River is Shopify's internal AI agent, described by Tobi Lütke as living in company Slack channels rather than private direct messages. Employees mention River in public channels; River can read code, run tests, write code, open pull requests, query the data warehouse, inspect production traces, and use team-specific zones, skills, instructions, and memory.source: tobi-lutke-learning-shop-floor-river-2026.md
Lütke reports that in a 30-day period, 5,938 Shopify employees worked with River across 4,450 Slack channels, and that River opened 1,870 pull requests in one week, authoring about one in eight merged PRs in Shopify's main monorepo. These operational metrics come from Lütke's article and should be treated as single-source claims until corroborated.source: tobi-lutke-learning-shop-floor-river-2026.md
The distinctive design constraint is openness: River declines direct messages and asks users to work in public channels. That turns agent use into public-agent-collaboration — searchable, teachable work where others can watch, comment, reuse patterns, and improve River's shared instructions instead of keeping agent expertise trapped in private windows.source: tobi-lutke-learning-shop-floor-river-2026.md
Related pages: tobi-lutke, public-agent-collaboration, personal-agents, skillification, organizational-moats.