{
  "schema_version": "fwdvar_diagnostics_v4",
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      "code": "low_tier",
      "scope": "expiry",
      "severity": "WARN",
      "expiry_dt": "2026-05-12",
      "interval_from": null,
      "interval_to": null,
      "strike": null,
      "target_key": "2026-05-12",
      "message_short": "LOW tier (direct straddle)",
      "message_long": "Accept tier: LOW (DIRECT_STRADDLE_ONLY path)",
      "metrics": {}
    },
    {
      "code": "rejected",
      "scope": "expiry",
      "severity": "INFO",
      "expiry_dt": "2027-03-30",
      "interval_from": null,
      "interval_to": null,
      "strike": null,
      "target_key": "2027-03-30",
      "message_short": "Rejected: insufficient_strikes",
      "message_long": "Expiry rejected: insufficient_strikes",
      "metrics": {
        "reject_reason": "insufficient_strikes"
      }
    },
    {
      "code": "baseline_thin",
      "scope": "interval",
      "severity": "INFO",
      "expiry_dt": null,
      "interval_from": "2026-06-30",
      "interval_to": "2026-09-29",
      "strike": null,
      "target_key": "06-30\u219209-29",
      "message_short": "Thin baseline",
      "message_long": "Baseline quality: THIN (few neighbors: 1)",
      "metrics": {
        "baseline_n": 1
      }
    },
    {
      "code": "low_source",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-06-30",
      "interval_to": "2026-09-29",
      "strike": null,
      "target_key": "06-30\u219209-29",
      "message_short": "LOW confidence",
      "message_long": "Event confidence: LOW (baseline not robust)",
      "metrics": {
        "confidence": "LOW"
      }
    },
    {
      "code": "baseline_thin",
      "scope": "interval",
      "severity": "INFO",
      "expiry_dt": null,
      "interval_from": "2026-09-29",
      "interval_to": "2026-12-29",
      "strike": null,
      "target_key": "09-29\u219212-29",
      "message_short": "Thin baseline",
      "message_long": "Baseline quality: THIN (few neighbors: 1)",
      "metrics": {
        "baseline_n": 1
      }
    },
    {
      "code": "low_source",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-09-29",
      "interval_to": "2026-12-29",
      "strike": null,
      "target_key": "09-29\u219212-29",
      "message_short": "LOW confidence",
      "message_long": "Event confidence: LOW (baseline not robust)",
      "metrics": {
        "confidence": "LOW"
      }
    },
    {
      "code": "elevated_fwdvol",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-04-21",
      "interval_to": "2026-04-28",
      "strike": null,
      "target_key": "04-21\u219204-28",
      "message_short": "Elevated fwd vol (37.1%)",
      "message_long": "Forward volatility: 37.1% (threshold: 30%)",
      "metrics": {
        "fwd_vol": 0.3705249212684897,
        "threshold": 0.3
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    },
    {
      "code": "elevated_fwdvol",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-04-28",
      "interval_to": "2026-05-05",
      "strike": null,
      "target_key": "04-28\u219205-05",
      "message_short": "Elevated fwd vol (34.9%)",
      "message_long": "Forward volatility: 34.9% (threshold: 30%)",
      "metrics": {
        "fwd_vol": 0.34859448275036126,
        "threshold": 0.3
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    },
    {
      "code": "elevated_fwdvol",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-05-12",
      "interval_to": "2026-05-26",
      "strike": null,
      "target_key": "05-12\u219205-26",
      "message_short": "Elevated fwd vol (35.7%)",
      "message_long": "Forward volatility: 35.7% (threshold: 30%)",
      "metrics": {
        "fwd_vol": 0.35690093975085607,
        "threshold": 0.3
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    },
    {
      "code": "low_coverage",
      "scope": "run",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": null,
      "interval_to": null,
      "strike": null,
      "target_key": "run",
      "message_short": "Low coverage (24%)",
      "message_long": "Weighted-mid coverage: 23.8% (threshold: 50%)",
      "metrics": {
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  "summary": {
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    "build_metadata": {
      "git_commit": "b1861c50",
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      "diagnostics_level": "lite",
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    "ui_limits": {
      "max_horizon_days": 56,
      "max_horizon_label": "8w_liquid",
      "min_horizon_days": 0,
      "tz": "Asia/Kolkata",
      "notes": "UI clamps horizon; avoid LEAPS/illiquid expiries beyond 8 weeks"
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    "ui_capabilities": {
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        "smile_density_plots": false,
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      "counts": {
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      "asof_iso": "2026-04-13T09:30:03.709356+05:30",
      "asof_source": "structure_summary.quote_context_dt",
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      "source": "market_calendar.list_upcoming_events",
      "id_namespace": "market_calendar",
      "id_format": "CATEGORY_YYYYMM",
      "events": []
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}