Redrob Skills — AI-native assessments
Skill tests AI can't fake.
Proof you own.
AI-graded skill assessments that reward real judgment, not pasted answers — turned into a verifiable credential you own for life.
Question 3 of 12 · System Design
How would you scale this service to 10× traffic — and defend the trade-offs?
AI assistant · on
AI-native assessments
Bias-audited grading
Open Badges 3.0 credentials
How grading works
Don't fight AI. Score how people use it.
The AI assistant is switched on during every test. We grade how well you use it, then ask you to defend your reasoning.
Tests AI can't fake
Every answer is paired with a defend-your-reasoning step, graded on its own. A pasted answer survives the first step. It cannot survive the second.
Scored fairly
AI grades in seconds. Humans review the close calls, blind to identity. The ranking AI is barred from using names or protected attributes.
Proof you own
Results become Open Badges 3.0 credentials — signed, anchored on-chain, and independently verifiable by anyone, anywhere.
The flow
From test to verifiable proof
Four steps. Every one designed so the score reflects real judgment, not a copy-paste.
Step 01
Take the test
Answer real-world tasks with the AI assistant switched on. No trick questions, no gotchas.
Step 02
Defend your reasoning
For each answer, explain the why. It is graded on its own — and it is where pasted answers fall apart.
Step 03
Get scored
AI grades instantly; humans review the close calls, blind to identity. You see a transparent breakdown.
Step 04
Own the credential
Passing results mint an Open Badges 3.0 credential you can verify and share anywhere, for life.
Who it is for
Built for everyone in the skill verification loop
Candidates, recruiters, institutions, and trust reviewers — one platform, one standard of proof.
Candidates & learners
Take skill tests, build a living skill profile, and get found by recruiters.
Recruiters
Build job-specific skill tests, review real reasoning, and get an AI-ranked shortlist.
Institutions
Author and issue certifications as verifiable Open Badges 3.0 credentials.
Trust reviewers
Re-score disputed results and vet issuers and recruiters for fairness and quality.
Verifiable credentials
Proof that lives outside our walls
Every passing result is an Open Badges 3.0 credential — cryptographically signed, anchored on-chain, and verifiable by anyone without ever calling Redrob.
Signed and tamper-evident
Anchored on-chain
Yours for life
Verified skill — System Design
Score 92 / 100
Level: Advanced
Issued by Redrob · independently verifiable ↗
2-step
Grading per answer
100%
Close calls human-reviewed
3.0
Open Badges standard
Lifetime
Credential validity
FAQ
Questions, answered
Can people just paste AI answers?
They can — and they will pass the first step. But every answer has a separate defend-your-reasoning step that a pasted answer cannot survive.
Is the AI assistant allowed during the test?
Yes. It is switched on for every test. We are measuring how well you use AI, not whether you avoided it.
How is grading kept fair?
AI grades first; humans review the close calls, blind to identity. The ranking model is barred from using names or protected attributes.
What do I actually get?
An Open Badges 3.0 credential — signed, anchored on-chain, and verifiable by anyone, independent of Redrob.
Who is this for?
Candidates proving skills, recruiters hiring on evidence, institutions issuing credentials, and reviewers keeping the system honest.
Get started
Prove it. Own it.
Take a skill test, or build one for your team — the credential is yours for life.
Solutions
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