PR #32976 real-dev verification, Linux, 2026-11-10

Baseline: github/main 7171fdd7716b05dc1b4be40c26ac78e8bb35f80c, isolated /home/user/main/.t3.
Observed through Chrome/Playwright: local Copilot available; Codex/Claude disabled; Settings > Threads > Text generation reports "No text generation providers available."

PR: exact 44cc9872b23178682ac7f45bf9900a5913466f43, isolated /home/user/t3code/.t3.
Copilot CLI 1.0.108, local ACP executable; default model (the account rejected gpt-6.1-sol and gpt-6-luna as unavailable in Copilot). Coding turns used Codex gpt-6.1-sol.
Explicit Copilot choice persisted after reload. No automatic Copilot selection after disabling Codex.

$ git rev-parse HEAD
44cc9872b23178682ac7f45bf9900a5913466f43

Saved textGenerationModelSelection:
{
  "instanceId": "acpRegistry_copilot_verify",
  "model": "default"
}
Source control override: null (inherits text generation)

Selected server span names and outcomes only (raw trace omitted):
CopilotTextGeneration.runCopilotJson: Success
CopilotTextGeneration.generateThreadTitle: Success
CopilotTextGeneration.runCopilotJson: Success
CopilotTextGeneration.generateThreadTitle: Success
CopilotTextGeneration.runCopilotJson: Success
CopilotTextGeneration.generateCommitMessage: Success
CopilotTextGeneration.runCopilotJson: Success
CopilotTextGeneration.generateBranchName: Success
CopilotTextGeneration.runCopilotJson: Success
CopilotTextGeneration.generateThreadTitle: Success
CodexTextGeneration.generateThreadTitle: Success
CopilotTextGeneration.runCopilotJson: Success
CopilotTextGeneration.generateThreadTitle: Success

$ git -C /home/user/copilot-verification log -2 --format="%h %s"
7afb49e chore: document repository verification purpose
f13f870 chore: initialize verification repository

$ git -C /home/user/copilot-verification branch -v
* master                          7afb49e chore: document repository verification purpose
+ t3/add-copilot-output-checklist 7afb49e chore: document repository verification purpose

Focused existing tests, Blacksmith:
 ✓  root  packages/shared/src/serverSettings.test.ts (46 tests) 11ms
 ✓  root  packages/provider-acp-registry/src/server/driver.test.ts (9 tests) 10ms
 ✓  root  packages/provider-acp-registry/src/server/copilotTextGeneration.test.ts (11 tests) 277ms
 ✓  @t3tools/web (unit)  src/modelSelection.test.ts (42 tests) 12ms
 ✓  t3  src/serverSettings.test.ts (67 tests) 1577ms
 Test Files  5 passed (5)
      Tests  175 passed (175)
   Duration  11.19s (transform 77%, import 9%, tests 8%, setup 5%)

Unverified: native desktop/mobile, macOS/Windows, remote/relay/tunnel, registry installer path, non-default Copilot model selection, PR-text generation/publishing, adversarial tool attempts. No source changes or pushes.