feat: introduce MCP server, cross-platform runtime, and Showcase UI reorganization
- Showcase UI Reorganization: * Move web UI dashboard from root directory into apps/showcase_ui/ for cleaner project structure * Add 'artemis ui' CLI command (artemis/interfaces/cli/commands/ui.py) and launcher scripts for the interactive showcase console - Standalone MCP Server & Notifiers (mcp_server/): * Implement dedicated MCP server package with mobile automation tools (device_state, inspect_trace, task_manager, task_runner) * Add multi-channel notifiers (AgentAPI, Desktop notifications, Webhooks, File output, and Composite routing) * Introduce background task runner and trace store for autonomous mobile execution monitoring - Cross-Platform Runtime & Toolchain Support: * Add artemis/platform/ with OS-specific implementations for Linux, macOS (Darwin), and Windows * Add artemis/runtime/supervisor.py for resilient process and agent runtime supervision * Add artemis/toolchain/ with dependency resolution and SDK descriptors * Add cross-platform launcher scripts (start.sh, start.bat) and installer scripts (scripts/install_deps.*) - Core Enhancements & Diagnostics: * Enhance coordinate normalization, OCR API fallback, and perception pipeline * Add credential validation (credentials_validator.py) and system diagnostics * Update bilingual documentation (README.md, README_CN.md) and architecture diagrams - Test Suite Expansion: * Add integration tests for cloud gateway, remote ADB, and Artemis login * Add unit tests covering core diagnostics, platform detection, toolchain, credentials validator, optional OCR, and MCP tools
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# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Multi-tier cross-platform binary resolution and discovery engine."""
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import os
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from pathlib import Path
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import shutil
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from artemis.platform import OSType, platform
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from artemis.toolchain.descriptors import TOOLS, ToolDescriptor
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class ToolchainResolver:
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"""Discovers, validates, and resolves platform-specific binaries with graceful fallbacks."""
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def __init__(self):
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self._cache: dict[str, str | None] = {}
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def clear_cache(self, tool_name: str | None = None) -> None:
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"""Invalidate cached tool paths to force fresh discovery."""
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if tool_name:
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self._cache.pop(tool_name.lower(), None)
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else:
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self._cache.clear()
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def resolve(self, tool_name: str, force_refresh: bool = False) -> str | None:
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"""Resolve absolute path to a tool across all discovery tiers."""
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key = tool_name.lower()
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if not force_refresh and key in self._cache:
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cached_val = self._cache[key]
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if cached_val is not None and Path(cached_val).exists():
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return cached_val
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# Cache miss or binary removed: proceed to re-discover
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desc = TOOLS.get(key)
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if desc is None:
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# Generic binary lookup
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res = shutil.which(tool_name)
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if res and Path(res).exists():
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self._cache[key] = str(Path(res).resolve())
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return self._cache[key]
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self._cache.pop(key, None)
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return None
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binary_name = (
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desc.win_binary_name if platform.os_type == OSType.WINDOWS else desc.binary_name
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)
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# Tier 1: Explicit environment variable override (e.g. ARTEMIS_ADB_PATH)
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env_var = f"ARTEMIS_{desc.name.upper()}_PATH"
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env_override = os.getenv(env_var)
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if env_override and Path(env_override).exists():
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resolved = str(Path(env_override).resolve())
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self._cache[key] = resolved
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return resolved
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# Tier 2: SDK Environment Variables (for Android tools)
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if desc.sdk_relative_path:
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for sdk_env in ("ANDROID_HOME", "ANDROID_SDK_ROOT"):
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sdk_dir = os.getenv(sdk_env)
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if sdk_dir:
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candidate = Path(sdk_dir) / desc.sdk_relative_path
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if platform.os_type == OSType.WINDOWS:
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candidate = candidate.with_suffix(".exe")
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if candidate.exists():
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resolved = str(candidate.resolve())
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self._cache[key] = resolved
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return resolved
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# Tier 3: Common OS default installation paths
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common_candidates = self._get_os_common_paths(desc)
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for cand in common_candidates:
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if cand.exists():
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resolved = str(cand.resolve())
