Skeptical AI Review

Don't trust blindly.

5 skeptic personas review any content for logic gaps, missing evidence, blind spots, hidden bias, and real-world feasibility.

Claude Code Skill

Instant skeptical review inside Claude Code, Cowork, and Antigravity

Download Skill View documentation

Chrome Extension

Skeptical review of any website with your own API keys

Get Extension View documentation

MCP Plugin

Structured review tools, confidence history, and export

Download Plugin View documentation

How Checkie Works

Five skeptics. Zero sycophancy.

Checkie runs every AI response through 5 independent skeptic personas, each looking for different types of problems. Logic flaws, unsupported claims, missing perspectives, hidden biases, and impractical advice all get surfaced before you act on AI output.

The Skeptic Panel

Occam

Logic and Reasoning — cuts through fallacies, unsupported claims, circular reasoning, contradictions

Receipts

Evidence and Accuracy — demands proof for unverified facts, cherry-picking, outdated info, misleading stats

Cassandra

Completeness and Blind Spots — sees what others miss: missing perspectives, edge cases, unstated assumptions

The Mirror

Bias and Framing — reflects confirmation bias, sycophancy, framing effects, cultural assumptions

Murphy

Practicality and Real-World Fit — if it can go wrong, it will: feasibility, hidden costs, failure modes

Custom Skeptics

User-defined — create your own skeptic profiles with custom names, focus areas, and review prompts tailored to your domain