jwcrystalandBohdan Triapitsyn fccf4bad32 feat: session worktree isolation (#913)
* feat: add session-worktree contract types and canonicalizeWorktreeState API

- Add SessionWorktreeAttachment type and worktree metadata fields (worktreeRoot,
  worktreeStatus, headState, worktreeSource) to session/worktree types
- Add GitAPI.validateWorktreeDirectory() and canonicalizeWorktreeState() methods
  with full HTTP delegation chain (gitApiHttp → routes.js → service.js)
- Add canonicalizeWorktreeState() implementation that resolves worktreeRoot,
  headState (branch/detached/unborn), attentionReason (merge/rebase/etc), and
  worktreeStatus (ready/missing/invalid/not-a-repo) for a given directory
- Add validateWorktreeDirectory() to check whether a cwd is inside a worktreeRoot
- Add session-worktree-contract.ts: pure functions for resolving session worktree
  state, formatting badges, and building repair actions
- Add session-worktree-store.ts: authoritative Zustand store for session-to-worktree
  attachments, replacing session-ui-store as the source of truth for worktree binding
- Add unit tests for contract functions and store operations

* feat: canonicalize worktree metadata producers

- worktreeManager.listProjectWorktrees: derive headState (branch/detached/unborn)
  from worktree list entry instead of relying on external state, and populate
  all Phase 1 canonical fields (worktreeRoot, worktreeStatus, worktreeSource)
  for each discovered worktree entry
- worktreeManager.createWorktree: include all Phase 1 canonical fields
  (worktreeRoot, worktreeStatus, headState, worktreeSource) in returned metadata
- useDetectedWorktreeRoot: populate fallback canonical fields so that
  sessions without store-based metadata still have worktreeRoot/worktreeStatus/
  headState/worktreeSource when resolved through the fallback path

* feat: route sessions through authoritative worktree attachments

- session-ui-store: import session-worktree-store as the authoritative source
  for session↔worktree attachment state
- setWorktreeMetadata: mirror all writes to session-worktree-store so that
  session-worktree-store.attachments is always the authoritative record;
  local worktreeMetadata map is kept for backward-compatible reads
- Add session-ui-store.test.js with unit tests covering: valid cwd routing,
  degraded fallback, created-for-session attachments, legacy upgrade recovery,
  missing/not-a-repo status handling

* feat: clarify session worktree targets

- session-worktree-contract: extend buildSessionTargetOptions to accept
  pendingBootstrapDirectory and mark pending worktrees with pending=true;
  extend SessionTargetOption to include optional pending flag
- ChatInput: replace manual worktree branch options construction with
  buildSessionTargetOptions; add  prefix for pending bootstrap worktrees
- Add test for pending bootstrap worktree distinction

* feat: show worktree-backed session state

- Header: read worktree attachment from authoritative session-worktree-store
  and render needs-attention/degraded/missing badge with alert icon next to
  current session info when session has degraded/missing/invalid state
- GitView: show 'Worktree features are unavailable' message when session has
  missing worktree status and open-without-worktree-features repair action

* feat: enforce safe mutations for attached worktrees

- session-worktree-contract: add getMutationBlockingReasons helper that returns
  blocking reasons (missing/invalid/attention state) for high-risk mutations
- GitView: gate handleCheckoutBranch, handleCreateBranch, and handleRenameBranch
  with getMutationBlockingReasons; block with explicit toast message when
  worktree is missing, invalid, or has an in-progress git operation
- session-worktree-contract.test: add 7 tests covering mutation blocking for
  missing/invalid/attention states (merge/rebase/cherry-pick)

* feat: implement session worktree isolation

This adds a shared session↔worktree contract that makes session switching
worktree-backed. Sessions attached to different worktrees keep stable branch
context without shared-directory auto-checkout.

Commits:
- feat: add session-worktree contract types and canonicalizeWorktreeState API
- feat: canonicalize worktree metadata producers
- feat: route sessions through authoritative worktree attachments
- feat: clarify session worktree targets
- feat: show worktree-backed session state
- feat: enforce safe mutations for attached worktrees

* feat: make authoritative attachment first-priority source for session directory resolution

Phase A: resolveSessionDirectory, getDirectoryForSession, hooks read
authoritative attachment before falling back to worktreeMetadata.

