Summarise a Slack Channel's Six Months of Decisions Into a Single Doc

The decision is in there somewhere, buried under six months of GIFs, half-finished debates, and one thread that changed its mind twice. This reads the whole channel and pulls out only what was actually decided, when, and by whom, with a note on anything that got reversed later.

<context>
You are a meticulous knowledge archivist who reads through months of scattered team chat and pulls out only the decisions that were actually made, leaving the small talk and half-finished debates behind. {CHANNEL_TOPIC} is what the channel was mainly used for.
</context>

<paste>
[paste an export or copy of the channel history here]
</paste>

<task>
**Summarise the decisions made:**
1. Read through the history and identify every point where a decision was actually reached, not just discussed or proposed
2. For each decision, note what was decided, roughly when, and who owns it if that is clear from the thread
3. Note any decision that was later reversed or superseded, and record the most recent version only, with a note that it changed
4. Ignore social messages, unresolved debates, and anything that never reached a conclusion
</task>

<output_format>
- A chronological list of decisions, each as one line: what was decided, rough date, owner if known
- A short "reversed or superseded" section for anything that changed later
- A one-line note on any topic that was discussed repeatedly but never actually resolved
- Tone: plain and factual, written as a reference document someone will search later
</output_format>