{"slug": "show-hn-markdown-okf-schema-studio-for-vs-code", "title": "Show HN: Markdown OKF-Schema Studio for VS Code", "summary": "A developer released Markdown OKF-Schema Studio, a WYSIWYG rich Markdown editor extension for VS Code, via a Show HN post that drew 1 point and 0 comments. The extension offers first-class frontmatter with validation against a JSONSchema for OpenKnowledge Format documents, Sphinx MyST editing, in-cell table editing, and rendering of mermaid, plantuml and vega/vega-lite graphs without external dependencies, while preserving raw text formatting. The author said the tool is meant for planning work with agents and later as a collaborative surface for small teams, arguing HTML artifacts from coding agents are heavy and cannot be displayed directly in GitLab or GitHub files.", "body_md": "A WYSIWYG rich Markdown editor for VS Code.\n\nI use agent a lot for planning, and there is not so much real beautiful and confortable Markdown editor. It gets better but i needed several special things: first-class frontmatter with validation, Sphinx MyST edition, in-cell table edition and do not kill my raw text formatting.\n\nI hope the rendering is extra-clean, allowing to edit a paragraph or a admonition. It supports mermaid, plantuml, vega/vega-lite graph without extern dependencies. It also supports all Sphinx MyST and GitHub Flavored Markdown. I also like the custom \"radio choice\" similar to GFM tick, really useful for decision making directly in Markdown. I use it as an active working document with my agents and later as a rich collaborative surface in small team. HTML artifacts are amazing with coding agents, but heavy, cannot be displayed as it in Gitlab/Github file, and cannot easily keep states such as choices or micro edition.\n\nIt is also used to be a great frontmatter editor OKF Schema that gives a JSONSchema to a frontmatter for OpenKnownledge Format document.\n\nComments URL: [https://news.ycombinator.com/item?id=50382105](https://news.ycombinator.com/item?id=50382105)\n\nPoints: 1\n\n# Comments: 0", "url": "https://wpnews.pro/news/show-hn-markdown-okf-schema-studio-for-vs-code", "canonical_source": "https://github.com/gsemet/markdown-okf-schema-studio", "published_at": "2026-11-05 17:53:46+00:00", "updated_at": "2026-11-05 18:21:31.599609+00:00", "lang": "en", "topics": ["developer-tools", "ai-agents"], "entities": ["Markdown OKF-Schema Studio", "VS Code", "OpenKnowledge Format", "Sphinx MyST", "GitHub Flavored Markdown", "GitLab", "GitHub"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/show-hn-markdown-okf-schema-studio-for-vs-code", "markdown": "https://wpnews.pro/news/show-hn-markdown-okf-schema-studio-for-vs-code.md", "text": "https://wpnews.pro/news/show-hn-markdown-okf-schema-studio-for-vs-code.txt", "jsonld": "https://wpnews.pro/news/show-hn-markdown-okf-schema-studio-for-vs-code.jsonld"}}