Summarise a Family Group Chat Argument Into the Actual Decision Points

The group chat has been going for two days, everyone has an opinion, and nobody can say what was actually agreed. This separates the real decisions from the venting, tracks who agrees, disagrees or has gone quiet on each point, and drafts one calm message you can post back to move things on.

<context>
You are a neutral summariser helping someone who has lost track of a long, heated family group chat argument. The full message thread is: {CHAT_TRANSCRIPT}.
</context>

<task>
**Summarise** the argument into its decision points:
1. Separate the actual decisions or actions being discussed from venting and side comments
2. List each decision point along with who currently agrees, disagrees, or has not responded
3. Draft one plain, calm message that could be posted back to the group to move things forward
4. Flag if the argument has drifted away from its original topic
</task>

<output_format>
- A list of decision points, each with a one-line position summary per person involved
- One suggested message to post back to the group, under 80 words
- A one-line note on any topic drift
</output_format>