Module proofguard 

ProofGuard Module - Multi-Source Verification

Triangulates claims across 3+ independent sources to verify factual accuracy.

Core Features

• 3+ Source Requirement: Enforces triangulation protocol (CONS-006)
• Contradiction Detection: Identifies conflicting evidence
• Source Tier Ranking: Weights evidence by source quality
• Confidence Scoring: Produces calibrated verification scores

Source Tiers

Tier	Weight	Examples
Tier 1 (Primary)	1.0	Official docs, peer-reviewed papers, primary sources
Tier 2 (Secondary)	0.7	Reputable news, expert blogs, industry reports
Tier 3 (Independent)	0.4	Community content, forums
Tier 4 (Unverified)	0.2	Social media, unknown sources

Usage

use reasonkit::thinktool::modules::{ProofGuard, ThinkToolContext, ThinkToolModule};

let proofguard = ProofGuard::new();

// Context with claim and sources (JSON format)
let context = ThinkToolContext {
    query: r#"{
        "claim": "Rust is memory-safe without a garbage collector",
        "sources": [
            {"name": "Rust Book", "tier": "Primary", "stance": "Support"},
            {"name": "ACM Paper", "tier": "Primary", "stance": "Support"},
            {"name": "Tech Blog", "tier": "Secondary", "stance": "Support"}
        ]
    }"#.to_string(),
    previous_steps: vec![],
};

let result = proofguard.execute(&context)?;

Structs

ContradictionInfo

Information about detected contradictions

IssueInfo

Information about verification issues

ProofGuard

ProofGuard reasoning module for fact verification.

ProofGuardInput

Input format for ProofGuard verification

ProofGuardOutput

Output from ProofGuard verification

ProofGuardSource

Source input for ProofGuard

SourceSummary

Summary of a source used in verification

VerificationStats

Statistics from verification

Enums

ProofGuardVerdict

Verification verdict