type: overview title: HAnS Overview created: '2026-05-25' updated: '2026-05-25' tags:

• domain/plugin
• type/overview status: seed related: [] sources: []

HAnS (Helping Annotate Software) is a JetBrains IDE plugin for feature-oriented software development. It enables developers to annotate, track, and analyze features throughout a codebase.

Provide tooling for feature location, mapping, and metrics in software systems. HAnS itself is annotated with features — a self-demonstrating example of its own capabilities.

• Feature model definition (.feature-model format — hierarchical)
• Code annotation: &begin[Feature], &end[Feature], &line[Feature]
• File/folder mapping: .feature-to-file, .feature-to-folder
• Feature metrics: line count, scattering degree, tangling degree, file-to-feature mappings
• IDE integration: tool windows, context-aware completion, syntax highlighting, refactoring (rename, find usages)

• Language: Kotlin
• Build: Gradle (build.gradle.kts)
• Platform: IntelliJ Platform (min build 2025.1 / 251)
• Java: 21+
• License: Apache 2.0
• Published: JetBrains Marketplace (plugin ID 22759)

• GitHub: isselab/HAnS
• Branch: main

See Modules Index for full breakdown.