deck-refreshlisted

# Deck Refresh Update numbers across the deck. The deck is the source of truth for formatting; you're only changing values. ## Preflight: Dependency Check Before starting (chat environment only), verify the required Python library is installed and install it if missing. ```bash python3 -c "import pptx" 2>/dev/null || python3 -m pip install python-pptx ``` | Library / Tool | Purpose | Required | |---|---|---| | `python-pptx` | Read the uploaded `.pptx`, edit text runs / table cells / chart data, and write the refreshed deck back out | Yes (chat path) | **Important**: Do not skip this step — the chat-mode edit workflow will fail without `python-pptx`. Office JS environment (PowerPoint Add-in) has no Python dependency. ## Environment check This skill works in both the PowerPoint add-in and chat. Identify which you're in before starting — the edit mechanism differs, the intent doesn't: - **Add-in** — the deck is open live; edit text runs, table cells, and chart data directly. - **Chat** — the deck is an uploaded file; edit it by regenerating the affected slides with the new values and writing the result back. Either way: smallest possible change, existing formatting stays intact. This is a four-phase process and the third phase is an approval gate. Don't edit until the user has seen the plan. ## Phase 1 — Get the data Use `ask_user_question` to find out how the new numbers are arriving: - **Pasted mapping** — user types or pastes "revenue $485M → $512M, EBITDA $120M