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Halowerk Offline Native AX Focusable Layout Tree Projection Detector
x402
Halowerk Offline Native AX Focusable Layout Tree Projection 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 identify gaps between native focusable accessibility tree (AX) nodes and their layout projections, plus DOM ancestor contractions in actual AX parent edges.
Price / call$0.003
Success—
StatusUnknown
How this service works
An accessibility tree mapper needs native focusable AX-to-layout projection gaps and the DOM ancestor contractions in actual AX parent edges.
Output
Returns a structured analysis of the target page including identified gaps between native focusable accessibility tree nodes and their corresponding layout tree projections, along with detected DOM ancestor contractions present in actual AX parent edges, enabling developers to pinpoint accessibility tree structure issues.
Example use cases
Accessibility audit before deployment
“Before we ship this new page, can you scan https://app.mysite.com/dashboard for any native focusable AX nodes that are missing from the layout tree projection, so we don't break screen reader navigation?”
Debugging screen reader focus issues
“Users are reporting that some focusable elements on https://store.example.com/checkout aren't reachable by keyboard — can you check for AX-to-layout projection gaps and DOM ancestor contractions that might explain it?”
Accessibility tree migration validation
“We just refactored the DOM on https://portal.example.com/settings — can you detect any new gaps in the native focusable AX layout projection or any unexpected AX parent edge contractions introduced by the changes?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/u/offline-native-ax-focusable-layout-tree-projection?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to specifically audit native focusable element representation in an accessibility layout tree projection and identify DOM ancestor contractions at AX parent edges — particularly useful for accessibility engineers diagnosing screen reader navigation failures, teams migrating or refactoring DOM structures, or automated accessibility CI pipelines that need to validate AX tree integrity against layout output.
Side effects
- Invalid or unreachable URL returns an error indicating the page could not be fetched
- URL exceeding 2048 characters is rejected with a validation error
- Pages behind authentication may return incomplete or empty AX analysis
- Dynamically rendered content that requires JavaScript execution may yield partial results
- Malformed URL format triggers a schema validation failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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