Google Antigravity v0.1.7

0.1.7 July 14, 2026 Multi-threaded state handling, subprocess isolation, extra high thinking, and local model MCP Release 0.1.7 of the Google Antigravity Python SDK expands end-user control over agent execution environments, strengthens concurrency safety for stateful tools, and introduces deeper reasoning capabilities. Key highlights include atomic multi-threaded state handling for tools and hooks, customizable subprocess environment variable isolation, support for an "extra_high" thinking severity level, and full Model Context Protocol (MCP) and subagent support across local model backends. This release also resolves interactive console prompt clobbering and improves socket discovery under containerized setups. Improvements (9) Multi-threaded Hook & Tool State Handling : Developers can now safely read and mutate shared context variables across multi-threaded tools ( asyncio.to_thread or ThreadPoolExecutor ) using atomic updates and thread locking: Custom Subprocess Environment Variables : Developers can now pass custom environment variables directly to isolated agent instances via LocalAgentConfig , avoiding pollution of the global parent environment: Extra High Thinking Severity Support : Developers can now configure an "extra_high" thinking severity level for complex reasoning tasks without needing to specify or override the model name: MCP & Subagent Support for Local Models (LiteRT & OpenAI) : Developers using local Gemma ( LiteRTAgentConfig ) or local OpenAI-compatible endpoints ( LocalOpenAIAgentConfig , such as Ollama or LM Studio) can now directly configure subagents and register Model Context Protocol (MCP) servers, enabling full local multi-agent and MCP tool workflows. Environment Hydration : Hydrates GCP/Vertex parameters (project, location, routing) dynamically from standard GOOGLE_CLOUD environment variables when not explicitly passed during LocalAgentConfig initialization. Default Image Generation Model Optimization : Updated the default image gener