Under the hood
Useful1 Signal0
Background attach events now record cold starts, surface and first frame details.
What's wrong with this entry?
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What
The tengu_bg_attach_outcome event carries considerably more detail about how an attach happened.
Details
- New attributes:
attach_cold,daemon_booted,first_frame_kind,surface, a validatedvia, plus message-count fields. - Those attribute names were added to the low-cardinality attribute allowlist.
viais now filtered against a fixed set (starting, running, resuming and so on) rather than passed through as-is.
Evidence
first_frame_kind
Strings lifted out of the shipped bundle, so the claim above can be checked against them.