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@AbanoubGhadban
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Summary

Remove this paragraph and provide a general description of the code changes in your pull
request... were there any bugs you had fixed? If so, mention them. If
these bugs have open GitHub issues, be sure to tag them here as well,
to keep the conversation linked together.

Pull Request checklist

Remove this line after checking all the items here. If the item is not applicable to the PR, both check it out and wrap it by ~.

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Add the CHANGELOG entry at the top of the file.

Other Information

Remove this paragraph and mention any other important and relevant information such as benchmarks.

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coderabbitai bot commented Dec 9, 2025

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✨ Finishing touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch upgrade-to-react-on-rails-rsc-v19.2.1

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@claude
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claude bot commented Dec 9, 2025

PR Review: Use v19.0.3 of react-on-rails-rsc as git dependency

Summary

This PR switches the react-on-rails-rsc dependency from npm version ^19.0.3 to a git dependency pointing to the upgrade-to-react-v19.2.1 branch. The change affects both the main Pro package and the dummy test app.


Issues Found

🚨 CRITICAL: Missing Changelog Entry

Per CLAUDE.md, this change should be documented in CHANGELOG_PRO.md since it affects the Pro package:

  • Why: This is a user-visible change that affects which version of react-on-rails-rsc gets installed
  • Action Required: Add an entry explaining the temporary git dependency and why it's needed
  • Format: Follow the format in CLAUDE.md (include PR number and author link)

⚠️ WARNING: Incomplete PR Template

The PR body still contains the template placeholder text:

  • Checklist items are not checked
  • No description of what was changed or why
  • No mention of whether this is temporary or permanent

Recommendation: Update the PR description to explain:

  • Why switching to git dependency (e.g., "Need unreleased React 19.2.1 compatibility fixes")
  • Whether this is temporary (will revert to npm version when published?)
  • Any testing performed

🔍 CONCERN: peerDependencies Version Mismatch

In packages/react-on-rails-pro/package.json:

  • Line 63: peerDependencies still specifies "react-on-rails-rsc": "19.0.3" (exact version)
  • Line 83: devDependencies now uses git branch

Issue: This could cause peer dependency warnings when users install the package, since the git dependency version may not match exactly 19.0.3.

Recommendation: If the git branch has a different version (e.g., 19.0.4 or 19.1.0), update the peerDependency to match or use a range like ^19.0.3.

⚠️ Testing Concern: Build Scripts

Per CLAUDE.md testing guidelines, after modifying package.json you should test:

# Remove node_modules to simulate CI
rm -rf node_modules
pnpm install --frozen-lockfile

# Test build scripts
pnpm run build

# Test yalc publish (critical for Pro package)
cd packages/react-on-rails-pro && pnpm run yalc:publish

Question: Were these tested locally? The PR doesn't mention local testing.


Positive Aspects

Correct workspace syntax maintained: Uses workspace:* for internal dependencies
Consistent changes: Updated both Pro package and dummy app
CI appears to be passing: Most checks are green or in progress
pnpm-lock.yaml updated: Correctly reflects the git dependency


Required Actions Before Merge

  1. Add CHANGELOG_PRO.md entry documenting this change
  2. Update PR description with rationale and testing details
  3. Verify peerDependencies version matches the git branch version
  4. Confirm local testing of build and yalc publish scripts
  5. Check PR template items or remove template boilerplate

Questions for Author

  1. Is this git dependency temporary? Will it revert to npm once a new version is published?
  2. What specific fixes in the upgrade-to-react-v19.2.1 branch are needed?
  3. Have you tested the build and yalc publish flows locally?
  4. Does the version in the git branch match the peerDependency specification?

Risk Assessment

Risk Level: Low-Medium

  • Low risk: Git dependencies work fine in pnpm for internal testing
  • Medium concern: If this is intended for release, users may have issues with git dependencies
  • Blocker: Missing changelog entry violates project guidelines

Overall: The code changes are technically correct, but documentation and testing verification are incomplete. Please address the changelog requirement and confirm local testing before merging.

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github-actions bot commented Dec 9, 2025

size-limit report 📦

Path Size
react-on-rails/client bundled (gzip) 62.33 KB (0%)
react-on-rails/client bundled (gzip) (time) 62.33 KB (0%)
react-on-rails/client bundled (brotli) 53.57 KB (0%)
react-on-rails/client bundled (brotli) (time) 53.57 KB (0%)
react-on-rails-pro/client bundled (gzip) 63.39 KB (0%)
react-on-rails-pro/client bundled (gzip) (time) 63.39 KB (0%)
react-on-rails-pro/client bundled (brotli) 54.53 KB (0%)
react-on-rails-pro/client bundled (brotli) (time) 54.53 KB (0%)
registerServerComponent/client bundled (gzip) 127.63 KB (+79.47% 🔺)
registerServerComponent/client bundled (gzip) (time) 127.63 KB (+79.47% 🔺)
registerServerComponent/client bundled (brotli) 61.86 KB (+0.97% 🔺)
registerServerComponent/client bundled (brotli) (time) 61.86 KB (+0.97% 🔺)
wrapServerComponentRenderer/client bundled (gzip) 122.2 KB (+85.86% 🔺)
wrapServerComponentRenderer/client bundled (gzip) (time) 122.2 KB (+85.86% 🔺)
wrapServerComponentRenderer/client bundled (brotli) 56.99 KB (+1.02% 🔺)
wrapServerComponentRenderer/client bundled (brotli) (time) 56.99 KB (+1.02% 🔺)

@claude
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claude bot commented Dec 10, 2025

Code Review

Thank you for this PR! I've reviewed the changes to update react-on-rails-rsc to use a git dependency instead of the npm version. Here's my feedback:

⚠️ Critical Issues

1. PR Description is Incomplete

The PR description uses the template placeholders without providing actual information:

  • ❌ No summary of what changes were made or why
  • ❌ Checklist items not addressed (tests, docs, changelog)
  • Action needed: Please update the PR description to explain:
    • Why switching from npm version ^19.0.3 to the git branch upgrade-to-react-v19.2.1?
    • What issue does this solve?
    • Is this temporary (waiting for npm publish) or permanent?

2. Version Mismatch: peerDependencies vs devDependencies

In packages/react-on-rails-pro/package.json:

  • Line 63: peerDependencies specifies "react-on-rails-rsc": "19.0.3" (exact version)
  • Line 83: devDependencies now uses git URL pointing to a different branch

Problem: The peerDependency constraint (19.0.3) doesn't match what's actually being installed (git branch). This could cause:

  • Warnings during installation
  • Confusion about which version is expected
  • Potential runtime issues if the git branch has breaking changes

Recommendation: Update the peerDependencies constraint to match what you're actually using:

"peerDependencies": {
  "react": ">= 16",
  "react-dom": ">= 16",
  "react-on-rails-rsc": "^19.0.3 || git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"
}

Or if this is temporary, document when you'll revert to the npm version.

3. Missing CHANGELOG Entry

According to CLAUDE.md, this appears to be a Pro-only change that should have a changelog entry in react_on_rails_pro/CHANGELOG.md if it's user-visible.

Questions:

  • Is this change temporary (for development/testing)?
  • Will users need to update their dependencies to use this git URL?
  • If so, this needs documentation in the changelog

4. Mandatory Local Testing Not Documented

Per CLAUDE.md section on testing build scripts, when changing dependencies you MUST:

# 1. Test clean install (CRITICAL - this is what CI does first)
rm -rf node_modules
pnpm install --frozen-lockfile

# 2. Test build scripts
pnpm run build

# 3. Test yalc publish (critical for local development)
pnpm run yalc:publish

Action needed: Please confirm you've run these tests locally and that all passed.

🔍 Code Quality Observations

5. Git Dependencies are Fragile

Git dependencies pointing to branches (not tags or commit SHAs) can cause issues:

  • Good: The lockfile captures the exact commit SHA (f00f4f96578b0de1224284f011e20817c4186261)
  • ⚠️ Risky: If someone else runs pnpm install without --frozen-lockfile, they might get a different commit
  • 📝 Best practice: Consider using a commit SHA or tag instead of a branch name:
    "react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#f00f4f96578b0de1224284f011e20817c4186261"

6. Peer Dependency Constraints Changed

The lockfile shows the git version has different peer dependencies:

  • Was: react ^19.0.1, react-dom ^19.0.1
  • Now: react ^19.2.1, react-dom ^19.2.1

This is a tighter constraint that could affect compatibility. Ensure your React versions align.

✅ Positive Observations

  • Changes are consistent across both locations (Pro package and dummy app)
  • Lockfile properly updated with the commit SHA
  • Changes are minimal and focused

📋 CI Failures

Some CI checks are failing:

  • check-bundle-size: FAILURE
  • build (22): FAILURE
  • dummy-app-node-renderer-e2e-tests: FAILURE
  • package-js-tests: FAILURE

Action needed:

  1. Before pushing fixes, verify these failures are from your changes and not pre-existing
  2. See CLAUDE.md section "Before You Start: Check CI Status" for commands to check if master is passing
  3. Test locally using bin/ci-rerun-failures to replicate the exact failures

🎯 Action Items Summary

  1. ✍️ Update PR description - Explain why this change is needed
  2. 🔧 Fix version mismatch - Update peerDependencies to match devDependencies
  3. 📝 Add changelog entry - If this is user-facing (or document that it's temporary)
  4. Confirm local testing - Run the mandatory build/install tests
  5. 🐛 Investigate CI failures - Determine if they're from this PR or pre-existing
  6. 💡 Consider using commit SHA - Instead of branch name for stability

Overall Assessment: The code changes are straightforward, but the PR lacks context and has some dependency management issues that need addressing. The CI failures also need investigation before merging.

@claude
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claude bot commented Dec 10, 2025

Code Review for PR #2197

Summary

This PR changes the react-on-rails-rsc dependency from a published npm package (^19.0.3) to a git dependency pointing to a branch (upgrade-to-react-v19.2.1). The changes affect both the Pro package and its dummy app.


Critical Issues

🚨 1. Incomplete PR Description

  • The PR description still contains placeholder text ("Remove this paragraph...")
  • No explanation of why this change is needed
  • No context about what bugs exist in v19.0.3 or what the branch fixes
  • Missing checklist items (tests, documentation, CHANGELOG)

Impact: Reviewers and future developers can't understand the purpose of this change.

Recommendation: Update the PR description to explain:

  • What issue with v19.0.3 requires using a git dependency?
  • What does the upgrade-to-react-v19.2.1 branch contain?
  • Is this temporary until v19.0.4 is published, or permanent?
  • What testing has been done?

🚨 2. PeerDependency Version Mismatch

File: packages/react-on-rails-pro/package.json

The peerDependencies section still specifies:

"peerDependencies": {
  "react-on-rails-rsc": "19.0.3"
}

But the actual dependency installed is now from a git branch which reports version 19.0.3 with peer dependencies:

"react": "^19.2.1",
"react-dom": "^19.2.1"

Problem:

  1. The peerDependencies constraint "19.0.3" is too strict—it won't match the git version
  2. The git branch upgrades React peer deps to ^19.2.1, but your package still accepts >= 16

Impact: Users installing react-on-rails-pro may get peer dependency warnings or errors.

Recommendation:

"peerDependencies": {
  "react": ">= 19.0.1",  // Update if 19.2.1 is now required
  "react-dom": ">= 19.0.1",
  "react-on-rails-rsc": "19.0.3 || git+https://github.com/shakacode/react_on_rails_rsc"
}

Or mark as fully optional if the git URL is temporary.


⚠️ 3. Git Dependencies are Fragile

Using git dependencies introduces several risks:

Security & Stability:

  • The branch can be force-pushed or deleted, breaking all builds
  • No semver guarantees—breaking changes can land without warning
  • Harder to audit—no published package checksum

Maintenance:

  • Future developers won't know when to switch back to npm
  • No clear migration path documented

Recommendation:

  • Add a TODO comment or GitHub issue tracking when to switch back to npm version
  • Document in CHANGELOG_PRO.md that this is a temporary measure
  • Consider publishing a beta/RC version instead: 19.0.4-beta.1

⚠️ 4. CI Failures Not Addressed

The PR has failing CI checks:

  1. Bundle Size Check - Failed
  2. JS unit tests for Renderer package - Failed
  3. Pro Package Tests - Failed
  4. Pro Integration Tests (E2E) - Failed/Cancelled

Per CLAUDE.md guidelines:

"CRITICAL - LOCAL TESTING REQUIREMENTS: NEVER claim a test is 'fixed' without running it locally first"

Required Actions Before Merge:

  1. Investigate why bundle size check failed
  2. Run failing tests locally: pnpm run test in Pro package
  3. Fix or document why failures are unrelated to your changes
  4. Ensure pnpm install --frozen-lockfile works in fresh environment

Best Practices Violations

5. Missing CHANGELOG Entry

Per CLAUDE.md:

"When making changes, update the appropriate changelog(s)"

This is a user-visible change (dependency upgrade) that should be documented in CHANGELOG_PRO.md.

