Slack launches 'Slack Code' channels to move AI coding from silos to multiplayer

Slack has introduced "Slack Code," a specialized channel type designed to transition AI-driven software development from isolated environments into a collaborative, "multiplayer" experience. The feature allows AI coding agents to automatically create dedicated spaces for complex tasks that exceed the capacity of a standard message thread.

These channels serve as temporary hubs where agents and supervising developers can manage project plans, review code diffs, and view live previews. Once the assigned task is completed, the channels are automatically archived to prevent workspace clutter. According to Slack, the feature is available across all plans, including free workspaces, at no additional cost. To enable this functionality, Slack provided a dedicated API for partner agents to create and manage these environments.

Shifting the AI Workflow

Historically, most AI coding agents have operated as "single-player" tools, confined to a developer's IDE or terminal. While efficient for individual output, this siloed approach creates friction when multiple team members need to audit, review, or collaborate on AI-generated changes.

Katie Steigman, VP of Product at Slack, noted that there is a necessary shift from siloed AI work toward a multiplayer environment. Steigman emphasized the importance of the user experience in this transition, stating, "I think it’s easy to underestimate UX right now because everybody’s into the models."

Industry Implications

By establishing a specialized, ephemeral layer for agent activity, Slack is positioning itself as the central collaboration and review hub for AI-generated code. This strategy allows Slack to remain agnostic regarding the underlying model, acting as the interface regardless of which AI provider is performing the work.

This move places Slack in direct competition with other integrated AI environments, such as GitHub's Agent HQ and Block's Buzz. By integrating the review process directly into the company's primary communication tool, Slack aims to reduce the context-switching typically required between a chat app and a code repository.

Integration and Access

At launch, Slack Code is supported by a group of founding partners, including Anthropic's Claude, Cognition's Devin, GitHub Copilot, and Vercel. OpenAI's ChatGPT is also developing an integration for the platform.

Security and privacy are handled through existing Slack frameworks; code channels inherit the visibility and permissions—whether public or private—of the original conversation where the agent was first mentioned. While agents currently initiate these channels, the platform continues to evolve its API to further refine how these autonomous agents interact with human supervisors.