diff --git a/.github/actions/report-pr/action.yml b/.github/actions/report-pr/action.yml
index acb377d..a01e3e7 100644
--- a/.github/actions/report-pr/action.yml
+++ b/.github/actions/report-pr/action.yml
@@ -18,7 +18,7 @@ runs:
         badge: true
         fail_below_min: false
         format: markdown
-        hide_branch_rate: false
+        hide_branch_rate: true
         hide_complexity: true
         indicators: true
         output: both
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 6da8729..00a2959 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -1,6 +1,14 @@
 name: Test PR
 "on": pull_request
 
+permissions:
+  contents: read
+  pull-requests: write
+
+env:
+  # kcov/kcov:latest, pinned for reproducible builds
+  KCOV_IMAGE: kcov/kcov@sha256:481289ae32e55e5b733019515acd10948a4f76dfed381765577db909664fc603
+
 jobs:
   install-and-test:
     name: 🛠️ Install & Test
@@ -30,6 +38,27 @@ jobs:
       - name: ✅ Validate
         run: yarn validate
 
+      - name: 🛠️ Build coverage tests
+        run: yarn coverage:build
+
+      - name: 🧪 Generate coverage
+        run: |
+          docker run --rm \
+            --cap-add=SYS_PTRACE \
+            --security-opt seccomp=unconfined \
+            --volume "$PWD:$PWD" \
+            --workdir "$PWD" \
+            --user "$(id -u):$(id -g)" \
+            --entrypoint /bin/sh \
+            "$KCOV_IMAGE" \
+            "$PWD/scripts/coverage.sh"
+
+      - name: 📊 Report coverage
+        if: github.event.pull_request.head.repo.full_name == github.repository
+        uses: ./.github/actions/report-pr
+        with:
+          coverage-file: coverage/merged/kcov-merged/cobertura.xml
+
       - name: 🛠️ Setup package
         run: yarn script:package-npm
 
diff --git a/.gitignore b/.gitignore
index 2e2a086..bc8f9e3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,7 @@ Thumbs.db
 
 # Temp files
 version-info.ts
+coverage
 dist
 tmp
 src/package.json
diff --git a/README.md b/README.md
index 9ad86fe..fe593d4 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ yarn add package-version-info --dev
 ### 2. Generate the file
 
 ```bash
-npx package-version-info generate --output src/version-info.ts
+npx package-version-info --output src/version-info.ts
 ```
 
 ```text
@@ -91,18 +91,12 @@ The `author` property is omitted when `package.json` has no object-style author
 
 ## 🧭 CLI reference
 
-Running the CLI without arguments displays help:
+Running the CLI without arguments generates `version-info.ts` from `package.json`:
 
 ```bash
 npx package-version-info
 ```
 
-### Commands
-
-| Command | Description |
-| --- | --- |
-| `generate` | Generate the TypeScript version information file. |
-
 ### Options
 
 | Option | Alias | Default | Description |
@@ -118,30 +112,24 @@ npx package-version-info
 
 ```bash
 # Generate with default paths
-npx package-version-info generate
+npx package-version-info
 
 # Show detailed progress
-npx package-version-info generate --verbose
+npx package-version-info --verbose
 
 # Use custom paths
-npx package-version-info generate \
+npx package-version-info \
   --input package.json \
   --output src/generated/version-info.ts \
   --git .git
 
 # Short aliases
-npx package-version-info generate \
+npx package-version-info \
   -i package.json \
   -o src/generated/version-info.ts \
   -g .git
 ```
 
-Flag-only generation remains supported for existing scripts:
-
-```bash
-npx package-version-info --output src/version-info.ts
-```
-
 ## 🎨 Compact and verbose logging
 
 Compact mode is designed for normal builds:
@@ -153,7 +141,7 @@ Compact mode is designed for normal builds:
 Use verbose mode when diagnosing package, author, timestamp, Git, or output-path behavior:
 
 ```bash
-npx package-version-info generate --verbose
+npx package-version-info --verbose
 ```
 
 ## 🛠️ Build-tool integration
@@ -163,7 +151,7 @@ Generate version information automatically before your application build:
 ```json
 {
   "scripts": {
-    "version-info": "package-version-info generate --output src/version-info.ts",
+    "version-info": "package-version-info --output src/version-info.ts",
     "prebuild": "npm run version-info",
     "build": "tsc"
   }
@@ -186,7 +174,7 @@ Requirements:
 zig build
 
