Tag LLM-generated vs. human-authored text using the tilde-fence provenance syntax (tilde "llm" fences, :::llm colon fences, llm/human HTML elements, inline tilde spans). Use this skill whenever the user asks to mark, tag, label, annotate, or attribute AI/LLM/machine-generated text; asks for "provenance" markup; asks Claude to identify which parts of a document it wrote; mentions the llm-provenance spec, llm tags, or tilde fences; or asks Claude to append/insert generated content into a document while keeping authorship distinguishable. Also use when editing a document that already contains llm/human provenance markup, so the markup is preserved and updated correctly.
2026-07-10