KeygraphHQ/shannon v1.1.0: Autonomous AI Pentester Built on Claude Agent SDK — 39.3K Stars, Proves Exploits Before Production

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Shannon (39.3K stars, +346 today) is a white-box autonomous pentester that analyzes source code, identifies attack vectors, and executes real exploits against web apps and APIs — reporting only confirmed vulnerabilities with zero false positives. v1.1.0 released April 21, 2026 adds parallel multi-category scanning across five vulnerability classes. Built on Anthropic's Claude Agent SDK as its reasoning engine, it handles authentication including 2FA and browser navigation autonomously.