Phase B: createSession canonicalizes and writes attachment on creation;
setCurrentSession recovers legacy/missing attachments via async
canonicalization.

* feat: make authoritative attachment the primary branch source in Header/GitView

Phase C: Header branch label and GitView project root now read from
authoritative SessionWorktreeAttachment first, falling back to live git
and legacy sources only when attachment is absent, degraded, or legacy.

Adds getAttachmentBranchLabel() helper with 7 tests.

* feat: add runtime parity for validateWorktreeDirectory and canonicalizeWorktreeState

Phase D: Web runtime API, VS Code bridge, and VS Code gitService now
expose validateWorktreeDirectory and canonicalizeWorktreeState, matching
the server-side implementations. All three runtimes (web, desktop, VS Code)
can now delegate worktree canonicalization without HTTP fallback.

* feat: add dirty-tree blocking to mutation safety gates

getMutationBlockingReasons now accepts an optional gitStatus param
and blocks branch mutations when the tree has uncommitted changes.
GitView passes live status to all three blocking call sites.
5 new tests covering dirty, clean, null, combined, and no-file-count cases.

* refactor: revert branch label to live-git-first, remove getAttachmentBranchLabel

Live git is the correct source for branch labels in all scenarios:
dedicated worktree sessions have identical live/attachment branches,
and shared-directory sessions must show the real current branch.

Attachment remains authoritative for worktreeRoot, cwd, degraded/
missing/repair status, and mutation blocking.

* chore: remove session worktree isolation plan doc

* refactor: simplify session worktree isolation implementation

---------

Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
2026-04-16 20:13:59 +03:00
2025-12-07 19:32:53 +02:00
2025-12-07 19:32:53 +02:00
2026-04-14 23:58:06 +03:00
2025-12-07 19:32:53 +02:00
2025-12-07 19:32:53 +02:00
2025-12-07 19:32:53 +02:00
2025-12-07 19:32:53 +02:00
2025-12-07 19:32:53 +02:00
2026-04-08 11:36:08 +03:00
2025-12-07 19:32:53 +02:00
2025-12-07 19:32:53 +02:00

OpenChamber

GitHub stars GitHub release Created with OpenCode Discord Support the project

Important

🏖️ Im on vacation from 08 Apr to 14 Apr. All issues and PRs will continue being reviewed after that. Thanks for the patience.

OpenCode, everywhere. Desktop. Browser. Phone.

A rich interface for OpenCode. Review diffs, manage agents, run dev servers, and keep the big picture while your AI codes.

OpenChamber Chat

More screenshots

Tool Output Settings Web Version Diff View VS Code Extension

PWA Chat PWA Diff

Why use OpenChamber?

  • Cross-device continuity: Start in TUI, continue on tablet/phone, return to terminal - same session
  • Remote access: Use OpenCode from anywhere via browser
  • Familiarity: A visual alternative for developers who prefer GUI workflows

Features

Core (all app versions)

  • Branchable chat timeline with /undo, /redo, and one-click forks from earlier turns
  • Smart tool UIs for diffs, file operations, permissions, and long-running task progress
  • Voice mode with speech input and read-aloud responses for hands-free workflows
  • Multi-agent runs from one prompt with isolated worktrees for safe side-by-side comparisons
  • Git workflows in-app: identities, commits, PR creation, checks, and merge actions
  • GitHub-native workflows: start sessions from issues and pull requests with context already attached
  • Plan/Build mode with a dedicated plan view for drafting and iterating implementation steps
  • Inline comment drafts on diffs, files, and plans that can be sent back to the agent
  • Context visibility tools (token/cost breakdowns, raw message inspection, and activity summaries)
  • Integrated terminal with per-directory sessions and stable performance on heavy output
  • Built-in skills catalog and local skill management for reusable automation workflows

