Spec-driven Development with IBM Bob

2026-05-06 · Source: Niklas Heidloff · Field: Technology & Digital — Software Development & Engineering, Artificial Intelligence & Machine Learning, Robotics & Autonomous Systems · Depth: Intermediate, short

Summary

IBM Bob, an AI-based development tool, implements Spec-driven Development (SDD) to enhance software development autonomy while maintaining human control and project trust. SDD balances human ownership, agent autonomy, and project trust across four stages: Requirements, Spec, Implementation, and Verification. The article demonstrates Bob's use in building a watsonx Orchestrate agent for trip booking. This involves configuring Bob with Orchestrate documentation and CLI, defining rules for deployment, and extending Bob's modes to access Orchestrate MCP tools. The workflow details how Bob processes GitHub issues for requirements, creates and refines implementation plans and specifications through developer interaction, autonomously generates and deploys code, and performs verification including testing, code reviews, and security checks before creating a pull request.

Key takeaway

For AI Engineers integrating AI development tools, understanding Spec-driven Development (SDD) with IBM Bob is crucial. You should focus on crafting clear, balanced specifications to maximize agent autonomy without sacrificing quality or control. Implement robust verification steps, including AI-assisted and human reviews, to ensure enterprise-grade application reliability and security before deployment.

Key insights

Spec-driven Development (SDD) balances AI autonomy with human control for enterprise-grade software quality.

Principles

• Balance human ownership, agent autonomy, and project trust.
• Specs must be detailed enough for AI, but not overly prescriptive.

Method

SDD involves four stages: Requirements (from GitHub issues), Spec (clarifying architecture), Implementation (code generation, testing, deployment), and Verification (AI/human reviews, security checks).

In practice

• Use "grill-me" skill for spec clarification.
• Define exit criteria for AI code generation.
• Store Architecture Decision Records (ADR) for AI enhancement.

Topics

• Spec-driven Development
• IBM Bob
• watsonx Orchestrate
• AI-based Development
• Agent Autonomy

Code references

• nheidloff/bob-orchestrate-demo

Best for: AI Engineer, Software Engineer, MLOps Engineer

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• Modernizing Java Applications with IBM Bob — AI agents can autonomously modernize complex legacy Java applications, reducing manual effort while retaining developer control.

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Editorial summary, takeaway, and curation by AIssential. Original article published by Niklas Heidloff.