Descriptions:
Chris Raroque walks through a complete rebuild of his personal AI agent, scrapping the original iOS app in favor of an iMessage-only interface powered by Anthropic’s Agent SDK. The redesigned system spawns specialized sub-agents in real time, each receiving only the tools and context it needs for a given task—resulting in faster, more focused execution. The iMessage delivery layer relies on an unofficial provider operating a fleet of iPhones and Macs (since no official Apple API exists), while a lightweight Mac Mini running a custom AppleScript bridge handles outbound messaging at a fraction of the cost of services like Link, which charges a minimum of $500 per month.
The memory architecture received a major overhaul: a background Convex process periodically consolidates conversation history into structured memory objects, allowing the agent to recall context across sessions without bloating the active context window. Convex was chosen for its real-time subscriptions and built-in cron jobs, which power both a live debug dashboard showing sub-agent activity and scheduled automations such as morning Slack digests.
Raroque shares candid lessons from building at this scale, including why he abandoned OpenClaw after a security incident where it texted random contacts an authorization code, and why form factor—iMessage versus a dedicated app—turned out to be the single biggest driver of daily adoption. The video is a practical reference for developers evaluating the Anthropic Agent SDK for personal productivity agents.
📺 Source: Chris Raroque · Published April 13, 2026
🏷️ Format: Hands On Build
