diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e2a1a32..4b4eb3f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,7 @@ env:
   CARGO_TERM_COLOR: always
 
 jobs:
+  # Lint is platform-independent — run it once on Linux to avoid duplicate noise.
   check:
     runs-on: ubuntu-latest
     steps:
@@ -19,6 +20,19 @@ jobs:
         run: cargo fmt --all --check
       - name: Clippy
         run: cargo clippy --all-targets --all-features -- -D warnings
+
+  # Tests + dogfood on every OS we ship a release binary for (release.yml uses macos-14
+  # for aarch64-apple-darwin), so Darwin path/tree-sitter behavior is exercised pre-release.
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-14]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v6
+      - name: Install toolchain (pinned via rust-toolchain.toml)
+        run: rustup show
       - name: Test
         run: cargo test --all
       - name: Surface self-check (dogfood)
diff --git a/README.md b/README.md
index 8274f26..9de35bc 100644
--- a/README.md
+++ b/README.md
@@ -135,8 +135,9 @@ Or the install script:
 curl --proto '=https' --tlsv1.2 -fsSL https://raw.githubusercontent.com/Connorrmcd6/surface/main/install.sh | sh
 ```
 
-Prebuilt binaries for macOS (Apple Silicon) and Linux (x86_64); build from source elsewhere. Full
-options — pre-commit hook, `cargo install`, the architecture matrix — in
+Prebuilt binaries for macOS (Apple Silicon) and Linux (x86_64); build from source on other
+Unix arches. Windows is **not supported** (the anchor grammar requires forward-slash paths).
+Full options — pre-commit hook, `cargo install`, the architecture matrix — in
 [Install](docs/getting-started/install.md).
 
 ## Documentation
diff --git a/docs/getting-started/install.md b/docs/getting-started/install.md
index 310dae9..37e80e8 100644
--- a/docs/getting-started/install.md
+++ b/docs/getting-started/install.md
@@ -41,7 +41,19 @@ curl --proto '=https' --tlsv1.2 -fsSL https://raw.githubusercontent.com/Connorrm
 ```
 
 Prebuilt binaries are published for **macOS (Apple Silicon)** and **Linux (x86_64)**. On Intel
-macOS, Windows, or other architectures, build from source.
+macOS or other Unix architectures, build from source.
+
+## Platform support
+
+| Platform | Status |
+| --- | --- |
+| macOS (Apple Silicon) | prebuilt binary |
+| Linux (x86_64) | prebuilt binary |
+| Intel macOS, other Unix arches | build from source |
+| Windows | **not supported** |
+
+Windows is unsupported: anchor `at:` paths are forward-slash only, and the install script
+rejects non-Unix systems. Use WSL if you need Surface on a Windows machine.
 
 ## From source