v0.12.0 — Long sessions that don't freeze

v0.12.0 — Long sessions that don't freeze

This release is all about reliability on long, real-world tasks. While building actual projects with MandoCode, I found several ways a long session could freeze, scramble its own output, or spin in circles instead of finishing — and I fixed every one. The hardest freezes were tracked down by inspecting the stuck app directly, so these address the real causes, not just the symptoms.

Fixed:

• No more freezing when you approve a change. Deep in a multi-step task — right as MandoCode started creating files and asking you to approve them — it could lock up with nothing on screen, leaving you no choice but to quit and lose your progress. The approval prompts could end up waiting forever for a keypress that never reached them; I rebuilt them so they always respond.

• No more locking up while running a command. Some commands could make MandoCode hang on a single step and never come back. It was getting stuck while formatting the command for display — certain commands (long ones, or ones containing file paths) could send it into a loop that never finished. That can't happen now, and a safety cutoff stops anything that ever runs unusually long.

• No more garbled or duplicated text. On longer replies, a second, scrambled copy of the text could end up drawn over the first. I changed how responses are written to the screen so they show once, cleanly, every time.

• No more wasting a session on repeated searches. While researching, MandoCode could run the same web search over and over without realizing it already had the answer — burning time and tokens for nothing. It now recognizes a repeated search and moves on with what it already found.

• No more stalling when previewing your work. Asked to "test it in the browser," MandoCode used to try to start a local web server it couldn't keep running, and would just sit there waiting. Now it simply gives you the exact command and link to open it yourself.

Every fix is covered by automated tests — the suite grew to 449 checks to keep these from coming back.