APEX WARCODE
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

ChronoLens-SWE is an autonomous visual-temporal bug reproduction and self-healing UI engine built for full-stack developers. Traditional AI coding assistants are blind to temporal runtime behaviour—they can read static source code or single screenshots, but fail when diagnosing transient frontend bugs such as race conditions, layout thrashing, broken animations, z-index collisions, and asynchronous network-to-UI state desynchronization. ChronoLens-SWE solves this by closing the visual-to-code loop: 1) Multimodal Bug Capture: Developers record a short screen clip of a broken UI state while narrating the issue. SAM 3.1 tracks and segments UI components across video frames simultaneously, pinpointing the exact frame and timestamp where spatial layout or visual state breaks. 2) Temporal-to-Code Root Cause Mapping: Muse Wonder correlates the segmented visual anomaly timeline with browser DOM mutations, network HAR logs, and the full repository codebase to isolate the exact offending state hook or CSS/logic bug. 3) Autonomous Reproduction & Self-Healing: A local agent orchestrates Playwright to deterministically reproduce the bug, generates and applies the multi-file patch using Muse Code, re-records the patched UI, and mathematically verifies visual stability via SAM 3.1 mask Intersection-over-Union (IoU) before generating a visual before/after Pull Request summary.