", "list"])
+
+    assert result.exit_code == 0
+    assert "Browser" in result.output
+    assert "uuid-1" in result.output
+    assert "work" in result.output
+    assert "default-session" in result.output
+    assert "work-session" in result.output
+
+
+def test_session_list_with_explicit_browser_does_not_show_browser_column():
+    with patch(
+        "browser_cli.commands.session.active_browser_targets",
+        return_value=[
+            BrowserTarget("default", "uuid-1", "/tmp/default.sock"),
+            BrowserTarget("work", "work", "/tmp/work.sock"),
+        ],
+    ), patch(
+        "browser_cli.commands.session.send_command",
+        return_value=[{"name": "work-session", "tabs": 2, "savedAt": 1712707200000}],
+    ) as send_command:
+        result = CliRunner().invoke(main, ["--browser", "work", "session", "list"])
+
+    assert result.exit_code == 0
+    assert "Browser" not in result.output
+    send_command.assert_called_once_with("session.list", {}, profile=None)
+
+
 def test_windows_open_passes_url():
     with patch("browser_cli.commands.windows.send_command", return_value={"id": 7}) as send_command:
         result = CliRunner().invoke(main, ["windows", "open", "https://example.com"])
@@ -213,7 +359,7 @@ def test_windows_open_passes_url():
     send_command.assert_called_once_with("windows.open", {"url": "https://example.com"}, profile=None)
 
 def test_extract_markdown_command():
-    with patch("browser_cli.commands.extract.send_command", return_value="# Title\n") as send_command:
+    with patch("browser_cli.commands.extract.send_command", return_value="# Title") as send_command:
         result = CliRunner().invoke(main, ["extract", "markdown"])
 
     assert result.exit_code == 0
@@ -221,9 +367,160 @@ def test_extract_markdown_command():
     send_command.assert_called_once_with("extract.markdown", {"selector": None})
 
 def test_extract_markdown_command_with_selector():
-    with patch("browser_cli.commands.extract.send_command", return_value="## Post\n") as send_command:
+    with patch("browser_cli.commands.extract.send_command", return_value="## Post") as send_command:
         result = CliRunner().invoke(main, ["extract", "markdown", "--selector", "article"])
 
