PSI - Plan Spec Implement

Structured workflow for planning, specifying, and implementing changes with documentation-first approach.

When to Use

Only use when:

• Explicitly directed by the user
• Mentioned in project AGENTS.md file

Do not use automatically - this is an opt-in workflow, not a default.

Core Workflow

Plan → Spec → Implement

Phases are independent - you can start with any phase, but all must ensure documentation stays up-to-date.

Key Principles