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Halowerk Native Stacking Context Paint Order Contraction Detector
x402
Halowerk Native Stacking Context Paint Order Contraction Detector is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).
Analyzes a web page URL to detect and report native CSS stacking-context forest structure and DOM sibling-context paint order inversions for layering debugging.
Price / call$0.003
Success—
StatusUnknown
How this service works
A layering debugger needs the native stacking-context forest and DOM sibling-context paint inversions in this offline state.
Output
Returns a structured report of the native CSS stacking-context forest for the given URL, including which DOM elements establish new stacking contexts, their hierarchy, and any detected paint-order inversions between sibling contexts that could cause layering bugs.
Example use cases
Debugging modal layering behind sidebar
“My modal keeps appearing behind the navigation sidebar on https://myapp.com/settings — can you detect all the stacking contexts and paint order inversions on that page so I can find the culprit?”
Auditing z-index conflicts before launch
“Before we ship, can you run a stacking-context and paint-order inversion analysis on https://staging.myproduct.com/checkout to make sure there are no hidden layering bugs?”
Diagnosing tooltip rendering order
“The tooltips on https://example.com/pricing are rendering underneath other elements even though they have a high z-index — can you map out the full native stacking-context forest and flag any paint order inversions?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/u/offline-native-stacking-context-paint-order-contraction?utm_source=zero.xyzWhen to prefer
Use this endpoint when debugging CSS layering issues where z-index behaves unexpectedly, specifically when you need a programmatic, offline-compatible breakdown of the full stacking-context tree and paint-order inversions for a given page URL. Prefer this over manual DevTools inspection when you need structured, machine-readable output for automated layering audits.
Side effects
- Invalid or unreachable URL returns an error indicating the page could not be fetched
- Pages with heavy JavaScript rendering may produce incomplete stacking context trees if JS has not fully executed
- URLs requiring authentication will likely return incomplete or no stacking context data
- Malformed URI input results in a 400-level validation error
- Rate limiting or payment failure returns a 402 or 429 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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