PR #29129 runtime verification
main: 60aec28a9c; PR: 0d2812d219a890a59c9433fcd1ef7466d5f2a5e8
Chrome / Playwright, real Codex gpt-6.1-sol, local proxy.
Created project main through Add project > Local folder. Created nested root/middle/leaf with real Codex T3 delegate_task. No mocks, fixtures or demo data.
GET /api/orchestration/shell, x-t3-orchestration-protocol: 2
main full family rows: ["shell-leaf","shell-middle","Verify Nested Subagent Shell Behavior"]
main omitIdleSubagents=1: ["shell-middle","Verify Nested Subagent Shell Behavior"]
main with omitIdleSubagentParents=1: ["shell-middle","Verify Nested Subagent Shell Behavior"]
PR full family rows: ["shell-middle","shell-leaf","Verify Nested Subagent Shell Behavior"]
PR legacy omission: ["shell-middle","Verify Nested Subagent Shell Behavior"]
PR both flags: ["Verify Nested Subagent Shell Behavior"]
Client WS orchestration.subscribeShell sent omitIdleSubagents:true and omitIdleSubagentParents:true.
Wake leaf through t3 thread send --base-dir <isolated .t3> <leaf> <prompt> --wait --json while browser viewed unrelated Check Workspace Status.
Woken raw shell: ["Verify Nested Subagent Shell Behavior","shell-leaf"]
Woken client merged family: ["Verify Nested Subagent Shell Behavior","shell-leaf","shell-middle"]
Client automatically sent orchestration.getThreadFamily for root.
Reconnect while leaf running: ["shell-middle","Verify Nested Subagent Shell Behavior","shell-leaf"]
Real resumed provider result: {"threadId":"thread:delegated-task:command%3Amcp%3Aa2b4ea18-2800-45a1-9bf6-8b7bd4e31ed8%3Adelegate-task%3A007d7bf3-8f5a-401c-89a4-617465785a29","runId":"run:thread:thread%3Adelegated-task%3Acommand%253Amcp%253Aa2b4ea18-2800-45a1-9bf6-8b7bd4e31ed8%253Adelegate-task%253A007d7bf3-8f5a-401c-89a4-617465785a29:ordinal:2","status":"completed","reply":"WOKEN_LEAF_OK","error":null}
Neighbor: unrelated Codex thread ran pwd + git status and returned NEIGHBOR_OK.
Focused existing tests on Blacksmith: 4 files, 45 tests passed.

Verification found and fixed cold-connect navigation failure in original PR: viewed family was never mounted, root thread links read Thread no longer available and leaf parent was Unknown.
Fix: mount/release the viewed thread family in web and mobile selection, commit c599c38093d39a726e73a44a151cf36e140c2f3f.
Fresh Chrome context after fix: root links resolve both child names; direct leaf cold-open resolves shell-middle; parent navigation works.
Repeated waking leaf with unrelated thread open returned FINAL_WOKEN_LEAF_OK; raw shell had leaf only, merged client restored middle via getThreadFamily.
Final Blacksmith check:changed against PR base 30654b3e91a51937d1dba18fc83af19d8003f5ca: format, lint, knip, graphql, 35 package typechecks, 7 test files/60 tests, React compiler passed.
Native mobile and desktop shells, relay/tunnel, other providers, failed-family-request recovery and latency improvements not verified.