Simulation Engine

Twitter, Reddit, and a Polymarket-style prediction market run simultaneously every round via asyncio.gather.

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+---------------------------------------------+
|  Round memory (sliding window)              |
|   old: compacted . prev: full . now: live   |
+--+--------------+--------------+------------+
+--v------+  +----v----+  +------v--------+
| Twitter |  | Reddit  |  | Polymarket    |
| posts   |  | comments|  | AMM trades    |
+--+------+  +----+----+  +------+--------+
+--v--------------v--------------v------------+
|  Market-media bridge  (prices <-> posts)    |
+--+------------------------------------------+
+--v------------------------------------------+
|  Belief state (per agent)                   |
|   stance[-1,+1] . confidence[0,1] . trust   |
+---------------------------------------------+

• Three platforms, one round (#engine-three-platforms-one-round): Twitter and Reddit produce posts, replies, and reactions while Polymarket runs a constant-product AMM over an LLM-framed binary question.
• Market-media bridge (#engine-market-media-bridge): Traders see top social posts in their prompt; social agents see live market odds in theirs.
• Belief states (#engine-belief-states): Each agent tracks a topic stance in [-1, +1], confidence in [0, 1], and pairwise agent trust, updated every round.
• Sliding-window memory (#engine-sliding-window-memory): Older rounds compact asynchronously in the background while the previous round stays full-detail and the current round streams live.
• Per-round frame API (#engine-per-round-frame-api): GET /api/simulation/<id>/frame/<round> returns actions, active agents, market prices, and belief snapshots for replay scrubbers and CLI inspection.