What problem does it solve? When resuming work on a long-running project in a new Claude Code session, all prior context is lost. This Skill restores the full picture of an existing activity—its background, decisions, logs, materials, and progress—so you can continue working without re-explaining everything. ## Core Features & Use Cases - Activity Context Aggregation: Calls the check_in tool to gather pinned decisions, logs, materials, related topics, and goal status for a selected activity. - Progress Summarization: Presents a two-section overview (summary and progress) including intent tags and remaining work, so you can start immediately. - Goal Lifecycle Handling: Automatically judges ready goals, sets undefined goals, verifies external waiting conditions, and triages blocking asks. - Use Case: You return to a project after a week and say "前回の続き" (continue from last time). The Skill lists your in-progress activities, checks in to the one you pick, and reports where things stand and what to do next. ## Quick Start Say "check in to my current activity" or "let's resume where we left off" to restore the context and progress of your ongoing work.