diff --git a/.github/workflows/build-check-features-cache.yml b/.github/workflows/build-check-features-cache.yml
new file mode 100644
index 000000000..37230ff81
--- /dev/null
+++ b/.github/workflows/build-check-features-cache.yml
@@ -0,0 +1,79 @@
+name: Build Check Features Cache
+
+permissions:
+  contents: read
+  actions: write
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - "main"
+    paths:
+      - "src/**"
+      - "Cargo.toml"
+      - "Cargo.lock"
+      - "rust-toolchain.toml"
+      - "tests/fixtures/**"
+      - "static/**"
+      - ".sqlx/**"
+
+env:
+  CACHE_CHECK_KEY: check-features-release
+  CACHE_PATH: |
+    ~/.cargo/registry/index/
+    ~/.cargo/registry/cache/
+    ~/.cargo/git/db/
+    target/
+
+jobs:
+  build_check_features_cache:
+    name: Build Check Features cache
+    runs-on: stratus-runner
+    timeout-minutes: 45
+
+    concurrency:
+      group: ${{ github.workflow }}
+      cancel-in-progress: true
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+
+      - name: Set up Rust
+        run: rustup show
+
+      - name: Rust Cache - Restore check-features cache
+        uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: ${{ env.CACHE_PATH }}
+          key: ${{ env.CACHE_CHECK_KEY }}-${{ runner.os }}--${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ env.CACHE_CHECK_KEY }}-${{ runner.os }}--
+
+      - name: Install libsasl2-dev libssl-dev
+        run: sudo apt-get update && sudo apt install -y build-essential pkg-config libssl-dev libsasl2-dev
+
+      - name: Set up dependencies
+        uses: taiki-e/install-action@cfdb446e391c69574ebc316dfb7d7849ec12b940 # v2.68.8
+        with:
+          tool: cargo-hack@0.6.39
+
+      - name: Set up Just
+        uses: extractions/setup-just@dd310ad5a97d8e7b41793f8ef055398d51ad4de6 # v2
+
+      - name: Prime check-features cache
+        # Runs the exact same command (`just check-features`) with the same env as the
+        # PR check-features job, so the `.rmeta` fingerprints produced here are reused
+        # on cache restore. No coverage flags in either side, so RUSTFLAGS matches by
+        # inheritance — do not override it here, that would diverge from the consumer.
+        run: just check-features
+        env:
+          CARGO_PROFILE_RELEASE_DEBUG: 0
+          RUST_LOG: error
+          RELEASE: 1
+
+      - name: Rust Cache - Save check-features cache
+        uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: ${{ env.CACHE_PATH }}
+          key: ${{ env.CACHE_CHECK_KEY }}-${{ runner.os }}--${{ hashFiles('**/Cargo.lock') }}
diff --git a/.github/workflows/build-debug-cache.yml b/.github/workflows/build-debug-cache.yml
index e49afa9ca..183b83e90 100644
--- a/.github/workflows/build-debug-cache.yml
+++ b/.github/workflows/build-debug-cache.yml
@@ -54,7 +54,7 @@ jobs:
       - name: Set up dependencies
         uses: taiki-e/install-action@cfdb446e391c69574ebc316dfb7d7849ec12b940 # v2.68.8
         with:
-          tool: cargo-llvm-cov@0.6.14
+          tool: cargo-llvm-cov@0.6.14 cargo-hack@0.6.39
 
       - name: Build Debug binaries for cache
         # Prime the cache with exactly what consumers need:
@@ -68,6 +68,16 @@ jobs:
           cargo test --no-run
           cargo build --features dev
 
+      - name: Check all features
+        # Prime the cache with `.rmeta` artifacts for every feature combination the
+        # check-features job tests (`cargo hack check --each-feature`), so all 11 runs
+        # hit Fresh on PRs instead of rechecking ~450 crates per combo. Run WITHOUT
+        # coverage flags — check-features doesn't use them, and RUSTFLAGS is part of the
+        # fingerprint, so mismatched flags would force a full recheck.
+        env:
+          RUSTFLAGS: ""
+        run: cargo hack check --each-feature --keep-going
+
       - name: Rust Cache - Save shared key
         uses: actions/cache/save@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
diff --git a/.github/workflows/check-features.yml b/.github/workflows/check-features.yml
index 65ad5fc37..e10870b17 100644
--- a/.github/workflows/check-features.yml
+++ b/.github/workflows/check-features.yml
@@ -23,7 +23,7 @@ on:
   workflow_dispatch:
 
 env:
-  CACHE_SHARED_KEY: stable-release
+  CACHE_CHECK_KEY: check-features-release
   CACHE_PATH: |
     ~/.cargo/registry/index/
     ~/.cargo/registry/cache/
@@ -47,12 +47,12 @@ jobs:
       - name: Set up Rust
         run: rustup show
 
-      - name: Rust Cache - Restore shared key
+      - name: Rust Cache - Restore check-features cache
         uses: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
         with:
           path: ${{ env.CACHE_PATH }}
-          restore-keys: ${{ env.CACHE_SHARED_KEY }}
-          key: ${{ env.CACHE_SHARED_KEY }}
+          key: ${{ env.CACHE_CHECK_KEY }}-${{ runner.os }}--${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ env.CACHE_CHECK_KEY }}-${{ runner.os }}--
 
       - name: Install libsasl2-dev libssl-dev
         run: sudo apt-get update && sudo apt install -y build-essential pkg-config libssl-dev libsasl2-dev