Announcing Slack Code
By Steven Van ·
An agent can answer a question in a thread, but some tasks become bigger than a single question.
Slack announced Announcing Slack Code on August 20, 2026.
What changed
An agent can answer a question in a thread, but some tasks become bigger than a single question. A coding agent may need to implement a change, share a prototype, and iterate on it. A research agent may need to gather information and work through decisions with the people involved. This kind of work needs more than a single response. Slack Code is how agents and people work together to build with AI in Slack, creating dedicated channels for more involved work. A channel is created from an existing conversation, context is carried forward, and agents and collaborators have a shared, visible place to work. Within a session, agents can publish artifacts for people to oversee and iterate on: Code diffs, so people can review what changed Block Kit views, for structured interactive experiences HTML previews, for prototypes and generated interfaces Canvases, for longer-form content and collaboration The work becomes multiplayer: teammates can join channels, review work, add context, and help make decisions, all while collaborating in the same session and with the same artifacts. Your agent manages the lifecycle, creating a channel when a task warrants one, sharing updates as the work prog