Time to First Response

Question: How much time passes between when an activity requiring attention is created and the first response?


The first response to an activity can sometimes be the most important response. The first response shows that a community is active and engages in conversations. A long time to respond to an activity can be a sign that a community is not responsive. A short time to respond to an activity can help to engage more members into further discussions and within the community.


Identify cadence of first response across a variety of activities, including PRs, Issues, emails, IRC posts, etc. Time to first response is an important consideration for new and long-time contributors to a project along with overall project health.


Time to first response of an activity = time first response was posted to the activity - time the activity was created.


  • Role of responder, e.g., only count maintainer responses
  • Automated responses, e.g., only count replies from real people by filtering bots and other automated replies
  • Type of Activity, e.g., issues (see metric Issue Response Time), emails, chat, change requests


GrimoireLab Panel: Efficiency Timing Overview

Augur Visualization: Time to First Response Heat Map

Augur Visualization: Mean Response Times

Tools Providing the Metric