feat: initial release of ARTEMIS Android Agent & Automation Platform

ARTEMIS is an autonomous multimodal Android agent and mobile UI automation
platform engineered for physical devices and emulators. It combines state-of-the-art
multimodal Vision-Language Models (VLMs) with hierarchical closed-loop planning,
resilient self-healing, and deep Android subsystem integration.

Key Features & Architectural Highlights:
- Dual-Engine Orchestration:
  * Pro Engine: Multi-agent closed-loop (Planner -> Operator -> Validator/Failure Analyzer -> Summarizer) powered by LangGraph.
  * Flash Engine: Ultra-fast reactive loop for deterministic, low-latency UI execution (<35 steps).
- Multimodal Perception & Grounding:
  * Hybrid visual screenshot grounding, real-time OCR extraction, and XML accessibility hierarchy parsing.
  * Dynamic-First, Coordinate-Fallback locating strategy for maximum resilience against UI drift.
- Autonomous Self-Healing & Diagnostics:
  * Failure analyzer and safety net for popup dismissal, crash recovery, and auto-retry.
  * Diagnostic sub-agents for log analysis, video recording inspection, and object detection.
- Unified CLI & Python SDK:
  * Rich CLI with commands: init, doctor, run, trace, batch, bench, server, and mcp.
  * Fluent Python SDK with Pydantic structured output models and package locking.
- Multi-Provider LLM Architecture:
  * Support for Google Gemini, OpenAI, Anthropic Claude, Vertex AI, OpenRouter, xAI Grok, and local endpoints (Ollama/vLLM).
  * Centralized configuration in config/artemis.jsonc.
- Native MCP & Observability:
  * Model Context Protocol (MCP) server endpoints for AI IDEs.
  * Full trace recording with before/after screenshots, action overlays, and execution replays.

Change-Id: I430b93ee2b76b54cc5a3c6eeccd15d2cf29830a1

artemis/agents/validator/failure_analyzer_agent.py

@@ -0,0 +1,69 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Modular Failure Analyzer Agent adhering to BaseAgent lifecycle."""
+
+from typing import Any
+from artemis.agents.base import AgentConfig, AgentRegistry, BaseAgent
+from artemis.agents.validator.recovery_strategies import RecoveryStrategyRegistry
+from artemis.utils.logger import get_logger
+
+logger = get_logger(__name__)
+
+
+@AgentRegistry.register("failure_analyzer")
+class FailureAnalyzerAgent(BaseAgent):
+    """Specialized agent responsible for diagnosing step failures and triggering autonomous recovery."""
+
+    def __init__(
+        self,
+        config: AgentConfig | None = None,
+        ctx: Any | None = None,
+        **kwargs: Any,
+    ):
+        super().__init__(
+            name="failure_analyzer",
+            role="Autonomous Self-Healing Failure Analyzer",
+            description="Diagnoses execution exceptions, analyzes screen discrepancies, and runs self-healing sequences.",
+            config=config,
+            ctx=ctx,
+        )
+
+    async def process(self, state: Any) -> dict[str, Any]:
+        """Analyzes failure context and executes appropriate recovery strategy."""
+        if not self.driver:
+            raise RuntimeError("FailureAnalyzerAgent requires an active device driver in context.")
+
+        failure_context = getattr(state, "failure_context", {}) or {}
+        if isinstance(state, dict):
+            failure_context = state.get("failure_context", {})
+
+        logger.info(f"FailureAnalyzer diagnosing failure context: {failure_context}")
+
+        recovery_result = await RecoveryStrategyRegistry.attempt_recovery(
+            driver=self.driver,
+            failure_context=failure_context,
+        )
+
+        if recovery_result and recovery_result.success:
+            return {
+                "status": "recovered",
+                "recovery_action": recovery_result.action_type.value,
+                "reason": recovery_result.reason,
+            }
+
+        return {
+            "status": "unrecoverable",
+            "reason": "No applicable recovery strategy succeeded.",
+        }