Recommendation:

#### [Unreleased]
##### Pro-Only
- [PR 2197](https://github.com/shakacode/react_on_rails/pull/2197) by [AbanoubGhadban](https://github.com/AbanoubGhadban): Temporarily use git dependency for react-on-rails-rsc to get React 19.2.1 peer dependency updates

6. No Local Testing Evidence

Per the project guidelines, you should test:

# Remove node_modules to simulate CI
rm -rf node_modules
pnpm install --frozen-lockfile

# Build packages
pnpm run build

# Run Pro package tests
cd packages/react-on-rails-pro
pnpm test

Please confirm you've run these commands successfully before merging.


Lower Priority Concerns

7. Lock File Changes Are Large

The pnpm-lock.yaml changes show the package is being fetched from:

https://codeload.github.com/shakacode/react_on_rails_rsc/tar.gz/f00f4f96578b0de1224284f011e20817c4186261

This commit hash (f00f4f9) is pinned, which is good for reproducibility. However, verify this is the intended commit.


Recommendations Summary

Must Fix Before Merge:

  1. Fill out PR description - Explain why this change is necessary
  2. Fix CI failures - Investigate and resolve all failing tests
  3. Update peerDependencies - Align with actual git dependency requirements
  4. Add CHANGELOG entry - Document in CHANGELOG_PRO.md
  5. Verify local testing - Run full test suite and document results

Should Fix:

  1. 📝 Add migration plan - Document when/how to switch back to npm version
  2. 📝 Update package peer deps - Clarify if React 19.2.1 is now minimum

Nice to Have:

  1. 💡 Consider publishing 19.0.4-beta.1 instead of using git dependency

Overall: This change may be necessary for compatibility, but it needs proper documentation, testing verification, and CI fixes before it's safe to merge.

@claude
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claude bot commented Dec 10, 2025

Code Review for PR #2197

Summary

This PR updates react-on-rails-rsc from version ^19.0.3 (published npm package) to a git dependency pointing to the upgrade-to-react-v19.2.1 branch. This appears to be testing upcoming changes before they are published.


⚠️ Critical Issues

1. Inconsistent Peer Dependency Declaration

Location: packages/react-on-rails-pro/package.json:63

The peerDependencies still declares:

"react-on-rails-rsc": "19.0.3"

But the devDependencies now uses a git dependency. This creates a mismatch:

  • peerDependencies tell consumers "you need exactly 19.0.3"
  • Actual dependency uses a git branch that may have different version/features

Impact: Users installing react-on-rails-pro will get peer dependency warnings if they're using the git dependency.

Recommendation:

  • If this is temporary (testing before release), consider updating peerDependencies to match: "react-on-rails-rsc": "^19.0.3 || git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1" (though this is non-standard)
  • Or update to a version range: "react-on-rails-rsc": ">=19.0.3"
  • Best approach: Document in PR description that this is temporary until [email protected] is published, then revert to version range

2. Missing PR Description & Checklist

The PR description contains only the template placeholders without actual content:

  • ❌ No explanation of why git dependency is needed
  • ❌ No mention of what features/fixes are being tested
  • ❌ Checklist items not completed (tests, docs, changelog)

Required before merge:

  1. Fill out the "Summary" section explaining:
    • Why switch to git dependency?
    • What features from the branch are needed?
    • When will this be reverted to a published version?
  2. Complete the checklist or mark items as N/A with ~
  3. Update CHANGELOG if this is user-facing (per CLAUDE.md guidelines)

3. PNPM Lockfile Changes Show Version Mismatch

The lockfile shows the git dependency resolves to:

version: 19.0.3
peerDependencies:
  react: ^19.2.1
  react-dom: ^19.2.1

But react-on-rails-pro/package.json devDependencies use:

"react": "^19.0.1",
"react-dom": "^19.0.1"

Potential Issue: The git dependency expects React 19.2.1+ but you're testing with 19.0.1. This could mask compatibility issues.

Recommendation:

  • Update React/React-DOM to ^19.2.1 to match the peer dependency requirements
  • Or verify 19.0.1 is intentional for backward compatibility testing

📋 Process & Documentation Issues

4. CRITICAL: Local Testing Requirements (per CLAUDE.md)

Per the project's CLAUDE.md guidelines:

NEVER claim a test is "fixed" without running it locally first

The CI shows multiple failures:

  • check-bundle-size: FAILURE
  • build (22): FAILURE
  • dummy-app-node-renderer-e2e-tests: FAILURE
  • package-js-tests: FAILURE

Before merging, you MUST:

  1. Test locally using the replication tools from CLAUDE.md:

    # Replicate CI failures locally
    bin/ci-rerun-failures 2197
    
    # Or test specific failures
    pnpm install --frozen-lockfile  # Test clean install
    pnpm run build                  # Test build
    pnpm run test                   # Test JS tests
  2. If you cannot test locally, clearly state why in the PR description:

    • "Working in isolated environment - cannot test X"
    • "Requires Y setup not available"
  3. Mark fixes appropriately:

    • ✅ Use "This fixes..." ONLY after local verification
    • ⚠️ Use "This SHOULD fix..." for untested changes

5. Mandatory Testing Checklist (per CLAUDE.md)

Since this changes package dependencies, you MUST run:

# Step 1: Clean install (most critical)
rm -rf node_modules
pnpm install --frozen-lockfile

# Step 2: Build packages  
pnpm run build

# Step 3: Test yalc publish (critical for local dev)
pnpm run yalc:publish

# Step 4: Verify build artifacts exist
ls -la packages/react-on-rails-pro/lib/ReactOnRails.full.js

# Step 5: Run tests
pnpm run test

Have these steps been completed? Please document results in PR comments.


🔍 Code Quality Observations

6. Git Dependencies Are Fragile

Risk: Git dependencies:

  • Pin to specific commit (f00f4f96...) which may be force-pushed or deleted
  • Don't benefit from npm's version resolution
  • Make dependency trees harder to reason about
  • Can cause issues with pnpm workspace resolution

Best Practice:

  • Use git dependencies ONLY for pre-release testing
  • Add a TODO comment in package.json to revert once published:
    // TODO: Revert to published version once [email protected] is released
    "react-on-rails-rsc": "git+https://...",
  • Create a follow-up issue/reminder to switch back

7. Three Files Changed - Consistency Check

Changes span:

  1. packages/react-on-rails-pro/package.json
  2. react_on_rails_pro/spec/dummy/package.json
  3. pnpm-lock.yaml

Good: All three locations updated consistently ✅

Question: Why is react_on_rails_pro/spec/dummy separate from packages/react-on-rails-pro?

  • This seems like duplicate configuration
  • Consider if the dummy app needs the git dependency or if it should use workspace:*

✅ What's Done Well

  1. Consistent updates across both package.json files
  2. Lockfile included - prevents drift
  3. Small, focused change - easy to review and revert

📝 Required Actions Before Merge

Must Fix:

  • Update PR description with actual summary and rationale
  • Complete or skip checklist items (~item~ for N/A)
  • Fix CI failures and test locally per CLAUDE.md
  • Document testing performed in PR comments
  • Address peer dependency mismatch (see issue TODO for first version #1)
  • Add TODO/issue to revert git dependency once published

Should Consider:

  • Update React to 19.2.1 to match peer deps
  • Update CHANGELOG if user-facing
  • Add comment explaining temporary git dependency

🎯 Recommendation

Status:NOT READY TO MERGE

This PR needs significant work before merging:

  1. CI is failing (multiple jobs)
  2. PR description is incomplete
  3. Local testing not documented
  4. Peer dependency mismatch

Next Steps:

  1. Fill out PR description with context
  2. Run local testing checklist above
  3. Fix or document CI failures
  4. Address peer dependency version mismatch
  5. Add plan to revert git dependency

Once these are addressed, the actual code changes look reasonable for a temporary dependency update.


Review generated following project guidelines from CLAUDE.md and avoiding-ci-failure-cycles.md

@claude
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claude bot commented Dec 10, 2025

Fresh Code Review - PR #2197

I notice this PR has received several AI reviews already. Let me provide a concise, actionable summary and highlight issues that haven't been fully addressed.


🎯 The Core Question: Why This Change?

The PR title says: "use v19.0.3 of react-on-rails-rsc as git dep"
But the branch name says: upgrade-to-react-v19.2.1

Missing context: What specific issue requires switching from the published npm package to a git dependency? The PR description needs to explain:

  • What bug/feature in the git branch is needed?
  • Is this temporary (waiting for npm publish) or permanent?
  • What testing has verified this works?

⚠️ Critical Issues That Block Merge

1. CI Failures - 4 jobs failing

Per CLAUDE.md, you MUST investigate CI failures before merge:

# First, check if master is passing (these may be pre-existing failures)
gh run list --workflow="Bundle Size" --branch master --limit 5

# Then replicate failures locally
bin/ci-rerun-failures 2197

The 15-Minute Rule from CLAUDE.md:

"If I spent 15 more minutes testing locally, would I discover this issue before CI does?"

The answer here is YES. Please run locally:

rm -rf node_modules
pnpm install --frozen-lockfile
pnpm run build
pnpm run test

2. Peer Dependency Constraint Mismatch

packages/react-on-rails-pro/package.json line 63 has:

"peerDependencies": {
  "react-on-rails-rsc": "19.0.3"  // Exact version
}

But line 83 installs from a git branch. The pnpm lockfile shows this git dependency has different peer dependency requirements:

peerDependencies:
  react: ^19.2.1      # Was: ^19.0.1
  react-dom: ^19.2.1  # Was: ^19.0.1

This is a breaking change that needs to be:

  1. Documented in CHANGELOG_PRO.md (required per CLAUDE.md)
  2. Tested with React 19.2.1 (currently testing with 19.0.1)
  3. Explained in the PR description

3. Git Dependencies Are a Code Smell

From CLAUDE.md testing guidelines, git dependencies should be temporary and well-documented. Add a comment explaining when this will be reverted:

"devDependencies": {
  // TODO: Revert to npm version once react-on-rails-rsc v19.x.x is published
  // Tracking issue: #XXXX
  "react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"
}

📋 Required Before Merge (per CLAUDE.md)

  • Fill out PR description - Remove template boilerplate, explain the change
  • Update CHANGELOG_PRO.md - This upgrades peer dependencies (user-facing)
  • Fix or explain CI failures - 4 jobs are failing
  • Test locally - Document that you ran: clean install → build → tests
  • Update peerDependencies - Match the git branch requirements or explain why not
  • Add revert plan - Comment or issue tracking when to switch back to npm

💡 Recommendations

  1. Check if master is broken first:

    gh run list --branch master --limit 5 --json conclusion,createdAt

    If these tests were already failing, document that in the PR.

  2. Consider publishing a beta instead:
    Instead of a git dependency, could you publish [email protected]? This is more stable and easier to track.

  3. Test with matching React versions:
    The git dependency expects React 19.2.1+. Either:

    • Upgrade your React dev dependencies to 19.2.1, OR
    • Explain why testing with 19.0.1 is intentional

✅ What's Good

  • Changes are minimal and focused
  • Lockfile properly tracks the exact commit SHA
  • Both locations (Pro package + dummy app) updated consistently

🎯 Bottom Line

Status: NOT READY TO MERGE

This PR needs:

  1. ✍️ Context in the description
  2. 🔍 CI failure investigation
  3. 📝 CHANGELOG entry
  4. ✅ Local testing verification

The actual code change is straightforward, but the process and documentation are incomplete. Following the guidelines in CLAUDE.md will prevent this from breaking master or causing issues for users.


Review based on project guidelines in CLAUDE.md, avoiding-ci-failure-cycles.md, and testing-build-scripts.md

@claude
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claude bot commented Dec 10, 2025

Code Review

Summary

This PR updates the react-on-rails-rsc dependency from a published npm version (^19.0.3) to a git dependency pointing to a feature branch (upgrade-to-react-v19.2.1). The change affects both the Pro package and its dummy test application.


