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LLMitM v2 is an autonomous pentesting agent where Opus 4.6 builds the automation that replaces itself. Penetration testing is locked behind years of expertise and expensive tooling. LLMitM v2 breaks that barrier: it utilizes Anthropic's frontier models to capture HTTP traffic from a target web application and reason about where business assumptions and code behavior diverge — the methodology senior pentesters use intuitively — then compiles that reasoning into a deterministic ActionGraph stored in Neo4j. The first engagement requires Opus 4.6's reasoning. Every subsequent engagement against a matching target executes with zero LLM calls. When a stored graph breaks, the system classifies the failure, Opus 4.6 recompiles only the affected portion, and the fix is stored permanently — reused at zero cost on the next run. Opus 4.6 made this possible: a self-repairing agentic system that bridges natural language interpretation and programmatic automation.

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