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grounded-citations

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Ground answers and documents in cited, verifiable sources.

skills/research/grounded-citations/SKILL.md

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# Grounded Citations

Every claim taken from an outside source gets an inline numbered citation and a
`Sources:` list, Perplexity-style. A ledger script owns the `url → [n]` mapping
so the numbers and URLs come from retrieval, never from memory — the model only
ever emits small integers it was handed.

For high-stakes work the same ledger doubles as a fact-checking chain: verbatim
quotes are attached to each source (rejected unless they literally appear in
the fetched page text), claims from model knowledge are flagged `[unverified]`,
and `verify --evidence` fails any draft whose cited sources carry no evidence.

This skill covers answers in chat, written documents (markdown, PDF, docx,
slides), and research reports. It does not cover academic BibTeX pipelines —
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