EnterprisePublic Beta

necroma

The Migration Layer.

necroma is an autonomous legacy migration tool that records live application behavior, generates Playwright tests, then forces AI to rewrite until every test passes. See your first modernized, production-ready feature in days, not quarters.

The Infrastructure Gap

Everyone else is fighting the wrong war.

syntax-migration.log

// AST node transform
function migrate(node) {
  if (node.type === 'jQuery') {
    return rewriteToReact(node.source)
  }
}

Blind — source code doesn't capture intent.

behavior-capture.session

▶ REC 00:00:12
[click]  #submit-btn → POST /api/order
[input]  #email-field → "user@test.com"
[nav]    /checkout → /confirmation
[assert] .success-msg visible

We watch the screen. We preserve behavior, not syntax.

How It Works

Test-driven reconstruction.

Record real user behavior, generate tests from it, then force the AI to write modern code until every test passes.

01 · RECORD

Record Real Behavior

Capture DOM events, video sessions, and user flows from the live legacy app. No source code reading — just watching what actually happens.

Playwright + DOM Events

02 · GENERATE

Generate Test Suite

Playwright test suite auto-created from observed behavior. Every user flow becomes an executable assertion.

// auto-generated

test('checkout flow', {

page.click('#submit')

expect(res).toBe(200)

})

AI Codegen

03 · VERIFY

Verify Until Green

Force the AI to write modern code until every behavioral test passes. Self-heal loop catches regressions automatically.

checkout flow142ms

auth redirect89ms

email validation56ms

nav persistence201ms

Self-Heal Loop

100% Behavior Preserved

Visibility

The Migration Control Plane

Full visibility into every autonomous operation — workspace changes, AI reasoning, self-heal cycles, and confidence scoring in one auditable dashboard.

The Result

Migration That Actually Works

Dual-Stream Verification

Watches video of actual user behavior and records DOM events to guarantee the new system works exactly like the old one.

Automated Guardrails

If a generated slice fails, the infrastructure self-heals — reads the error and fixes the code until the test turns green. No 3am pages.

Vertical Slice Delivery

One working feature at a time, not risky "Big Bang" rewrites. See your first production-ready slice in days, not quarters.

Auth Module100%

Dashboard75%

Reports40%

Settings10%

Add the Migration Layer.

See a production-ready vertical slice from your own legacy codebase. No commitment. No “Big Bang.” Just proof that autonomous migration works.