chore(predictions): extract shared tags and remove unused open_interest (#1512)

- Move GEOPOLITICAL_TAGS, TECH_TAGS, FINANCE_TAGS, and EXCLUDE_KEYWORDS
  to shared/prediction-tags.json so seed, RPC handler, and client all
  reference a single source of truth
- Remove open_interest proto field (always 0 for Polymarket, never
  displayed in UI) and corresponding openInterest assignments

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Elie Habib <elie.habib@gmail.com>

proto/worldmonitor/prediction/v1/prediction_market.proto

@@ -36,6 +36,5 @@ message PredictionMarket {
   string category = 7;
   // Source platform (Polymarket, Kalshi, etc.).
   MarketSource source = 8;
-  // Open interest (number of outstanding contracts). Zero if unavailable.
-  double open_interest = 9;
+  reserved 9;
 }

scripts/_prediction-scoring.mjs

@@ -1,11 +1,6 @@
-export const EXCLUDE_KEYWORDS = [
-  'nba', 'nfl', 'mlb', 'nhl', 'fifa', 'world cup', 'super bowl', 'championship',
-  'playoffs', 'oscar', 'grammy', 'emmy', 'box office', 'movie', 'album', 'song',
-  'streamer', 'influencer', 'celebrity', 'kardashian',
-  'bachelor', 'reality tv', 'mvp', 'touchdown', 'home run', 'goal scorer',
-  'academy award', 'bafta', 'golden globe', 'cannes', 'sundance',
-  'documentary', 'feature film', 'tv series', 'season finale',
-];
+import predictionTags from '../shared/prediction-tags.json' with { type: 'json' };
+
+export const EXCLUDE_KEYWORDS = predictionTags.excludeKeywords;
 
 export const MEME_PATTERNS = [
   /\b(lebron|kanye|oprah|swift|rogan|dwayne|kardashian|cardi\s*b)\b/i,

scripts/seed-prediction-markets.mjs

@@ -5,6 +5,7 @@ import {
   isExcluded, isMemeCandidate, tagRegions, parseYesPrice,
   shouldInclude, scoreMarket, filterAndScore, isExpired,
 } from './_prediction-scoring.mjs';
+import predictionTags from '../shared/prediction-tags.json' with { type: 'json' };
 
 loadEnvFile(import.meta.url);
 
@@ -17,22 +18,9 @@ const KALSHI_ENABLED = process.env.KALSHI_API_KEY !== undefined && process.env.K
 const FETCH_TIMEOUT = 10_000;
 const TAG_DELAY_MS = 300;
 
-const GEOPOLITICAL_TAGS = [
-  'politics', 'geopolitics', 'elections', 'world',
-  'ukraine', 'china', 'middle-east', 'europe',
-  'economy', 'fed', 'inflation',
-];
-
-const TECH_TAGS = [
-  'ai', 'tech', 'crypto', 'science',
-  'elon-musk', 'business', 'economy',
-];
-
-const FINANCE_TAGS = [
-  'economy', 'fed', 'inflation', 'interest-rates', 'recession',
-  'trade', 'tariffs', 'debt-ceiling',
-  'crypto', 'business', 'markets',
-];
+const GEOPOLITICAL_TAGS = predictionTags.geopolitical;
+const TECH_TAGS = predictionTags.tech;
+const FINANCE_TAGS = predictionTags.finance;
 
 async function fetchEventsByTag(tag, limit = 20) {
   const params = new URLSearchParams({

server/worldmonitor/prediction/v1/list-prediction-markets.ts

@@ -18,6 +18,7 @@ import {
 
 import { CHROME_UA, clampInt } from '../../../_shared/constants';
 import { cachedFetchJson, getCachedJson } from '../../../_shared/redis';
+import predictionTags from '../../../../shared/prediction-tags.json';
 
 const REDIS_CACHE_KEY = 'prediction:markets:v1';
 const REDIS_CACHE_TTL = 600; // 10 min
@@ -96,18 +97,9 @@ interface BootstrapData {
   finance?: BootstrapMarket[];
 }
 
-const EXCLUDE_KEYWORDS = [
-  'nba', 'nfl', 'mlb', 'nhl', 'fifa', 'world cup', 'super bowl', 'championship',
-  'playoffs', 'oscar', 'grammy', 'emmy', 'box office', 'movie', 'album', 'song',
-  'streamer', 'influencer', 'celebrity', 'kardashian',
-  'bachelor', 'reality tv', 'mvp', 'touchdown', 'home run', 'goal scorer',
-  'academy award', 'bafta', 'golden globe', 'cannes', 'sundance',
-  'documentary', 'feature film', 'tv series', 'season finale',
-];
-
 function isExcluded(title: string): boolean {
   const lower = title.toLowerCase();
-  return EXCLUDE_KEYWORDS.some(kw => lower.includes(kw));
+  return predictionTags.excludeKeywords.some(kw => lower.includes(kw));
 }
 
 const KALSHI_VOLUME_THRESHOLD = 5000;
@@ -146,7 +138,7 @@ function mapEvent(event: GammaEvent, category: string): PredictionMarket {
     closesAt: Number.isFinite(closesAtMs) ? closesAtMs : 0,
     category: category || '',
     source: MarketSource.MARKET_SOURCE_POLYMARKET,
-    openInterest: 0,
+
   };
 }
 
