diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 244cf12..290b9ff 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,8 +1,11 @@
 # .github/workflows/ci.yaml
-# Lints and tests sibyl every time a commit is pushed to the remote repository.
+# Lints and tests sibyl on pushes to main and on all pull requests.
 
 name: CI
-on: [push, pull_request]
+on:
+  push:
+    branches: [main]
+  pull_request:
 jobs:
   ci:
     name: CI
@@ -21,5 +24,10 @@ jobs:
         run: pnpm install
       - name: Lint
         run: pnpm lint
-      - name: Test
-        run: pnpm test
+      - name: Test with Coverage
+        run: pnpm test:coverage
+      - name: Upload coverage results to Codecov
+        uses: codecov/codecov-action@04b047e8bb82a0c002c8312c1c880fbc6a999d45
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          slug: postapsis/sibyl
diff --git a/README.md b/README.md
index df449ca..1986f6e 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 [![POST/APSIS Sibly Page](https://img.shields.io/badge/made_by-POST%2FAPSIS-%23000000)](https://postapsis.com/sibyl)
 [![sibyl License Page](https://img.shields.io/badge/license-Apache_2.0-brightgreen)](https://raw.githubusercontent.com/postapsis/sibyl/refs/heads/main/LICENSE)
+[![sibyl CI Status](https://github.com/postapsis/sibyl/actions/workflows/ci.yaml/badge.svg)](https://github.com/postapsis/sibyl/actions/workflows/ci.yaml)
+[![codecov](https://codecov.io/gh/postapsis/sibyl/branch/main/graph/badge.svg)](https://codecov.io/gh/postapsis/sibyl)
 <br/>
 
 ---
diff --git a/vitest.config.ts b/vitest.config.ts
index 78a2eac..2ea817a 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -12,7 +12,7 @@ export default defineConfig({
       provider: "v8",
       include: ["src/**/*.ts"],
       exclude: ["src/@types/**/*.ts", "src/exit.ts"],
-      reporter: ["text", "html"],
+      reporter: ["text", "html", "lcov"],
     },
   },
 });