Arc 1.6.8

• Choose Trusted Host explicitly for an individual room agent. Existing seats and new agents remain in Safe Workspace unless you change them.
• Each shell call is one stateless, non-interactive command. Arc reports the exact shell, working directory, stdout, stderr, exit code, duration, timeout or Stop state, byte counts, and any output truncation.
• Programs that read standard input can receive up to 64 KiB of one-shot text followed by EOF. Arc also shows the installed runtimes and the correct PowerShell or POSIX command dialect to the agent.
• Publish run artifact turns a command receipt into a durable room artifact containing the command, captured output, and same-turn source files. It records only whether stdin was supplied and its byte count, not the stdin payload.

• Trusted Host results keep both the beginning and end of oversized output and state exactly how many bytes were omitted, so build and test failures retain their most useful tail.
• Shell-made changes are clearly marked as outside Arc Undo. Use Safe Workspace writes when you want conflict checks, durable receipts, and exact undo.

Windows 10/11 (64-bit), or macOS 11+ on Apple Silicon.