Master lookaround token scanner
Insane Regex arena: lookarounds, boundaries, and context-sensitive matches
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Missing prerequisites: regex-easy-lookaround-token
A security scanner must find tokens only when they appear in assignment contexts. You are working inside a text-processing challenge room, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply lookarounds, boundaries, and context-sensitive matches in a text-processing challenge room while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates lookarounds, boundaries, and context-sensitive matches
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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Genie Mentor Core
Hint protocol / contextual guardrails active