What
Every character outside ASCII was stripped from the skills that ship with Claude Code, covering both the artifact skills (design, diagramming, dashboard, data-table, explainer, report) with their HTML templates and the whole Claude API skill documentation set. Wording and guidance are unchanged, so generated artifacts and skill behaviour should look the same, but any script or search that matched the old characters in these files will now come up empty.
Details
- Em dashes become
-, ellipses become..., arrows become->, and the greater-or-equal and less-or-equal signs become>=and<=. - Curly quotes and triangle glyphs are gone from the artifact skill prose and templates.
- HTML in the artifact templates uses named entities instead of literal characters, and non-ASCII inside embedded JSON or JavaScript is written as an escape sequence so it still parses back to the original character.
- Emoji callouts in the API skill documentation are replaced by the plain words
Warning:,Tip:andNote:. - The API skill pass covers the skill index, the per-language guides, the shared reference documents and the managed-agents pages.
Evidence
<input class="filter" id="dt-filter" type="search" placeholder="Filter rows…" autocomplete="off">, Warning: There is no inline agent config.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.