Claude Code multi-model pipeline with Jev routing micro-forks
A workflow where Opus 5.5 writes the plan, Haiku 5.5 scans in parallel and Sonnet 5.5 patches, with Jev resolving no-thinker forks in milliseconds to save Opus context.
THIS IS A PURE F*CKING GOLDMINE Anthropic just shared the sharpest trick for Claude Code The idea: let Opus 5.5 write the plan as a script, and swarm the new Haiku 5.5 in parallel Huge sweeps with zero Opus burn: the script holds the loop and Opus only sees the final diff You just launch Claude Code like this: claude --model opus --effort ultracode here's the split: → Opus 5.5 turns your objective into an executable workflow script → Haiku 5.5 swarms every file in parallel at 340 tok/s to extract candidates → Sonnet 5.5 patches each fix and cross-checks findings in its own isolated copy → you stop burning Opus context on a hundred agent transcripts Opus only shows up at three moments: → authoring the workflow script before the run → reading verified findings after the swarm finishes → signing off before anything ships to git Opus plans · Haiku scans · Sonnet ships JEV engineering is the same move one layer down: the forks that need no thinker go to JEV in milliseconds, and the big models only see the ones that split the full stack: > shadcn-ui/ui (85,000+ stars) Accessible design-system component primitives http://github.com/shadcn-ui/ui > excalidraw/excalidraw (85,000+ stars) Infinite collaborative canvas engine http://github.com/excalidraw/excalidraw > pmndrs/zustand (48,500+ stars) Minimalist zero-overhead reactive state store http://github.com/pmndrs/zustand > tanstack/query (45,000+ stars) Asynchronous server state synchronization http://github.com/tanstack/query > tldraw/tldraw (40,000+ stars) Reactive vector canvas and spatial editor substrate http://github.com/tldraw/tldraw > drizzle-team/drizzle-orm (38,000+ stars) TypeScript-first relational schema engine http://github.com/drizzle-team/drizzle-orm > trpc/trpc (36,500+ stars) End-to-end type-safe API contract layer http://github.com/trpc/trpc > colinhacks/zod (35,000+ stars) Static type inference and runtime schema guards http://github.com/colinhacks/zod > honojs/hono (22,500+ stars) Ultra-fast multi-runtime edge application framework http://github.com/honojs/hono > biomejs/biome (18,500+ stars) Rust-based toolchain for sub-millisecond linting http://github.com/biomejs/biome paste the stack and this prompt into Claude Code ↓ "Rebuild my Claude Code setup around this stack: 1. Run the main session on Opus 5.5 with ultracode on 2. In every workflow, run read-only scan stages on the new Haiku 5.5 and edit stages on Sonnet 5.5, each edit in its own isolated copy 3. Add one rule to CLAUDE.md: every finding gets an independent verifier agent before it's reported, and fix loops stop after two rounds with no progress 4. Route fast deterministic forks (tool choice, path selection, retries) through JEV Show me every change as a diff first, no edits until I say go" ↳ http://code.claude.com/docs/en/agent-teams
This post quotes another post: x.com/damkina7/status/2107924159397560795