Community

The proof wall.

Every entry here is a verified skill proof — scored on a timed challenge against a public rubric, with the actual work attached. Not endorsements. Not badges. Evidence.

People with profiles

Challenge attempts

Verified proofs

Claims awaiting proof

Recently proven

The CV title is shown next to each proof on purpose. The gap between the two columns is the reason this product exists.

Indu KandulaStakeholder Communication · L4 verified

Indu KandulaProduct Discovery · L2 verified

Indu KandulaPrioritisation & Trade-offs · L2 verified

Tomás FerreiraCV says: Freelance Developerdemo profileCode Review & Judgment · L3 verified

Tomás FerreiraCV says: Freelance Developerdemo profileAPI & Systems Integration · L4 verified

Tomás FerreiraCV says: Freelance Developerdemo profileDebugging & Diagnosis · L3 verified

Priya NairCV says: Financial Analystdemo profileExperiment Design · L3 verified

Priya NairCV says: Financial Analystdemo profileData Analysis · L4 verified

Most-verified skills right now

Debugging & Diagnosis

3 verified proofs

AI Evaluation

3 verified proofs

Stakeholder Communication

2 verified proofs

Prioritisation & Trade-offs

2 verified proofs

Product Discovery

2 verified proofs

Retrieval & RAG Systems

2 verified proofs

Where would you rank?

Every challenge shows its rubric before you start, and your result tells you where you placed among everyone who has attempted it.

Ship an AI Agent That Won't Embarrass You · 90 min The RAG System That Confidently Lies · 75 min Three Stakeholders, One Quarter, Nothing Fits · 60 min Turn 'Make Search Better' Into Something Buildable · 60 min The Funnel Is Leaking. Find Out Where. · 75 min The Error Message Is Lying To You · 75 min

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