Simon Willison hosts a fireside chat with Anthropic’s Claude Code team, revealing key insights into their development workflow, including an 80% reduction in system prompt size and a strategic shift away from example-heavy prompts. The discussion covers Claude Tag’s Slack integration, automated code review practices, and Anthropic’s internal “dogfooding” methodology. Attendees also explore coding agent security, evaluation frameworks, and the expanding multimedia capabilities of models like Fable.
Background
Anthropic continues to refine its AI coding assistant ecosystem, using Claude Code as both a commercial product and an internal development engine. This conversation provides a rare look at how the company balances rapid feature iteration with rigorous security and performance evaluation.
- Source
- Simon Willison
- Published
- Jul 21, 2026 at 08:54 PM
- Score
- 7.0 / 10