diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 214b6c59..120bc95a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -83,6 +83,27 @@ jobs:
         run: python -m pip install openpyxl==3.1.5
       - run: python -m unittest discover -s tests -t . -v
 
+  python-tests-windows:
+    # Linux-green says nothing about Windows file locking, console encodings or
+    # path handling, and many users run Windows: #480 and #486 passed every Linux
+    # leg and failed there. The suite runs under Git Bash, the shell Claude Code
+    # uses for its Bash tool on Windows, with stdout left at the Windows default
+    # encoding, so a cp1252 crash shows up here the way it does for a user.
+    name: Python tool tests (Windows, Python 3.14)
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+        with:
+          python-version: "3.14"
+      - name: Install Excel integration test dependency
+        run: python -m pip install openpyxl==3.1.5
+      - name: Run the suite under Git Bash
+        shell: bash
+        run: python -m unittest discover -s tests -t . -v
+
   dependency-review:
     name: Dependency review
     # Requires the repo's Dependency graph, which not every repo (upstream or
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44a921ab..3324f2c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,16 @@ per-file diff commands.
 
 ## [Unreleased]
 
+### Added
+
+- **CI runs the Python suite on Windows** (`.github/workflows/ci.yml` `python-tests-windows`) - every
+  job ran on Ubuntu, so a Windows-only failure reached master with all checks green: #480's test
+  (an atomic rename that Windows file locking refuses) and #486's (a tool printing non-ASCII JSON
+  to a piped cp1252 stdout) both passed every Linux leg and failed on Windows 11. The new job runs
+  the full suite on `windows-latest` with Python 3.14 under Git Bash, the shell Claude Code uses
+  on Windows, and leaves stdout at the Windows default encoding so the same failures show up in
+  CI. The five Linux legs keep their names, so required checks are unchanged.
+
 ### Changed
 
 - **`freehire-search` documents the `OR` and `title:` query operators** (#674,