[Bug] Anthropic API Error: Output blocked by content filtering policy

Bug Description
I ask claude to add some dummy text in a html template file, to debug a potential CSS issue.

❯ I don't understand how come this issue is only visible in documentation page.
   fill the doc page with some 'lorem ipsum' to check your hypothesis.

  Read 1 file (ctrl+o to expand)

⏺ Bash(which zola && zola --version)
  ⎿  /opt/homebrew/bin/zola
     zola 0.22.1

⏺ I'll add lorem ipsum to the documentation page and rebuild so you can compare.
  ⎿  API Error: Output blocked by content filtering policy

✻ Worked for 26s

but nothing happened...?

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.142
• Feedback ID: 50043c69-f174-4e64-9e0d-4b474d337649

Errors

[{"error":"Error: {\"type\":\"error\",\"error\":{\"details\":null,\"type\":\"invalid_request_error\",\"message\":\"Output blocked by content filtering policy\"},\"request_id\":\"req_011CbWYp22Y864uHoBmCJ8hy\"}\n    at T (/$bunfs/root/src/entrypoints/cli.js:14:2015)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-29T08:32:11.879Z"},{"error":"Error: {\"type\":\"error\",\"error\":{\"details\":null,\"type\":\"invalid_request_error\",\"message\":\"Output blocked by content filtering policy\"},\"request_id\":\"req_011CbWYrFHoi9CD6Y2Pk6SFk\"}\n    at T (/$bunfs/root/src/entrypoints/cli.js:14:2015)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-29T08:32:43.184Z"}]