Mobile PR Review Is Triage
Reviewing agent pull requests on mobile should not mean pretending your phone is a full workstation. The useful mobile job is triage: decide whether the PR is obviously safe, obviously wrong, blocked on context, or worth deeper desktop review.
Claude Code and Codex can produce reviewable branches, but a human still owns the merge decision. Junction helps by bringing the session, output, diffs, approvals, and Git state into one browser surface so you can make quick decisions without opening a terminal.
The trick is knowing which decisions belong on mobile.
This is different from reviewing an in-progress diff. A pull request is a handoff artifact. The agent is saying, in effect, """this branch is ready for someone else to judge.""" Mobile review should focus on whether that handoff is credible.
What Mobile Is Good At
Mobile review is good for:
- Confirming the PR matches the issue.
- Checking changed file count.
- Reading the agent""'s final summary.
- Spotting unrelated files.
- Reviewing small copy or documentation changes.
- Approving a known validation command.
- Sending a follow-up instruction.
- Marking a PR for desktop review.
It is not good for deep architectural review, subtle security changes, broad refactors, or complex UI validation. Those need a larger screen, local context, and often a running app.
The First Screen Checklist
Before reading line-by-line diffs, answer:
- Is this the expected repository?
- Is this the expected branch?
- Does the PR title match the issue or prompt?
- How many files changed?
- Are any high-risk files touched?
- Did tests or typecheck run?
- Did the agent mention uncertainty?
- Is the PR description useful enough for a teammate?
If the answer to any of those is concerning, do not spend time reviewing the rest on mobile. Send a follow-up or defer to desktop.
A Practical Mobile Decision Table
| PR shape | Mobile action |
|---|---|
| One docs file, clear summary, no test impact | Review on mobile |
| Small copy change with obvious diff | Review on mobile |
| Focused test fix with known command run | Triage, maybe approve |
| Broad refactor across packages | Defer |
| Database migration | Defer |
| Auth, billing, or permissions change | Defer |
| Agent touched unrelated files | Request changes |
| Tests not run and should have been | Ask agent to run them |
This keeps mobile review from becoming a bottleneck or a rubber stamp.
Example: Good Mobile Review
An agent opens a PR for a docs update. The diff changes one Markdown file. The issue asked for that exact wording. No code paths changed. You can review the diff, confirm the copy, and move the PR forward from your phone.
That is an ideal mobile review: narrow, legible, and reversible.
Example: Bad Mobile Review
An agent opens a PR that changes API validation, database schema, test fixtures, and pricing copy in one branch. The summary says """cleaned up related issues.""" That is not a phone review. The right mobile action is to request a split, ask what scope expanded, or leave it for desktop.
The problem is not that the agent touched several files. The problem is that the review risk is no longer obvious.
Use The Agent Transcript
The diff is the source of truth, but the transcript explains how the agent got there. From mobile, read the last few messages:
- Did the agent run the expected commands?
- Did it hit errors?
- Did it make assumptions?
- Did it skip a check?
- Did it say the work is partial?
That context helps you decide whether the PR is review-ready or just code-shaped.
For agent PRs, the transcript is also a review of process. If the agent skipped validation because a dependency was missing, the PR may still contain useful code, but the mobile decision should be """needs follow-up,""" not """approve."""
Keep Final Merge Standards
Mobile triage can unblock agents, but it should not weaken merge standards. If your team requires CI, code owner review, or local QA, keep those requirements.
GitHub""'s pull request model is built around review and comparison of changes before merging, and that model still applies when an AI agent created the branch. The agent changes who drafted the code. It does not remove the need to review.
A good mobile outcome is often a comment, not a merge: """scope looks right, run the package test,""" """split the API change into a separate PR,""" or """leaving final review for desktop."""
Tradeoffs
Mobile review saves time when the decision is small. It wastes time when you try to force a complex review through a small screen.
The most useful habit is to make a fast classification:
- safe to review now
- needs agent follow-up
- needs desktop
- should be stopped or split
That classification is often enough to keep work moving without sacrificing quality.
Where Junction Fits
Junction gives you a single place to inspect the run, read output, check diffs, and send follow-up instructions from the same device. That is better than jumping between a mobile terminal, a GitHub notification, and a chat transcript.
For a deeper mobile diff framework, read How to Review AI Agent Diffs from Your Phone. For approval boundaries, read How to Approve AI Agent Actions Safely.