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   "title": "Coin flip, seed 20261219",
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    "label": "descriptive, not inferential"
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  },
  {
   "arm_id": "weekend_counterfactual",
   "family": "weekend_counterfactual",
   "kind": "weekend_counterfactual",
   "title": "The legs the weekend freeze took away, on live",
   "description": "The exposure G2 refused or closed on US legs, held at live prices until the weekend reopen or the model's next decision on the symbol. Before costs.",
   "provenance": "src/sentiment_agent/analysis/mirror.py (this repository, MIT)",
   "uses_llm": true,
   "guards": [],
   "metrics": {
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    "sharpe_ann": null,
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  },
  {
   "arm_id": "rival_lexicon_follow",
   "family": "rival_lexicon_follow",
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   "title": "Lexicon sentiment trader (with the crowd)",
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   "provenance": "cjhutto/vaderSentiment (MIT, Copyright (c) 2016 C.J. Hutto) at commit 44fc044cd877310ee8278a0eadf34bcd50d41d06: scoring rules vaderSentiment/vaderSentiment.py:26-509 ported, general-word valences copied from vaderSentiment/vader_lexicon.txt; market vocabulary added in rivals/keyword_arm.py",
   "uses_llm": false,
   "guards": [
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    "G1_venue_integrity",
    "G2_weekend_freeze",
    "G3_size",
    "G4_stop",
    "G5_daily_kill",
    "G8_taker_only"
   ],
   "metrics": {
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    "n_hours": 65,
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  },
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   "arm_id": "rival_lexicon_fade",
   "family": "rival_lexicon_fade",
   "kind": "rival",
   "title": "Lexicon sentiment trader (against the crowd)",
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   "provenance": "cjhutto/vaderSentiment (MIT, Copyright (c) 2016 C.J. Hutto) at commit 44fc044cd877310ee8278a0eadf34bcd50d41d06: scoring rules vaderSentiment/vaderSentiment.py:26-509 ported, general-word valences copied from vaderSentiment/vader_lexicon.txt; market vocabulary added in rivals/keyword_arm.py",
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    "G3_size",
    "G4_stop",
    "G5_daily_kill",
    "G8_taker_only"
   ],
   "metrics": {
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  },
  {
   "arm_id": "rival_s2_fear_greed_confluence",
   "family": "rival_s2_fear_greed_confluence",
   "kind": "rival",
   "title": "Season-2 entry A: Fear & Greed with long/short confluence",
   "description": "Buys when the crypto Fear & Greed index is below 25 and fewer than 45% of accounts are long; sells when it is above 75 and more than 65% are long; otherwise holds. BTC and TSLA, 5% of balance a trade capped at $50, 3 trades a day per asset.",
   "provenance": "Season-2 Track 2 entry A (public repository, commit bb4804bff99e01e545a61e0f0ffe63b42117cc44), strategy.js:22-37, :77-80, :410-470, :551-565 and :667-671. No licence file: rebuilt from the described behaviour in rivals/registry.py, no code copied",
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   "guards": [
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    "G3_size",
    "G4_stop",
    "G5_daily_kill",
    "G8_taker_only"
   ],
   "metrics": {
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    "n_hours": 65,
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  {
   "arm_id": "rival_s2_sentiment_fusion",
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   "kind": "rival",
   "title": "Season-2 entry B: sentiment and news signal fusion",
   "description": "Fuses a Fear & Greed, long/short and taker-ratio sentiment signal with a keyword news signal, confidence-weighted; a bullish or bearish regime opens a 1-2.5% BTC position, an uncertain one closes it. Its technical, macro and on-chain signals need data the snapshot does not carry and are absent, which its own fusion allows for.",
   "provenance": "Season-2 Track 2 entry B (MIT, Copyright (c) 2026 its author; public repository, commit ee3b4d65dc116f5c86c8fe972549056d20e16e64): backend/src/signals/mcpSignals.ts:54-97 and :173-211, backend/src/signals/signalFusion.ts:9-83, backend/src/agents/strategyRouter.ts:8-150, backend/src/agents/agentCycle.ts:62-154, ported in rivals/registry.py",
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   "guards": [
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    "G4_stop",
    "G5_daily_kill",
    "G8_taker_only"
   ],
   "metrics": {
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 ],
 "families": {
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  "baseline_flat": 1,
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  "rival_s2_fear_greed_confluence": 1,
  "rival_s2_sentiment_fusion": 1,
  "twin_governed_replica": 1,
  "twin_ungoverned": 1,
  "weekend_counterfactual": 1
 },
 "coin_flip": {
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 },
 "replica_vs_live": {
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  "fills_priced": 2,
  "fills_unpriced": 0,
  "slippage": {
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 },
 "label": "descriptive, not inferential"
}