Multi-Agent Orchestration and Workflow Patterns

Bun's 530k-line rewrite with 64 concurrent agents validates multi-agent patterns. Anthropic's six-step migration framework. New tools for bridging agents (bridge-harness-pi, Ruflo graph intelligence). Practical guides on self-improving loops and subagent trade-offs. New: Practical two-agent workflow combining Claude Code and Codex: one investigates, one builds, with deterministic checks and fresh reviewer.