Sentry cofounder on Junior: the Slack-run AI intern that's now the company's top committer
zeeg · x · 2026-11-12
Sentry cofounder David Cramer's essay 'I have a Slopware Factory' dissects Junior, the company's internal Slack-enabled AI intern whose name appears on more commits than any other single contributor.
A real example shows the workflow: given the bare instruction 'delete the kanban board experiment', Junior spent 4m53s figuring out what the experiment referred to via Slack search, checking whether the relevant PR was merged, and interpreting 'delete' as removing the feature from main — then opened PR #3200 removing 17 files and -1,236 lines, hand-resolving conflicts from two later PRs, keeping the changelog for history, and passing typecheck, lint and route tests.
His point: a state-of-the-art 'software factory' today isn't one-shot codegen but an agent loop living inside everyday communication tools like Slack, continuously running and self-correcting.
Related event: Sentry CTO Unpacks Internal AI Intern That Tops Commit Charts(3 posts)→
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