Denise Dresser

Slack CEO on Agents, the Multiplayer Runtime & Small Teams

Slack's CEO and GM traces Slack's roots in IRC and channel-based messaging, and argues Slack has become the interface where AI agents run — passing a billion messages a day, roughly 2x Twitter, with an inflection after January's newest Opus launch. She outlines product principles ('be a good host,' 'don't make me think'), positions Slack as the 'multiplayer runtime' at the top of the AI stack, and stresses being 'Switzerland' and open, citing Toby Lütke on the risk of single-player AI. She also describes the shipping culture: agentic coding tools get PRs ~70-80% of the way, teams have shrunk from 40 to 10 without layoffs, and small cross-skilled 'jazz band' teams win because taste and judgment — not code — are the bottleneck.

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