Issue 15641 triage, 2026-10-21
Host: Linux x86_64, isolated worktree /home/ubuntu/wt/issue-15641
Main: b5a226e49c52ecab4ddc2d678a7012d97e651a6a

Attempt 1: reporter harness, literal application to current main
Command: git apply --check /tmp/issue-15641-harness.patch
Result: patch does not apply: T3MarkdownText.mm, T3MarkdownTextRun.mm,
T3MarkdownTextShadowNode.mm no longer exist; knip.jsonc hunk also fails.

Attempt 2: workload adapted to current main, no native profiling patches
Applied only fake-provider/corpus, launch-thread script and profiling docs.
Updated launch-thread imports from effect/unstable/rpc and effect/unstable/socket
 to effect/rpc and effect/socket for the installed Effect 4.0.5.
Installed dependencies with /home/ubuntu/t3code/node_modules/.bin/vp i.
Started node_modules/.bin/vp run dev:server (isolated .t3).
Registered grok-perf pointing to stream-agent.ts with isolated GROK_HOME.
Ran launch-thread.ts --instance grok-perf --model perf-stream
 --prompt "perf scenario 30 25 60" (origin/token omitted).
RPC accepted thread 70be9980-d9d0-4974-ad13-1dbbf53c1aab.
Read-only projection check: 31 assistant messages, 217331 bytes of payload JSON.
This proves only workload execution, not UI reproduction.

Attempt 3: current-main EAS iOS simulator static build
Command: npx --yes eas-cli@latest build --platform ios --profile triage-15641
 --non-interactive --no-wait
Temporary profile extends preview; ios.simulator=true;
EXPO_PUBLIC_SHOWCASE=1; T3_SHOWCASE_CAPTURE_BUILD=1.
Build id: 50432d72-4370-4288-862a-9026a79403ce
Result: ERRORED, no installable artifact, simulator was not started.
The "Run fastlane" step failed because of an error in the Xcode build process. We automatically detected following errors in your Xcode build logs:
- Unable to resolve module dependency: 'GhosttyKit' (in target 'T3TerminalNative' from project 'Pods')
- Unable to resolve module dependency: 'GhosttyKit' (in target 'T3TerminalNative' from project 'Pods')
Refer to "Xcode Logs" below for additional, more detailed logs.

No real-client responsiveness test completed. No reproduction claimed.
No implementation changes or PR created.