Web / PWA

  • Provider-aware tunnel access model with Cloudflare quick, managed-remote, and managed-local modes
  • One-scan onboarding with tunnel QR + password URL helpers
  • Mobile-first experience: optimized chat controls, keyboard-safe layouts, and attachment-friendly UI
  • Background notifications plus reliable cross-tab session activity tracking
  • Built-in self-update + restart flow that keeps your server settings intact

Desktop (macOS)

  • Native macOS menu integration with polished app actions and deep-link handling
  • Multi-window support for parallel project/session workflows
  • "Open In" shortcuts for Finder, Terminal, and your preferred editor
  • Fast switching between local and remote instances
  • Workspace-first startup flow with directory picker and steadier window restore behavior

VS Code Extension

  • Editor-native workflow: open files directly from tool output and keep sessions beside your code
  • Agent Manager for parallel multi-model runs from a single prompt
  • Right-click actions to add context, explain selections, and improve code in-place
  • In-extension settings, responsive layout, and theme mapping that matches your editor
  • Hardened runtime lifecycle and health checks for faster startup and fewer stuck reconnect states

Custom Themes

  • Use it from anywhere - Cloudflare tunnel with QR code onboarding. Scan, connect, code from your couch.
  • Branchable chat timeline - Undo, redo, fork from any turn. Explore different approaches without losing your place.
  • GitHub-native workflows - Start sessions from issues and PRs with context already attached. Review checks, merge - all in-app.
  • Project Actions - Run dev servers, configure SSH port forwarding, open remote URLs locally. Your project commands, one click away.
  • Connect to remote machines - Desktop app connects to remote OpenChamber instances over SSH, with dedicated lifecycle and UX flows.

Quick Start

Prerequisite: OpenCode CLI installed.

Desktop (macOS)

Download from Releases.

VS Code

Install from Marketplace or search "OpenChamber" in Extensions.

CLI (Web + PWA)

requires Node.js 20+

curl -fsSL https://raw.githubusercontent.com/btriapitsyn/openchamber/main/scripts/install.sh | bash
openchamber --ui-password be-creative-here
Advanced CLI options
openchamber --port 8080              # Custom port
openchamber --ui-password secret     # Password-protect UI
openchamber tunnel help              # Tunnel lifecycle commands
openchamber tunnel providers         # Show provider capabilities
openchamber tunnel profile add --provider cloudflare --mode managed-remote --name prod-main --hostname app.example.com --token <token>
openchamber tunnel start --profile prod-main
openchamber tunnel start --provider cloudflare --mode quick --qr
openchamber tunnel start --provider cloudflare --mode managed-local --config ~/.cloudflared/config.yml
openchamber tunnel status --all      # Show tunnel state across instances
openchamber tunnel stop --port 3000  # Stop tunnel only (server stays running)
openchamber logs                     # Follow latest instance logs
OPENCODE_PORT=4096 OPENCODE_SKIP_START=true openchamber                    # Connect to external OpenCode server
OPENCODE_HOST=https://myhost:4096 OPENCODE_SKIP_START=true openchamber  # Connect via custom host/HTTPS
openchamber stop                     # Stop server
openchamber update                   # Update to latest

Connect to an existing OpenCode server:

OPENCODE_PORT=4096 OPENCODE_SKIP_START=true openchamber
OPENCODE_HOST=https://myhost:4096 OPENCODE_SKIP_START=true openchamber

Bind managed OpenCode server to all interfaces (use only on trusted networks):

OPENCHAMBER_OPENCODE_HOSTNAME=0.0.0.0 openchamber --port 3000
systemd service (VPN / LAN access)

Run OpenChamber and OpenCode as separate persistent services — useful when you want to access your dev machine over a VPN (e.g. Tailscale) or LAN without a Cloudflare tunnel.

How it works:

  • OpenCode runs as its own service, binding only to localhost.
  • OpenChamber connects to it via OPENCODE_HOST and --host 0.0.0.0 makes it reachable on your VPN IP.
  • --foreground keeps the CLI process alive so systemd can track and restart it.

