GSOC 2026 - Proposal: Implementing DAP-based Root Cause Analysis for Idea #7

[Jsofeng]

Hi @keith-schaab and team,

I’m highly interested in Idea #7. After reviewing the packages/core logic, I see a massive opportunity to move beyond "static" analysis. My goal is to implement a DAP Client within the core that allows the agent to attach to Node/Python runtimes.

My Proposed Approach:

Protocol: Implement a lightweight DAP client to handle stackTrace, scopes, and variables requests.

Automation: When a command fails, the agent will automatically trigger a stackTrace request to identify the failing frame and pull variable states before suggesting a fix.

UI: An interactive "Investigation Mode" using a split-pane view or focused terminal output.

I've already signed the Google CLA and am looking into packages/vscode-ide-companion to see how we can share debugging logic. Looking forward to feedback!