I kept hitting a small-but-annoying problem (and it adds up):

An agent is running (Claude Code or Codex). I’m on my phone. I notice a tiny fix that would make the run cleaner:

• a config value is wrong,
• a file needs to be renamed,
• there’s a stray log line,
• or the agent created a file in the wrong directory.

If I ignore it, I usually pay later (bigger diff, messier commit).

If I SSH in from my phone, I can fix it — but it turns into doing terminal work on mobile.

So I wanted a workflow that lets me make small workspace edits from my phone while the session keeps running on my machine.

TL;DR

• Use Files to browse/search and open a file in edit mode.
• Make the small fix.
• Use Review / tool timeline to sanity-check what changed.
• If you’re going to commit from your phone, enable Git operations; otherwise commit later.

What I mean by “edit files from your phone”

I don’t mean editing a copy of your repo in the cloud.

I mean:

• the repo lives on your laptop/server/dev box
• your phone is where you open real workspace files and make small changes
• Git still runs where the repo lives

What I tried first (and where I bounced off)

• SSH from my phone: it works, but for anything diff-shaped (reviewing, staging, making sure you didn’t touch the wrong file) it’s easy to rush.

• Remote desktop: works, but it’s heavy and fiddly for quick edits.

• Happier: gives me a repo-aware Files surface and an editor in the session UI, so I can make small changes without leaving the session context. Trade-off: it still depends on the machine/daemon being reachable; and for bigger refactors I still prefer a full keyboard.

If you’re new to Happier (what it is, and where to get it)

If you haven’t seen Happier before: it’s an open-source companion app (mobile/web/desktop) for AI coding agents like Claude Code, Codex, and OpenCode.

The session still runs on a machine you trust (laptop/server/dev box). Happier is where you monitor, steer, approve, review, and keep going from your phone.

Get set up:

• How to run Happier from your phone
• GitHub: https://github.com/happier-dev/happier
• Install/download: https://github.com/happier-dev/happier#how-it-works
• Discord (community + support): https://discord.gg/W6Pb8KuHfg

Prerequisites

• The session’s owning machine/daemon is online and reachable.
• You have access to the repo/workspace from the session.

Step-by-step: edit a file from your phone

1) Open Files

In the session UI, open Files.

On a phone-sized layout, this is a full-screen flow rather than a sidebar + details pane.

2) Find the file

Use one of these:

• browse the tree
• use search when you know the name
• use the modified-only filter when you want to focus on what changed

3) Open the file in edit mode

Open the file, then switch into edit mode.

Make the change.

4) Sanity-check what changed

Two ways I sanity-check from a phone:

• open Review to scan the uncommitted diff set
• use the tool timeline to see what edits happened (especially helpful if the agent is still running)

5) Decide whether to commit now or later

• If you’re already in “commit from phone” mode, you can stage + commit.
• If you’re just doing cleanup, it’s fine to leave it uncommitted and do the final commit later from a laptop.

Attachments vs workspace files (easy to mix up)

If your goal is “this should land in git,” you want to edit workspace files.

Attachments are great for sharing a log or an artifact with the model, but they’re not the same as editing the repo.

Troubleshooting

Symptom: Files is empty or won’t load

Likely cause:

• the owning machine/daemon isn’t reachable

Fix:

• restore connectivity; Files depends on machine workspace APIs

Symptom: I can browse files, but edits don’t persist

Likely cause:

• you’re editing an attachment or a preview surface, not the real workspace file

Fix:

• open the file from Files and ensure you’re in edit mode

Related guides

• How to review diffs from your phone
• How to commit code from your phone
• How to monitor Claude Code from your phone