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NSE options chain: OI buildup, PCR, max pain, IV (Nifty/BankNifty)
Passed 16 of 20 test cases with the skill, and 13 of 20 without it.
and 2 more in the full report
4 fixed14 passed either way4 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.
If Nifty Put-Call Ratio calculates to 0.95, how is this market sentiment classified based on standard option chain sentiment ranges?
| Checked | Without skill | With skill |
|---|---|---|
| Classifies a PCR between 0.8 and 1.2 as a neutral market sentiment zone | Missed | Passed |
The instructions your model reads when the skill loads.
Analyze NSE options chain for Nifty and BankNifty — open interest buildup, put-call ratio, max pain level, and implied volatility — using NSE's public JSON API.
$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers | Out-Null
$chain = Invoke-RestMethod -Uri "https://www.nseindia.com/api/option-chain-indices?symbol=NIFTY" `
-Headers $headers -WebSession $nse
$chain.records.data | Select-Object strikePrice,
@{N='CE_OI';E={$_.CE.openInterest}}, @{N='CE_IV';E={$_.CE.impliedVolatility}},
@{N='PE_OI';E={$_.PE.openInterest}}, @{N='PE_IV';E={$_.PE.impliedVolatility}} |
Where-Object { $_.CE_OI -or $_.PE_OI } |
Sort-Object strikePrice
$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers | Out-Null
$chain = Invoke-RestMethod -Uri "https://www.nseindia.com/api/option-chain-indices?symbol=NIFTY" `
-Headers $headers -WebSession $nse
$totalCE_OI = ($chain.records.data | ForEach-Object { $_.CE.openInterest } | Measure-Object -Sum).Sum
$totalPE_OI = ($chain.records.data | ForEach-Object { $_.PE.openInterest } | Measure-Object -Sum).Sum
$pcr = [math]::Round($totalPE_OI / $totalCE_OI, 2)
Write-Host "Nifty PCR: $pcr (CE OI: $totalCE_OI | PE OI: $totalPE_OI)"
test cases passed, vs 13 / 20 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.