[FEATURE] Let --resume continue a Claude app conversation in Claude Code

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Conversations in the Claude app (mobile/web) and Claude Code sessions are stored separately. claude --resume only sees sessions in ~/.claude/projects for the current directory, so there is no way to carry a conversation started in the Claude app into Claude Code.

This is a common pattern: think through a problem on a phone, then move to a machine to actually do the work. Today the only workaround is to ask Claude to write a summary block and paste it in manually as the first message, which loses detail and takes an extra round trip.

Proposed Solution

• Let --resume accept a Claude app conversation, e.g. claude --resume --from-app opening a picker of recent claude.ai conversations, or claude --resume <conversation-url-or-id>
• Import the conversation history as context for a new local session

Alternative Solutions

• A "Continue in Claude Code" action on a conversation in the Claude app that generates a resumable session ID
• An export/import command pair

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

I think through a design problem in the Claude app on my phone (planning, tradeoffs, a school/project decision), then sit down at my machine to do the actual work. Right now that context does not follow me: I have to ask Claude to emit a summary block and paste it into a fresh Claude Code session as message one, losing the detail of the original conversation.

Additional Context

Related, but distinct:

• #35555 (resume in the browser interface)
• #50067 (resume in the desktop app)

Both ask for resume parity across Claude Code surfaces. This is a different ask: crossing from the Claude app into Claude Code.