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rt22766rt22766Community·1 Agent Skills Included

claude-skill-model-fingerprint

Verify model authenticity with fingerprint and stress tests

Detects whether a running model is a genuine Claude by checking reasoning effort fingerprints, magic string refusals, and self-reported identity. Runs parallel reasoning, date memory, and knowledge stress tests to expose downgraded, repackaged, or relayed models. Escalates to deep review with math reasoning and quote-output tests, then produces a structured authenticity report.
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npx skills add rt22766/claude-skill-model-fingerprint --all -g -y

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claude-skill-model-fingerprint

Detect counterfeit or wrapped Claude models via multi-signal fingerprinting and heuristic tests.

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Frequently Asked Questions

FAQPage Schema
How to install claude-skill-model-fingerprint?▼

Run `npx skills add rt22766/claude-skill-model-fingerprint --all -g -y` in your terminal to install the skill globally.

How to check if my Claude API is real?▼

Ask your agent to run the model fingerprint detection skill. It tests reasoning effort values, magic string refusals, and self-reported identity to flag fake or relayed models.

What tests does this skill run?▼

It runs parallel core tests including a candy logic puzzle, offline date recall, and anime knowledge questions, plus optional deep tests like a hard math sequence problem and a curly-quote output check.

Are the detection results officially certified?▼

No. The tests are community-sourced heuristics, not an Anthropic certification. You should combine multiple signals instead of trusting any single result.

Does it work with Claude Code?▼

Yes. It is built for Claude Code and runs its core tests through three parallel subagents to finish quickly.

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