Response drift: kalshi — `markets[].is_provisional` not accessed by normalizer

[realfishsam]

Exchange

kalshi

Severity

MEDIUM

What Our Normalizer Expects

The kalshi normalizer does not access is_provisional from raw market objects. The field is not declared in the KalshiRawMarket TypeScript interface and is not mapped to any unified field.

What The Live API Returns

The live markets endpoint (GET /trade-api/v2/markets) returns:

markets[].is_provisional: boolean

When true, this indicates the market's settlement is provisional and subject to revision.

Impact

• Normalized kalshi markets carry no indication of provisional settlement status
• Consumers may treat provisional settlements as final, leading to incorrect P&L or position calculations
• No way to filter or flag provisional markets in the unified feed

Suggested Fix

1. Add is_provisional?: boolean to the KalshiRawMarket interface
2. Surface it on the normalized UnifiedMarket (e.g., as isProvisional in sourceMetadata or as a top-level flag if the unified type supports it)

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Found by automated response shape drift audit