Nimbalyst is a free, open-source, local visual workspace for building with Claude Code, Codex, and other coding agents. It combines WYSIWYG editors for markdown, mockups, Mermaid, Excalidraw, CSV, data models, and code with parallel session management, task tracking, and git tooling. Features include visual editors where humans and coding agents collaborate on the same files, a kanban-style session manager that links files to sessions, task and bug tracking, AI-assisted commits, worktrees, an embedded terminal, a mobile companion app, and a pluggable extension system for custom editors.
What's new in 0.79.1
September 30th, 2026 Release New Features - Sonnet 5.5 for Claude Agent and the Claude API. The Sonnet row now runs Sonnet 5.5, and Sonnet 5 stays selectable. - GPT-6.1 Sol in the Codex and OpenAI model pickers, now the default Codex model. - Crew Extension (alpha, off by default): persistent agent teammates that work scheduled shifts within token budgets and flag you when something needs you. Use /crew:hire in any agent session to design a new Crew member. - Opt-in unlimited open projects, with a scrollable project rail and cleanup of resources for projects you are not using (#1579, contributed by @jszobody). - Extensions can start and drive their own agent sessions. Improvements - Claude Code sessions waiting on a background shell or sub-agent show a distinct indicator and name the task in the transcript. - Quick Track's Cmd+Enter creates the item and closes the popup without switching to Tracker mode, and the title field now spans the popup. - Improved load performance for very large Codex sessions. Fixed - Compound Bash commands no longer prompt for permission after a user PreToolUse hook has allowed them (#426, contributed by @yanekm). - Overlapping file-tree scans no longer exhaust memory while files change in large projects (#1604, contributed by @jszobody). - Agent sessions no longer read and cache large or binary files written into the workspace, which flooded the log and grew memory. - Inline diffs no longer freeze the window for agent edits across long, list-heavy markdown files (#1606). - A sent prompt no longer stays duplicated below the transcript when the turn is slow to start (#1620). - Transcript messages no longer flash and redraw while a session is streaming. - Sessions no longer stay marked as running, or lose their waiting-for-you state, around an open question. A question left unanswered by sending a new message now shows as skipped. - Claude Agent sessions in an externally created worktree no longer stay stuck on "running" after a background command finishes. - Following external Claude Code sessions keeps importing after the agent changes directory, and skips unchanged logs. - Codex auto-review and subagent threads no longer appear as separate "# AGENTS.md instructions" sessions. - File @-mention suggestions pick up newly created and renamed files without a reload. - Clicking the Dock or tray icon brings back the project window after the app sat in the background. …
With focused visual tools and preprocessor support, Brackets is a modern text editor that makes it easy to design in the browser. It's crafted from the ground up for web designers and front-end develo
