A WebStorm (and any JetBrains IDE) UI for GitHub stacked pull requests, built on GitHub's gh stack CLI extension. Every change goes through the CLI; the plugin only reads its state files.

Not affiliated with or endorsed by GitHub. GitHub is a trademark of GitHub, Inc.

• GitHub CLI, logged in (gh auth login)
• The extension: gh extension install github/gh-stack (tested with 0.1.x)
• WebStorm or another IntelliJ-based IDE, 2026.2+

• Stacked PRs tool window (right side): every local stack as a tree, top → bottom, with PR number and status (✓ merged, ◎ queued, ⚠ needs rebase, ○ open, ◌ not submitted). Double-click a branch to switch to it; right-click for insert, remove, layer diff, rebase-from-here, open PR.
• Stack switcher: the ⧉ api 2/4 dropdown next to the Git branch widget, the status bar widget, or ⌘⌥K L / Ctrl+Alt+X L. Lists the stack's branches plus other stacks; click to switch.
• Insert branch below/above: creates the branch at the right parent, re-registers the stack and checks the branch out. Move changes into it (or ask your agent to), commit, then Submit.
• Remove from stack: drop a branch and its commits (branches above are rebased without them), or fold it into the branch below/above to keep its commits. Optionally closes its PR and deletes the local branch; a stack on GitHub is recreated without it. Conflicts pause with Resolve/Continue/Abort, and Abort puts every branch back exactly where it was.
• Submit: offers a rebase if needed, asks for titles/bodies/draft state of new PRs, pushes, opens them, recreates the GitHub stack when its order changed (GitHub can only append), then gh stack submit --auto.
• Sync / Sync & prune / Rebase (stack, upstack, downstack) / Push / Merge buttons; rebase conflicts open the IDE merge tool with Continue/Abort in a banner; sync divergence is detected and resolved in a dialog.
• Layer diff: a branch's own changes against its parent — exactly what its PR shows.
• Activity log under the tree: live output of every operation with Cancel, history and Undo (restores local branches and the stack to before the last rebase, insert, remove, move or sync).
• Move Changes to Stack Layer… (also in the Commit tool window's context menu): commit selected uncommitted files on another layer, then rebase the layers above it.
• Merge status per PR: draft, review required, changes requested, checks failing/running, conflicts, approved, and ⛔ #N when a lower layer blocks merging. Labels are clickable (PR, checks page, blocking branch); hover for details. Statuses refresh every minute.
• Conflicts open the IDE merge tool automatically, and the stack rebase continues once they're resolved — also when you use the IDE's own "Continue Rebase".
• Agent tools (MCP), off by default: with "Let AI agents use stack tools" on (Settings ▸ Tools ▸ Stacked PRs) and the IDE's MCP server enabled (Settings ▸ Tools ▸ MCP Server), agents get stack_view, stack_checkout, stack_insert_branch, stack_remove_branch, stack_move_changes, stack_rebase(_continue/_abort), stack_push, stack_submit, stack_sync, stack_mark_ready and stack_undo, which run the same workflows as the UI and show up in the activity log. Turning the setting off stops the tools at once; agents see them added or removed after the IDE restarts.
• gh stack modify and the interactive submit editor run in an IDE terminal tab.

Two-stroke chords: prefix ⌘⌥K (macOS) or Ctrl+Alt+X (Windows/Linux), then L switcher · W tool window · U up · D down · T top · B bottom · S sync · R rebase upstack · P push · I insert below · A add branch.

./gradlew test                       # unit + real-CLI integration tests (skipped without gh stack)
./gradlew runIde                     # sandbox IDE with the plugin
./gradlew buildPlugin                # build/distributions/*.zip → Settings ▸ Plugins ▸ Install Plugin from Disk
./gradlew verifyPlugin               # binary compatibility with JetBrains' recommended IDE releases

Add -PideLocalPath=/path/to/WebStorm.app to use an installed IDE instead of downloading one (also makes verifyPlugin check against it), and -PrunIdeProject=/path/to/repo to open a project in the sandbox.

• .github/workflows/ci.yml (push to main, PRs, manual): installs gh stack v0.1.1 and runs ./gradlew test buildPlugin with GHSTACK_REQUIRE_CLI=true, so the CLI integration tests fail instead of skipping when the extension is missing; uploads the plugin zip.
• .github/workflows/verify.yml (push to main, weekly, manual): ./gradlew verifyPlugin.
• .github/workflows/release.yml (tags v*): tests, verifies, signs and publishes to JetBrains Marketplace, then creates a GitHub release with the signed zip.

MIT