Automatically sends a primer message when opening a new Claude.ai chat.
Users
8
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#212K
#178K among extensions
Version
1.3.1
updated 9 Mar 2026
Users
monthly, 8 months
Latest, 20 Oct 2026:8 usersMove the mouse over the chart for any month
Ratings count
monthly, 8 months
Latest, 20 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Claude Auto-Primer
Claude Auto-Primer automatically sends a configurable primer message whenever you open a new chat on Claude.ai. Set your
instructions once and every conversation starts with the context you need.
Features:
Automatically sends your primer when a new chat opens
Auto-rename chats with date, time, and profile name so you can find anything instantly
Create multiple profiles for different workflows
Silent primer mode - sends your instructions without cluttering the chat
Inject current date and time into your primer automatically
Enable or disable with a single click
Works seamlessly with Claude.ai's interface
Free and open source (MIT). No data collection, no tracking - your primers stay in your browser.