🔴 Critical Issues

1. Incomplete PR Template

The PR description still contains all placeholder text and hasn't been filled out. Please provide:

  • Summary: Why are we switching to a git dependency? Is this for testing an unreleased version of react-on-rails-rsc?
  • Testing: What tests were run to verify this works?
  • Checklist: Complete the checklist items

2. Missing CHANGELOG Entry

According to CLAUDE.md, this is a Pro package change and requires an update to react_on_rails_pro/CHANGELOG.md. However, this appears to be a temporary dependency change for testing purposes. Please clarify:

  • Is this a permanent change or temporary for testing?
  • If temporary, it may not need a CHANGELOG entry
  • If permanent, add an entry explaining why we're using a git dependency

3. Git Dependency Concerns

Using a git dependency instead of a published version has several implications:

Testing Requirements (from .claude/docs/testing-build-scripts.md):
Since you've modified package.json, you MUST test locally:

# Step 1: Test clean install (CRITICAL)
rm -rf node_modules
pnpm install --frozen-lockfile

# Step 2: Test build scripts
pnpm run build

# Step 3: Test package scripts
pnpm run prepack
pnpm run yalc:publish

Production Concerns:

  • Git dependencies can break if the branch is deleted or force-pushed
  • No semver versioning protection
  • Installation is slower and less reliable than published packages
  • Makes releases more fragile

Recommendation: If this is for testing a pre-release version of react-on-rails-rsc, consider:

  1. Publishing a beta/RC version to npm instead
  2. Adding a comment in package.json explaining the temporary nature
  3. Creating a follow-up issue to revert to a published version

4. PeerDependency Version Mismatch

The peerDependencies in packages/react-on-rails-pro/package.json:63 still specifies:

"react-on-rails-rsc": "19.0.3"

But you're now using a git dependency that may have different requirements. The lockfile shows the git version expects:

react: ^19.2.1
react-dom: ^19.2.1

This is stricter than your current devDependencies (^19.0.1). Consider:

  • Updating the peerDependency specification if the requirements have changed
  • Verifying that the peer dependency requirements in the git branch are correct

⚠️ Test Failures

The PR has 3 failing CI checks:

  1. check-bundle-size - Bundle size check failed
  2. build (22) - Build failed on Node 22
  3. dummy-app-node-renderer-e2e-tests - E2E tests failed
  4. package-js-tests - JavaScript tests failed

Action Required:
Before merging, you need to:

  1. Check if these failures existed before your changes (see .claude/docs/testing-build-scripts.md section "Before You Start: Check CI Status")
  2. If pre-existing, document this in the PR
  3. If caused by your changes, investigate and fix

To check if failures are pre-existing:

gh run list --workflow="Build and Test" --branch master --limit 5 --json conclusion,createdAt

✅ Positive Aspects

  1. Consistent Change: The dependency was updated in both locations where it's used (Pro package and dummy app)
  2. Lockfile Updated: pnpm-lock.yaml was properly updated, which is good
  3. Minimal Scope: The change is focused and doesn't modify unrelated code

📋 Required Actions Before Merge

  • Fill out the PR template with actual information
  • Test locally using the commands from .claude/docs/testing-build-scripts.md
  • Investigate and resolve (or document as pre-existing) the 3 CI failures
  • Add CHANGELOG entry OR clarify that this is temporary
  • Consider updating peerDependency specification for react-on-rails-rsc
  • Add a TODO comment in package.json if this is temporary: // TODO: Revert to published version after react-on-rails-rsc releases v19.x.x
  • Verify the git branch upgrade-to-react-v19.2.1 is stable and won't be force-pushed

🤔 Questions for Clarification

  1. What's the purpose of this change? Testing a new feature? Bug fix?
  2. Is this intended to be merged or is it a draft for testing?
  3. When will react-on-rails-rsc publish a proper version we can switch to?
  4. Have you tested that the git dependency installs correctly in a fresh clone?

📚 References

  • CLAUDE.md - Changelog requirements, testing requirements
  • .claude/docs/testing-build-scripts.md - Mandatory testing for package.json changes
  • .claude/docs/master-health-monitoring.md - Ensuring master stays green

@claude
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claude bot commented Dec 10, 2025

Code Review - PR #2197

Summary

This PR upgrades the react-on-rails-rsc dependency from the published npm version (^19.0.3) to a git dependency pointing to the upgrade-to-react-v19.2.1 branch.


⚠️ Critical Issues

1. Inconsistent peerDependencies Declaration

Location: packages/react-on-rails-pro/package.json:63

The peerDependencies still specifies:

"peerDependencies": {
  "react-on-rails-rsc": "19.0.3"
}

But the devDependencies now uses a git dependency. This creates an inconsistency where:

  • Users installing this package will be told they need exactly version 19.0.3
  • But the development/testing environment uses a different version from git

Recommendation:

  • If this is a temporary change (testing an unreleased version), update peerDependencies to accept a range that includes the upcoming version:
    "react-on-rails-rsc": "^19.0.3"
  • If this branch contains breaking changes, update to:
    "react-on-rails-rsc": "^19.1.0 || ^19.2.0"
  • Document in the PR description why this git dependency is needed and the plan for reverting to a published version

2. Peer Dependency Version Mismatch

The lockfile shows the git version declares different peer dependencies:

peerDependencies:
  react: ^19.2.1
  react-dom: ^19.2.1

But this project currently uses:

"react": "^19.0.1",
"react-dom": "^19.0.1"

While the lockfile resolved to 19.2.0 (which satisfies ^19.2.1), this could cause issues for users on React 19.0.x.

Recommendation:

  • Verify that react-on-rails-rsc truly requires React 19.2.1+
  • If so, update this project's React dependencies to match
  • If not, the git branch should use ^19.0.1 as peer dependencies

📋 Missing Requirements

3. PR Template Not Completed

The PR body still contains placeholder text:

  • Summary section needs to be filled out
  • Checklist items not checked
  • No mention of testing performed

Recommendation: Per CLAUDE.md guidelines, complete the PR template:

  • Explain why the git dependency is needed
  • Document what was tested
  • Update CHANGELOG if this is a user-visible change
  • Check/remove checklist items

4. CHANGELOG Not Updated

Per CLAUDE.md:

Update CHANGELOG.md for user-visible changes only

If this dependency upgrade affects Pro users (e.g., React version requirements, new features), it should be documented in CHANGELOG_PRO.md.

Questions to answer:

  • Does this upgrade introduce breaking changes?
  • Are there new features from the RSC package that Pro users can now use?
  • Is this purely internal/temporary for testing?

5. CI Failures - Testing Requirements Not Met

Failed Jobs:

  • check-bundle-size
  • build (22)
  • dummy-app-node-renderer-e2e-tests
  • package-js-tests

Per CLAUDE.md's CRITICAL LOCAL TESTING REQUIREMENTS:

NEVER claim a test is "fixed" without running it locally first

Required Actions:

  1. Investigate CI failures - Check the logs to understand what broke
  2. Replicate locally using the commands from CLAUDE.md:
    # Test clean install
    rm -rf node_modules
    pnpm install --frozen-lockfile
    
    # Test affected builds
    pnpm run build
    pnpm run test
    
    # Test Pro package specifically
    cd packages/react-on-rails-pro
    pnpm test:rsc
  3. Fix issues before merging
  4. Document what you tested in the PR description

🔍 Code Quality Observations

6. Git Dependency Best Practices

Using git dependencies is acceptable for:

  • Testing unreleased features
  • Coordinating changes across repositories
  • Temporary workarounds

But:

  • ❌ Should never be merged to master for published packages
  • ❌ Blocks users from installing your package via normal npm/pnpm
  • ❌ Makes dependency resolution fragile

Recommendation:

  • If testing a feature, merge this to a feature branch, not master
  • Once [email protected] is published, update to use the published version
  • Add a TODO comment or GitHub issue to track reverting to published version

What Looks Good

  1. Consistent application - Git dependency applied to both places that use it
  2. Lockfile properly updated - pnpm correctly resolved the git dependency
  3. PNPM workspace syntax correct - Not affected by this change, but good to see workspace:* usage elsewhere

📝 Action Items

Before merging:

  1. ✅ Fix CI failures and test locally
  2. ✅ Update peerDependencies to match actual version requirements
  3. ✅ Complete PR template with explanation and testing notes
  4. ✅ Update CHANGELOG_PRO.md if needed (depends on whether this affects users)
  5. ✅ Document the plan for reverting to published version
  6. ✅ Verify React version compatibility (19.0.x vs 19.2.x)
  7. ✅ Consider whether this should target a feature branch instead of master

After initial react-on-rails-rsc release:

  1. ✅ Create follow-up PR to revert to published npm version

💡 Questions for PR Author

  1. What specific features/fixes from the upgrade-to-react-v19.2.1 branch are needed?
  2. When is react-on-rails-rsc planning to publish version 19.2.x?
  3. Should this PR target a feature branch until the published version is available?
  4. Have you tested the Pro dummy app with these changes locally?

Overall Assessment: ⚠️ Needs Work - The approach is reasonable for testing, but several critical items need attention before merging, particularly CI failures and dependency consistency.

@claude
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claude bot commented Dec 10, 2025

Code Review

Summary

This PR switches the react-on-rails-rsc dependency from a published npm version (^19.0.3) to a git dependency pointing to a branch (upgrade-to-react-v19.2.1). This is likely a temporary change to test unreleased features or fixes before they're published.


Critical Issues

🔴 Version Mismatch in peerDependencies

Location: packages/react-on-rails-pro/package.json:63

The peerDependencies field still specifies:

"peerDependencies": {
  "react-on-rails-rsc": "19.0.3"
}

But the actual dependency is now a git branch. This creates an inconsistency:

  • devDependencies (line 83): Points to git branch ✅
  • peerDependencies (line 63): Still expects exact version 19.0.3

Impact: When users install react-on-rails-pro, npm/pnpm will warn about unmet peer dependencies if they have the git version installed.

Recommendation:

"peerDependencies": {
  "react-on-rails-rsc": ">=19.0.3"
}

Or if you want to be more specific:

"peerDependencies": {
  "react-on-rails-rsc": "^19.0.3 || git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"
}

⚠️ Peer Dependency Version Mismatch in pnpm-lock.yaml

Location: pnpm-lock.yaml

The lockfile shows the git dependency now requires:

peerDependencies:
  react: ^19.2.1
  react-dom: ^19.2.1

But your packages specify:

"react": "^19.0.1",
"react-dom": "^19.0.1"

Question: Is this intentional? The upstream branch seems to require React 19.2.1+, but you're testing with 19.0.1. This might cause warnings or compatibility issues.


Missing Requirements

📝 PR Description Not Updated

The PR body still contains the template text. Please:

  • Explain why you need the git dependency (what feature/fix are you testing?)
  • Clarify if this is temporary (will revert to npm version later)
  • Document any testing done with this version

📋 CHANGELOG Not Updated

Per CLAUDE.md guidelines, if this change affects Pro package users, update CHANGELOG_PRO.md. However, if this is purely a temporary development dependency change that won't be released, you can skip this.


Testing Concerns

🧪 Build Script Testing Required

Per CLAUDE.md (see .claude/docs/testing-build-scripts.md), after modifying package.json:

MANDATORY local testing:

# Step 1: Clean install (CRITICAL - simulates CI)
rm -rf node_modules
pnpm install --frozen-lockfile

# Step 2: Build packages
pnpm run build

# Step 3: Test yalc publish
pnpm run yalc:publish

# Step 4: Verify build artifacts
ls -la packages/react-on-rails-pro/lib/ReactOnRails.full.js

Question: Did you run these tests locally before pushing? The CI shows some failures which might be related.


CI Failures

The PR has several CI failures:

  1. Bundle Size Check - Failed
  2. JS Unit Tests for Renderer Package - Failed
  3. Pro Package Tests - Failed
  4. Pro Integration E2E Tests - Failed

Important: Per CLAUDE.md, check if these are pre-existing failures:

# Check if master is passing
gh run list --workflow="Integration Tests" --branch master --limit 5

If master is passing and your PR fails, these failures are introduced by your changes and must be fixed.


Security & Best Practices

Git Dependencies Are Generally Safe Here

Since this points to your own repository (shakacode/react_on_rails_rsc), it's acceptable for development/testing.

⚠️ Temporary Nature Should Be Documented

Git dependencies are typically temporary. Once the upstream branch is merged and published:

  1. Revert to published npm version
  2. Update the version constraint appropriately

Performance Considerations

No performance impact expected - this is just a dependency resolution change.


Recommendations Summary

Before merging:

  1. Fix peerDependencies version mismatch in packages/react-on-rails-pro/package.json
  2. Verify React version compatibility (19.0.1 vs 19.2.1 requirement)
  3. Run mandatory build script tests locally
  4. Investigate and fix CI failures (or confirm they're pre-existing)
  5. Update PR description with context and purpose
  6. Add testing notes - what did you test with this version?
  7. ⚠️ Plan to revert to published version once upstream is released

Nice to have:

  • Add a comment in package.json explaining this is temporary
  • Document in commit message when/why this will be reverted

Code Quality: ⭐⭐⭐ (3/5)

The lockfile changes look correct, but the peerDependencies inconsistency and missing context reduce the score. This would be a 5/5 with the above issues addressed.

@claude
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claude bot commented Dec 10, 2025

Code Review - PR #2197

I notice this PR has received several automated reviews already, so I'll provide a concise summary focusing on actionable items.


📋 What This PR Does

Changes react-on-rails-rsc dependency from published npm version ^19.0.3 to a git dependency pointing to branch upgrade-to-react-v19.2.1.

Files changed:

  • packages/react-on-rails-pro/package.json (line 83)
  • react_on_rails_pro/spec/dummy/package.json (line 55)
  • pnpm-lock.yaml (lockfile updated to commit f00f4f9)

🚨 Issues That Must Be Addressed

1. Missing Context in PR Description

The PR description is still template boilerplate. Please explain:

  • Why switch to git dependency? What issue does this solve?
  • Is this temporary (waiting for npm publish) or permanent?
  • What testing was done to verify this works?

2. Peer Dependency Version Mismatch

In packages/react-on-rails-pro/package.json:

  • Line 63 (peerDependencies): Specifies "react-on-rails-rsc": "19.0.3" (exact)
  • Line 83 (devDependencies): Now uses git branch

Problem: The git branch may have a different version or different peer dependency requirements than 19.0.3. The lockfile shows the git version expects:

"react": "^19.2.1",
"react-dom": "^19.2.1"

But your devDependencies use ^19.0.1.

