diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index c50d6350381..1fd141ee4a0 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -93,7 +93,8 @@ jobs:
           # trigger on IME source rather than on a spec name in some route's list.
           NATIVE_IME_SOURCE_CHANGED="$(printf '%s\n' "$CHANGED" | node config/scripts/pr-e2e-source-routing.mjs --native-ime-source)"
           echo "native_ime_source_changed=$NATIVE_IME_SOURCE_CHANGED" >> "$GITHUB_OUTPUT"
-          WSL_SOURCE_CHANGED="$(printf '%s\n' "$CHANGED" | node config/scripts/pr-e2e-source-routing.mjs --wsl-source)"
+          WSL_CHANGED="$(git diff --name-only --no-renames --diff-filter=ACDMR --merge-base "$BASE" "$HEAD")"
+          WSL_SOURCE_CHANGED="$(printf '%s\n' "$WSL_CHANGED" | node config/scripts/pr-e2e-source-routing.mjs --wsl-source)"
           echo "wsl_source_changed=$WSL_SOURCE_CHANGED" >> "$GITHUB_OUTPUT"
           echo "Native IME source changed: $NATIVE_IME_SOURCE_CHANGED"
           SHOULD_RUN="$(printf '%s\n' "$CHANGED" | node config/scripts/pr-e2e-source-routing.mjs --reusable-workflow)"
diff --git a/config/reliability-gates.jsonc b/config/reliability-gates.jsonc
index 14605e55717..1153293f77c 100644
--- a/config/reliability-gates.jsonc
+++ b/config/reliability-gates.jsonc
@@ -18159,35 +18159,20 @@
       "protection": "partial",
       "owner": "terminal-runtime",
       "layer": "electron-windows-wsl",
-      "surfaces": [
-        "agent tab launch",
-        "keyboard paste",
-        "terminal runtime retention"
-      ],
-      "platforms": [
-        "windows"
-      ],
-      "providers": [
-        "wsl1",
-        "wsl2"
-      ],
-      "coveredPlatforms": [
-        "windows"
-      ],
-      "coveredProviders": [
-        "wsl1"
-      ],
-      "coverageNotes": "Two Windows CI runs each passed the three WSL1 cases three times. The final per-scenario participation verifier and PR routing still await CI validation. WSL2 remains untested.",
-      "motivatingLinks": [
-        "https://github.com/stablyai/orca/actions/runs/34030832614"
-      ],
+      "surfaces": ["agent tab launch", "keyboard paste", "terminal runtime retention"],
+      "platforms": ["windows"],
+      "providers": ["wsl1", "wsl2"],
+      "coveredPlatforms": ["windows"],
+      "coveredProviders": ["wsl1"],
+      "coverageNotes": "Real WSL1 coverage: three scenarios each passed three times with no skips or retries; exact JSON report verified. Latest PR routing and installer-checksum follow-ups await CI. WSL2 remains untested.",
+      "motivatingLinks": ["https://github.com/stablyai/orca/actions/runs/34030832614"],
       "invariant": "An agent launched into WSL runs in the guest; keyboard paste reaches exactly one owning PTY and preserves Linux content even after the default shell changes.",
       "oracle": "Run the existing real WSL launch and two paste cases three times; require nine passes and zero skipped, unexpected, or flaky results in the Playwright JSON report.",
       "commands": [
-        "gh workflow run windows-terminal-restart-e2e.yml --ref nwparker/validate-reusable-wsl-lane",
         "gh workflow run windows-wsl-e2e.yml",
         "pnpm exec playwright test tests/e2e/golden-tab-bar-agent-launch.spec.ts tests/e2e/terminal-windows-shell-paste-ownership.spec.ts --config tests/playwright.config.ts --project=electron-headless --workers=1",
-        "node_modules/.bin/vitest run --config config/vitest.config.ts config/scripts/wsl-e2e-lane-contract.test.mjs config/scripts/verify-wsl-e2e-participation.test.mjs"
+        "node_modules/.bin/vitest run --config config/vitest.config.ts config/scripts/wsl-e2e-lane-contract.test.mjs config/scripts/verify-wsl-e2e-participation.test.mjs",
+        "gh run view 34031806291 --log"
       ],
       "testFiles": [
         "tests/e2e/golden-tab-bar-agent-launch.spec.ts",
@@ -18198,9 +18183,7 @@
