Install any skill in seconds. Free to start, no credit card required.
Get Started Free →nicepkg/fact-checker
Verifies factual claims in documents using web search and official sources, then proposes corrections with user confirmation.
Passed 16 of 21 test cases with the skill, and 13 of 21 without it.
3 fixed14 passed either way5 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
Fact-check line 45 of `docs/frameworks.md` where React 18 is listed as the default version. React 19 is now the active version on npm. Generate the detailed issue entry for this claim.
| Checked | Without skill | With skill |
|---|---|---|
| Includes line location, current claim, correction, source link, and rationale in the issue entry. | Missed | Passed |
The instructions your model reads when the skill loads.
Verify factual claims in documents and propose corrections backed by authoritative sources.
Trigger when users request:
Copy this checklist to track progress:
Fact-checking Progress:
- [ ] Step 1: Identify factual claims
- [ ] Step 2: Search authoritative sources
- [ ] Step 3: Compare claims against sources
- [ ] Step 4: Generate correction report
- [ ] Step 5: Apply corrections with user approval
Scan the document for verifiable statements:
Target claim types:
Skip subjective content:
test cases passed, vs 13 / 21 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.