Claude Code Engineer Advocates HTML Over Markdown for AI Outputs
On May 8, 2026, Thariq Shihipar, part of the Claude Code team at Anthropic, released an insightful article advocating for HTML as a more effective output format from Claude than Markdown. His work includes numerous examples and suggestions for prompts, such as instructing Claude to assess a pull request by generating an HTML document featuring inline diff annotations, color-coded severity findings, and various visual enhancements. This perspective has led Simon Willison, who has relied on Markdown since the GPT-4 era for its token efficiency, to rethink his approach. He acknowledges that HTML enables Claude to incorporate SVG diagrams, interactive widgets, and in-page navigation, enhancing user experience. Willison, who previously discussed HTML tools in December 2025, intends to explore rich HTML explanations further.
Key facts
- Thariq Shihipar is on the Claude Code team at Anthropic.
- Shihipar advocates for HTML over Markdown as an output format for Claude.
- The article includes prompt suggestions for using HTML artifacts.
- Simon Willison has defaulted to Markdown since the GPT-4 era.
- Willison reconsidered after reading Shihipar's piece.
- HTML allows SVG diagrams, interactive widgets, and in-page navigation.
- Willison wrote about building HTML tools in December 2025.
- The post was published on 8th May 2026.
Entities
Artists
- Thariq Shihipar
- Simon Willison
Institutions
- Anthropic