openspec-apply-change

What problem does it solve? It removes the guesswork of turning an OpenSpec change proposal into working code by walking through each task in the change, tracking progress, and keeping implementation aligned with the approved specs and design artifacts. ## Core Features & Use Cases - Change Selection and Status Inspection: Resolves the target change from user input or conversation context, then reads schema, progress, and task state via openspec status and openspec instructions apply. - Guided Task Implementation Loop: Reads all context files (proposal, specs, design, tasks), implements each pending task, and marks checkboxes complete as work progresses. - State-Aware Handling: Detects blocked or completed states, pauses on ambiguity or errors, and suggests archiving when all tasks finish. - Use Case: A developer has an approved OpenSpec change with 7 tasks and asks the AI to implement them; the skill reads the spec artifacts, codes each task, updates the tasks file, and reports 7/7 completion. ## Quick Start Ask the AI to implement the tasks from your OpenSpec change, optionally naming the change, for example: implement the tasks for the add-user-auth change.