PR #27039 real dev verification, 2026-10-30, Linux Boat VM
main: 6575ce3250 (github/main)
PR: 2d96946a29d45a6545138e2a673cbb8f82abef85
No product files changed. No mocks, fixture providers, or demo data.

Setup:
  git worktree add ../main github/main
  cd ../main && timeout 600 vp i
  setsid nohup timeout 6500 vp run dev > /tmp/main-dev.log 2>&1 &
  main serverPort=16733 webPort=8693
  Created project /home/user/t3code and parent thread through the web UI.
  Selected Codex gpt-6.1-sol; sent alpha prompt, delegated beta child.
  Read child and parent through Codex's real T3 MCP tools.
  Stopped main using captured process-group leader 27864 before PR startup.
  Checked out exact PR head, timeout 600 vp i.
  Copied stopped, app-created dev state into PR's isolated .t3 directory.
  setsid nohup timeout 6000 vp run dev --home-dir /home/user/t3code/.t3 > /tmp/dev.log 2>&1 &
  PR serverPort=13773 webPort=5733, captured process-group leader 34985.
  Playwright 1.60.0 from repo dependencies, /usr/bin/google-chrome.

Original wasted reads, observed in unmodified main's server.trace.ndjson:
  14:32:10 parentless `t3 thread show --base-dir ... --json <parent>`
    OrchestratorMcpService.readThread descendants: 1 context-transfer SELECT.
  14:32:55 Codex scoped parent self-read, limit=2
    readThread descendants: 1 caller-message SELECT with role filter.
    Page contains original alpha prompt + assistant alpha reply; hasMore=true.
  SQL counts attributed through span parent IDs, not shared startup trace ID.

PR live server:
  14:34:02 parentless CLI read of the copied parent: 0 context-transfer SELECTs.
  Same thread DTO/messages as main, excluding server link and settlement updatedAt.
  Resumed Codex parent conversation, delegated fresh Codex gpt-6.1-sol gamma child.
  Child reply: "child-read verification gamma"; status=completed.
  Parent used t3_thread_wait, then paused to let the CLI read before scoped read.
  No task_status call acknowledged this fresh child.

  14:37:20 parentless CLI read of gamma child:
    0 context-transfer SELECTs.
    Both prompt and provider reply returned.
    Read-only SQLite snapshot before: completionDelivery.state=claimed.
    Read-only SQLite snapshot after:  completionDelivery.state=claimed.

  14:38:09 Codex t3_thread_read(childThreadId, limit=100):
    status=completed, hasMore=false.
    Both prompt and reply match parentless CLI message bodies.
    Scoped transfer queries remain, including acknowledgment reloads.
    After read: completionDelivery.state=acknowledged,
      observedByRunId=run:thread:66e78864-4eac-4b27-96d6-ba33faf47bfd:ordinal:4.
    Acknowledgment reloads intentionally retain ordinary full-loader behavior.

  14:38:15 Codex t3_thread_read(parentThreadId, limit=2):
    0 caller-prompt SELECTs; target timeline still contains user + assistant text.
    positions=[0,2], nextPosition=2, hasMore=true; alpha reply present.
  14:38:19 Codex t3_thread_read(parentThreadId, limit=2, afterPosition=2):
    0 caller-prompt SELECTs.
    positions=[4,5], nextPosition=5, hasMore=true; subsequent beta prompt present.
  Runtime assertions passed for DTO equality, child message equality,
    claimed -> claimed -> acknowledged delivery, and nonoverlapping pagination.
  Clicked the gamma thread link in the real web client and navigated back.

Remote checks via task-owned blacksmith-check worker:
  vp i
  cd apps/server && vp test run src/mcp/OrchestratorMcpService.test.ts
    src/mcp/OrchestratorMcpService.activity.test.ts
    src/mcp/OrchestratorMcpToolkit.integration.test.ts
  PASS: 3 files, 42 tests.
  vp run check:changed (against PR base a1621a81af72)
  PASS: format, lint, knip 1/2, knip 2/2, graphql,
    typecheck (3 packages), test (4 files, 43 tests).
  Snapshot initially lacked ancestry; fetched PR ancestry on worker, rerun passed.
  Hosted PR checks at verification: 33 successful, 0 failing, 0 pending.

Limits:
  Small app-created workload proves avoided queries and preserved behavior.
  No latency, throughput, allocation, or large-history performance claim.
  No native desktop/mobile, other providers, relay/tunnel, or remote environment.
  Copied main state has migration 73 ActiveTurnItemIndexes, newer than PR build;
    PR warned and skipped it. Fresh-schema MCP integration tests also passed.