[FEATURE] Unified session history across Claude Code, Claude.ai Chat, and Manus

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

I work on a single project (gabella-tor-konfigurator) across Claude Code Web, Claude.ai Chat, and Manus. Each platform has its own isolated session history. After a long working session ending at 6:00 AM, I cannot find my work the next day because it's scattered across three different URLs with no connection between them. There is no project-level timeline, no cross-platform search, and no way to see "here's everything I did on this repo." Git timestamps from Manus don't reflect real calendar dates, making commit history unreliable for tracking when work happened. Artifacts created in Claude.ai Chat are completely disconnected from Claude Code sessions on the same project.

Proposed Solution

A unified project timeline at claude.ai that shows all sessions related to a repository — regardless of which platform they were started on. This should include: (1) chronological list of all sessions by project/repo, (2) search across all sessions by date or keywords, (3) links between related sessions and artifacts, (4) reliable timestamps showing when I actually worked. When I open my project, I want to see ONE history — not three separate ones.

Alternative Solutions

No alternative — a unified timeline is the only real solution.

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_