v1.4.1

• The extension comes with the Agent Skill for AI assistants: GitHub Copilot in VS Code (1.109 or later) can use it as soon as the extension is installed, and the new command Install Agent Skill for AI... copies it into the skills folder of Claude Code (~/.claude/skills or a workspace folder's .claude/skills) or of another assistant. When an update of the extension has a newer skill, it offers to update the copies it installed. See Writing with AI.
• A step heading numbered by hand (### 3. Fetch user) whose number differs from that of an arrow linked to it (with autonumber) is reported in the Problems panel, with a quick fix that removes the number. Numbering the steps with autonumber instead of in the headings is now recommended in the README and the guide for AI agents (Agent Skill).
• Updated the bundled mermaid (12.3.0), KaTeX (0.18.10, used by mermaid for math), markdown-it (15.0.3) and DOMPurify (3.4.17) for their security fixes: slow rendering of some Markdown (a long multi-line link reference definition, or inline HTML), and bypasses of the HTML sanitizer.