 # Run the CLI
-zig build run -- generate
+zig build run
 
 # Run all formatting, build, and test checks
 yarn validate
diff --git a/build.zig b/build.zig
index ae0f5f3..84a3ca0 100644
--- a/build.zig
+++ b/build.zig
@@ -43,4 +43,25 @@ pub fn build(b: *std.Build) void {
     const test_step = b.step("test", "Run tests");
     test_step.dependOn(&b.addRunArtifact(mod_tests).step);
     test_step.dependOn(&b.addRunArtifact(cli_tests).step);
+
+    const mod_coverage_tests = b.addTest(.{
+        .name = "root-coverage",
+        .root_module = mod,
+        .use_llvm = true,
+    });
+    const cli_coverage_tests = b.addTest(.{
+        .name = "cli-coverage",
+        .root_module = cli_mod,
+        .use_llvm = true,
+    });
+    const install_mod_coverage_tests = b.addInstallArtifact(mod_coverage_tests, .{
+        .dest_dir = .{ .override = .{ .custom = "coverage-tests" } },
+    });
+    const install_cli_coverage_tests = b.addInstallArtifact(cli_coverage_tests, .{
+        .dest_dir = .{ .override = .{ .custom = "coverage-tests" } },
+    });
+
+    const coverage_step = b.step("coverage", "Build test executables for code coverage");
+    coverage_step.dependOn(&install_mod_coverage_tests.step);
+    coverage_step.dependOn(&install_cli_coverage_tests.step);
 }
diff --git a/docs/assets/terminal-demo.gif b/docs/assets/terminal-demo.gif
index aa27026..3852527 100644
Binary files a/docs/assets/terminal-demo.gif and b/docs/assets/terminal-demo.gif differ
diff --git a/docs/terminal-demo.tape b/docs/terminal-demo.tape
index 0d80e4b..d38154e 100644
--- a/docs/terminal-demo.tape
+++ b/docs/terminal-demo.tape
@@ -34,7 +34,7 @@ Sleep 3s
 Ctrl+L
 Sleep 500ms
 
-Type "package-version-info generate --output generated/version-info.ts"
+Type "package-version-info --output generated/version-info.ts"
 Enter
 Sleep 2s
 
diff --git a/package.json b/package.json
index 12195f4..6b14564 100644
--- a/package.json
+++ b/package.json
@@ -13,8 +13,9 @@
     "validate": "yarn format:check && yarn build && yarn test",
     "format:check": "zig fmt --check src/root.zig src/main.zig src/cli.zig build.zig",
     "build": "zig build",
-    "start": "zig build run -- generate",
+    "start": "zig build run",
     "test": "zig build test",
+    "coverage:build": "rimraf coverage zig-out/coverage-tests && zig build coverage",
     "clean": "rimraf zig-out dist",
     "prepare": "husky",
     "copy-files": "copyfiles -u 2 zig-out/bin/version_info dist/bin && copyfiles README.md LICENSE dist",
diff --git a/scripts/coverage.sh b/scripts/coverage.sh
new file mode 100644
index 0000000..d7de1b9
--- /dev/null
+++ b/scripts/coverage.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+set -eu
+
+workspace=$(pwd)
+coverage_dir="$workspace/coverage"
+tests_dir="$workspace/zig-out/coverage-tests"
+
+rm -rf "$coverage_dir"
+mkdir -p "$coverage_dir/root" "$coverage_dir/cli" "$coverage_dir/merged"
+
+kcov \
+  --include-path="$workspace/src" \
+  "$coverage_dir/root" \
+  "$tests_dir/root-coverage"
+
+kcov \
+  --include-path="$workspace/src" \
+  "$coverage_dir/cli" \
+  "$tests_dir/cli-coverage"
+
+kcov \
+  --merge \
+  "$coverage_dir/merged" \
+  "$coverage_dir/root" \
+  "$coverage_dir/cli"
+
+sed -i \
+  's/ branch-rate="[^"]*" branches-covered="[^"]*" branches-rate="[^"]*"/ branch-rate="0" branches-covered="0" branches-valid="0"/' \
+  "$coverage_dir/merged/kcov-merged/cobertura.xml"
diff --git a/src/cli.zig b/src/cli.zig
index 288f263..b1a3b76 100644
--- a/src/cli.zig
+++ b/src/cli.zig
@@ -29,50 +29,39 @@ pub const Action = union(enum) {
 
 pub fn parse(args: anytype) Action {
     var options: GenerateOptions = .{};
-    var generate = false;
 
     while (args.next()) |arg| {
         if (std.mem.eql(u8, arg, "--help") or std.mem.eql(u8, arg, "-h")) {
             return .help;
         } else if (std.mem.eql(u8, arg, "--version") or std.mem.eql(u8, arg, "-v")) {
             return .version;
-        } else if (std.mem.eql(u8, arg, "generate")) {
-            generate = true;
         } else if (std.mem.eql(u8, arg, "--verbose")) {
             options.verbose = true;
-            generate = true;
         } else if (std.mem.eql(u8, arg, "--input") or std.mem.eql(u8, arg, "-i")) {
             const value = args.next() orelse return .{ .invalid = .{ .missing_value = arg } };
             if (std.mem.startsWith(u8, value, "-")) return .{ .invalid = .{ .missing_value = arg } };
             options.input_path = value;
-            generate = true;
         } else if (std.mem.eql(u8, arg, "--output") or std.mem.eql(u8, arg, "-o")) {
             const value = args.next() orelse return .{ .invalid = .{ .missing_value = arg } };
             if (std.mem.startsWith(u8, value, "-")) return .{ .invalid = .{ .missing_value = arg } };
             options.output_path = value;
-            generate = true;
         } else if (std.mem.eql(u8, arg, "--git") or std.mem.eql(u8, arg, "-g")) {
             const value = args.next() orelse return .{ .invalid = .{ .missing_value = arg } };
             if (std.mem.startsWith(u8, value, "-")) return .{ .invalid = .{ .missing_value = arg } };
             options.git_path = value;
-            generate = true;
         } else {
             return .{ .invalid = .{ .unknown = arg } };
         }
     }
 
