Review, Merge, and Port a PR

Overview

A pull request is not done when the code looks right. It is done when both reviewers (Claude /code-review and Codex) report no blocking issues, CI is green, the PR is merged, the user is notified, and - if the same change belongs in the SAAS repo - it has been ported there and a PR opened.

This skill drives a PR end-to-end against the open-source fluid-calendar repo (git@github.com:dotnetfactory/fluid-calendar.git), then decides whether the SAAS repo at ~/src/fluid-calendar-saas needs the same fix.

Core principle: Never merge over an unresolved blocker, and never lose the SAAS port. When you cannot make it green yourself, escalate by email - do not merge anyway, and do not silently give up. Do the review in a dedicated git worktree under .claude/worktrees so the main checkout is untouched, and always clean the worktree up when done.

Inputs

• A PR number or URL in the dotnetfactory/fluid-calendar repo. If only a branch was given, resolve the PR with gh pr list --head <branch>.

When NOT to use

• The change is still being written and has no PR yet (write it first, then use this).
• The PR is in a different repo than fluid-calendar (the SAAS-port logic assumes this repo).

Workflow

digraph review_merge_port {
    rankdir=TB;
    "Identify PR + worktree" [shape=box];
    "Claude /code-review" [shape=box];
    "Codex review loop" [shape=box];
    "Green?" [shape=diamond];
    "Fixable?" [shape=diamond];
    "Fix on branch" [shape=box];
    "Email blocker + STOP" [shape=box];
    "CI green?" [shape=diamond];
    "Merge PR" [shape=box];
    "Email: merged" [shape=box];
    "Needed in SAAS?" [shape=diamond];
    "Port + codex loop + open SAAS PR" [shape=box];
    "Clean up worktree" [shape=box];
    "Report" [shape=doublecircle];

    "Identify PR + worktree" -> "Claude /code-review" -> "Codex review loop" -> "Green?";
    "Green?" -> "CI green?" [label="yes"];
    "Green?" -> "Fixable?" [label="no"];
    "Fixable?" -> "Fix on branch" [label="yes"];
    "Fixable?" -> "Email blocker + STOP" [label="no"];
    "Fix on branch" -> "Codex review loop";
    "CI green?" -> "Merge PR" [label="yes"];
    "CI green?" -> "Fixable?" [label="no"];
    "Merge PR" -> "Email: merged" -> "Needed in SAAS?";
    "Needed in SAAS?" -> "Port + codex loop + open SAAS PR" [label="yes"];
    "Needed in SAAS?" -> "Clean up worktree" [label="no"];
    "Port + codex loop + open SAAS PR" -> "Clean up worktree";
    "Clean up worktree" -> "Report";
}

1. Identify the PR and set up a worktree

gh pr view <PR#> --json number,title,headRefName,baseRefName,mergeable,state,url

Do all review/fix work in a dedicated git worktree under .claude/worktrees so the main checkout stays clean. Always git fetch origin first so you operate against the latest main and PR branch. Create the worktree from the PR branch:

git fetch origin                                           # pull the latest main + PR branch
git worktree add .claude/worktrees/pr-<PR#> <headRefName>   # use the PR's headRefName
cd .claude/worktrees/pr-<PR#>

• Ensure .claude/worktrees/ is git-ignored (add it to .gitignore if it is not) so the worktree never shows up as untracked changes in the PR.
• The branch in the worktree tracks the PR; fixes pushed from here update the PR.
• Remember the worktree path - you will remove it in step 10.
• Bring the PR branch up to date with the latest main to minimize conflicts. From inside the worktree, merge current origin/main into the PR branch before reviewing, so the review runs against what will actually merge:

git merge origin/main      # resolve + commit if needed, then `git push` to update the PR

If main moved and this update changes the branch, push it so the PR reflects it. If the merge hits conflicts you cannot cleanly and safely resolve, treat it as a blocker (step 6) rather than forcing it.

2. Claude code-review

Run the regular Claude /code-review over the PR diff (from inside the worktree, where the checked-out branch diffs against main):

• Invoke the code-review skill at a normal effort (e.g. /code-review high). Do not use the ultra cloud variant.
• /code-review reviews the current diff and reports findings inline in the session.

Treat each finding as a candidate issue to address in step 3/4 (classify blocking vs non-blocking the same way as the Codex findings).

3. Codex review loop until green

Run Codex's built-in reviewer against the branch with /codex:review. Then loop:

1. Run /codex:review.
2. Read the findings. Classify each as blocking (correctness bug, security issue, regression, broken build/test) or non-blocking (style, nit, optional).
3. If there are blocking findings, go to step 4 (fix), then come back and re-run /codex:review.
4. Repeat until a review reports no blocking findings = green.

Green = the latest Codex review and the collected Claude /code-review findings have zero unresolved blocking issues.

Loop guard: cap at 5 fix-and-review rounds. If still not green after 5 rounds, treat the remaining findings as an unfixable blocker (step 6).

4. Address issues and re-review

For every blocking finding (from Claude /code-review or Codex):

• Fix it on the PR branch with the smallest correct change. Follow the repo conventions in CLAUDE.md (singleton prisma, @/lib/date-utils, logger with LOG_SOURCE, requireAdmin, SAAS file-extension rules, etc.).
• Run npm run type-check and npm run lint (CI requires zero warnings).
• Commit and git push.
• Re-run the Codex review loop (step 3) until green again. New fixes can introduce new findings, so always re-review after editing.

