pr

name	pr
description	Create a PR for the current branch (targets `canary` by default), including splitting one cross-layer branch into ordered stacked PRs so a lower layer (db / shared package / server TRPC) merges before its callers (desktop / CLI / UI). Use when the user asks to create / submit a PR, or to split a branch because clients call a server contract that isn't on the trunk yet. Triggers on 'pr', 'create pr', 'submit pr', 'open a PR', 'pull request', 'split this PR', 'stacked PR', 'backend should merge first', '提 PR', '提个 PR', '新建 PR', '拆 PR', '后端先合', '分层合并'.
user-invocable	true

Create Pull Request

Branch Strategy

• Target branch: canary (development branch, cloud production)
• main is the release branch — never PR directly to main

Steps

1. Gather context (run in parallel)

• git branch --show-current — current branch name
• git status --short — uncommitted changes
• git rev-parse --abbrev-ref @{u} 2>/dev/null — remote tracking status
• git log --oneline origin/canary..HEAD — unpushed commits
• gh pr list --head "$(git branch --show-current)" --json number,title,state,url — existing PR
• git diff --stat --stat-count=20 origin/canary..HEAD — change summary

2. Handle uncommitted changes on default branch

If current branch is canary (or main) AND there are uncommitted changes:

1. Analyze the diff (git diff) to understand the changes
2. Infer a branch name from the changes, format: <type>/<short-description> (e.g. fix/i18n-cjk-spacing)
3. Create and switch to the new branch: git checkout -b <branch-name>
4. Stage relevant files: git add <files> (prefer explicit file paths over git add .)
5. Commit with a proper gitmoji message
6. Continue to step 3

If current branch is canary/main but there are NO uncommitted changes and no unpushed commits, abort — nothing to create a PR for.

3. Push if needed

• No upstream: git push -u origin $(git branch --show-current)
• Has upstream: git push origin $(git branch --show-current)

4. Search related GitHub issues

• gh issue list --search "<keywords>" --state all --limit 10
• Only link issues with matching scope (avoid large umbrella issues)
• Skip if no matching issue found

5. Create PR with gh pr create --base canary

• Title: <gitmoji> <type>(<scope>): <description>
• Body: based on PR template (.github/PULL_REQUEST_TEMPLATE.md), fill checkboxes
• Link related GitHub issues using magic keywords (Fixes #123, Closes #123)
• Link Linear issues if applicable (Fixes LOBE-xxx)
• Use HEREDOC for body to preserve formatting

6. Open in browser

gh pr view --web

PR Template

Use .github/PULL_REQUEST_TEMPLATE.md as the body structure. Key sections:

• Change Type: Check the appropriate gitmoji type
• Related Issue: Link GitHub/Linear issues with magic keywords
• Description of Change: Summarize what and why
• How to Test: Describe test approach, check relevant boxes

Notes

• Language: All PR content must be in English
• If a PR already exists for the branch, inform the user instead of creating a duplicate

---

Stacked PRs (cross-layer feature)

The steps above create one PR for the current branch. When a single branch lands across layers — packages/database schema/model → a shared packages/* lib → src/server TRPC → apps/desktop + apps/cli callers → src/features UI — shipping it as one PR can't merge safely: the clients call an endpoint that doesn't exist on the trunk until the same PR merges, so any partial/rollback or independent review breaks. Split it into ordered PRs, lower layer first.

The ordering rule

A PR may only merge after every layer it calls is already on the trunk.

• The server contract (new TRPC procedure, changed return shape, new table/model) merges first.
• The callers (desktop, CLI, UI) merge after — they invoke that contract.
• Tie-break with one question: "if this merged alone to canary right now, would it build and behave?" If no, it belongs in a later PR.

Which file goes in which PR

The non-obvious calls:

• Frontend that adapts to a contract change goes WITH the server PR. If you widen a TRPC return shape (e.g. listDevices now returns platform: string | null), the component consuming it must change in the same PR — otherwise the server PR breaks the build on its own. Contract + its in-repo consumers ship together.
• A new shared package goes with its consumer, not the server, unless the server imports it too. A @lobechat/* package imported only by desktop/CLI ships in the client PR. Don't carry an unused package in the lower PR.
• Workspace dep declarations (package.json workspace:*, pnpm-workspace.yaml) travel with the code that imports the package.

The git recipe — split an existing full branch

Starting point: one branch (feat/x) with a single commit <FULL> containing everything, already pushed (so it's also safe on the remote).

# 1. Safety nets — make the full work unloseable before rewriting anything
git branch backup/x-full <FULL>          # local ref to the full commit
git branch feat/x-clients <FULL>         # the higher-layer branch starts here

# 2. Rewrite the lower-layer branch to lower-layer files only
git checkout feat/x                      # this becomes the SERVER PR
git reset --hard origin/canary
git checkout <FULL> -- <server/db files…>   # stages just those paths
git commit -m "✨ feat(...): <server half>"
git push --force-with-lease origin feat/x   # never --force; never push to canary

# 3. Build the higher-layer branch STACKED on the lower branch
git checkout feat/x-clients
git reset --hard feat/x                  # base = the just-rewritten server HEAD
git checkout backup/x-full -- <client/ui files…>   # only the remaining paths
git commit -m "✨ feat(...): <client half>"
git push -u origin feat/x-clients

Then open the higher PR based on the lower branch, not the trunk:

gh pr create --base feat/x --head feat/x-clients --title "…" --body "…"

--base feat/x keeps the diff client-only (no server files leak in) and makes it physically impossible to merge the clients before the server. After the server PR merges to canary, retarget the client PR's base to canary (GitHub usually auto-retargets when the base branch merges; note it in the PR body so a human confirms).

Verify the dependency actually holds

The whole point is the higher layer needs the lower one. Prove it: on the stacked higher branch, type-check the caller and confirm the symbol the lower layer introduced resolves.

cd apps/cli && bun run type-check 2>&1 | grep -iE "connect\.ts|device\.register"
# empty (re: your change) = the stacked base supplies device.register ✓

Filter to your touched files — this repo's standalone type-check emits pre-existing env noise (__ELECTRON__, @/types/llm, unbuilt @lobechat/types) that isn't yours.

PR + Linear bookkeeping

• Each PR closes only its own layer's issues. Server PR: Closes LOBE-<server>. Client PR: Closes LOBE-<pkg> / <desktop> / <cli>. Don't let one PR's body claim another layer's issue.
• Both PRs are Part of LOBE-<parent>.
• On PR creation, move each closed sub-issue to In Review (not Done) and add a completion comment — see the linear skill.

Gotchas

• Never push to canary. A split branch cut with git checkout -b feat/x origin/canary tracks origin/canary, so a bare git push targets canary. Always git push origin feat/x with the explicit branch name.
• --force-with-lease, not --force when rewriting the lower branch — it aborts if the remote moved under you.
• Back up before reset --hard. Step 1's backup/x-full + the pushed remote branch mean the full commit is referenced by ≥3 refs before you rewrite anything. Verify with git branch --contains <FULL>.
• Lockfiles: this monorepo commits no root pnpm-lock.yaml, so a new workspace:* dep needs no lockfile churn. In a repo that does commit one, regenerate it on each branch after the split.
• Don't over-split. Two PRs (contract / callers) is usually enough. A UI page that only reads an existing endpoint can be its own later PR, but don't fragment a single layer across PRs for its own sake.