IBM Bob v2 introduces two major features for agentic software development: workflows and sub-agents. Workflows blend deterministic scripting with AI reasoning, ensuring predictability, efficiency, and debuggability by reserving AI calls only for tasks requiring genuine reasoning. Sub-agents are independent agent instances with isolated context windows that can run in parallel, reducing execution time and keeping context clean. A practical Java Unit Testing Workflow example demonstrates eight sequential steps where deterministic operations handle filesystem scanning and test execution, while AI-driven steps handle strategy generation and code generation via parallel sub-agents.
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