       "assertionRefs": [
         {
           "file": "tests/e2e/golden-tab-bar-agent-launch.spec.ts",
-          "assertions": [
-            "requires a distro-only marker from the launched agent"
-          ]
+          "assertions": ["requires a distro-only marker from the launched agent"]
         },
         {
           "file": "tests/e2e/terminal-windows-shell-paste-ownership.spec.ts",
@@ -18211,9 +18194,7 @@
         },
         {
           "file": "config/scripts/verify-wsl-e2e-participation.test.mjs",
-          "assertions": [
-            "rejects skipped, missing, substituted and retried scenarios"
-          ]
+          "assertions": ["rejects skipped, missing, substituted and retried scenarios"]
         }
       ],
       "evidenceRuns": [
@@ -18222,9 +18203,9 @@
           "runner": "ci",
           "platform": "windows",
           "result": "passed",
-          "command": "gh workflow run windows-terminal-restart-e2e.yml --ref nwparker/validate-reusable-wsl-lane",
-          "durationSeconds": 234,
-          "summary": "Run34030832614 at4de05e5: real WSL1 launch3 and paste6 passed; aggregate receipt required9 expected and0 skipped/unexpected/flaky. Final per-scenario verifier is newer and pending."
+          "command": "gh run view 34031806291 --log",
+          "durationSeconds": 210,
+          "summary": "Immutable run34031806291 at92fc5152: WSL1 launch3 and paste6 passed after reader-readiness correction; named-scenario verifier accepted actual JSON report with0skips0retries. Command retrieves recorded evidence; workflow_dispatch command above reruns current coverage."
         }
       ],
       "runtimeBudget": {
@@ -18233,11 +18214,11 @@
       },
       "flakeHistory": {
         "status": "soaking",
-        "evidence": "Pinned-image run34030695826 and reusable-action run34030832614 each passed9/9 with no skips; final verifier head pending."
+        "evidence": "Initial permanent-lane diagnostic8passed1failed on missing PTY before changing settings. After requiring guest-reader readiness before mutation, run34031806291 passed9/9. Two earlier setup validations also passed9/9. Long-term CI history remains missing."
       },
       "redGreenEvidence": {
         "status": "partial",
-        "evidence": "Verifier tests reject absent or skipped scenarios, substituted titles, and passes after retries. Actual nine-pass report verification on the final verifier head is pending."
+        "evidence": "Verifier rejects actual8pass1fail CI report and accepts actual9pass report. Unit contracts reject skips, missing or substituted scenarios and retried passes. No full application fault-mutation proof."
       },
       "performanceBudget": {
         "required": false,
diff --git a/config/scripts/wsl-e2e-lane-contract.test.mjs b/config/scripts/wsl-e2e-lane-contract.test.mjs
index aaf40e16b18..9882f0ad747 100644
--- a/config/scripts/wsl-e2e-lane-contract.test.mjs
+++ b/config/scripts/wsl-e2e-lane-contract.test.mjs
@@ -40,6 +40,15 @@ describe('real WSL terminal lane', () => {
     const pr = parse(read('.github/workflows/pr.yml'))
     expect(pr.jobs.windows_wsl.if).toBe("needs.code_paths.outputs.wsl_source_changed == 'true'")
     expect(pr.jobs.windows_wsl.with.ref).toBe('${{ github.event.pull_request.head.sha }}')
+    const detector = pr.jobs['code_paths'].steps.find(
+      (step) => step.name === 'Filter changed E2E specs'
+    )
+    expect(detector.run).toContain(
+      'WSL_CHANGED="$(git diff --name-only --no-renames --diff-filter=ACDMR'
+    )
+    expect(detector.run).toContain(
+      '"$WSL_CHANGED" | node config/scripts/pr-e2e-source-routing.mjs --wsl-source'
+    )
     const workflow = parse(read('.github/workflows/windows-wsl-e2e.yml'))
     const steps = workflow.jobs['wsl-terminal'].steps
     expect(steps[0].with.ref).toBe('${{ inputs.ref || github.sha }}')