---
id: "concept-interface-layer"
type: "concept"
source_timestamps: ["§ Building the Platform: A Team of Digital Teams", "¶16"]
tags: ["architecture", "user-experience", "human-in-the-loop"]
related: ["framework-platform-layers", "concept-orchestration-layer", "action-embed-interfaces"]
definition: "The interaction layer embedded in familiar tools (Slack, Teams) where marketers set intent, review outputs, and make decisions prompted by the system."
sources: ["agentic"]
sourceVaultSlug: "hbr-seg-agentic"
originDay: 6
articleStem: "hbr-tier1-02-agentic-marketing-org"
sourceUrl: "https://hbr.org/2026/05/redesigning-your-marketing-organization-for-the-agentic-age"
sourceTitle: "Redesigning Your Marketing Organization for the Agentic Age"
---
# Interface Layer

The **interface layer** is the surface through which human marketers interact with the agentic system (layer 4 of [[framework-platform-layers]]). Rather than requiring marketers to log into a complex new proprietary platform or undergo extensive retraining, this layer is embedded directly into **familiar, existing communication tools such as Slack, WhatsApp, or Microsoft Teams**.

Through this single surface, marketers can set strategic intent, review agent outputs, and make critical decisions when prompted by the [[concept-orchestration-layer]]. **Permissions are strictly aligned to the user's role.** This design lets marketers operate *"in the flow of their existing work,"* drastically reducing friction and platform fatigue while maintaining human governance over the autonomous system.

This layer is operationalized by the action item [[action-embed-interfaces]].

**Definition:** The interaction layer embedded in familiar tools (Slack, Teams) where marketers set intent, review outputs, and make decisions prompted by the system.