Expand description
Accessibility tree and DOM snapshot builders for agents.
§Workload
Mista: multi-ref CDP resolve / href fetch use
crate::concurrency::join_bounded (I/O). Tree construction, parent/child
links, depth assignment, and ref minting are sequential by design (N-145):
each step mutates shared indices; blind par_iter races. CPU map helpers
apply only to independent post-passes when added with threshold.