What problem does it solve? Project documentation drifts out of date as features ship, architecture evolves, and dependencies change, leaving AI assistants and team members working from stale context. This Skill provides a structured process for keeping the context/ documentation folder current. ## Core Features & Use Cases - Update Triggers: Defines exactly which context files to update when adding features, changing architecture, swapping dependencies, or completing sprints. - Diagram & Changelog Maintenance: Covers Mermaid-based C4 diagrams (system context, component, domain flow) and append-only CHANGELOG management with release procedures. - Use Case: After adding a Redis caching layer, follow the skill's checklist to update project-overview.md, architecture.md, component-diagram.md, library-docs.md, build-plan.md, progress-tracker.md, and CHANGELOG.md in one pass. ## Quick Start Ask the AI to apply the context-maintenance skill and update all context documentation after adding a new feature to the project.