-    return if (generate) .{ .generate = options } else .help;
+    return .{ .generate = options };
 }
 
 pub fn writeHelp(writer: anytype) !void {
     try writer.writeAll(
         color.bright_cyan ++ "Package Version Info" ++ color.reset ++
             "\n\n" ++ color.yellow ++ "Usage:" ++ color.reset ++
-            "\n  package-version-info generate [options]" ++
-            "\n  package-version-info [generation options]" ++
-            "\n\n" ++ color.yellow ++ "Commands:" ++ color.reset ++
-            "\n  " ++ color.green ++ "generate" ++ color.reset ++
-            "                       Generate TypeScript version information." ++
+            "\n  package-version-info [options]" ++
             "\n\n" ++ color.yellow ++ "Options:" ++ color.reset ++
             "\n  " ++ color.green ++ "-h, --help" ++ color.reset ++
             "                     Display usage information." ++
@@ -119,11 +108,17 @@ fn parseTest(args: []const []const u8) Action {
     return parse(&iterator);
 }
 
-test "no arguments and help flags show help" {
-    try std.testing.expectEqual(.help, std.meta.activeTag(parseTest(&.{})));
+test "no arguments generate with default paths" {
+    const options = parseTest(&.{}).generate;
+    try std.testing.expectEqualStrings("package.json", options.input_path);
+    try std.testing.expectEqualStrings("version-info.ts", options.output_path);
+    try std.testing.expectEqualStrings(".git", options.git_path);
+    try std.testing.expect(!options.verbose);
+}
+
+test "help flags show help" {
     try std.testing.expectEqual(.help, std.meta.activeTag(parseTest(&.{"-h"})));
     try std.testing.expectEqual(.help, std.meta.activeTag(parseTest(&.{"--help"})));
-    try std.testing.expectEqual(.help, std.meta.activeTag(parseTest(&.{ "generate", "--help" })));
 }
 
 test "version flags show version" {
@@ -131,16 +126,7 @@ test "version flags show version" {
     try std.testing.expectEqual(.version, std.meta.activeTag(parseTest(&.{"--version"})));
 }
 
-test "generate command uses default paths" {
-    const action = parseTest(&.{"generate"});
-    const options = action.generate;
-    try std.testing.expectEqualStrings("package.json", options.input_path);
-    try std.testing.expectEqualStrings("version-info.ts", options.output_path);
-    try std.testing.expectEqualStrings(".git", options.git_path);
-    try std.testing.expect(!options.verbose);
-}
-
-test "legacy generation options remain supported" {
+test "generation options are parsed" {
     const action = parseTest(&.{
         "--verbose",
         "--input",
@@ -157,18 +143,18 @@ test "legacy generation options remain supported" {
     try std.testing.expect(options.verbose);
 }
 
-test "verbose triggers generation with or without command" {
-    const legacy = parseTest(&.{"--verbose"}).generate;
-    try std.testing.expect(legacy.verbose);
-    try std.testing.expectEqualStrings("package.json", legacy.input_path);
-
-    const command = parseTest(&.{ "generate", "--verbose" }).generate;
-    try std.testing.expect(command.verbose);
+test "verbose enables detailed generation progress" {
+    const options = parseTest(&.{"--verbose"}).generate;
+    try std.testing.expect(options.verbose);
+    try std.testing.expectEqualStrings("package.json", options.input_path);
 }
 
 test "unknown argument is invalid" {
     const action = parseTest(&.{"--unknown"});
     try std.testing.expectEqualStrings("--unknown", action.invalid.unknown);
+
+    const removed_command = parseTest(&.{"generate"});
+    try std.testing.expectEqualStrings("generate", removed_command.invalid.unknown);
 }
 
 test "options require values" {
@@ -188,8 +174,9 @@ test "help contains usage commands and options" {
     try writeHelp(&output.writer);
     const help = output.writer.buffered();
     try std.testing.expect(std.mem.indexOf(u8, help, "Usage:") != null);
-    try std.testing.expect(std.mem.indexOf(u8, help, "Commands:") != null);
     try std.testing.expect(std.mem.indexOf(u8, help, "Options:") != null);
+    try std.testing.expect(std.mem.indexOf(u8, help, "Commands:") == null);
+    try std.testing.expect(std.mem.indexOf(u8, help, " generate") == null);
     try std.testing.expect(std.mem.indexOf(u8, help, "--help") != null);
     try std.testing.expect(std.mem.indexOf(u8, help, "--verbose") != null);
 }