# Fact Checking

> Fact-check verdict vocabulary with evidence — supported, refuted, unverifiable, misleading. Use as the final gate before a claim becomes a stated fact.

- Skill: `samraddhashrivastavatech/fact-checking` (Agent Skill)
- Install (CLI): `npx skillmds@latest add samraddhashrivastavatech/fact-checking`
- Raw SKILL.md: https://api.skillmd.com/api/skills/samraddhashrivastavatech/fact-checking/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Research & Search
- Author: SAMRADDHASHRIVASTAVATECH (https://skillmd.com/u/samraddhashrivastavatech)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/samraddhashrivastavatech/fact-checking

---


# Fact checking

Run a claim through verification and emit a verdict using a disciplined
vocabulary, always with the evidence.

## When to use

- The user (or a downstream step) expects a definite verdict on a statement.
- Preparing material where claims must be vetted.
- Sanity-checking research conclusions before delivery.

## Tools used

- `fact_check` — from a `statement`, optional `phrases` to guide verification.

## Verdict vocabulary

- **supported** — independently corroborated.
- **refuted** — contradicted by evidence.
- **unverifiable** — insufficient/indistinct evidence (do not assert).
- **misleading** — true but framed to deceive.

## Workflow

1. Restate the statement as a claim; `fact_check`.
2. Map raw output to the verdict vocabulary above.
3. Attach the evidence trail (which sources support / contradict).
4. Never ship an assertion labeled "unverifiable" or with weak confidence.

## Input schema

```json
{ "statement": "str", "phrases": "list[str]" }
```

## Output schema

```json
{ "verdict": "string", "confidence": "number", "evidence": "list[{source,url,quote}]" }
```

## Security

Averaging sources is not verification; independence and freshness are. When in
doubt, downgrade the verdict rather than inflate it.

## Related skills

`claim-verification`, `evidence-extraction`, `contradiction-search`,
`deep-research`