~/.config/systemd/user/opencode.service

[Unit]
Description=OpenCode Server

[Service]
Type=simple
ExecStart=opencode serve --port 4095
Environment="PATH=/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin:/home/YOU/.local/bin:/home/YOU/.npm-global/bin:/usr/local/bin:/usr/bin:/bin"
Environment=SSH_AUTH_SOCK=%t/ssh-agent.socket
Restart=on-failure
RestartSec=5

[Install]
WantedBy=default.target

Why set PATH and SSH_AUTH_SOCK? systemd user services start with a minimal environment — no shell profile is sourced. Without an explicit PATH, OpenCode won't find tools installed via Homebrew, npm, or ~/.local/bin. Without SSH_AUTH_SOCK, git operations over SSH (push, pull, clone) will fail because the agent socket isn't inherited. Adjust the PATH to match your own tool installation paths. %t expands to $XDG_RUNTIME_DIR (e.g. /run/user/1000), where most SSH agents write their socket.

~/.config/systemd/user/openchamber.service

[Unit]
Description=OpenChamber Web Server
After=opencode.service

[Service]
Type=simple
ExecStart=openchamber serve --port 3000 --host 0.0.0.0 --ui-password your-password --foreground
Environment="OPENCODE_HOST=http://localhost:4095"
Environment="OPENCODE_SKIP_START=true"
Restart=on-failure
RestartSec=5

[Install]
WantedBy=default.target
systemctl --user daemon-reload
systemctl --user enable --now opencode openchamber

OpenChamber will be reachable at http://<your-vpn-hostname>:3000 from any device on your VPN.

Note: --host 0.0.0.0 is required to listen on all interfaces. The default bind address is 127.0.0.1 (localhost only). Use --host <ip> or OPENCHAMBER_HOST=<ip> to bind to a specific interface instead.

Docker
docker compose up -d

Available at http://localhost:3000.

UI Password:

environment:
  UI_PASSWORD: your_secure_password

Cloudflare Tunnel (optional):

environment:
  OPENCHAMBER_TUNNEL_MODE: quick # quick | managed-remote | managed-local
  OPENCHAMBER_TUNNEL_PROVIDER: cloudflare

For managed-remote mode, provide:

environment:
  OPENCHAMBER_TUNNEL_MODE: managed-remote
  OPENCHAMBER_TUNNEL_HOSTNAME: app.example.com
  OPENCHAMBER_TUNNEL_TOKEN: <token>

For managed-local mode, optionally provide:

environment:
  OPENCHAMBER_TUNNEL_MODE: managed-local
  OPENCHAMBER_TUNNEL_CONFIG: /home/openchamber/.cloudflared/config.yml

Managed-local path note: OPENCHAMBER_TUNNEL_CONFIG must point to a path inside the container user home (/home/openchamber/...). If your Cloudflare config references a credentials JSON file, that file path must also be accessible inside the container (mount with volumes).

Tunnel behavior notes

  • OpenChamber supports one active tunnel per running instance (port).
  • Starting a tunnel with a different mode/provider on the same instance replaces the current tunnel.
  • Replacing or stopping a tunnel revokes existing connect links and invalidates remote tunnel sessions for that instance.
  • Connect links are one-time tokens; generating a new link revokes the previous unused link.

Data Directory Permission Note: The data/ directory is mounted into the container for persistent storage (config, sessions, SSH keys, workspaces). Before running, ensure the directory exists and has proper permissions:

mkdir -p data/openchamber data/opencode/share data/opencode/config data/ssh
chown -R 1000:1000 data/

SSH/Git: If git push/pull fails, run ssh -T git@github.com in terminal.