@@ -162,7 +154,7 @@ function mapMarket(market: GammaMarket): PredictionMarket {
     closesAt: Number.isFinite(closesAtMs) ? closesAtMs : 0,
     category: '',
     source: MarketSource.MARKET_SOURCE_POLYMARKET,
-    openInterest: 0,
+
   };
 }
 
@@ -179,7 +171,6 @@ function mapKalshiMarket(market: KalshiMarket, category: string, eventTitle?: st
     closesAt: Number.isFinite(closesAtMs) ? closesAtMs : 0,
     category: category || '',
     source: MarketSource.MARKET_SOURCE_KALSHI,
-    openInterest: parseFloat(market.open_interest_fp || '0'),
   };
 }
 
@@ -259,7 +250,7 @@ export const listPredictionMarkets: PredictionServiceHandler['listPredictionMark
               closesAt: m.endDate ? Date.parse(m.endDate) : 0,
               category: category || '',
               source: m.source === 'kalshi' ? MarketSource.MARKET_SOURCE_KALSHI : MarketSource.MARKET_SOURCE_POLYMARKET,
-              openInterest: 0,
+          
             }));
             return { markets, pagination: undefined };
           }

shared/prediction-tags.json

@@ -0,0 +1,24 @@
+{
+  "geopolitical": [
+    "politics", "geopolitics", "elections", "world",
+    "ukraine", "china", "middle-east", "europe",
+    "economy", "fed", "inflation"
+  ],
+  "tech": [
+    "ai", "tech", "crypto", "science",
+    "elon-musk", "business", "economy"
+  ],
+  "finance": [
+    "economy", "fed", "inflation", "interest-rates", "recession",
+    "trade", "tariffs", "debt-ceiling",
+    "crypto", "business", "markets"
+  ],
+  "excludeKeywords": [
+    "nba", "nfl", "mlb", "nhl", "fifa", "world cup", "super bowl", "championship",
+    "playoffs", "oscar", "grammy", "emmy", "box office", "movie", "album", "song",
+    "streamer", "influencer", "celebrity", "kardashian",
+    "bachelor", "reality tv", "mvp", "touchdown", "home run", "goal scorer",
+    "academy award", "bafta", "golden globe", "cannes", "sundance",
+    "documentary", "feature film", "tv series", "season finale"
+  ]
+}

src/generated/client/worldmonitor/prediction/v1/service_client.ts

@@ -29,7 +29,6 @@ export interface PredictionMarket {
   closesAt: number;
   category: string;
   source: MarketSource;
-  openInterest: number;
 }
 
 export interface PaginationResponse {

src/generated/server/worldmonitor/prediction/v1/service_server.ts

@@ -29,7 +29,6 @@ export interface PredictionMarket {
   closesAt: number;
   category: string;
   source: MarketSource;
-  openInterest: number;
 }
 
 export interface PaginationResponse {

src/services/prediction/index.ts

@@ -24,22 +24,11 @@ const breaker = createCircuitBreaker<PredictionMarket[]>({ name: 'Polymarket', c
 
 const client = new PredictionServiceClient(getRpcBaseUrl(), { fetch: (...args) => globalThis.fetch(...args) });
 
-const GEOPOLITICAL_TAGS = [
-  'politics', 'geopolitics', 'elections', 'world',
-  'ukraine', 'china', 'middle-east', 'europe',
-  'economy', 'fed', 'inflation',
-];
+import predictionTags from '../../../shared/prediction-tags.json';
 
-const TECH_TAGS = [
-  'ai', 'tech', 'crypto', 'science',
-  'elon-musk', 'business', 'economy',
-];
-
-const FINANCE_TAGS = [
-  'economy', 'fed', 'inflation', 'interest-rates', 'recession',
-  'trade', 'tariffs', 'debt-ceiling',
-  'crypto', 'business', 'markets',
-];
+const GEOPOLITICAL_TAGS = predictionTags.geopolitical;
+const TECH_TAGS = predictionTags.tech;
+const FINANCE_TAGS = predictionTags.finance;
 
 interface BootstrapPredictionData {
   geopolitical: PredictionMarket[];