When the article locale is en-US, Chinese prompt templates could leak
Chinese wording into generated titles, outlines, and article bodies.
Add high-priority language-consistency guards so the model treats the
Chinese template text as internal instructions and emits English only.
- Append per-artifact locale guards (analyze/title/outline) in template
assist prompts and an article-body guard in the generation prompt,
only when locale is en-US
- Reinforce locale consistency in the title/outline runtime prompts and
drop retained images from the rewrite prompt
- Cover the new guards with unit tests
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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