     assert result.exit_code == 0
     assert result.output == "## Post\n"
     send_command.assert_called_once_with("extract.markdown", {"selector": "article"})
+
+
+def test_clean_markdown_output_removes_escaped_underscores_and_dashes():
+    assert _clean_markdown_output(r"hello\_world \- item") == "hello_world - item"
+
+
+def test_clean_markdown_output_trims_useless_whitespace():
+    raw = "  # Title  \n\n\n  paragraph with space  \n   next line\t \n"
+    assert _clean_markdown_output(raw) == "# Title\n\nparagraph with space\nnext line"
+
+
+def test_clean_markdown_output_repairs_empty_table_header_rows():
+    raw = (
+        "|  |  |  |\n"
+        "| --- | --- | --- |\n"
+        "| Bereich | Plan | Ist |\n"
+        "| A | B | C |\n"
+    )
+    assert _clean_markdown_output(raw) == (
+        "| Bereich | Plan | Ist |\n"
+        "| --- | --- | --- |\n"
+        "| A | B | C |"
+    )
+
+
+def test_clean_markdown_output_preserves_graph_code_blocks():
+    raw = "```\n\nA\n  │\n  ▼\nB\n\n```"
+    assert _clean_markdown_output(raw) == "```\nA\n  │\n  ▼\nB\n```"
+
+
+def test_clean_markdown_output_renders_code_block_list_branches():
+    raw = "```\nPlattformen\n- Omnifact\n- Open WebUI + Ollama\n- Le Chat\n```"
+    assert _clean_markdown_output(raw) == (
+        "```\n"
+        "Plattformen\n"
+        "├ Omnifact\n"
+        "├ Open WebUI + Ollama\n"
+        "└ Le Chat\n"
+        "```"
+    )
+
+
+def test_clean_markdown_output_unflattens_graph_code_blocks():
+    raw = (
+        "```\n"
+        "Golden Set   │   ▼Promptfoo(Testausführung)   │   ▼UpTrain(Qualitätsbewertung)   │   "
+        "▼Langfuse(Logging / Observability)   │   ▼Plattformen├ Omnifact├ Open WebUI + Ollama└ Le Chat\n"
+        "```"
+    )
+    assert _clean_markdown_output(raw) == (
+        "```\n"
+        "Golden Set\n"
+        "   │\n"
+        "   ▼\n"
+        "Promptfoo\n"
+        "(Testausführung)\n"
+        "   │\n"
+        "   ▼\n"
+        "UpTrain\n"
+        "(Qualitätsbewertung)\n"
+        "   │\n"
+        "   ▼\n"
+        "Langfuse\n"
+        "(Logging / Observability)\n"
+        "   │\n"
+        "   ▼\n"
+        "Plattformen\n"
+        "├ Omnifact\n"
+        "├ Open WebUI + Ollama\n"
+        "└ Le Chat\n"
+        "```"
+    )
+
+
+def test_extract_markdown_command_repairs_malformed_tables_and_code_blocks():
+    raw = (
+        "|  |  |  |\n"
+        "| --- | --- | --- |\n"
+        "| Bereich | Plan | Ist |\n"
+        "| Eval-Stack | Testumgebung | funktionsfähig |\n\n"
+        "```\n"
+        "Golden Set   │   ▼Promptfoo(Testausführung)   │   ▼Plattformen├ Omnifact└ Le Chat\n"
+        "```"
+    )
+    with patch("browser_cli.commands.extract.send_command", return_value=raw):
+        result = CliRunner().invoke(main, ["extract", "markdown"])
+
+    assert result.exit_code == 0
+    assert "| Bereich | Plan | Ist |" in result.output
+    assert "|  |  |  |" not in result.output
+    assert "Golden Set\n   │\n   ▼\nPromptfoo\n(Testausführung)" in result.output
+    assert "├ Omnifact" in result.output
+    assert "└ Le Chat" in result.output
+
+
+def test_convert_html_to_markdown_normalizes_blank_table_header_rows():
+    html = """
+    <main>
+      <table>
+        <tr><td></td><td></td><td></td><td></td></tr>
+        <tr><td>Risiko</td><td>Beschreibung</td><td>Auswirkung</td><td>Gegenmaßnahme</td></tr>
+        <tr><td>Datenschutz</td><td>X</td><td>Y</td><td>Z</td></tr>
+      </table>
+    </main>
+    """
+    markdown = _convert_html_to_markdown(html)
+    assert "| Risiko | Beschreibung | Auswirkung | Gegenmaßnahme |" in markdown
+    assert "|  |  |  |  |" not in markdown
+
+
+def test_convert_html_to_markdown_preserves_codemirror_graph_blocks():
+    html = """
+    <main>
+      <h1>Teil 5 - Eval-Stack Architektur</h1>
+      <div class="cm-editor" data-is-code-block-view="true" contenteditable="false">
+        <div class="cm-line">Golden Set</div>
+        <div class="cm-line">   │</div>
+        <div class="cm-line">   ▼</div>
+        <div class="cm-line">Promptfoo</div>
+        <div class="cm-line">(Testausführung)</div>
+        <div class="cm-line">   │</div>
+        <div class="cm-line">   ▼</div>
+        <div class="cm-line">Plattformen</div>
+        <div class="cm-line">- Omnifact</div>
+        <div class="cm-line">- Open WebUI + Ollama</div>
+        <div class="cm-line">- Le Chat</div>
+      </div>
+    </main>
+    """
+    markdown = _convert_html_to_markdown(html)
+    assert "```\nGolden Set\n   │\n   ▼\nPromptfoo" in markdown
+    assert "├ Omnifact" in markdown
+    assert "└ Le Chat" in markdown
+
+
+def test_convert_html_to_markdown_indents_multiline_list_items():
+    html = """
+    <main>
+      <h2>2. <strong>Zielarchitektur</strong></h2>
+      <ul>
+        <li>
+          <p>Unternehmensdaten → RAG → KI-Orchestrierung →<br>Local LLMs / API Modelle / Spezialmodelle</p>
+        </li>
+      </ul>
+    </main>
+    """
+    markdown = _convert_html_to_markdown(html)
+    assert (
+        "- Unternehmensdaten → RAG → KI-Orchestrierung →\n"
+        "  Local LLMs / API Modelle / Spezialmodelle"
+    ) in markdown

