Moderne

About

Moderne's substrate is the OpenRewrite Lossless Semantic Tree: each repository is sequenced into a compiler-accurate, type-attributed, format-preserving model, and deterministic recipes rewrite precisely the matched constructs without disturbing surrounding code — the mechanism behind a single Log4Shell recipe fixing 38,000 call-sites across 400 repositories with no regressions. The company's agent-era positioning splits the labor explicitly: an LLM plans, recipes execute, making Moderne 'the deterministic harness between the agent and your code.' Its first-party agent Moddy takes natural-language requests such as upgrading to Spring Boot 3.5, finds the appropriate recipes, and executes them across repository fleets; Prethink supplies pre-resolved context (endpoints, dependencies, test coverage) so external coding agents stop inferring architecture from raw source. Enterprises running from one to 100,000+ repositories deploy it as SaaS, a managed service, or air-gapped DX for vulnerability remediation and framework migrations; pricing is enterprise sales-driven rather than published.