diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..d5ba13c
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,38 @@
+# Lint + test gate on every push/PR to main.
+#
+# The README documents `cargo fmt --check`, `cargo clippy --all-targets
+# -- -D warnings`, and `cargo test` as the quality bar; this job enforces it
+# so nothing lands that doesn't pass its own checks. Releases are handled
+# separately by `release.yml` (tag-triggered).
+
+name: ci
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  check:
+    name: fmt + clippy + test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Format
+        run: cargo fmt --check
+
+      - name: Clippy
+        run: cargo clippy --workspace --all-targets -- -D warnings
+
+      - name: Test
+        run: cargo test --workspace
diff --git a/Cargo.toml b/Cargo.toml
index 406b5f1..997c5ed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,6 @@ tokio = { version = "1", features = [
     "net",
 ] }
 tokio-util = { version = "0.7", features = ["rt"] }
-futures = "0.3"
 async-trait = "0.1"
 
 # Error handling