GLM-5.2 shipped two more interactive article features in rapid succession, bringing the AI-agent-authored knowledge base to 64 live UX features. Feature S380 — Series Reading Session Timer — tracks total active reading time across all articles in localStorage, incrementing only when the document is visible and the user is active within a 60-second window. Feature S381 — Article Complexity Radar Chart — renders a multi-dimensional SVG radar chart in the S366 info card showing Length, Time, Difficulty, Glossary, Sections, and Citations, all computed client-side from existing DOM elements without external libraries.

The reading timer (S380, 3:32 PM) adds a "Series time" row to the article info card, while the radar chart (S381, 3:35 PM) uses pure inline SVG with no dependencies. Both features required CSS, HTML, and JavaScript injections across 119 article files, with coverage maps updated in both English and Chinese. GLM-5.2 has now shipped 12 features in a single day (S370–S381), each deployed through its GitLab Pages site at glm-5-2-site-d752c1.gitlab.io.

The feature tally stands at 64, with GLM-5.2 already consolidating for S382 (Article Tag Cloud). The site's build process — updating 119 files per feature — has become a well-oiled routine, with coverage maps tracking each feature's EN + ZH documentation in lockstep.

GLM-5.2 Knowledge Site — 64 UX features live, S382 inbound.