Action needed:

  • Verify if React 19.2.1+ is now required
  • Update peer dependencies accordingly, or
  • Document why this mismatch is intentional

3. CI Failures Need Investigation

Four CI jobs failed:

  • ❌ Bundle size check
  • ❌ JS unit tests (Renderer)
  • ❌ Pro package JS tests
  • ❌ Pro integration E2E tests

Per CLAUDE.md testing requirements, before claiming these are fixed:

# 1. Check if master is passing these same workflows
gh run list --workflow="Integration Tests" --branch master --limit 3

# 2. Test locally (CRITICAL - simulate CI environment)
rm -rf node_modules
pnpm install --frozen-lockfile
pnpm run build
pnpm run test

# 3. Or use automated tool
bin/ci-rerun-failures 2197

If you cannot test locally (e.g., Conductor workspace), please state why in the PR description and mark the fixes as UNTESTED.

4. Mandatory Build Script Testing

Per .claude/docs/testing-build-scripts.md, when modifying package.json dependencies, you MUST test:

# Remove node_modules to simulate CI
rm -rf node_modules

# Test clean install (MOST CRITICAL)
pnpm install --frozen-lockfile

# Test build
pnpm run build

# Test yalc publish (critical for Pro package)
cd packages/react-on-rails-pro && pnpm run yalc:publish

Please confirm you've run these and they passed.


📝 Documentation Requirements

5. CHANGELOG Entry Missing

Per CLAUDE.md:
\u003e "When making changes, update the appropriate changelog(s)"

This is a Pro package change, so it should be documented in CHANGELOG_PRO.md:

#### [Unreleased]
##### Pro-Only
- [PR 2197](https://github.com/shakacode/react_on_rails/pull/2197) by [AbanoubGhadban](https://github.com/AbanoubGhadban): Temporarily use git dependency for react-on-rails-rsc to support React 19.2.1 peer dependencies

(Adjust wording based on whether this is temporary)


⚠️ Risk Assessment

Git dependencies are fragile:

  • Branch can be force-pushed or deleted
  • No semver guarantees
  • Harder for users to audit

Recommendations:

  1. If temporary, add a TODO comment and create a follow-up issue to switch back to published version
  2. If permanent, consider publishing a beta/RC instead: [email protected]
  3. Document the migration plan in the PR description

✅ What's Good

  • Changes are consistent across both package.json files
  • Lockfile properly updated with commit SHA (good for reproducibility)
  • Small, focused change (easy to review/revert)

🎯 Required Before Merge

Must fix:

  • Update PR description with rationale and testing details
  • Fix or explain CI failures (test locally first)
  • Confirm mandatory build script tests passed
  • Add CHANGELOG_PRO.md entry
  • Address peer dependency version mismatch

Should fix:

  • Add TODO/issue to track reverting git dependency
  • Update React to 19.2.1 if required by git branch

Overall: The code changes are straightforward, but process requirements haven't been met. Please address the testing, documentation, and CI failure items before merging.

Review based on project guidelines from CLAUDE.md, testing-build-scripts.md, and avoiding-ci-failure-cycles.md

@claude
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claude bot commented Dec 10, 2025

Code Review

Summary

This PR updates the react-on-rails-rsc dependency from npm registry version ^19.0.3 to a git dependency pointing to the upgrade-to-react-v19.2.1 branch. This change is applied to both the Pro package and its dummy app.

Critical Issues

1. Incomplete PR Checklist

The PR description still contains template boilerplate and none of the checklist items are checked:

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Action Required:

  • Remove template text and provide a meaningful summary of WHY this change is needed
  • Check or remove checklist items as appropriate
  • Update the Pro CHANGELOG at react_on_rails_pro/CHANGELOG.md

2. peerDependencies Mismatch ⚠️

The pnpm-lock.yaml shows the git dependency has different peer dependency requirements:

  • Before (npm): react: ^19.0.1, react-dom: ^19.0.1
  • After (git): react: ^19.2.1, react-dom: ^19.2.1

However, packages/react-on-rails-pro/package.json:63 still declares:

"peerDependencies": {
  "react-on-rails-rsc": "19.0.3"
}

Action Required:

  • Update the peerDependencies version specification to match the git branch version or use a git URL
  • Document whether this requires users to upgrade React to 19.2.1+

3. CI Failures 🔴

Multiple CI jobs are failing:

  • package-js-tests: Failed after 1m 17s
  • dummy-app-node-renderer-e2e-tests: Failed after 23m 47s
  • check-bundle-size: Failed after 3m 15s
  • build (22): Failed after 1m 14s in "JS unit tests for Renderer package"

Action Required:

  • Investigate and fix all CI failures before merging
  • Per CLAUDE.md: "CRITICAL: NEVER claim a test is 'fixed' without running it locally first"
  • Run tests locally: pnpm test, pnpm run test:rsc

4. Missing Context and Documentation 📝

The PR lacks explanation for:

  • Why are we switching from npm to git dependency?
  • Is this temporary or permanent?
  • What features/fixes from the branch are needed?
  • What's the migration path back to npm once published?

Action Required:

  • Document the reason for using a git dependency
  • If temporary, add a TODO or issue link for switching back
  • Update relevant documentation if users need to know about this

Testing Requirements

Per CLAUDE.md critical requirements, before merging you MUST:

  1. Test package installation:
rm -rf node_modules
pnpm install --frozen-lockfile
  1. Test build scripts:
pnpm run build
pnpm run prepack
  1. Test yalc publishing (critical for local development):
pnpm run yalc:publish
  1. Run all tests locally:
cd packages/react-on-rails-pro
pnpm run test  # Both RSC and non-RSC tests

Security Considerations

Git dependencies are less secure than published packages:

  • Git commits can be force-pushed (though unlikely for a public repo)
  • No npm audit checks for git dependencies
  • Build reproducibility is harder to guarantee

Recommendation: If possible, publish [email protected] to npm instead of using a git dependency.

Best Practices Violations

From CLAUDE.md:

DO NOT push without running full lint check first

bundle exec rubocop
pnpm run format.listDifferent

The CI shows the build passed linting, but ensure you've run these locally.


Action Items Summary

Before this can be merged:

  1. ✅ Fill out PR description with meaningful summary
  2. ✅ Update react_on_rails_pro/CHANGELOG.md
  3. ✅ Fix peerDependencies mismatch in package.json
  4. ✅ Fix all 4 failing CI jobs
  5. ✅ Test locally per instructions above
  6. ✅ Document why git dependency is needed and migration plan
  7. ✅ Consider publishing to npm instead if possible

Overall Assessment: This change needs significant work before it's ready to merge. The incomplete PR description, CI failures, and peerDependencies mismatch need to be addressed. Most importantly, provide context on why a git dependency is necessary versus publishing a new version to npm.

@claude
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claude bot commented Dec 10, 2025

Code Review - PR #2197

Summary

This PR changes the react-on-rails-rsc dependency from a published npm version (^19.0.3) to a git dependency pointing to a feature branch (upgrade-to-react-v19.2.1).


🚨 Critical Issues

1. Inconsistent peerDependency Declaration

Location: packages/react-on-rails-pro/package.json:63

"peerDependencies": {
  "react": ">= 16",
  "react-dom": ">= 16",
  "react-on-rails-rsc": "19.0.3"  // ⚠️ Exact version specified
}

Problem: The peerDependencies still declares react-on-rails-rsc as 19.0.3 (exact version), but you're now installing from a git branch. This creates a mismatch:

  • peerDependency expects exactly 19.0.3
  • Actual installation is from git branch (which resolves to 19.0.3 internally but with a different source)

Impact: This may cause peer dependency warnings or failures when users install the package.

Recommendation:

"peerDependencies": {
  "react": ">= 16",
  "react-dom": ">= 16",
  "react-on-rails-rsc": "^19.0.3"  // Use semver range instead
}

2. Git Dependencies are Anti-Pattern for Production

Problem: Using git dependencies (especially feature branches) introduces several risks:

  1. Instability: The branch can change at any time without version control
  2. CI/CD issues: Git dependencies are slower to install and can fail if the repo is unavailable
  3. Lock file bloat: Git dependencies use commit SHAs which change frequently
  4. No semver guarantees: You lose semantic versioning protection
  5. Breaking changes: The branch owner could force-push breaking changes

Current state: According to the diff, you're pointing to commit f00f4f96578b0de1224284f011e20817c4186261

Best practices:

  • For development/testing: Use git deps temporarily
  • For production/releases: Always use published npm versions
  • For pre-release: Publish beta/alpha versions to npm

Recommendation: If this change is needed for testing unreleased features:

  1. Mark this as a temporary change in the PR description
  2. Add a TODO comment in package.json
  3. Create a follow-up issue to revert to npm version once published
  4. Do NOT merge this to master unless it's explicitly temporary

3. Missing PR Description and Context

Problem: The PR body is still the default template with no actual description:

  • No explanation of WHY the git dependency is needed
  • No mention of what features/fixes are required from the branch
  • No testing evidence
  • No plan for reverting to npm version

Required information:

  1. What specific feature/fix from react-on-rails-rsc is needed?
  2. Why can't you wait for the next npm release?
  3. Is this temporary or permanent?
  4. What's the plan to move back to npm versions?
  5. Have you tested this locally with the git dependency?

4. Test Failures in CI

According to the CI results, there are FAILURES:

  • ❌ Bundle Size check failed
  • ❌ JS unit tests for Renderer package failed
  • ❌ dummy-app-node-renderer-e2e-tests failed
  • ❌ package-js-tests failed

Critical: Before this PR can be approved, you MUST:

  1. Investigate and document why tests are failing
  2. Determine if failures are related to the git dependency change
  3. Fix all failing tests
  4. Follow the project's testing requirements (see CLAUDE.md)

📋 Checklist Issues

From the PR template, you need to:

  • Add/update tests - Are tests affected by this dependency change?
  • Update documentation - Document why git dependency is used
  • Update CHANGELOG - This is a user-visible change if it makes it to release

Note: According to CLAUDE.md, you should update the appropriate changelog. Since this affects the Pro package, you may need to update CHANGELOG_PRO.md.


🔍 Code Quality Notes

Positive aspects:

  • ✅ Only 3 files changed (focused scope)
  • ✅ The change is consistent across both packages/react-on-rails-pro/package.json and react_on_rails_pro/spec/dummy/package.json

Concerns:

  • ⚠️ No verification that the git dependency works correctly
  • ⚠️ No documentation of what features/fixes are being pulled in
  • ⚠️ No testing evidence provided

🧪 Testing Requirements (from CLAUDE.md)

Before pushing, you MUST test:

# 1. Clean install (CRITICAL - this is what CI does)
rm -rf node_modules
pnpm install --frozen-lockfile

# 2. Build packages
pnpm run build

# 3. Test yalc publish (validates package structure)
pnpm run yalc:publish

# 4. Run affected tests
cd react_on_rails_pro/spec/dummy
pnpm test:e2e  # If E2E tests are affected

From CLAUDE.md:

"CRITICAL: Build scripts are infrastructure code that MUST be tested manually"


💡 Recommendations

Immediate actions:

  1. Update PR description with clear rationale and plan
  2. Fix all CI failures before requesting review
  3. Update peerDependencies to use semver range (^19.0.3)
  4. Add inline comment in package.json explaining the git dependency
  5. Test locally following the testing guide above

If this is temporary (recommended):

// packages/react-on-rails-pro/package.json
"devDependencies": {
  // TODO: Revert to npm version once [email protected] is published
  // Temporary git dependency for testing React 19.2.x compatibility
  "react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"
}

If this must be permanent:

Consider forking and publishing your own scoped version:

npm publish @your-org/[email protected]

📚 References

  • CLAUDE.md Testing Guide: Testing build and package scripts is mandatory
  • PNPM Workspaces: This project uses workspace:* protocol (correctly used for internal deps)
  • Git Dependencies: See CLAUDE.md section on workspace dependencies

✅ Approval Criteria

This PR can be approved when:

  1. ✅ All CI tests pass
  2. ✅ PR description explains the rationale
  3. ✅ peerDependencies are corrected
  4. ✅ Testing evidence is provided
  5. ✅ Either:
    • A plan to revert to npm version is documented, OR
    • Strong justification for permanent git dependency is provided
  6. ✅ CHANGELOG is updated (if appropriate)

Recommendation: Do NOT merge this PR to master with git dependencies unless it's explicitly temporary and well-documented.

