quad-fact-check

Original：🇨🇳 Chinese

Translated

Cross fact-checking with 4 models: Claude + Gemini + Codex. Conduct independent checks with Opus itself, Gemini Flash, Gemini Pro, and Codex (gpt-5.3-codex) → extract issues → discuss → output a consensus report.

1installs

Sourcedaiki48/dotfiles

Added on2026-02-21

NPX Install

npx skill4agent add daiki48/dotfiles quad-fact-check

SKILL.md Content (Chinese)

View Translation Comparison →

4-Model Cross Fact-Checking (Claude + Gemini + Codex)

Perform independent fact-checks on the target document using four different AIs: Claude Opus, Gemini Flash, Gemini Pro, and Codex, then discuss the issues and output a consensus report.

Prerequisites

Gemini CLI (
```
gemini
```
) is already installed
Codex CLI (
```
codex
```
) is already installed
Flash is the default model (no need to specify
```
-m
```
)
Specify Pro with
```
-m gemini-3-pro-preview
```
Specify Codex with
```
-m gpt-5.3-codex
```

Steps

Step 1: Identify the Target

Identify the target document from the conversation context
If the target is ambiguous, confirm with Daiki

Step 2: Independent Checks by 4 Models

Opus (Self)

Read through the target document and perform fact-checking
Verify primary sources via WebSearch

Gemini Flash

Execute the following in Bash:

bash

cat <file-path> | gemini -p "Please fact-check the following document. Verify the accuracy of technical facts, consistency of numerical values, internal contradictions, and correctness of code examples. Clearly state the basis for each observation, and classify it as 'Needs Correction / Recommend Improvement / Accurate' in your report."

Gemini Pro

Execute the following in Bash:

bash

cat <file-path> | gemini -m gemini-3-pro-preview -p "Please fact-check the following document. Verify the accuracy of technical facts, consistency of numerical values, internal contradictions, and correctness of code examples. Clearly state the basis for each observation, and classify it as 'Needs Correction / Recommend Improvement / Accurate' in your report."

Codex (gpt-5.3-codex)

Execute the following in Bash:

bash

codex exec -m gpt-5.3-codex --ephemeral -s read-only "Please fact-check the following document. Verify the accuracy of technical facts, consistency of numerical values, internal contradictions, and correctness of code examples. Clearly state the basis for each observation, and classify it as 'Needs Correction / Recommend Improvement / Accurate' in your report.

$(cat <file-path>)"

Step 3: Compare Results & Extract Issues

Cross-reference the results from the 4 models
Unanimous agreement: Adopt directly (Reliability: Highest)
3 agree + 1 disagree: Extract as an issue
2 vs 2: Extract as a critical issue
Detected by only one model: Opus performs additional verification

Step 4: Discuss Issues

For each issue:

Opus collects additional verification information via WebSearch
Re-query each AI with the verification information attached:

bash

echo "<Issue content and additional verification information>" | gemini -p "Please state your opinion on the following issue based on the additional information provided."
echo "<Issue content and additional verification information>" | gemini -m gemini-3-pro-preview -p "Please state your opinion on the following issue based on the additional information provided."
codex exec -m gpt-5.3-codex --ephemeral -s read-only "Please state your opinion on the following issue based on the additional information provided.

<Issue content and additional verification information>"

Make a final judgment by synthesizing all responses

Step 5: Output Consensus Report

markdown

## 4-Model Cross Fact-Check Results

**Target**: <Document Name>
**Checkers**: Claude Opus 4.6 / Gemini Flash / Gemini Pro / Codex (gpt-5.3-codex)

### Needs Correction
| # | Section | Content | Consensus |
|---|-----------|------|------|
| 1 | ... | ... | Opus ✅ Flash ✅ Pro ✅ Codex ✅ |

### Recommend Improvement
| # | Section | Content | Consensus |
|---|-----------|------|------|

### Issues & Discussions
| Issue | Opus | Flash | Pro | Codex | Conclusion |
|------|------|-------|-----|-------|------|

### Detection Capability Comparison
| Detection Item | Opus | Flash | Pro | Codex |
|---------|------|-------|-----|-------|

### Verified (Accurate)
<List of key verified items>

Notes

Opus must verify the results from Gemini and Codex (there is a possibility of false positives)
Resolve issues based on evidence, not majority vote
Re-query each AI individually for each issue
If Codex is unavailable, fall back to 3-model cross fact-checking

quad-fact-check

NPX Install

Tags

SKILL.md Content (Chinese)

4-Model Cross Fact-Checking (Claude + Gemini + Codex)

Prerequisites

Steps

Step 1: Identify the Target

Step 2: Independent Checks by 4 Models

Opus (Self)

Gemini Flash

Gemini Pro

Codex (gpt-5.3-codex)

Step 3: Compare Results & Extract Issues

Step 4: Discuss Issues

Step 5: Output Consensus Report

Notes