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self._cache[key] = resolved
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return resolved
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# Tier 4: System PATH
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which_path = shutil.which(binary_name) or shutil.which(desc.name)
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if which_path:
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resolved = str(Path(which_path).resolve())
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self._cache[key] = resolved
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return resolved
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# Tier 5: Python library embedded binary fallback
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if desc.embedded_fallback:
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try:
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embedded = desc.embedded_fallback()
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if embedded and Path(embedded).exists():
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resolved = str(Path(embedded).resolve())
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self._cache[key] = resolved
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return resolved
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except Exception:
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pass
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# Do not permanently cache negative lookups so dynamic installs are detected immediately
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self._cache.pop(key, None)
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return None
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def _get_os_common_paths(self, desc: ToolDescriptor) -> list[Path]:
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candidates: list[Path] = []
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home = Path.home()
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if platform.os_type == OSType.WINDOWS:
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local_appdata = os.getenv("LOCALAPPDATA", "")
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program_files = os.getenv("ProgramFiles", "C:\\Program Files")
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program_data = os.getenv("ProgramData", "C:\\ProgramData")
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if desc.name == "adb":
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if local_appdata:
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candidates.append(
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Path(local_appdata) / "Android" / "Sdk" / "platform-tools" / "adb.exe"
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)
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candidates.append(Path(program_files) / "Android" / "platform-tools" / "adb.exe")
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elif desc.name == "scrcpy":
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candidates.append(Path(program_data) / "chocolatey" / "bin" / "scrcpy.exe")
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if local_appdata:
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candidates.append(
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Path(local_appdata) / "Microsoft" / "WinGet" / "Links" / "scrcpy.exe"
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)
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elif desc.name == "ffmpeg":
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candidates.append(Path(program_data) / "chocolatey" / "bin" / "ffmpeg.exe")
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if local_appdata:
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candidates.append(
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Path(local_appdata) / "Microsoft" / "WinGet" / "Links" / "ffmpeg.exe"
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)
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elif platform.os_type == OSType.MACOS:
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if desc.name == "adb":
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candidates.append(home / "Library" / "Android" / "sdk" / "platform-tools" / "adb")
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candidates.append(Path("/opt/homebrew/bin/adb"))
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candidates.append(Path("/usr/local/bin/adb"))
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elif desc.name in ("ffmpeg", "scrcpy"):
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candidates.append(Path(f"/opt/homebrew/bin/{desc.name}"))
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candidates.append(Path(f"/usr/local/bin/{desc.name}"))
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elif platform.os_type == OSType.LINUX:
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if desc.name == "adb":
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candidates.append(home / "Android" / "Sdk" / "platform-tools" / "adb")
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candidates.append(Path("/usr/lib/android-sdk/platform-tools/adb"))
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candidates.append(Path("/usr/bin/adb"))
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elif desc.name in ("ffmpeg", "scrcpy"):
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candidates.append(Path(f"/usr/bin/{desc.name}"))
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candidates.append(Path(f"/usr/local/bin/{desc.name}"))
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return candidates
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def find_adb(self) -> str:
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"""Find ADB executable or fallback to default name."""
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return self.resolve("adb") or "adb"
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def find_ffmpeg(self) -> str:
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"""Find FFmpeg executable or fallback to default name."""
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return self.resolve("ffmpeg") or "ffmpeg"
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def find_scrcpy(self) -> str:
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"""Find scrcpy executable or fallback to default name."""
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return self.resolve("scrcpy") or "scrcpy"
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def is_installed(self, tool_name: str) -> bool:
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"""Check whether a tool is found on this system."""
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return self.resolve(tool_name) is not None
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# Global toolchain resolver singleton
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toolchain: ToolchainResolver = ToolchainResolver()
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