Claude Code workflow: Sonnet builds, Haiku scouts, Opus reviews in parallel worktrees

Arindam_1729 · x · 2026-10-14

A practical Claude Code setup assigns each model to its strength: Sonnet 5.5 builds features in isolated Git worktrees, Haiku 5.5 scouts the repo (AST indexing, dependencies, implementation paths) in parallel, and Opus 5.5 reviews architecture and verifies diffs before merge. Launch sessions like claude --worktree feat-auth and claude -w feat-scout --model haiku so agents edit and test in parallel without clobbering each other; .worktreeinclude shares local configs across worktrees. The quoted post also links a tutorial on building a Jev-style routing/decision model in 15 minutes.

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