Opus 5.5 orchestrates while Haiku and Sonnet run in parallel, with Jev routing micro-decisions

Bober_smart @Bober_smartOriginally posted 2026.10.18

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By tomorrow, everyone will be using this: Anthropic just revealed the ultimate power move for Claude Code  The concept: have Opus 5.5 design the master plan as a script, then deploy parallel swarms of the new Haiku 5.5  Massive scale operations with zero wasted Opus compute: the script manages the execution loop so Opus only reviews the final diff  Simply boot up Claude Code with these parameters:  claude --model opus --effort ultracode  Here is the task distribution:  -> Opus 5.5 translates your target into a fully runnable workflow script -> Haiku 5.5 scans all files concurrently at 340 tokens/sec to spot candidates -> Sonnet 5.5 applies each patch and validates findings within an isolated workspace -> You eliminate wasting Opus context on dozens of agent log transcripts  Opus is involved at only three specific steps:  -> writing the initial workflow script before execution -> analyzing verified results once the swarm wraps up -> giving final approval prior to committing any code to git  Opus architects | Haiku audits | Sonnet delivers  JEV engineering applies the exact same principle a level deeper: logic paths that require no deep reasoning (choosing files, picking tools, handling retries/stops) pass through JEV in milliseconds, leaving heavy models to focus only on complex branches  The complete architecture: Opus 5.5 orchestrates the core session and generates workflow.js pipeline() fans out instances of Haiku 5.5 to inspect every file parallel() schema validators eliminate false alarms directly in V8 Sonnet 5.5 applies fixes within dedicated, isolated worktrees verify double-checks all code diffs prior to summary generation Opus 5.5 processes exclusively the results that survived validation JEV routes lightweight micro-decisions in milliseconds Feed this architecture and prompt directly into Claude Code Reconfigure my Claude Code setup following this tree:  1. Execute the primary session using Opus 5.5 with ultracode enabled  2. Assign read-only scanning phases to Haiku 5.5 across all workflows, while routing code modification steps to Sonnet 5.5, running each edit inside its own isolated copy  3. Update CLAUDE.md with a new rule: assign a separate verifier agent to every issue before reporting, and terminate fix loops after two iterations without progress  4. Route fast, deterministic branching (tool selection, path routing, retry logic) via JEV Present every modification as a diff upfront do not execute changes until approved Bookmark this to stay one step ahead

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