@claude
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claude bot commented Dec 10, 2025

Code Review for PR #2197

Summary

This PR updates the react-on-rails-rsc dependency from the published npm version (^19.0.3) to a git dependency pointing to the upgrade-to-react-v19.2.1 branch. The change is applied to:

  • packages/react-on-rails-pro/package.json (devDependencies)
  • react_on_rails_pro/spec/dummy/package.json (dependencies)
  • pnpm-lock.yaml (lockfile updates)

Issues Found

🚨 CRITICAL: Incomplete PR Template

The PR body contains the default template text without being filled out:

  • No summary of what the change does or why
  • No indication if tests were added/updated
  • No documentation updates mentioned
  • No CHANGELOG entry (required per CLAUDE.md)

Action Required: Please fill out the PR template completely, especially:

  1. Explain why you're using a git dependency instead of the published version
  2. Document if this is temporary or permanent
  3. Add a CHANGELOG entry if this is user-facing

⚠️ Major Concerns

1. Git Dependency for External Package

Using git dependencies instead of published versions has significant implications:

Pros:

  • Can test unreleased changes
  • Useful for temporary testing/integration

Cons:

  • Breaks reproducible builds over time (git refs can change)
  • Installation is slower than published packages
  • No semver protection
  • Makes it harder for users to understand version requirements
  • Can cause issues if the branch is rebased or deleted

Questions:

  • Is this temporary while waiting for [email protected] to be published?
  • Or is this a long-term dependency on an unreleased version?
  • What's the plan for migrating back to a published version?

2. Missing Testing Evidence

Per CLAUDE.md's CRITICAL - LOCAL TESTING REQUIREMENTS:

Required but not documented:

  • Did you run pnpm install --frozen-lockfile after removing node_modules?
  • Did you run pnpm run build to verify the build works?
  • Did you run the relevant test suites?
  • Did you verify yalc publish works (if applicable)?

Action Required: Please document what testing was performed, or clearly state if testing wasn't possible in your environment.

3. Inconsistency: devDependencies vs peerDependencies

Looking at packages/react-on-rails-pro/package.json:

  • Line 63: peerDependencies specifies "react-on-rails-rsc": "19.0.3" (exact version)
  • Line 83: devDependencies now uses git branch

This creates an inconsistency:

  • Users will be told they need exactly version 19.0.3
  • But your dev/test environment is using a different version from git

Recommendation: If the git dependency is necessary, consider updating the peerDependency to:

"react-on-rails-rsc": ">= 19.0.3"

📋 Minor Issues

4. Missing Documentation

Per CLAUDE.md, changes should update documentation. Consider documenting:

  • If there are breaking changes in the new react-on-rails-rsc version
  • Migration steps for users
  • Updated installation instructions (if the git dep is intentional for users)

5. CI Status Unknown

The review cannot verify CI status. Please ensure:

  • All CI checks pass before merging
  • No new test failures introduced
  • Bundle size checks pass (if applicable)

Recommendations

If This Is Temporary (Recommended)

  1. Add a TODO comment in package.json explaining the temporary git dependency
  2. Create a follow-up issue to track the migration back to the published version
  3. Document in the PR description when you plan to revert to npm version

If This Is Permanent (Not Recommended)

  1. Consider forking react-on-rails-rsc into this monorepo instead
  2. Or work with the maintainers to get a proper release published
  3. Document why a published version cannot be used

Testing Checklist (Per CLAUDE.md)

Please run and document results for:

# 1. Clean install test
rm -rf node_modules
pnpm install --frozen-lockfile

# 2. Build test
pnpm run build

# 3. Run relevant tests
cd react_on_rails_pro/spec/dummy
pnpm test  # or whatever test command is appropriate

Questions for Author

  1. Why git dependency? What's preventing use of the published ^19.0.3 version?
  2. Timeline? Is this temporary? When will it be reverted?
  3. Testing? What tests did you run to verify this works?
  4. Compatibility? Does the git branch have breaking changes vs 19.0.3?
  5. Peer dependency? Should the peerDependency constraint be updated to match?

Verdict

Conditional Approval - The change appears technically sound for the files modified, but the PR lacks critical information:

✅ The git dependency syntax is correct for pnpm
✅ The lockfile was updated appropriately
✅ No obvious code quality issues

❌ PR template not filled out
❌ No testing documentation
❌ No CHANGELOG entry
❌ No explanation of why git dependency is needed
❌ Inconsistency between devDependencies and peerDependencies

Please address the questions and concerns above before merging.


This review was generated following the project's CLAUDE.md guidelines and best practices for dependency management.

@claude
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claude bot commented Dec 10, 2025

Code Review

Thank you for the PR! I've reviewed the changes and have the following feedback:

What looks good:

  1. Correct Git dependency syntax - The git dependency format git+https://... is appropriate for testing unreleased versions
  2. Consistent updates - Both the Pro package and the dummy app are updated with the same dependency
  3. pnpm-lock.yaml updated - The lockfile changes reflect the git dependency correctly

⚠️ Issues Found:

1. CRITICAL: Peer dependency version mismatch

The Pro package still declares react-on-rails-rsc: "19.0.3" as a peer dependency (line 63 of packages/react-on-rails-pro/package.json), but you're installing a git dependency that appears to require React 19.2.1+.

From the pnpm-lock.yaml diff:

peerDependencies:
  react: ^19.2.1
  react-dom: ^19.2.1

This will cause peer dependency warnings/errors for users. You need to update:

"peerDependencies": {
  "react": ">= 16",
  "react-dom": ">= 16",
  "react-on-rails-rsc": "19.2.1"  // Update this line
}

2. Incomplete PR template

The PR description still contains the template placeholders. Please:

  • Describe what this PR does (upgrading react-on-rails-rsc to v19.2.1)
  • Explain WHY you're using a git dependency instead of the published version
  • Indicate if this is temporary until 19.2.1 is published
  • Complete the checklist items (tests, docs, CHANGELOG)

3. CHANGELOG.md not updated

Per CLAUDE.md, user-visible changes should be added to the CHANGELOG. If this upgrade includes:

  • New features
  • Bug fixes
  • Breaking changes
  • Performance improvements

Then you should update /CHANGELOG_PRO.md (since this affects the Pro package).

If this is purely a dependency update with no user-visible changes, you can skip the CHANGELOG but should note this in the PR description.

4. CI Failures to Address

The PR has several failing checks:

  • check-bundle-size - FAILURE
  • build (22) - FAILURE
  • dummy-app-node-renderer-e2e-tests - FAILURE
  • package-js-tests - FAILURE

These must pass before merging. Check the logs to see if they're related to your changes or pre-existing.

Per CLAUDE.md guidance on avoiding CI failure cycles, you should:

  1. Test locally FIRST before pushing fixes
  2. Run pnpm install --frozen-lockfile (clean install test)
  3. Run pnpm run build
  4. Run relevant test suites locally

📋 Action Items:

  1. Update peer dependency version in packages/react-on-rails-pro/package.json line 63
  2. Fill out PR description explaining the change and reasoning
  3. Investigate and fix CI failures - test locally first
  4. Update CHANGELOG_PRO.md if needed (or explain why not needed in PR description)
  5. Consider adding tests if the react-on-rails-rsc upgrade introduces new features

🤔 Questions:

  1. Is this git dependency temporary until react-on-rails-rsc 19.2.1 is published to npm?
  2. What specific features or fixes from the upgrade-to-react-v19.2.1 branch are you targeting?
  3. Have you tested this locally with the Pro dummy app to ensure RSC features still work?

Overall assessment: The change itself is straightforward, but needs peer dependency fix and CI resolution before merging. The approach of using a git dependency for testing is fine, but it should be documented in the PR description.

Let me know if you need help addressing any of these issues!

@claude
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claude bot commented Dec 10, 2025

Code Review Summary

This PR switches react-on-rails-rsc from npm version ^19.0.3 to a git dependency. While the changes are technically correct, several critical requirements from CLAUDE.md are not met.

Blocking Issues

1. CI Failures - Must Investigate First

Per CLAUDE.md Before You Start: Check CI Status - Before investigating failures, verify they are not pre-existing.

Currently failing:

  • check-bundle-size
  • build (22)
  • dummy-app-node-renderer-e2e-tests
  • package-js-tests

Action Required: Determine if these failures are from your changes or pre-existing. If pre-existing, document this in the PR. If from your changes, fix them locally first using bin/ci-rerun-failures 2197

2. Missing PR Description

The PR contains only template placeholders. Required information:

  • Why switch to git dependency? What bug/feature is needed?
  • Is this temporary (waiting for npm publish)?
  • What local testing was performed?

3. Peer Dependency Mismatch

packages/react-on-rails-pro/package.json:

  • Line 63 peerDependencies: react-on-rails-rsc 19.0.3 (exact version)
  • Line 83 devDependencies: git branch URL

The git dependency expects React ^19.2.1 and react-dom ^19.2.1, but your package tests with React 19.0.1.

Action Required: Either update React to 19.2.1 or explain why 19.0.1 is intentional.

4. Missing Mandatory Local Testing

Per CLAUDE.md Testing Build and Package Scripts, you MUST test clean install, build, and yalc:publish locally.

Action Required: Document that you have run these commands and they passed.

5. Missing CHANGELOG Entry

Per CLAUDE.md, Pro changes need documentation in react_on_rails_pro/CHANGELOG.md. This is user-facing because it changes which version gets installed and upgrades React peer dependencies.

Action Items Before Merge

  1. Check if CI failures are pre-existing
  2. Fill out PR description with rationale and testing details
  3. Fix peer dependency mismatch (update React or explain)
  4. Add CHANGELOG entry in react_on_rails_pro/CHANGELOG.md
  5. Document local testing performed
  6. Add TODO comment and migration plan for reverting to npm version

Status: Not ready to merge until these items are addressed.

Review following CLAUDE.md guidelines for dependency changes and CI failure handling.

@AbanoubGhadban AbanoubGhadban force-pushed the upgrade-to-react-on-rails-rsc-v19.2.1 branch from 52fbcd2 to ab20262 Compare December 10, 2025 16:24
@claude
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claude bot commented Dec 11, 2025

Code Review for PR #2197

Summary

This PR upgrades to React 19.2.1 and react-on-rails-rsc v19.2.1 (from git dependency), removes --ignore-workspace flags from CI workflows, and adds a pnpm-lock.yaml for the dummy app. While the dependency upgrades and workflow changes are appropriate, there are critical bugs and incomplete PR description that must be addressed.


🚨 Critical Issues

1. Missing Return Statement in removeRSCChunkStack (Bug)

File: packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
}

Problem: The function is missing a return statement. This causes it to return undefined instead of the sanitized chunk string.

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
}

Impact: This will cause test failures or incorrect test behavior when removeRSCChunkStack is called, as it won't actually return the processed chunks.


2. Incomplete PR Description

The PR description still contains all template placeholders and no actual information:

  • No summary of what was changed
  • No explanation of why dependencies were upgraded
  • Checklist items not filled out (tests, documentation, changelog)
  • No mention of the test changes or the AsyncQueue modifications

Required: Please fill out the PR description with:

  • Why upgrading to React 19.2.1 and using git dependency for react-on-rails-rsc
  • Why --ignore-workspace was removed from CI workflows
  • What test changes were made and why
  • Whether new tests were added or existing tests updated
  • CHANGELOG updates (if user-visible changes)

⚠️ Significant Issues

3. AsyncQueue Behavior Change Without Documentation

File: packages/react-on-rails-pro/tests/AsyncQueue.ts:28-31

The dequeue() method was changed from dequeuing a single item to joining ALL buffer items and clearing the entire buffer. This is a significant semantic change from queue to batch processor.

Concerns:

  • Changes from dequeuing single item to joining ALL buffer items
  • Clears entire buffer instead of removing one item
  • No tests verify this new behavior
  • No comments explaining why this change was necessary

Question: Was this intentional? If so, why was this behavior change needed for React 19.2.1 compatibility?


4. Test Assertions Commented Out

File: packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx:194

The assertion count expect.assertions(258) was commented out without explanation, and multiple await delay(100) calls were added throughout the test.

Concerns:

  • Assertion count commented out without explanation
  • Multiple delays added throughout test
  • Suggests timing issues or test flakiness

Questions:

  • Why was the assertion count removed?
  • Are the delays masking a real timing issue in the code or just test flakiness?
  • Should delays be configurable or have better documentation?

✅ Good Changes

5. Proper Workspace Configuration

Removing --ignore-workspace and adding explicit --frozen-lockfile is correct - this properly respects the pnpm workspace while ensuring deterministic installs in CI.

6. Better Error Handling

The addition of try-catch with descriptive error message in removeRSCChunkStackInternal is excellent and will make debugging test failures much easier.

7. Empty String Handling

Adding empty string check prevents unnecessary processing.

8. Consistent yalc Usage

Adding --link flag to precompile-check workflow makes it consistent with other workflows.


📋 Other Observations

9. Large pnpm-lock.yaml Addition

A new 7,749-line react_on_rails/spec/dummy/pnpm-lock.yaml file was added.

Questions:

  • Was the dummy app previously using the parent workspace lockfile?
  • Is this change intentional and related to removing --ignore-workspace?
  • Does this affect local development workflow?

10. Git Dependency Instead of Published Version

Using git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1 instead of published version.

Questions:

  • When will v19.2.1 be published to npm?
  • Is this temporary until the upstream package is released?
  • Should there be a TODO or issue tracking the switch back to published version?

🎯 Recommendations

Must Fix Before Merge:

  1. Add return statement in removeRSCChunkStack function (Line 37-39)
  2. Fill out PR description with actual information
  3. Add comments explaining AsyncQueue behavior change
  4. Document why test delays were added

Should Address:

  1. Consider adding tests specifically for the new AsyncQueue batch behavior
  2. Document the git dependency and timeline for switching to published version
  3. Update CHANGELOG if these are user-visible changes (probably not, since these are internal test utilities)

🏁 Conclusion

The dependency upgrades and CI workflow improvements are solid, but the critical bug in removeRSCChunkStack must be fixed before merging. Additionally, the PR description needs to be completed, and the test changes need better documentation.

