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fix(verifier): skip llm enumeration on cross-fade frames

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a navhost mid-transition carries >1 route *Screen in a collapsed
coordinate space; acting on it taps garbage (soft keyboard). real runs
showed the llm acting on 44% of steps being such frames. skip them so the
llm re-observes a settled frame next step.
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pj committed 2026-07-13 09:02:16 +05:30
1 parent c9e0f6a366
commit 133ce17d72
2 files changed
+42
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internal/verifier/llm_test.go
+18
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@@ -235,6 +235,24 @@ func TestCandidatesOffRouteLeafYieldsNothing(t *testing.T) {
}
}
func TestCandidatesSkipsCrossFadeFrames(t *testing.T) {
// Two route *Screen tags alive at once is a NavHost cross-fade: its layout is
// mid-animation (collapsed coordinate space), so the LLM must NOT act on it.
crossFade := `{
"attributes": {"bounds": "[0,0,320,640]"},
"children": [
{"attributes": {"resource-id": "LedgerScreen", "bounds": "[0,0,320,640]"}, "children": [
{"attributes": {"resource-id": "TxnSubmit", "text": "Add credit", "bounds": "[20,332,300,380]"}, "clickable": true, "enabled": true, "children": []}
]},
{"attributes": {"resource-id": "AddTransactionScreen", "bounds": "[0,0,320,640]"}, "children": []}
]
}`
v := enumVerifier(t, "{kind:'builtin', verb:'taps'}", crossFade)
if got := v.Candidates(); got != nil {
t.Errorf("cross-fade frame should yield no candidates, got %v", descriptions(got))
}
}
func TestCandidatesNilWithoutTreeOrActions(t *testing.T) {
withActions := newLoadedVerifier(t, "globalThis.actions = {kind:'builtin', verb:'taps'};")
if got := withActions.Candidates(); got != nil {