We sequence every repo into a Lossless Semantic Tree — a compiler-accurate model that delivers certainty, not probability. No more reading between the lines, because we’ve resolved them.
Moderne gives humans and agents deterministic tools to drive code change accurately and at scale whether across a single repo or 100,000 of them.
Agentic SDLC built on your code genome
DNA stores an organism’s full instructions in a form a cell reads exactly, one base at a time. A ribosome doesn’t guess; it reads the sequence and acts.
Your code has the same hidden structure. As raw text, it’s scrambled. Sequenced into a Lossless Semantic Tree, it becomes a genome . Every type and relationship resolved, readable by an agent. An agent distills the fix into a deterministic recipe that applies everywhere, the same way every time.
01 · ACCURACY
The recipe runs against the Lossless Semantic Tree, so the change is exact every time — not approximate.
→02 · SCALE
Deterministic change is safe to multiply: the same recipe lands the same way in every repo — no drift, no compounding error.
→03 · VALIDATION
One recipe to review, not a thousand scattered edits to audit. A human stays in control before it ships, not in the cleanup.
→04 · OUT OF THE BOX
Thousands already exist, hardened across hundreds of thousands of real-world repos — and agents add new ones to the library.
Every recipe runs the same way in every repo — and the codebase grows stronger with each one.
None of it works without the data underneath. A recipe can only be that precise because every repo is first sequenced into a Lossless Semantic Tree, a complete, compiler-accurate model of your code. That’s what deterministic change actually runs on.
Go inside the LST →What Moderne has built
Moderne is the deterministic harness that sits between the agent and your code, doing the structural work on the genome the same way every time. The agent plans; Moderne executes. The agent’s job is to know which tool to reach for, not to be the tool.
The strand.
A Lossless Semantic Tree: type-attributed, format-preserving, incrementally compiled. Code, but readable by agents the way DNA is readable by ribosomes. Built once, kept current as the agent edits.
Go inside the LST →The CRISPR edits.
Tens of thousands of deterministic transformations. Each one is a compiled edit, composable, verifiable that finds a precise pattern in the LST, rewrites it, and re-emits source with every comment and blank line preserved.
Browse the recipes →Both, in every agent’s hands.
Prethink and the Moderne MCP give every coding agent the genome and the recipe library, with an always-up-to-date, incrementally compiled view of the codebase. The agent plans; the recipe edits.
Explore agent tools →10,000s of recipes · 40+ domains · 10+ languages · 100% deterministic & reproducible
One Log4Shell recipe, applied to 400 repos: 38,000 call-sites fixed, zero regressions. A composite recipe can chain 70+ primitive edits and run once across the entire fleet — same input, same output, always.
Moderne provides deterministic tools for humans and agents to drive code change accurately and efficiently — on a single repo, or 100,000 of them. The codebase is evolving for the agent era. This is the form it’s evolving into.
