Similar Chats Panel

[monapdx]

Add "Similar Chats" panel for exploring related conversations

Goal

Help users discover and group related chats by showing a list of chats that are textually similar to the currently selected chat.

This is complementary to category suggestions and useful even without categories.

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UI Behavior

When a user selects or opens a chat, display a panel:

Similar Chats

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How It Works

• Take the selected chat
• Compare it against other chats in the dataset
• Return the top N most similar matches

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Scope (MVP)

• Compare against:
  • Chat title
  • User prompts (default)
• Exclude:
  • The current chat
  • Very low similarity results (threshold-based)

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Interaction Ideas (Optional, later)

• Click a similar chat to open it
• “Assign same category” shortcut
• Multi-select for batch categorization

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Implementation Notes

• Use the same similarity method as category scoring (TF-IDF + cosine)
• No caching required for MVP (can add later if needed)
• Limit comparisons to:
  • Recent chats
  • Or a capped dataset (e.g. last 500 chats) for performance

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Acceptance Criteria

• Displays top 3–5 similar chats
• Updates when a different chat is selected
• Does not noticeably slow down UI
• Handles edge cases:
  • Very small datasets
  • Highly unique chats (shows fewer results)

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Future Enhancements (NOT in this issue)

• Add caching layer for similarity results
• Cluster similar chats automatically
• Visual grouping (e.g. “conversation clusters” view)
• Cross-category similarity insights

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Why This Matters

• Helps users rediscover past work
• Makes large chat histories more navigable
• Provides an intuitive bridge into categorization workflows