* fix(git): create worktrees from forked PRs via refs/pull/<n>/head fallback
A worktree created from a linked GitHub PR whose head branch lives in a fork
failed when the fork's head repository was missing (deleted fork) or
unfetchable (auth, network): the dialog threw 'PR head repository URL is
unavailable' before any git command ran, and the server had no fallback to
refs/pull/<n>/head, which GitHub serves on the base repository.
- NewWorktreeDialog: when pr.headRepo is absent, send a prRef config
(refs/pull/<n>/head from origin) instead of throwing; the fork config now
also carries prRef so the server can fall back when the fork fetch fails.
- git service: fetchPullRequestHeadRef fetches refs/pull/<n>/head into
refs/remotes/<remote>/pr-<n>-head (same refspec shape as
fetchRemoteBranchRef) and both validateWorktreeCreate and
attachGitWorktreeToCandidate fall back to it when the fork path fails;
fallback worktrees get --no-track and no upstream config because a PR ref
is not pushable. When both paths fail the original fork error surfaces.
- Focused tests cover the prRef-only path and the fork-unreachable fallback.
Fixes#2422
* fix(git): harden PR worktree fallback against stale fork refs (#12)
After a fork fetch fails, resolve immediately from refs/pull/<n>/head
instead of accepting a cached remotes/<fork>/<branch> tracking ref.
Match the PR base repository by URL (not a hardcoded origin remote),
store fetched PR heads under refs/openchamber/pull/<n>/head, and share
one existing-mode resolver between validate and create.
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* fix(git): make PR head SHA authoritative and namespace private refs
Reuse local/remote branches for linked PRs only when their tip matches
pr.headSha; otherwise fall through to fork fetch / refs/pull. Store PR
heads under refs/openchamber/github/<owner>/<repo>/pull/<n>/head, prefer
HTTPS for direct base-repo fallback, and surface composite fork+fallback
errors when both paths fail.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* test(ui): assert validate/create forward deleted-fork PR payload fields
Guards the dialog wiring regression where validate omitted prRef while
create included it, by asserting worktreeManager forwards prRef,
prBaseRepoUrl, and related fields for deleted-fork configs.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* refactor(git): always checkout linked PRs from refs/pull/<n>/head
Move PR worktree resolution to the server. The UI now sends only
pullRequest identity (number + baseRepoUrl + optional head fields);
the server always fetches the authoritative PR head and best-effort
configures fork upstream afterward.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* refactor(ui): drop PrWorktreeConfig; send PR identity only
Delete the prWorktreeConfig module. NewWorktreeDialog maps linked PRs
straight to pullRequest identity, skips upstream defaults for that path,
and leaves checkout + optional fork tracking to the server.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* refactor(git): linked PRs are {number, baseRepoUrl} only
Drop fork upstream / tracking and head/base owner-repo fields from the
linked-PR worktree path. Fetch refs/pull/<n>/head, create --no-track, done.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* fix(git): meet #2422 Must/Should without refs/pull fallback
Linked PRs send fork identity only; the server provisions pr-<owner>,
fetches the head branch, and fails clearly when the fork is missing or
unreachable. Local reuse requires a matching headSha. Prefer HTTPS for
headRepoUrl. Do not write upstream tracking when the upstream ref was
never fetched.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* fix(git): drop invalid upstream fallback and PR branch collisions
Remove setBranchTrackingFallback: if upstream fetch fails, leave tracking
unset. When a linked PR's head branch already exists locally with a
different tip, create pr-<number> instead of git worktree add -b on the
colliding name.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
* fix(git): strip PR worktree create back to fork-remote provision (#15)
Keep the original ensureRemoteName/Url path for linked fork PRs, prefer
HTTPS clone URLs, fail clearly when the fork is unreachable, and leave
upstream tracking unset when the upstream ref was never fetched.
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>
OpenChamber is an open-source workspace for running, supervising, and reviewing AI coding work across desktop, browser, editor, and mobile.
OpenChamber gives you one place to direct agent work, understand the changes, and move them toward release. Your projects stay available when you switch devices or step away.
More screenshots
What you can do with OpenChamber
Goals that continue on their own
Give a session a finish line with Session Goals. OpenChamber checks the result after every turn and keeps the agent working until the goal is complete, blocked, or reaches the limit you set — even after you close the app.
Compare and combine runs
Use Multi-run to give the same task to up to five models, each in its own session and optionally its own worktree. See what each one actually built, choose the best result, or use Fusion to combine the strongest parts into a new session.
Guided changes walkthroughs
Changes Walkthrough turns a large diff into an AI-guided tour of the change. It groups related edits into steps, puts them in the order the change makes sense, and explains how the pieces fit together.
Inspect a running app
Open your app beside the conversation with Preview. Point at an element and send the agent its screenshot, styles, position, and browser errors — all the context behind “this thing here.” Desktop brings the same workflow to any web page through its built-in browser.
GitHub context from issue to pull request
Start a session from a GitHub issue or pull request with its context attached. Send failed checks or review comments back to the agent, then update or merge the pull request from OpenChamber.
Continue on another device
Open the same projects and sessions from Desktop, Web/PWA, VS Code, iOS, or Android. Check progress, answer questions, review changes, and reattach to a running terminal.
Private remote access
Pair a device with a one-time QR code and connect through Private Relay without opening ports or exposing a public server. The connection is end-to-end encrypted and can be revoked at any time. Direct connections, LAN/VPN access, Cloudflare/Ngrok tunnels, and SSH are also supported.
Track work across projects
See which sessions are working, waiting, finished, or failed, along with approvals, scheduled tasks, provider limits, token use, and costs. Organize sessions into folders and keep notes, todos, and reusable project actions nearby.
Schedule recurring work
Run a prompt once, daily, weekly, or on a cron schedule. Scheduled tasks can use Session Goals, so they continue toward an outcome instead of stopping after one response.
Use it where you work
Surface
Role
Desktop
The complete workspace for macOS, Windows, and Linux, with multiple windows, Mini Chat, remote machines, SSH, and native notifications
Web / PWA
Open your workspace in a browser, install it as an app, and stay up to date through background notifications
VS Code
Keep sessions beside your code, send selections to the agent, open results in the editor, and compare parallel runs
iOS / Android
Review and steer work away from your desk, receive completion alerts, and use the terminal with touch controls
CLI / Server
Run OpenChamber on a workstation or server, schedule work, manage remote access, and keep it available after login
Quick start
Desktop — macOS, Windows, and Linux
Download the latest release from GitHub Releases. Desktop bundles the matching OpenCode CLI, so no separate OpenCode installation is required.
Linux releases are available as x86_64 and ARM64 AppImages. Make the downloaded AppImage executable and keep it in a writable location for in-app updates:
OpenChamber uses OpenCode to power its coding agents. We chose it because we believe it provides the best open-source agentic coding experience today: capable, extensible, and open by design.
Around that foundation, OpenChamber brings together the work that happens before, during, and after an agent run — deciding what to try, keeping it on track, reviewing the result, connecting from anywhere, and getting the change shipped.
OpenChamber is an independent project and is not affiliated with the OpenCode team.
Contributing
See CONTRIBUTING.md for development setup and contribution guidelines. Documentation authoring guidance lives in packages/docs.
Acknowledgments
Special thanks to:
OpenCode for its excellent API and extensible open-source architecture
Pierre for its fast diff viewer and syntax highlighting
