Java Diagrams Generator with modular step-based configuration

Generate comprehensive Java project diagrams through a modular, step-based interactive process that covers UML sequence diagrams, UML class diagrams, C4 model diagrams, and UML state machine diagrams using PlantUML syntax. This is an interactive SKILL.

What is covered in this Skill?

• UML sequence diagram generation for application workflows and API interactions
• UML class diagram generation for package structure and class relationships
• C4 model diagram generation at Context/Container/Component levels only (levels 1–3; Code/Level 4 not generated)
• UML state machine diagram generation for entity lifecycles and business workflows
• PlantUML syntax for all diagram types
• File organization strategies: single-file, separate-files, or integrated with existing documentation
• Final diagram validation with PlantUML syntax checking

Constraints

Before applying any diagram generation, ensure the project validates. If validation fails, stop immediately — do not proceed until all validation errors are resolved.