2026-agentic-greenfield-vs-brownfield

Add a new slide to the Slidev deck (slides.md or pages/*.md) with consistent frontmatter, layout, and speaker notes. Use when the user asks to add a slide, insert a section, create a new page, or extend the deck. Keeps slides concise, uses v-clicks for long lists, and puts long citations into HTML-comment notes.

Verify the Slidev deck builds and runs cleanly after non-trivial edits to slides.md, pages/, components/, layouts/, or global-top.vue. Use after creating/modifying slides, components, or layouts to catch broken Markdown, invalid Mermaid, missing imports, or frontmatter parsing errors before the user runs the deck.

Author Mermaid diagrams inside Slidev slides without breaking the parser or the print/PDF export. Use whenever a slide needs a flow, hierarchy, sequence, state, or class diagram — Mermaid is preferred over new raster images.