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Sprint 20: Legacy code ingestion + modernization workflows Sprint 21: Semantic cross-language transpilation engine Sprint 22: Assembly languages (x86/ARM) + C++ remaining gaps Sprint 23: Architect mode — problem description to tech stack + skeleton Sprint 24: Security annotations, OWASP detection, secure transpilation Sprint 25: Self-hosting, end-to-end scenarios, polish, release prep Cumulative: ~508 steps, ~5000 tests, 19+ languages, 90+ MCP tools, 80+ annotation types across 10 subjects. Post-25 training data harvest builds on real workflow decisions accumulated across all sprints. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>