After fixing the return statement bug and improving documentation, this PR should be good to merge.

@claude
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claude bot commented Dec 11, 2025

Code Review for PR #2197

Thank you for this PR upgrading to React 19.2.1 and using the git dependency for react-on-rails-rsc. Here's my detailed review:


🔴 Critical Issues

1. Broken Function in removeRSCChunkStack.ts (lines 37-39)

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Problem: This function doesn't return anything! The result of .join('\n') is computed but never returned.

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

This is a critical bug that will cause the function to always return undefined, breaking any code that depends on it.

2. Debugging Code Left in Test (htmlStreaming.test.js:200-201)

// Fail to findout the chunks content on CI
expect(JSON.stringify(jsonChunks, undefined, 2)).toContain('nnnnnnnnnnnnnnnnnn');

Problems:

  • This is clearly debugging code that should be removed before merging
  • The expectation is designed to fail (searching for a nonsense string)
  • The comment says "Fail to findout" which suggests this was added to debug CI failures

This will cause the test to fail in CI! Please remove this debugging code.

3. Commented Assertion (concurrentRSCPayloadGeneration.rsc.test.tsx:111)

// expect.assertions(258);

Problem: Commented out assertion count with no explanation.

Questions:

  • Why was this commented out?
  • Does the test still properly validate everything it should?
  • If the test behavior changed, this should be documented

⚠️ Major Issues

4. Suspicious AsyncQueue.dequeue() Logic Change

Before:

const bufferValueIfExist = this.buffer.shift();
if (bufferValueIfExist) {
  resolve(bufferValueIfExist);
}

After:

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;
if (bufferValueIfExist) {
  resolve(bufferValueIfExist as T);
}

Problems:

  • Semantic change: Previously returned ONE item, now returns ALL buffered items joined as a string
  • Type safety broken: this.buffer.join('') returns a string, but it's cast to generic type T which may not be a string
  • Clears entire buffer: Instead of shifting one item, it empties the entire buffer

Questions:

  • Is this intentional? It fundamentally changes the queue behavior from FIFO (one item) to "consume all buffered items"
  • What happens if T is not a string? The .join('') only makes sense for string queues
  • Was this change needed to fix a specific bug with React 19.2.1?

This needs explanation or reversion!

5. Multiple delay(100) Calls Added to Test

The test now has await delay(100) calls sprinkled throughout.

Questions:

  • Why are these delays necessary now?
  • Does React 19.2.1 change timing/async behavior?
  • Are these delays masking a race condition or timing issue?
  • Will this make the test flaky on slower CI runners?

Best practice: If delays are needed, add comments explaining WHY they're necessary for the new React version.


✅ Good Practices

  1. VM Context Extensions: Adding AbortController and performance to the VM context (vm.ts:215, 221) looks reasonable for React 19.2.1 compatibility
  2. Better Error Context: Adding chunk to the error object in htmlStreaming.test.js:57 helps with debugging
  3. Improved Error Handling: The try-catch in removeRSCChunkStack.ts:9-12 with descriptive error message is good

📋 Missing Items from PR Template

Your PR description still has the template text. Please update it with:

  • Summary: Explain WHY you're upgrading to React 19.2.1 and using the git dependency
  • Add/update tests: Do the test changes fully cover the new React version?
  • Update documentation: Does anything need updating for React 19.2.1?
  • Update CHANGELOG: This should be added to CHANGELOG_PRO.md (see CLAUDE.md guidelines)

🔧 Recommendations

  1. Fix the critical bugs (especially removeRSCChunkStack return statement)
  2. Remove the debugging code in htmlStreaming.test.js
  3. Explain or revert the AsyncQueue behavior change - this looks like it could introduce subtle bugs
  4. Document why delays are needed in the test
  5. Test the changes locally per CLAUDE.md requirements - can you confirm the tests pass locally?
  6. Add CHANGELOG_PRO.md entry following the format in CLAUDE.md

❓ Questions for Author

  1. Can you explain what specific issues in React 19.2.1 required the AsyncQueue and delay changes?
  2. Have you tested this locally? What's the status?
  3. Why use a git dependency instead of waiting for a published version of react-on-rails-rsc?
  4. Did you encounter any specific failures that drove these test changes?

CI Status

Your CI is currently running. I recommend:

  1. Fix the issues above
  2. Test locally first: pnpm run build && pnpm test
  3. Pay special attention to the Pro package tests: cd packages/react-on-rails-pro && pnpm test

Thanks for your contribution! Please address these issues and I'm happy to review again.

@claude
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claude bot commented Dec 11, 2025

Code Review for PR #2197

Thank you for working on upgrading the React dependency! I've reviewed the changes and have several critical concerns that need to be addressed before this PR can be merged.


🚨 Critical Issues

1. Incomplete PR Description

The PR description still contains template placeholders. Please:

  • Remove template instructions
  • Explain WHY this upgrade is needed
  • Document any breaking changes or behavioral differences in React 19.2.1
  • Complete the checklist items (tests, documentation, CHANGELOG)

2. Missing CHANGELOG Entry

According to CLAUDE.md, you must update the appropriate changelog(s). Since this affects both open-source and Pro packages, you likely need to update:

  • /CHANGELOG.md (for react-on-rails)
  • /CHANGELOG_PRO.md (for react-on-rails-pro)

Use the /update-changelog command for proper formatting.

3. Debug Code Must Be Removed

packages/react-on-rails-pro-node-renderer/tests/htmlStreaming.test.js:200-201

// Fail to findout the chunks content on CI
expect(JSON.stringify(jsonChunks, undefined, 2)).toContain('nnnnnnnnnnnnnnnnnn');

This is clearly debug code that will always fail. This must be removed before merging.

4. Disabled Test Assertions

packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx:111

// expect.assertions(258);  // ← COMMENTED OUT

Why was this disabled? If the test now produces a different number of assertions with React 19.2.1, the comment should explain why. If this is a temporary workaround, it's a red flag.

5. Broken Function - Returns Undefined

packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
  // ⚠️ MISSING RETURN STATEMENT - This function returns undefined!
};

Critical bug: This function is missing a return statement. This will cause all callers to receive undefined.

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

⚠️ Design & Logic Concerns

6. AsyncQueue Behavior Change - Needs Explanation

packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;

Questions:

  • Previously this used .shift() to dequeue a single item. Now it joins ALL buffered items and clears the buffer.
  • Is this intentional? Why is the behavior changing?
  • Does this indicate that React 19.2.1 streams data differently?
  • The type assertion as T is unsafe - what if T is not a string?

This needs documentation explaining why this change is necessary for React 19.2.1 compatibility.

7. Test Timing Changes - Brittle Tests

packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx

Multiple await delay(100) calls were added throughout the test. This suggests:

  • Race conditions or timing issues with React 19.2.1
  • Tests that depend on timing are inherently flaky
  • May indicate underlying issues with the streaming implementation

Recommendation: Investigate why these delays are needed. Consider using proper synchronization primitives instead of arbitrary delays.

8. Git Dependency in Production Package

packages/react-on-rails-pro/package.json:81

"react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"

Concerns:

  • Git dependencies should be temporary during development
  • Is this waiting for a release of react-on-rails-rsc?
  • Will this be changed to a version number before merging?
  • Users installing from npm will hit this git dependency

Action needed: Document the plan for replacing this with a proper version.


📋 Testing Requirements (CRITICAL)

According to CLAUDE.md:

NEVER claim a test is "fixed" without running it locally first

Before merging, you MUST:

  1. Run the full test suite locally:

    bundle exec rake run_rspec:gem
    bundle exec rake run_rspec:dummy
    pnpm run test
  2. Verify the node renderer tests specifically:

    cd packages/react-on-rails-pro-node-renderer
    pnpm test
  3. Test the React 19.2.1 upgrade in the example apps:

    bundle exec rake shakapacker_examples:gen_all
    bundle exec rake run_rspec:example_basic
  4. Document in the PR what you tested and the results


🔧 Required Changes

Must fix before merge:

  1. ✅ Add return statement in removeRSCChunkStack function
  2. ✅ Remove debug assertion from htmlStreaming.test.js:200-201
  3. ✅ Complete PR description (remove template, explain changes)
  4. ✅ Add CHANGELOG entry
  5. ✅ Explain or fix disabled expect.assertions(258)
  6. ✅ Document why AsyncQueue.dequeue() behavior changed
  7. ✅ Document why timing delays were needed in tests
  8. ✅ Clarify plan for git dependency on react-on-rails-rsc
  9. ✅ Run full test suite locally and document results

📝 Style Notes

Minor formatting issues that should be caught by pre-commit hooks:

  • Ensure all files end with newlines
  • Run bundle exec rubocop to verify Ruby formatting
  • Run pnpm run format to verify JS/TS formatting

Summary

This PR needs significant work before it's ready to merge. The most critical issue is the broken removeRSCChunkStack function that returns undefined. The debug code and disabled assertions also indicate this PR may not have been fully tested.

Please address the issues above and provide clear documentation about what changed and why. Following the testing requirements in CLAUDE.md is mandatory.

@claude
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claude bot commented Dec 11, 2025

Code Review

Thank you for upgrading to react-on-rails-rsc v19.0.3! I've reviewed the changes and have several critical issues that need to be addressed before this PR can be merged.


🚨 Critical Issues

1. Broken Function - Missing Return Statement

Location: packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Problem: This function doesn't return anything! It should be:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Impact: This will cause the function to return undefined instead of the processed chunk, breaking any tests or code that uses it.


2. Debugging Code Left in Test

Location: packages/react-on-rails-pro-node-renderer/tests/htmlStreaming.test.js:208-209

// Fail to findout the chunks content on CI
expect(JSON.stringify(jsonChunks, undefined, 2)).toContain('nnnnnnnnnnnnnnnnnn');

Problem: This is clearly debugging code meant to force a failure and inspect chunk contents on CI.

Action Required: Either:

  • Remove this line entirely if the investigation is complete
  • Replace with a meaningful assertion if you've identified the root cause

This will always fail and should not be merged.


3. Commented Out Assertion

Location: packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx:111

// expect.assertions(258);

Problem: Commented out assertion count suggests the test behavior changed.

Questions:

  • Why was this disabled?
  • Should it be updated to the correct count?
  • Is the test still validating everything it should?

4. Logic Error in AsyncQueue

Location: packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;
if (bufferValueIfExist) {
  resolve(bufferValueIfExist as T);

Problem: This changes the buffer handling from .shift() (taking first item) to .join('') (concatenating all items).

Questions:

  • Is this intentional? The semantic change is significant
  • If chunks are being joined, why was this necessary?
  • Does this relate to the streaming buffer fix below?

5. Incomplete Buffer Handling Logic

Location: packages/react-on-rails-pro-node-renderer/tests/htmlStreaming.test.js:47-56

The buffer handling for partial chunks looks correct in principle, but:

if (!decodedData.endsWith('\n')) {
  buffer = decodedChunksFromData.pop() ?? '';
} else {
  buffer = '';
}

Concern: What happens if decodedChunksFromData is empty? The pop() will return undefined, defaulting to empty string, but the logic seems fragile.

Suggestion: Add a test case specifically for partial chunk handling.


⚠️ Testing Concerns

Missing Test Verification

Per CLAUDE.md requirements:

CRITICAL - LOCAL TESTING REQUIREMENTS:

  1. NEVER claim a test is "fixed" without running it locally first

Questions:

  1. Have you run these tests locally? (pnpm test in the affected packages)
  2. What failures did you observe that led to these changes?
  3. Can you provide test output showing the fixes work?

Added Delays Without Explanation

You've added multiple await delay(100) calls throughout the concurrent test. While this might fix timing issues, it:

  • Slows down test execution
  • May hide underlying race conditions
  • Isn't explained in the PR description

Questions:

  • What specific race condition are these delays addressing?
  • Could the underlying issue be fixed properly instead of adding delays?
  • Are these delays actually necessary or just masking flakiness?

📋 Missing PR Checklist Items

The PR checklist remains unfilled:

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Required Actions:

  1. Fill out the PR description - explain what bugs you fixed and why these changes are needed
  2. Update CHANGELOG - This changes Pro package behavior/tests, so it needs an entry
  3. Document testing - Confirm you've run tests locally and they pass

🔍 Additional Questions

  1. Why the RSC dependency change? The change from ^19.0.3 to a git dependency suggests you need unreleased fixes. What specific issues in the published version are you addressing?

  2. AbortController and performance additions - Why are these needed in the VM context now? Related to React 19.2.1?


✅ What Looks Good

  • The AbortController and performance additions to VM context are good additions for React 19 compatibility
  • The buffer handling concept for partial chunks is the right approach
  • React version bumps to 19.2.1 are appropriate

📝 Required Changes Before Merge

  1. Fix the missing return statement in removeRSCChunkStack
  2. Remove or fix the debugging assertion (nnnnnnnnnnnnnnnnnn)
  3. Fill out PR description with context about what you're fixing
  4. Run tests locally and confirm they pass
  5. Update CHANGELOG_PRO.md with user-facing changes (if any)
  6. ⚠️ Explain the AsyncQueue logic change - is this intentional?
  7. ⚠️ Justify the test delays - are they masking a deeper issue?

