# 2.9 — simplify skill pass (REFACTOR)

Phase: 2 — Topology (Surface B)
Stage: REFACTOR

Depends on: [2.5](2.5-api-stream.md), [2.6](2.6-frontend-react-flow.md)

- [ ] `simplify` pass on mock SSE route handler + React Flow wiring

## Verify

```bash
curl -N http://localhost:3000/api/stream   # delta every 5s, keepalive every 30s
pnpm test:e2e topology.e2e.ts              # required, must pass before merge
```