tests/test_client.py

@@ -4,6 +4,7 @@ from pathlib import Path
 import pytest
 
 from browser_cli.client import BrowserNotConnected, _resolve_socket, active_browser_targets, display_browser_name
+from browser_cli.platform import endpoint_for_alias
 
 def test_resolve_socket_raises_when_registry_missing(monkeypatch):
     monkeypatch.delenv("BROWSER_CLI_PROFILE", raising=False)
@@ -46,6 +47,13 @@ def test_display_browser_name_uses_uuid_stem_for_default():
     )
 
 
+def test_resolve_socket_uses_platform_endpoint_for_explicit_alias(monkeypatch):
+    monkeypatch.delenv("BROWSER_CLI_PROFILE", raising=False)
+    monkeypatch.setattr("browser_cli.client.REGISTRY_PATH", Path("/nonexistent/browser-cli-registry.json"))
+
+    assert _resolve_socket("work") == endpoint_for_alias("work")
+
+
 def test_active_browser_targets_filters_stale_entries(monkeypatch, tmp_path):
     active_socket = tmp_path / "work.sock"
     active_socket.write_text("")
@@ -60,3 +68,16 @@ def test_active_browser_targets_filters_stale_entries(monkeypatch, tmp_path):
     assert len(targets) == 1
     assert targets[0].profile == "work"
     assert targets[0].display_name == "work"
+
+
+def test_active_browser_targets_keeps_windows_registry_entries(monkeypatch, tmp_path):
+    registry_path = tmp_path / "registry.json"
+    registry_path.write_text(json.dumps({"work": r"\\.\pipe\browser-cli-work"}))
+
+    monkeypatch.setattr("browser_cli.client.REGISTRY_PATH", registry_path)
+    monkeypatch.setattr("browser_cli.client.is_windows", lambda: True)
+
+    targets = active_browser_targets()
+
+    assert len(targets) == 1
+    assert targets[0].socket_path == r"\\.\pipe\browser-cli-work"

tests/test_native_host.py

@@ -18,8 +18,9 @@ def test_cleanup_removes_socket_and_registry_entry(monkeypatch, tmp_path):
     registry_path = tmp_path / "registry.json"
     registry_path.write_text(json.dumps({alias: str(socket_path), "other": str(tmp_path / "other.sock")}))
 
-    monkeypatch.setattr(native_host, "SOCKET_DIR", tmp_path)
     monkeypatch.setattr(native_host, "REGISTRY_PATH", registry_path)
+    monkeypatch.setattr(native_host, "_socket_path_for", lambda alias: str(socket_path))
+    monkeypatch.setattr(native_host, "is_windows", lambda: False)
 
     native_host._cleanup(alias)
 
@@ -41,6 +42,18 @@ def test_stdin_reader_cleans_up_on_eof(monkeypatch):
     assert cleaned == ["work"]
 