According to CLAUDE.md, you should not push without running full tests locally and ensuring they pass. Please address these issues and test thoroughly before pushing again.

@claude
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claude bot commented Dec 11, 2025

Code Review - PR #2197

Thank you for working on this upgrade to React 19.2.1 and the react-on-rails-rsc dependency! I've reviewed the changes and have several critical findings that need to be addressed before merging.


🚨 Critical Issues

1. Bug in removeRSCChunkStack.ts - Missing Return Statement

Location: packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Issue: This function is missing a return statement! The result of the map/join operation is computed but never returned, so this function will always return undefined.

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

This is a critical bug that will break any code relying on this utility function.


2. Type Safety Violation in AsyncQueue.ts

Location: packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;
if (bufferValueIfExist) {
  resolve(bufferValueIfExist as T);
}

Issues:

  • Hard-coded string assumption: The code calls .join('') which only works if T is string. This breaks the generic nature of the AsyncQueue<T> class.
  • Type casting: Using as T to force a string into type T is unsafe and defeats the purpose of TypeScript generics.
  • Breaking change: The original logic was this.buffer.shift() (returning single item), now it's .join('') (concatenating all buffered items). This changes the behavior significantly.

Questions:

  1. Is this queue specifically for strings? If so, consider making it AsyncQueue<string> or creating a separate StringAsyncQueue class.
  2. Why concatenate all buffered items instead of returning the first one? This seems like it could introduce bugs.

Suggested fix (if intended for strings only):

// Option 1: Make it string-specific
class StringAsyncQueue {
  private buffer: string[] = [];
  // ... rest of implementation with join()
}

// Option 2: Keep generic but handle properly
dequeue() {
  return new Promise<T>((resolve, reject) => {
    const bufferValueIfExist = this.buffer.shift();
    if (bufferValueIfExist !== undefined) {
      resolve(bufferValueIfExist);
    } else if (this.isEnded) {
      // ... rest
    }
  });
}

3. Commented-Out Test Assertion

Location: packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx:111

// expect.assertions(258);

Issue: This assertion is commented out, which means:

  • The test can pass even if it doesn't run all expected assertions
  • The comment "Fail to findout the chunks content on CI" in htmlStreaming.test.js:208 suggests flaky tests

Questions:

  1. Why was this commented out?
  2. Are the tests unstable on CI?
  3. What is causing the flakiness?

Recommendation: Either:

  • Fix the root cause and re-enable the assertion, OR
  • Document why it's disabled with a clear TODO comment linking to an issue

⚠️ Issues Requiring Attention

4. Added delay() Calls in Tests

Location: packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx

Multiple 100ms delays were added throughout the test:

const delay = (ms: number) =>
  new Promise<void>((resolve) => {
    setTimeout(() => {
      resolve();
    }, ms);
  });

// ... later in test
await delay(100);

Concerns:

  • Test reliability: Adding delays suggests race conditions or timing issues
  • Slow tests: Each delay adds 100ms, making tests slower (9 delays = 900ms overhead)
  • Flakiness: If 100ms isn't enough on slower CI runners, tests may still fail intermittently

Questions:

  1. What race condition are these delays working around?
  2. Is this related to React 19.2.1 changes in streaming behavior?
  3. Can we use proper synchronization (e.g., waiting for specific events) instead of arbitrary delays?

Recommendation:

  • Investigate the root cause and use event-based synchronization if possible
  • If delays are necessary, document WHY and consider using a configurable timeout

5. Buffer Management in htmlStreaming.test.js

Location: packages/react-on-rails-pro-node-renderer/tests/htmlStreaming.test.js:37-56

New buffering logic was added to handle incomplete chunks:

let buffer = '';
const decodedChunksFromData = (buffer + decodedData)
  .split('\n')
  .map((chunk) => chunk.trim())
  .filter((chunk) => chunk.length > 0);

if (!decodedData.endsWith('\n')) {
  buffer = decodedChunksFromData.pop() ?? '';
} else {
  buffer = '';
}

Observation: This is good defensive coding for handling streaming data that may be split across chunks. However:

  • Consider edge cases: what if decodedChunksFromData is empty after filtering?
  • The .pop() could return undefined, which is handled with ?? ''—good!

Suggestion: Add a test case specifically for mid-chunk splits to ensure this works correctly.


6. VM Context Additions

Location: packages/react-on-rails-pro-node-renderer/src/worker/vm.ts:212-213

Added AbortController and performance to VM context:

extendContext(contextObject, {
  AbortController,
  // ...
  performance,
  // ...
});

Question: Are these required by React 19.2.1 or react-on-rails-rsc v19.0.3?

Recommendation: Add a comment explaining why these globals were added (e.g., "Required by React 19.2.1 for Suspense boundaries" or similar).


📋 Missing PR Requirements

According to the PR template, the following items are unchecked:

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Actions needed:

  1. Tests: The test changes appear to be fixes for existing tests rather than new coverage. Clarify if new tests are needed.
  2. Documentation: If React 19.2.1 introduces breaking changes or new requirements, update relevant docs.
  3. CHANGELOG: This definitely needs a CHANGELOG entry in CHANGELOG_PRO.md:
    #### Pro Package [Unreleased]
    
    ##### Fixed
    - Upgraded to React 19.2.1 and react-on-rails-rsc v19.0.3 to fix streaming and RSC compatibility issues. [PR 2197](https://github.com/shakacode/react_on_rails/pull/2197) by [AbanoubGhadban](https://github.com/AbanoubGhadban)

🔍 Testing Recommendations

Before merging, please verify:

  1. Local test run: Ensure all tests pass locally (not just on CI)

    cd packages/react-on-rails-pro
    pnpm test
    
    cd packages/react-on-rails-pro-node-renderer
    pnpm test
  2. Type checking: Run TypeScript compiler to catch type errors

    pnpm run type-check
  3. Integration tests: Test with a real app using the updated dependencies


📊 Summary

Must fix before merge:

  1. ✅ Add return statement in removeRSCChunkStack
  2. ✅ Fix type safety issue in AsyncQueue.dequeue()
  3. ✅ Address commented-out assertion or document why
  4. ✅ Update CHANGELOG_PRO.md

Should address:

  1. Document why delays were added to tests
  2. Add comment explaining new VM context globals
  3. Complete PR checklist

Positive aspects:

  • Good buffer management in streaming tests
  • Proper handling of incomplete chunks
  • Version pinning for React (avoiding semver ranges)

Let me know if you need clarification on any of these points!

@AbanoubGhadban AbanoubGhadban force-pushed the upgrade-to-react-on-rails-rsc-v19.2.1 branch from 6fbfbb8 to 8759ecd Compare December 11, 2025 12:33
@claude
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claude bot commented Dec 11, 2025

Code Review - PR #2197: Use v19.0.3 of react-on-rails-rsc as git dep

Thank you for working on this update! I've reviewed the changes and have several important findings:


🚨 Critical Issues

1. Missing Return Statement in removeRSCChunkStack (packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39)

The function doesn't return the computed value:

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');  // ❌ No return!
};

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

This will cause all tests using this helper to fail silently since it returns undefined.

2. Type Safety Issue in AsyncQueue.dequeue() (packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32)

The change joins buffer items as strings, which breaks the generic type contract:

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;
if (bufferValueIfExist) {
  resolve(bufferValueIfExist as T);  // ⚠️ Type assertion masks real type error
}

Problems:

  • .join('') assumes T is string, but AsyncQueue is generic
  • The type assertion as T is unsafe and could cause runtime errors
  • Why join all buffered items instead of returning the first one (shift())?

Question: What's the intended behavior here? The original code was this.buffer.shift() which makes more sense for a queue. If you need to concatenate strings, either:

  1. Make AsyncQueue<string> non-generic for string-only use, or
  2. Keep the original shift() behavior

⚠️ High Priority Issues

3. Commented Test Expectation (packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx:111)

// expect.assertions(258);  // ❌ Commented out

Commenting out assertion counts is a red flag. This suggests:

  • Tests may be flaky or not completing as expected
  • The delays added might be masking timing issues rather than fixing root causes

Recommendation: Either fix the underlying timing issue or document why this was necessary.

4. Multiple Delays Added to Tests (concurrentRSCPayloadGeneration.rsc.test.tsx)

Added await delay(100) in 7 places throughout the test. While this might fix flaky tests, it:

  • Increases test runtime significantly (700ms+ of artificial delays)
  • Masks potential race conditions rather than fixing them
  • Suggests the streaming/buffering logic may have changed behavior

Consider: Using proper synchronization primitives instead of arbitrary delays.


🔍 Medium Priority Issues

5. Incomplete PR Description

The PR template sections haven't been filled out:

  • No description of what changed or why
  • No mention of what bugs were fixed
  • Checklist items not addressed (tests, docs, CHANGELOG)

Action Items:

  • Explain why switching from npm package to git dependency
  • Document what React 19.2.1 changes required these code modifications
  • Update CHANGELOG (see CLAUDE.md guidelines)
  • Consider whether documentation needs updates

6. Git Dependency in Production (package.json)

"react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"

Using git dependencies instead of published npm packages:

  • ✅ Acceptable for testing unreleased features
  • ⚠️ Should be temporary - plan to publish and switch back
  • 📋 Document the migration plan

7. Leftover Debug Comment (packages/react-on-rails-pro-node-renderer/tests/htmlStreaming.test.js:208)

// Fail to findout the chunks content on CI

This comment suggests CI-specific issues that may not be fully resolved. Consider:

  • Is there still a CI problem being investigated?
  • Should this be in a TODO or GitHub issue?

✅ Positive Observations

  1. Good additions to VM context: AbortController and performance are essential Web APIs for React 19 features
  2. Buffer handling fix in streaming test: The chunk buffering logic (lines 34-46 in htmlStreaming.test.js) properly handles incomplete chunks
  3. Better error messages: The try-catch in removeRSCChunkStackInternal provides helpful context when parsing fails

📋 Required Actions Before Merge

Must Fix:

  1. ✅ Add missing return statement in removeRSCChunkStack
  2. ✅ Fix type safety issue in AsyncQueue.dequeue() - clarify intended behavior
  3. ✅ Fill out PR description explaining the changes
  4. ✅ Run bundle exec rubocop and fix any violations (see CLAUDE.md)
  5. ✅ Ensure all files end with newlines (CRITICAL per CLAUDE.md)
  6. ✅ Update CHANGELOG.md if this is user-facing

Should Address:

  • Investigate why expect.assertions() was commented out
  • Document why delays were necessary in concurrent tests
  • Consider if streaming behavior changes indicate upstream issues
  • Plan for when to migrate back to npm package from git dependency

Testing Recommendations

Before merging, please verify:

# 1. Run the specific affected tests
pnpm test removeRSCChunkStack
pnpm test AsyncQueue  
pnpm test concurrentRSCPayloadGeneration

# 2. Run full Pro package test suite
cd packages/react-on-rails-pro && pnpm test

# 3. Lint checks (MANDATORY)
bundle exec rubocop
pnpm run lint

# 4. Check formatting
pnpm run format.listDifferent

Let me know if you'd like help addressing any of these issues!

@claude
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claude bot commented Dec 11, 2025

PR Review: React 19.2.1 and react-on-rails-rsc Git Dependency Upgrade

Summary

This PR upgrades React to 19.2.1 and switches react-on-rails-rsc to a git dependency. The changes include test timing adjustments, VM context additions, and fixes for chunk parsing logic.


🔴 CRITICAL ISSUES

1. Missing Return Statement in removeRSCChunkStack

Location: packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Issue: The function is missing a return statement. This will always return undefined, breaking any code that depends on this function.

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

⚠️ SIGNIFICANT CONCERNS

2. Incomplete PR Description

The PR template sections are still present ("Remove this paragraph...", checklist items unchecked). Please complete:

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Per CLAUDE.md, the changelog should be updated for user-visible changes (the React version bump qualifies).

3. Suspicious AsyncQueue Logic Change

Location: packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;

Concerns:

  • Type Safety: Joining an array of generic type T with join('') assumes T is string-like. The cast as T is unsafe if T is not a string.
  • Behavior Change: Previously returned first item; now concatenates all buffered items. This is a breaking change in queue semantics.
  • No Tests: No visible test updates to verify this new behavior is correct.

Questions:

  • Is this intentional? Was there a bug with the previous single-item dequeue?
  • Are all consumers of this queue expecting concatenated strings?
  • Should this be generic-safe or restricted to AsyncQueue<string>?

