Check claims against primary sources

---
name: "aboutcodex-primary-source-check"
description: "Verify product and technical claims against current first-party documentation. Use when the user asks to fact-check a draft, refresh claims, or establish source support."
---

# Check claims against primary sources

Verify product and technical claims against current first-party documentation.

## Workflow

1. Extract claims that are specific, update-sensitive, quantitative, or central to the reader decision.
2. Find the closest current primary source: official documentation, release notes, repository, standard, or original paper.
3. Record whether each source supports, narrows, contradicts, or does not address the claim.
4. Revise wording to match the available evidence and attach links near the supported claim.
5. Mark inferences as inferences and preserve unresolved uncertainty instead of filling gaps.

Read `references/NOTES.md` before finalizing the work. Follow project instructions and the user's authorized scope. Use available evidence, label assumptions, and never report a check as passing unless it actually ran.

## Deliverable

A claim-to-source check and corrected copy with visible uncertainty. State material limitations and link to changed files or rendered evidence when available.