Continue working on a change by creating the next artifact. Input : Optionally specify a change name. If omitted, check if it can be inferred from conversation context. If vague or ambiguous you MUST prompt for available changes. Steps 1. If no change name provided, prompt for selection Run to get available changes sorted by most recently modified. Then use the AskUserQuestion tool to let the user select which change to work on. Present the top 3-4 most recently modified changes as options, showing: - Change name - Schema (from field if present, otherwise "spec-driven") - Status (e.g., "0/5 t…