 
+def test_cleanup_windows_skips_socket_unlink(monkeypatch, tmp_path):
+    registry_path = tmp_path / "registry.json"
+    registry_path.write_text(json.dumps({"work": r"\\.\pipe\browser-cli-work"}))
+
+    monkeypatch.setattr(native_host, "REGISTRY_PATH", registry_path)
+    monkeypatch.setattr(native_host, "is_windows", lambda: True)
+
+    native_host._cleanup("work")
+
+    assert json.loads(registry_path.read_text()) == {}
+
+
 def test_stdin_reader_cleans_up_on_bye(monkeypatch):
     cleaned = []
     messages = iter([{"type": "bye"}])

tests/test_nav.py

@@ -81,3 +81,24 @@ def test_nav_open_in_background(browser):
         assert not new_tab.get("active"), "background tab should not be active"
     finally:
         browser("tabs.close", {"tabId": new_id})
+
+
+def test_nav_to_updates_existing_tab(browser):
+    result = browser("navigate.open", {"url": "https://example.com", "background": True})
+    tab_id = result["id"]
+
+    try:
+        before_ids = {t["id"] for t in browser("tabs.list")}
+        updated = browser("navigate.to", {"tabId": tab_id, "url": "https://example.org"})
+        assert updated["id"] == tab_id
+
+        tabs = browser("tabs.list")
+        after_ids = {t["id"] for t in tabs}
+        assert after_ids == before_ids
+        tab = next(t for t in tabs if t["id"] == tab_id)
+        assert "example.org" in (tab.get("url") or "")
+    finally:
+        try:
+            browser("tabs.close", {"tabId": tab_id})
+        except Exception:
+            pass

tests/test_platform.py

@@ -0,0 +1,30 @@
+from pathlib import Path
+
+from browser_cli.platform import endpoint_for_alias, install_base_dir, registry_path, runtime_dir
+
+
+def test_runtime_dir_defaults_to_tmp_on_unix(monkeypatch):
+    monkeypatch.setattr("browser_cli.platform.is_windows", lambda: False)
+
+    assert runtime_dir() == Path("/tmp/.browser_cli")
+
+
+def test_runtime_dir_uses_localappdata_on_windows(monkeypatch, tmp_path):
+    monkeypatch.setattr("browser_cli.platform.is_windows", lambda: True)
+    monkeypatch.setenv("LOCALAPPDATA", str(tmp_path / "LocalAppData"))
+
+    assert runtime_dir() == tmp_path / "LocalAppData" / "browser-cli"
+    assert registry_path() == tmp_path / "LocalAppData" / "browser-cli" / "registry.json"
+
+
+def test_endpoint_for_alias_uses_pipe_on_windows(monkeypatch):
+    monkeypatch.setattr("browser_cli.platform.is_windows", lambda: True)
+
+    assert endpoint_for_alias("work/browser") == r"\\.\pipe\browser-cli-work_browser"
+
+
+def test_install_base_dir_uses_runtime_dir_on_windows(monkeypatch, tmp_path):
+    monkeypatch.setattr("browser_cli.platform.is_windows", lambda: True)
+    monkeypatch.setenv("LOCALAPPDATA", str(tmp_path / "LocalAppData"))
+
+    assert install_base_dir() == tmp_path / "LocalAppData" / "browser-cli"

tests/test_tabs.py

@@ -44,6 +44,13 @@ def test_tabs_active_exists(browser):
     assert len(active) >= 1, "Expected at least one active tab"
 
 
+def test_tabs_active_in_window(browser):
+    active = next(t for t in browser("tabs.list") if t.get("active"))
+    result = browser("tabs.active_in_window", {"windowId": active["windowId"]})
+    assert result["id"] == active["id"]
+    assert result["windowId"] == active["windowId"]
+
+
 def test_tabs_html(browser, http_tab):
     html = browser("tabs.html", {"tabId": http_tab["id"]})
     assert isinstance(html, str)

uv.lock

@@ -4,7 +4,7 @@ requires-python = ">=3.10"
 
 [[package]]
 name = "browser-cli"
-version = "0.5.6"
+version = "0.5.7"
 source = { editable = "." }
 dependencies = [
     { name = "click" },