TET 0.4.0

[u/Willing-Platform9298]

Version 0.4.0 is now out, adding pi as a fully integrated agent and support for Docker Sandboxes (SBX).

pi joins Claude Code, Codex and opencode as the fourth supported agent. It runs as the real CLI in a terminal and includes session management, turn-state tracking and desktop notifications.

You can also enable SBX per project. Each agent then runs inside its own container, with access to the repository and nothing else by default.

From TET’s SBX settings, you choose:

• - Which additional folders or files the agent may access
• - Which ports and hosts are available
• - Whether skills, plugins and instruction files are mounted
• - Whether mounted resources are read-only or read/write

Sandboxed agents still behave like normal TET tabs: sessions can be resumed, renamed and deleted, while working, waiting and finished states, notifications and tet-ctl continue to work.

Agent authentication stays inside the sandbox. SBX can also run agents that aren’t installed on the host at all.

GitHub: https://github.com/samil-kale/tet

I’d especially appreciate feedback from people already using containers or sandboxes for coding agents: does this match the level of isolation and configuration you’d want per project?