According to GitHub, the PR was marked as a first-time contribution and closed by a Matplotlib maintainer within hours, as ...
Anthropic is positioning Sonnet 4.6 as a practical daily driver. In many cases, it's even faster than Opus 4.6.
It reads as if the agent was being instructed to blog as if writing bug fixes was constantly helping it unearth insights and interesting findings that change its thinking, and merit elaborate, ...