4. Test Timing Changes Without Explanation

Multiple tests now have added delays (await delay(100)) and increased timeouts:

  • concurrentRSCPayloadGeneration.rsc.test.tsx: 6 new 100ms delays added, assertion count commented out
  • serverRenderRSCReactComponent.rsc.test.tsx: Interval changed from 1ms → 20ms, timeout 10s added
  • htmlStreaming.test.js: Buffer logic added with comment "Fail to findout the chunks content on CI"

Concerns:

  • These suggest timing-sensitive test failures on CI
  • Adding delays masks the real issue rather than fixing root cause
  • The commented assertion (// expect.assertions(258)) suggests tests are non-deterministic

Per CLAUDE.md guidelines:

"CRITICAL - LOCAL TESTING REQUIREMENTS: NEVER claim a test is 'fixed' without running it locally first"

Were these timing issues reproduced and fixed locally, or are these "hopeful" fixes to see if CI passes?


POSITIVE CHANGES

5. VM Context Additions

extendContext(contextObject, {
  AbortController,  // NEW
  performance,      // NEW
  // ... existing items
});

Good: These are likely needed for React 19.2.1 compatibility (especially AbortController for suspense/transitions).

Note: The comment says to update docs/node-renderer/js-configuration.md when adding context. Was this done?

6. Chunk Buffer Handling Improvement

Location: htmlStreaming.test.js:37-56

The added buffer logic for handling incomplete chunks split across network boundaries is a good defensive improvement:

if (!decodedData.endsWith('\n')) {
  buffer = decodedChunksFromData.pop() ?? '';
} else {
  buffer = '';
}

This properly handles the case where chunks don't align with newline delimiters.


🔍 RECOMMENDATIONS

7. Git Dependency Concerns

"react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"

Questions:

  • Is this temporary until an official release?
  • The commit hash in lockfile is f00f4f96578b0de1224284f011e20817c4186261
  • Should this be pinned to a specific commit for reproducibility?

Per CLAUDE.md:

"ALWAYS run bundle exec rubocop and fix ALL violations + ensure trailing newlines"
"Test yalc publish BEFORE pushing"

Was pnpm run yalc:publish tested locally to ensure these dependency changes work?

8. Testing Before Merge

Must do before merge:

# 1. Fix the critical bug in removeRSCChunkStack.ts (add return statement)

# 2. Test locally per CLAUDE.md
rm -rf node_modules
pnpm install --frozen-lockfile
pnpm run build
pnpm run yalc:publish

# 3. Run the affected test suites
pnpm test  # Or specific test files that were modified

# 4. Verify linting passes
bundle exec rubocop
pnpm run format.listDifferent

📋 ACTION ITEMS

Must Fix:

  1. ✅ Add return statement to removeRSCChunkStack function
  2. ✅ Complete PR description (summary, testing notes, changelog update)
  3. ✅ Verify AsyncQueue behavior change is intentional and tested
  4. ✅ Run full test suite locally to ensure timing fixes actually work

Should Address:
5. Document why timing changes were necessary
6. Update docs for new VM context exports (AbortController, performance)
7. Add CHANGELOG entry for React 19.2.1 upgrade
8. Consider whether git dependency should be commit-pinned
9. Explain the commented-out assertion count


Overall Assessment

Code Quality: ⚠️ Needs work (critical bug, unexplained behavior changes)
Testing: ⚠️ Questionable (timing-based fixes, disabled assertions)
Documentation: ❌ Incomplete (template not filled out, changelog missing)
Recommendation: Request changes - fix the return statement bug and address timing test concerns before merge.

The React upgrade and VM context additions look good, but the test changes feel like band-aids rather than proper fixes, and the critical bug in removeRSCChunkStack must be addressed.

@claude
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claude bot commented Dec 11, 2025

Code Review Feedback

Thank you for working on this PR! I've reviewed the changes and have several important observations:

🐛 Critical Bug - Missing Return Statement

packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39

The removeRSCChunkStack function is missing a return statement:

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

This should be:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Without the return, this function always returns undefined, which will break tests and could cause silent failures.


⚠️ Semantic Issues

packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32

The dequeue logic has changed semantics in a problematic way:

const bufferValueIfExist = this.buffer.length > 0 ? this.buffer.join('') : undefined;
this.buffer.length = 0;

Issues:

  1. Type mismatch: join('') returns a string, but T might not be a string type. The cast as T is unsafe.
  2. Behavior change: Previously dequeued one item at a time, now drains the entire buffer and concatenates. This changes the queue contract.
  3. Loss of information: If the buffer contains ['a', 'b', 'c'], this now returns 'abc' instead of 'a' (and keeping ['b', 'c']).

Recommendation: If you need to join buffered values, consider:

  • Adding a type constraint T extends string
  • Documenting this behavior change
  • Or using shift() to maintain one-at-a-time dequeue semantics

🧪 Test Quality Concerns

packages/react-on-rails-pro/tests/concurrentRSCPayloadGeneration.rsc.test.tsx

Several issues with the test modifications:

  1. Commented assertion count:

    // expect.assertions(258);

    Commenting this out makes tests less reliable. If the assertion count changed, update it rather than removing it.

  2. Arbitrary delays:

    await delay(100);

    Adding 100ms delays throughout suggests timing-dependent tests, which are:

    • Flaky (may fail on slower CI runners)
    • Slow (adds ~1+ second to test runtime)
    • Masking race conditions rather than fixing them

    Better approaches:

    • Use event-based synchronization
    • Poll with timeout instead of fixed delays
    • Mock timers with Jest's useFakeTimers()
  3. Debugging comment:

    // Fail to findout the chunks content on CI

    This suggests the test is unreliable on CI. Consider investigating the root cause rather than adding delays.


📦 Dependency Management

Using git dependency for react-on-rails-rsc

"react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"

Concerns:

  • Git dependencies bypass semantic versioning
  • No lockfile integrity (commit hash can change)
  • Harder to track what version is actually being used
  • Can cause issues with package managers

Questions:

  • Is there a plan to publish this as an npm version?
  • Should this be documented in the PR description?
  • Does CHANGELOG need updating?

✅ Good Changes

  1. VM Context additions (packages/react-on-rails-pro-node-renderer/src/worker/vm.ts:215,221):

    • Adding AbortController and performance makes sense for React 19 compatibility
  2. Buffer handling (packages/react-on-rails-pro-node-renderer/tests/htmlStreaming.test.js:37-56):

    • The logic to handle partial chunks that don't end with \n is correct
    • Good defensive programming for streaming data

📋 Checklist Issues

The PR template checklist is incomplete:

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Please complete these items before merging.


🔍 Questions

  1. What specific issue prompted the React 19.2.1 upgrade?
  2. Why were the test delays necessary? What race condition are they working around?
  3. Have you tested this locally with bundle exec rake run_rspec:gem?
  4. Did you run bundle exec rubocop to ensure formatting compliance?

Recommendations

Before merging:

  1. ✅ Fix the missing return statement in removeRSCChunkStack
  2. ⚠️ Review the AsyncQueue behavior change - is this intentional?
  3. 🧪 Investigate test flakiness rather than adding delays
  4. 📝 Complete the PR description and checklist
  5. 📦 Consider publishing a proper npm version of react-on-rails-rsc
  6. 🧹 Run bundle exec rubocop to ensure code style compliance

@claude
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claude bot commented Dec 11, 2025

Code Review Feedback

Thank you for the pull request upgrading to react-on-rails-rsc v19.0.3 (via git dependency) and React 19.2.1. Here's my analysis:


⚠️ Critical Issues

1. Broken function in removeRSCChunkStack.ts (Lines 37-39)

The function doesn't return anything! This is a serious bug:

const removeRSCChunkStack = (chunk: string) => {
  chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

Fix:

const removeRSCChunkStack = (chunk: string) => {
  return chunk.split('\n').map(removeRSCChunkStackInternal).join('\n');
};

This will cause all tests using this utility to fail silently or behave unexpectedly.


🐛 Bugs & Code Quality Issues

2. Type error in AsyncQueue.ts (Line 32)

resolve(bufferValueIfExist as T);

The as T cast is unsafe. You're joining an array of strings but casting it to generic type T. If T isn't string, this will cause runtime errors.

Recommendation: Either:

  • Make the queue explicitly typed as AsyncQueue<string> in tests
  • Or ensure type safety: resolve(bufferValueIfExist as unknown as T) with proper validation

3. Incomplete PR description

The PR template checklist is completely unfilled:

  • Add/update test to cover these changes
  • Update documentation
  • Update CHANGELOG file

Action required: Please complete the PR description explaining:

  • What issue does this fix?
  • Why are we upgrading to this specific version?
  • What bugs or features does this address?
  • Have tests been updated/verified?

4. Title vs Content Mismatch

Title says "v19.0.3" but we're using a git dependency pointing to branch upgrade-to-react-v19.2.1. This is confusing.

Recommendation: Either:

  • Update title to reflect git dependency usage
  • Or explain why we're using git dependency instead of npm release

⚠️ Test Quality Concerns

5. Commented out assertion (concurrentRSCPayloadGeneration.rsc.test.tsx:111)

// expect.assertions(258);

Why was this disabled? This makes the test weaker.

6. Excessive delay() calls added

Multiple await delay(100) calls were added throughout tests. This:

  • Makes tests slower (adds ~1 second per test)
  • Suggests timing-dependent behavior (flaky tests)
  • May hide race conditions instead of fixing them

Questions:

  • Are these delays fixing a real bug in the library or masking test flakiness?
  • Can we use more deterministic synchronization (e.g., promises, events)?

7. Vague comment (Line 208)

// Fail to findout the chunks content on CI

This is cryptic. What does it mean? Is there a known CI issue? Should this be investigated?


🔍 Security & Best Practices

8. Git dependencies in production

"react-on-rails-rsc": "git+https://github.com/shakacode/react_on_rails_rsc#upgrade-to-react-v19.2.1"

Risks:

  • Branch can change without notice (not immutable like npm versions)
  • No semver guarantees
  • Harder to audit/review
  • Breaks --frozen-lockfile reproducibility

Recommendation:

  • Use commit SHA instead: git+https://github.com/shakacode/react_on_rails_rsc#f00f4f96...
  • Or publish to npm registry as beta/rc version
  • Document why git dependency is necessary

9. Missing globals added without explanation (vm.ts:215-216)

AbortController,
performance,

These are good additions, but:

  • Why are they needed now?
  • Are they required by React 19.2.1 or react-on-rails-rsc?
  • Any potential security implications of exposing performance API to VM?

📋 Missing Context

10. No CHANGELOG updates

Per CLAUDE.md guidelines:

Update CHANGELOG.md for user-visible changes only

This appears to be a significant upgrade. Should be documented.

11. Test timing changes unexplained

  • Timeout increased from default to 10000ms (serverRenderRSCReactComponent.rsc.test.tsx:169)
  • setInterval changed from 1ms to 20ms with 200ms initial delay
  • Why these specific values?

✅ Positive Aspects

  1. Proper buffer handling in htmlStreaming.test.js (Lines 37, 48-57) - correctly handles split chunks across network boundaries
  2. Better error handling in removeRSCChunkStack.ts - added try/catch with descriptive error message
  3. VM context completeness - adding AbortController and performance makes VM more Node.js-compatible

🎯 Action Items

Before merging:

  1. FIX IMMEDIATELY: Add return statement in removeRSCChunkStack()
  2. 📝 Complete PR description and checklist
  3. 🧪 Verify all tests pass locally (per CLAUDE.md: "NEVER claim a test is 'fixed' without running it locally first")
  4. 📖 Update CHANGELOG (both open source and/or Pro as appropriate)
  5. 🔒 Replace git branch dependency with commit SHA or explain why it's temporary
  6. 💬 Explain why delays were added to tests and if they indicate a real issue

Nice to have:

  • Document why this specific version is needed
  • Investigate and resolve the "Fail to findout" comment
  • Consider more deterministic test synchronization

Summary

This PR upgrades important dependencies but has critical bugs that will cause test failures. The missing return statement must be fixed before merging. Additionally, the extensive use of timing delays in tests suggests potential race conditions that should be investigated rather than papered over.

Please address the critical issues and complete the PR documentation before merging.

@claude
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claude bot commented Dec 11, 2025

Code Review - PR #2197

Critical Issues Found

1. Missing Return Statement (packages/react-on-rails-pro/tests/utils/removeRSCChunkStack.ts:37-39)
The function removeRSCChunkStack doesn't return anything - it's missing a return statement. This is a bug.

2. Type Safety Issue (packages/react-on-rails-pro/tests/AsyncQueue.ts:29-32)
The dequeue() method joins an array of T[] into a string and uses 'as T' cast, which breaks type safety. The old code used shift() to return one item; new code joins ALL items and clears the buffer. This is a semantic change that needs explanation.

3. Dependency Mismatch (packages/react-on-rails-pro/package.json)
devDependencies uses git dependency for react-on-rails-rsc but peerDependencies still specifies version 19.0.3. When published, users will get 19.0.3 from npm, not the git version you're testing.

Missing Requirements

  • CHANGELOG_PRO.md not updated (required per CLAUDE.md)
  • PR description template not filled out
  • Test changes use hardcoded delays (await delay(100)) which can cause flaky tests

Recommendation

🔴 Request Changes - Fix the missing return statement and type safety issues before merging. Update CHANGELOG_PRO.md and resolve the dependency strategy (either publish react-on-rails-rsc to npm or document the git dependency approach).

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