Remote-control: phone-app approval dismisses popup but never reaches local process

Summary

With claude --remote-control running locally, approving a permission prompt from the Claude phone app dismisses the popup on the phone but the approval never reaches the local Claude process. The terminal stays parked waiting for input. Terminal-side input still works; phone-side input is dropped.

Environment

• Claude Code: 2.1.150
• OS: Ubuntu 24.04.4 LTS (kernel 6.11.0-26-generic)
• Session shell: tmux over SSH
• Launched with: claude --remote-control

Repro

1. Start a local session: claude --remote-control.
2. Open the same session on the Claude mobile app.
3. In the terminal, trigger a tool call that requires permission (e.g. a Bash or Read outside the cwd).
4. Permission prompt appears in both the terminal and the phone app.
5. On the phone, tap Approve.

Expected

Bash/Read executes and returns its result.

Actual

• Phone: popup dismisses, but the command stays shown as pending with the spinner indefinitely.
• Terminal: prompt remains; the local process never receives the approval.
• The only way to unstick: respond in the terminal. If the terminal-side response is "deny" (with a note), the tool result delivered to the model is [Tool result missing due to internal error] rather than a normal deny message.

Direction of the bridge

• Outbound (local to cloud to phone): works. Phone receives prompts and conversation relay.
• Inbound (phone tap to cloud to local): broken for permission decisions specifically. Conversation messages typed on the phone do arrive locally; only permission-decision events fail.

IDs from one repro

• sessionId: f106dbcc-8476-43c1-99aa-a6aad7c6b959
• bridgeSessionId: session_01LR8DqJS9sCRJcdizz5mfU1
• pid: 3607120
• Process had 9+ ESTABLISHED HTTPS connections to claude.ai infrastructure at the time, so the channel itself was up.

Workaround

Approve in the terminal. Approving from the phone is unreliable.