v0.20.0

Nebula v0.20.0 is out. A quick prompt on p that starts an agent straight from what you typed, and two keys to retarget that one launch at any harness or saved preset.

🚀 Launch faster

• A quick prompt on p. Press p in any panel for a wrapped, multi-row task box — Shift+Enter or Ctrl+J inserts a line, Esc cancels, Enter launches. It starts a new agent in the selected worktree with what you typed as its first prompt and attaches it: no picker, no name step, and the session titles itself from the prompt. Which CLI it runs is Settings › Agents › Quick prompt agent (default claude), launched with that harness's own default model and effort.
• Retarget one launch, not the setting. Inside the box, Tab opens the harness list the new-session picker uses (→ drills into that harness's model and effort) and Shift+Tab opens your saved agent presets — adopting the preset's harness, model, effort and its prefix/postfix wrapping around your task. Either picker hands the box back with your text intact, on Esc too. The override applies to that launch only: the title bar shows the live spec, and the next p starts from the default again.
• Task box hints that fit. Between 36 and 41 columns the task editor's key hint was two columns wider than its border, and ratatui clipped the tail without a word. Every width now picks a line that fits, held in place by a test that measures each tier against the border.

curl -fsSL https://raw.githubusercontent.com/AgentSystemLabs/nebula/main/install.sh | sh