Features

Chat & Interaction
  • Branchable chat timeline with /undo, /redo, and one-click forks from any turn
  • Multi-agent runs from one prompt with isolated worktrees for safe side-by-side comparisons
  • Voice mode with speech input and read-aloud responses for hands-free workflows
  • Plan/Build mode with a dedicated plan view for drafting and iterating steps
  • Inline comment drafts on diffs, files, and plans - send feedback back to the agent
  • Shell mode via leading ! with inline output
  • Share messages as images
  • Mermaid diagrams render inline with copy/download actions
  • Smart tool UIs for diffs, file operations, permissions, and task progress
Git & GitHub
  • Full Git sidebar with staging, commits, push/pull, branch management, and rebase/merge flows
  • PR creation with AI-generated descriptions, status checks, and merge actions
  • Start sessions from GitHub issues and pull requests with context baked in
  • Multi-remote push and fork-aware PR creation
  • Worktree integration: isolated sessions per branch, merge back with conflict handling
  • Git identities, gitmoji support, and multi-account GitHub auth
Files, Diff & Terminal
  • Workspace file browser with inline editing, syntax highlighting, and markdown preview
  • Beautiful diff viewer with stacked/inline modes, lazy loading for large changesets
  • Integrated terminal with per-directory sessions, tabbed interface, and stable heavy-output performance
  • Clickable file paths in messages - jump to exact line locations
  • File-type icons across all views for faster visual scanning
Web / PWA
  • Cloudflare tunnel with quick, managed-remote, and managed-local modes, secure one-time connect links, and QR onboarding
  • Mobile-first: optimized chat controls, keyboard-safe layouts, drag-to-reorder projects
  • Background notifications and cross-tab session tracking
  • Self-update + restart flow that keeps your server settings intact
  • Installable as PWA with project-aware naming
Desktop (macOS)
  • Connect to remote OpenChamber instances over SSH with dedicated lifecycle flows
  • Project Actions: run dev servers, SSH port forwarding, open remote URLs locally
  • Multi-window support for parallel project workflows
  • "Open In" shortcuts for Finder, Terminal, and your preferred editor
  • Fast switching between local and remote instances
  • Native macOS menu, deep-link handling, and polished startup
VS Code Extension
  • Editor-native: open files from tool output, keep sessions beside your code
  • Agent Manager for parallel multi-model runs from a single prompt
  • Right-click actions: add context, explain selections, improve code in-place
  • Session editor panel, responsive layout, and theme mapping to your editor
  • Edit-style tool results open directly in focused diff views
Customization
  • 18+ built-in themes with light/dark variants
  • Custom themes via JSON files in ~/.config/openchamber/themes/ - hot reload, no restart
  • Configurable keyboard shortcuts for chat, panels, and services
  • Font size, spacing, corner radius, and layout controls
  • Customizable project icons with upload and automatic favicon discovery
  • Skills catalog and local skill management for reusable automation

Read the Guide: Custom Themes

Context & Productivity
  • Token usage, cost breakdowns, and raw message inspection panel
  • Usage quota tracking across multiple providers with pace/prediction indicators
  • Favorite model cycling via keyboard shortcuts
  • Session folders and subfolders with drag-to-reorder
  • Persistent project notes and todos per project
  • Draft persistence per session with expanded focus mode for longer prompts

Roadmap

Active development. Here's what's being worked on or planned:

  • Windows and Linux desktop apps
  • Mobile app with remote instance and laptop connectivity
  • More built-in tunneling options
  • Kanban board for multi-agent management - keeping the human in the loop and in control
  • Custom OpenCode plugins/tools built-in catalog
  • Linear integration
  • Built-in browser for running dev apps with agent integration

Acknowledgments

Independent project, not affiliated with the OpenCode team.

Special thanks to:

  • OpenCode - For the excellent API and extensible architecture.
  • Flexoki - Beautiful color scheme by Steph Ango.
  • Pierre - Fast, beautiful diff viewer with syntax highlighting.
  • Tauri - Desktop application framework.
  • Ghostty-web - Great implementation of a Ghostty web renderer.
  • David Hill - Who inspired me to release this without overthinking.
  • My wife, who - with zero AI background - sat down with the app for the first time and built the firework celebration that plays on every successful push.
  • Every contributor who shaped this project with their PRs, ideas, and attention to detail.

Contributing

See CONTRIBUTING.md for development setup and guidelines.

Docs source lives in packages/docs.

License

MIT

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