
Open-source coding agent harness built for long-running work
VT Code turns GPT-6 Astra into a coding agent for long-running software tasks. Its Rust-based harness manages tools, context, sandboxing, permissions, planning, and verification so Astra can work through complex multi-step changes in a controlled, reviewable way. VT Code also supports durable sessions, local models, 31 providers, and open protocols like MCP and ACP.
VT Code is an open-source coding agent that utilizes GPT-6 Astra for managing long-running software tasks. It features a Rust-based harness for tool management, context handling, and verification, supporting durable sessions and multiple providers through open protocols.
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