Address PR integration skill review

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: b88f4443-0b18-4d44-ae20-dde46ff2eea8

Author: vanzue

.github/actions/spelling/expect/expect.txt

@@ -525,6 +525,7 @@ EOK
 EPres
 EQU
 ERASEBKGND
+EReport
 ERRORONEXIT
 espt
 esrp
@@ -816,6 +817,7 @@ INVALIDARG
 INVALIDATERECT
 ipch
 ipsp
+ITE
 iterm
 itermcolors
 itf

.github/skills/pr-integration-test/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: pr-integration-test
-description: 'Design, implement, and validate Intelligent Terminal integration tests for a target pull request or regression. Use when asked to add PR integration tests, convert a bug fix into E2E coverage, prove existing behavior still works, map tests to the release checklist, or verify Invoke-ItE2EReport marks checklist cases complete.'
+description: 'Design, implement, and validate Intelligent Terminal integration tests for a target pull request or regression. Use when asked to add PR integration tests, convert a bug fix into E2E coverage, prove existing behavior still works, map tests to the release checklist, or verify E2E reports mark checklist cases complete.'
 ---
 
 # PR Integration Test
@@ -86,8 +86,8 @@ single-flight regressions depend on model wording.
   only when an exact test name would be misleading or one case intentionally
   covers multiple checklist items.
 - Run `pwsh -File test/e2e/Set-ChecklistIds.ps1`; never assign or renumber
-  `Cnnn` IDs manually.
-- Run the suite through `Invoke-ItE2EReport.ps1`, not only `Invoke-Pester`, and
+  stable checklist IDs manually.
+- Run the suite through the E2E report driver, not only `Invoke-Pester`, and
   inspect `release-report.md` to prove every new ID is `[x]`.
 - Verify `Update-ReleaseReport.ps1` too when the suite is expected to support
   partial release-signoff runs.
@@ -100,7 +100,7 @@ Do not call the work complete until all of these are true:
   verified pre-fix symptom.
 - The fixed path passes through the real integration boundary.
 - False-positive and replay/idempotency risks are covered where applicable.
-- Related pre-existing suites pass, or every skip/failure is explicitly
+- Related preexisting suites pass, or every skip/failure is explicitly
   classified as environment, model variance, product regression, or test bug.
 - New checklist IDs become `[x]` through both applicable report paths.
 - The deployed package or executable under test is proven to contain the target

.github/skills/pr-integration-test/references/workflow.md

@@ -61,7 +61,7 @@ code, issue reproduction, logs/events, and live behavior when available.
 Search before adding helpers:
 
 ```powershell
-git grep -n -E "<feature|event|setting|command>" -- test/e2e tools/wta/src src/cascadia
+git grep -n -E "<pattern>" -- test/e2e tools/wta/src src/cascadia
 ```
 
 Read:
@@ -92,7 +92,7 @@ Start with the regression, then add only risk-driven controls:
 
 1. **Regression positive:** the exact old failure now reaches the intended final
    effect.
-2. **Ordinary baseline:** the pre-existing successful or failure path still
+2. **Ordinary baseline:** the preexisting successful or failure path still
    works.
 3. **False-positive control:** a similar but legitimate case remains ignored.
 4. **Replay/idempotency:** redraw, retry, duplicate event, or repeated command