Summary
This hands-on tutorial from All About AI walks through building a Reddit sentiment analysis agent using Mistral Vibe CLI and Mistral Medium 3.5, motivated by a practical need: gathering real-time market sentiment from Reddit’s stocks, WallStreetBets, and cryptocurrency subreddits to inform AI-assisted trading decisions.
The build relies on Surf Agent, a browser automation tool that connects directly to a running Chrome instance, giving Mistral 3.5 the ability to navigate to specific tabs, scroll pages, and extract content in real time without any manual intervention. The creator covers installation via curl and npm, initial exploratory runs across three subreddits, and a critical optimization step: packaging the entire workflow into a reusable skill called “Reddit Pulse” that executes as a single invocation in future sessions rather than re-deriving the approach each time.
The video highlights a practical agent design principle — separating the slow exploration phase (where the model writes and tests JavaScript for browser interaction) from fast skill-based execution (where the compiled workflow runs deterministically). Mistral Medium 3.5’s speed is highlighted as a key advantage for lightweight web-browsing tasks that don’t require a larger reasoning model. Developers interested in browser automation, agent skill systems, or real-time data gathering pipelines will find the full build process demonstrated from scratch.
📺 Source: All About AI · Published July 04, 2026
🏷️ Format: Hands On Build
