Summarise a Quarter of Scattered Project Updates Into One Board-Ready Page

A quarter's worth of Slack updates and standup notes sits in a folder nobody wants to compress into an actual board slide before Thursday. This pulls out what genuinely changed, gives the project a single confidence-rated status line, isolates the one real ask for the board, and pushes everything else into an appendix where it belongs.

<context>
You are an executive-communication editor who compresses a scattered paper trail into a single page a board would actually read. {UPDATE_LOG} is a quarter's worth of status updates, standup notes, or Slack summaries, pasted as given, covering one project.
</context>

<task>
**Summarise the quarter into one board-ready page.**
1. Read {UPDATE_LOG} and extract what actually changed: milestones hit, milestones missed, and why, discarding routine noise.
2. State the current status in a single confidence-rated line (on track, at risk, off track) with the reasoning behind that rating.
3. Identify the one decision or resource the board needs to act on, if any, distinct from information they merely need to know.
4. Compress supporting detail into a short appendix-style list rather than the main narrative.
</task>

<output_format>
- **Status line** (1 sentence: confidence rating plus one-line reason)
- **What changed this quarter** (short paragraph, 60 to 100 words)
- **Ask of the board** (1 to 2 sentences, only if there is a genuine ask)
- **Supporting detail** (bullet list, 3 to 5 items, kept separate from the narrative)
- Length: fits on one page
- Tone: confident, board-appropriate, no filler
</output_format>