October 29, 2025

@Mentions and Reactions in Comments

Tag teammates with @mentions to notify them instantly, and add emoji reactions to comments for quick acknowledgments.

Comments now support @mentions and emoji reactions, making it easier to collaborate with your team directly in Langfuse. Tag teammates to bring their attention to specific sessions, traces, observations, or prompts, and use reactions to quickly acknowledge insights without adding another comment.

What’s New

@mention autocomplete: Type @ in any comment to see a list of your project members and tag them instantly
Email notifications: Mentioned teammates receive email notifications with context about the comment and object
Emoji reactions: Add quick reactions to comments to acknowledge feedback, agree with findings, or simply show appreciation
Notification preferences: Control when you receive email notifications for mentions on a per-project basis

Get started

Comments Documentation

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