5. Merge

Only when both reviewers are green and CI checks pass:

gh pr checks <PR#>            # confirm required checks are green
gh pr merge <PR#> --squash --delete-branch

gh pr merge --delete-branch cannot delete a local branch that is still checked out in the worktree. Run the merge from the main checkout (not from inside the worktree), or remove the worktree first (step 10), so the branch deletion succeeds cleanly.

If mergeable is false (conflicts), rebase/merge main, re-run the codex loop, then merge.

6. Blocked path - email and STOP

If a blocking issue cannot be fixed by you - a design decision is required, requirements conflict, infra/CI is broken outside the diff, or the loop guard (step 3) tripped - do not merge. Send an email and stop.

• Send via mgc (Outlook / Microsoft Graph CLI) to emad@elitecoders.co. Follow the mgc instructions in ~/.claude/CLAUDE.md, including the mandatory pre-send identity check (~/bin/mgc users get --user-id me --select userPrincipalName must return emad@elitecoders.co before any send - if not, ABORT and tell the user).
• Subject: [PR #<N>] blocked - needs your input
• Body (plain text, no markdown blockquotes): the PR title + URL, the exact blocking issue(s), what you tried, and the specific decision/help you need.

Then report the blocker to the user and stop. Do not proceed to merge or SAAS port.

7. Notify on merge

Immediately after a successful merge, send an email via mgc (Outlook / Microsoft Graph CLI) to emad@elitecoders.co (run the mandatory pre-send identity check from ~/.claude/CLAUDE.md first):

• Subject: [PR #<N>] merged
• Body: PR title + URL, one-line summary of what shipped, and whether a SAAS port is coming (filled in after step 8).

8. Decide whether the SAAS repo needs the fix

The SAAS repo (~/src/fluid-calendar-saas) is the private superset; the public repo is normally generated from it. Here the fix originated in the public repo, so decide by looking at what the diff actually touched:

• Needs porting when the change touches shared/core code that also exists in the SAAS repo: files NOT marked *.open.ts(x) and NOT under src/app/(open)/ - e.g. src/lib/, src/services/, src/components/ shared files, src/store/, prisma/schema.prisma, API routes, config. Confirm by checking the same path exists in ~/src/fluid-calendar-saas and lacks the fix.
• Does NOT need porting when the change is open-source-only: *.open.ts(x) files, src/app/(open)/ route group, or anything gated to the OS build. The SAAS repo has its own .saas variant.
• Inspect the merged diff to decide: gh pr diff <PR#> --name-only then check each path against the rules above and against ~/src/fluid-calendar-saas.

State your decision explicitly (port / no port) and why.

9. Port to SAAS (only if step 8 says yes)

Do NOT run scripts/sync-repos.sh - that regenerates the whole public repo and is the wrong direction. Apply the change manually.

cd ~/src/fluid-calendar-saas
git fetch origin main && git checkout -b port/<short-name> origin/main

• Re-implement the equivalent change by hand on the corresponding SAAS files. Adapt for SAAS structure where it differs (.saas variants, src/app/(saas)/, feature gating via isSaasEnabled/isFeatureEnabled). Do not blindly copy if the file shape differs.
• Run npm run type-check and npm run lint (use npm install --legacy-peer-deps if needed).
• Run the Codex review loop (step 3) until green in the SAAS repo.
• Push and open a PR - do not merge the SAAS PR, just create it: gh pr create --repo dotnetfactory/fluid-calendar-saas --fill.
• Include the SAAS PR link in the merge notification email (step 7) or send a short follow-up.

10. Clean up the worktree and report

Remove the worktree created in step 1 once the work is done (merged, or stopped at a blocker):

cd <main checkout>                         # leave the worktree dir first
git worktree remove .claude/worktrees/pr-<PR#>
# if it refuses due to leftover state and you are sure: add --force
git worktree prune

Always clean up - even on the blocked/email path (step 6), the worktree should not be left behind. (The SAAS port in step 9 happens in the separate ~/src/fluid-calendar-saas repo and is unaffected by this cleanup.)

Then report back to the user: Claude /code-review + Codex outcomes, that the PR merged (with link), the SAAS decision (port or not, with reasoning), and the SAAS PR link if one was opened.

Quick reference

Common mistakes

• Merging with unresolved blockers. Green means zero blocking findings from both reviewers AND passing CI. A nit is not a blocker; a regression is.
• Skipping the re-review after a fix. Every code change re-opens the Codex loop. Re-run it.
• Infinite loops. Cap at 5 rounds; escalate by email if not green.
• Running scripts/sync-repos.sh to port. Wrong direction and clobbers the public repo. Port to SAAS by hand.
• Merging the SAAS PR. Step 9 only opens a SAAS PR; leave it for review.
• Forgetting the SAAS decision. Always state port / no-port with reasoning, even when the answer is no.
• Not emailing. Email on a true blocker (step 6) and on a successful merge (step 7) - both to emad@elitecoders.co via mgc (Outlook), after the pre-send identity check.
• Treating open-only code as needing a port. *.open.* and (open) route-group changes do not go to SAAS.
• Leaving the worktree behind. Always git worktree remove .claude/worktrees/pr-<N> when done (step 10), including on the blocked/email path. A stale worktree blocks the --delete-branch on merge and clutters the repo.
• Running /code-review ultra. This skill uses the regular /code-review, not the billed cloud ultra variant.