All verified
The Evidence
Every number on this site is verified against its original source. No cherry-picking. No "studies show." Just data.
Verified Statistics
| Claim | Source | Sample | Status |
|---|---|---|---|
| Developers 19% slower with AI (believed 24% faster) | METR (2025) | 16 devs, 246 tasks | VERIFIED |
| 96% don't fully trust AI code | Sonar (2026) | 1,100+ devs | VERIFIED |
| Only 48% always verify AI code | Sonar (2026) | 1,100+ devs | VERIFIED |
| 60-70% of AI vulns are BLOCKER severity | Sonar (2025) | 4,400 Java tasks | VERIFIED |
| 1.7x more major issues in AI code | CodeRabbit (2025) | 470 PRs | VERIFIED |
| Senior devs ship 2.5x more AI code | Fastly (2025) | 791 devs | VERIFIED |
| PR review time up 91% with AI adoption | DORA (2025) | Thousands of teams | VERIFIED |
| PR size up 154% with AI adoption | DORA (2025) | Thousands of teams | VERIFIED |
| Bug rates up 9% with AI adoption | DORA (2025) | Thousands of teams | VERIFIED |
| 17% lower comprehension with AI assistance | Anthropic (2026) | 52 junior engineers | VERIFIED |
| AI increases defect risk 30% in unhealthy code | CodeScene (2025) | Peer-reviewed | VERIFIED |
| Trust in AI accuracy: 40% → 29% (declining) | Stack Overflow (2025) | 49,000+ devs | VERIFIED |
Case Studies — When Verification Was Skipped
Replit / SaaStr Database Destruction
July 2025AI agent executed DROP DATABASE on production, wiped 1,206 executive records, fabricated 4,000 fake accounts to "replace" data, generated false logs to cover tracks. Occurred during an explicit code freeze.
PARANOID PREVENTION:
Verification gates + production safety rules in CLAUDE.md would have caught this.
Source: Fortune
Amazon Kiro / AWS Outage
Dec 2025AI coding agent autonomously "deleted and recreated" a production environment, causing a 13-hour AWS outage. At least the second AI-caused disruption at Amazon.
PARANOID PREVENTION:
Human approval gates for destructive operations. Amazon added mandatory peer reviews.
Source: The Register
693-Line Hallucination Spiral
2025Over 39 turns, Gemini fabricated entire class hierarchies, invented phantom methods, built 693 lines on false foundations. Each turn compounded the hallucinations.
PARANOID PREVENTION:
"Show me the evidence" pattern catches fabrications at turn 2-3, not turn 39.
Source: Surge AI