OX-02 P14: the real Visual Studio acceptance, and the live jobs in CI

- scripts/vs/prepare_vs_fixture.py: packs Owen.Build/Owen.TypedBuilder and creates a
  restored, never-built solution outside the checkout.
- scripts/vs/owen-vs-acceptance.ps1: installs the VSIX into a dedicated root suffix
  with VSIXInstaller, opens the solution, and drives the IDE: unsaved edits via DTE,
  the Error List read with UI Automation, navigation by double-click, Owen's squiggles
  from the opt-in tagger trace; K1/K2/P9/K3, repeated-edit latency, UI-thread max,
  no save, no build. (Shape ADAPTED from Snipper's vs-smoke.ps1, MIT.)
- ci.yml: owen-live (ubuntu+windows) and owen-visual-studio (windows, real VS).
- The probe workflow is retired (runs 37163037704/37163398893/37163671022 recorded).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011ZFvhLx1fM9Gerg4dKsZcL

Author: claude

.github/workflows/ci.yml

@@ -3487,6 +3487,79 @@ jobs:
       - name: The extension gate (pack, isolated consumer A-H, mutations M1-M7)
         run: python scripts/owen_extension_gate.py
 
+  # OX-02 (docs/notes/owen-visual-studio-preregistration.md): live Owen diagnostics in the IDE.
+  # The extractor run in-process over an overlay is byte-identical to the command line; the
+  # `owen serve` service, as Owen.VisualStudio uses it, answers unsaved edits (K1-K8), agrees
+  # with `dotnet build` on saved sources (P10), stays inside its latency/memory budget, and its
+  # client half survives the service dying (K6). Both platforms: the VSIX host is Windows-only,
+  # the service is not.
+  owen-live:
+    name: Owen live service (in-process extractor, owen serve, build/live parity)
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+        with:
+          python-version: "3.13"
+      - uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4
+        with:
+          dotnet-version: "8.0.x"
+      - uses: dtolnay/rust-toolchain@fa04a1451ff1842e2626ccb99004d0195b455a88 # master, 2026-07-10
+        with:
+          toolchain: stable
+      - name: The extractor as a library (E1-E4)
+        run: python tests/check_extractor_in_process.py
+      - name: The live gate (L0, S, K1-K8, P10, T, C, G)
+        run: python scripts/owen_live_gate.py
+
+  # OX-02 P14: the real Visual Studio run. The hosted image carries Visual Studio with the
+  # extension workload; the VSIX is built with its MSBuild, installed into a dedicated root
+  # suffix, and the IDE is driven (DTE for edits, UI Automation for the Error List, Owen's
+  # opt-in trace for the squiggles) on a solution that is restored and never built.
+  owen-visual-studio:
+    name: Owen.VisualStudio in a real Visual Studio (unsaved edit -> squiggle + Error List)
+    runs-on: windows-latest
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+        with:
+          python-version: "3.13"
+      - uses: dtolnay/rust-toolchain@fa04a1451ff1842e2626ccb99004d0195b455a88 # master, 2026-07-10
+        with:
+          toolchain: stable
+      - name: Build the Rust core
+        shell: bash
+        run: cargo build -p own-cli --release --manifest-path rust/Cargo.toml
+      - name: Prepare the solution (packed Owen.Build + Owen.TypedBuilder; restored, not built)
+        shell: bash
+        run: python scripts/vs/prepare_vs_fixture.py --out "$RUNNER_TEMP/vsfx" --rust-core "$PWD/rust/target/release/own-cli.exe"
+      - name: Build the VSIX
+        shell: powershell
+        run: |
+          $vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
+          $msbuild = & $vswhere -latest -products * -requires Microsoft.Component.MSBuild -find "MSBuild\**\Bin\MSBuild.exe" | Select-Object -First 1
+          & $msbuild frontend\roslyn\Owen.VisualStudio\Owen.VisualStudio.csproj /restore /p:Configuration=Release /p:DeployExtension=false /v:m
+          if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+          Get-ChildItem -Recurse frontend\roslyn\Owen.VisualStudio -Filter *.vsix | ForEach-Object { $_.FullName }
+      - name: The acceptance in Visual Studio
+        shell: powershell
+        run: |
+          $vsix = (Get-ChildItem -Recurse frontend\roslyn\Owen.VisualStudio -Filter Owen.VisualStudio.vsix | Select-Object -First 1).FullName
+          scripts\vs\owen-vs-acceptance.ps1 -Vsix $vsix -Fixture "$env:RUNNER_TEMP\vsfx\fixture.json" -Out "$env:RUNNER_TEMP\vs-evidence"
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        if: always()
+        with:
+          name: owen-visual-studio-evidence
+          path: ${{ runner.temp }}/vs-evidence/
+
   # Alpha gate A (issue #202): the single delightful command, proven end-to-end
   # on a clean runner — install -> check -> findings. Packaging only, no
   # analysis-behaviour change: the underlying project stays OwnSharp.Cli

.github/workflows/owen-vs-probe.yml

@@ -52,10 +52,7 @@ public OwenLiveMonitor(VisualStudioWorkspace workspace, ITableManagerProvider ta
         {
             _workspace = workspace;
             _errorList = new OwenErrorListSource(tables.GetTableManager(StandardTables.ErrorsTable));
-            _engine = new LiveEngine(SnapshotAsync, AnalyzerFor, OwenLog.Write, TimeSpan.FromMilliseconds(250))
-            {
-                IgnoreVersions = Environment.GetEnvironmentVariable("OWEN_LIVE_MUTATION") == "M1",
-            };
+            _engine = new LiveEngine(SnapshotAsync, AnalyzerFor, OwenLog.Write, TimeSpan.FromMilliseconds(250));
             _engine.Published += OnPublished;
             _workspace.WorkspaceChanged += OnWorkspaceChanged;
             OwenLog.Write("Owen live analysis loaded");
@@ -116,7 +113,10 @@ private void OnWorkspaceChanged(object sender, WorkspaceChangeEventArgs e)
         {
             var request = LiveRequestFile.For(key);
             if (LiveRequestFile.TryRead(request) == null)
+            {
+                OwenTrace.Event("no-request", new { key, request });
                 return null;
+            }
             var project = _workspace.CurrentSolution.Projects.FirstOrDefault(
                 p => string.Equals(p.FilePath, key, StringComparison.OrdinalIgnoreCase));
             if (project == null)