badlogic/pi-mono v0.56.3 on GitHub

claude-sonnet-4-6 model available via the google-antigravity provider (#1859)
Custom editors can now define their own onEscape/onCtrlD handlers without being overwritten by app defaults, enabling vim-mode extensions (#1838)
Shift+Enter and Ctrl+Enter now work inside tmux via xterm modifyOtherKeys fallback (docs/tmux.md, #1872)
Auto-compaction is now resilient to persistent API errors (e.g. 529 overloaded) and no longer retriggers spuriously after compaction (#1834, #1860)

Fixed custom editors having their onEscape/onCtrlD handlers unconditionally overwritten by app-level defaults, making vim-style escape handling impossible (#1838)
Fixed auto-compaction retriggering on the first prompt after compaction due to stale pre-compaction assistant usage (#1860 by @joelhooks)
Fixed sessions never auto-compacting when hitting persistent API errors (e.g. 529 overloaded) by estimating context size from the last successful response (#1834)
Fixed compaction summarization requests exceeding context limits by truncating tool results to 2k chars (#1796)
Fixed /new leaving startup header content, including the changelog, visible after starting a fresh session (#1880)
Fixed misleading docs and example implying that returning { isError: true } from a tool's execute function marks the execution as failed; errors must be signaled by throwing (#1881)
Fixed model switches through non-reasoning models to preserve the saved default thinking level instead of persisting a capability-forced off clamp (#1864)
Fixed parallel pi processes failing with false "No API key found" errors due to immediate lockfile contention on auth.json and settings.json (#1871)
Fixed OpenAI Responses reasoning replay regression that broke multi-turn reasoning continuity (#1878)