[FEATURE] /export command should generate unique filenames to prevent overwrites

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

Description:
The /export command currently generates filenames that may overwrite previous exports from the
same session or conversation topic.

Current Behavior:

• /export creates files like 2025-12-03-continue-with-plan.txt
• Subsequent exports in the same session may reuse similar filenames
• Risk of accidentally overwriting previous exports

Proposed Solution

Desired Behavior:

• Each /export should generate a unique filename
• Options could include:
• Append timestamp: 2025-12-03T00-45-30-continue-with-plan.txt
• Append sequence number that auto-increments: ...-plan-001.txt, ...-plan-002.txt
• Prompt user for filename confirmation before saving
• Check for existing file and auto-increment if collision detected

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

Use Case:
During long sessions with multiple export points, I want to preserve all exports without manually
managing filenames or risking data loss from overwrites.

Additional Context

Environment:

• Claude Code CLI version: [2.0.56]
• Platform: Linux