[FEATURE][Claude Desktop] Organise conversations into user-created folders

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

Currently, conversations in Claude Desktop have no built-in organization mechanism beyond archiving. While Projects (available on Pro/Max) provide high-level workspace organization, they don't address conversation-level grouping within the sidebar.

Projects and conversation folders serve different purposes:

• Projects = organise work across different applications/domains
• Conversation folders = organise related discussions within a project or across your general workflow

As conversation history grows (10+, 50+, 100+ conversations), users across all tiers struggle to find and manage related threads.
This affects:

• Free users: No organization options at all beyond archiving
• Pro users: Projects help, but conversations within/across projects still lack grouping
• Max users: Same issue at scale

Proposed Solution

Add the ability for users to organize conversations into custom folders (similar to how projects are already grouped in expandable sections in the UI).

Example workflow:

• Right-click on a conversation → "Move to folder" or drag-and-drop to a folder
• Create new folders to group related conversations (e.g., "Active Work", "Bugs", "Code Review", "Research")
• Collapse/expand folders in the sidebar, just like project sections

Alternative Solutions

• Archiving unused conversations (reduces visibility but doesn't organise)
• Naming conventions with prefixes (works but doesn't scale well)

Priority

Medium - Would be very helpful

Feature Category

Interactive mode (TUI)

Use Case Example

Example scenario:

1. I use Claude Desktop daily for multiple work streams—some project work, some research, some learning
2. My conversation list has grown to 100+ items with no way to group them; I mostly rely on archiving to keep the list manageable
3. With folder organization, I could create folders for "Active Projects", "Research", "Code Reviews", "Learning" and collapse/expand as needed
4. This would make conversation discoverability much faster and reduce cognitive overhead when switching between different types of work

Additional Context

Why this is feasible

• The UI already supports expandable sections (projects are a working example)
• This leverages existing interaction patterns—users are familiar with folder hierarchies
• No AI/ML overhead required—it's a straightforward organizational tool
• Minimal backend changes needed (just conversation metadata updates)

Benefits

• All tiers: Better conversation discoverability without relying on archiving
• Pro/Max: Complements Projects by organizing at the conversation level
• All users: Clearer mental models for organising work; reduced cognitive load when managing multiple conversation threads