diff --git a/build.mjs b/build.mjs
index c3dd263aa..92f00c79c 100644
--- a/build.mjs
+++ b/build.mjs
@@ -1,20 +1,55 @@
-import { rm } from "node:fs/promises";
+import { copyFile, rm } from "node:fs/promises";
 import { dirname, join } from "node:path";
 import { fileURLToPath } from "node:url";
 
 import * as esbuild from "esbuild";
 import { globSync } from "glob";
-import { copy } from "esbuild-plugin-copy";
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
 
-const OUT_DIR = "lib";
+const SRC_DIR = join(__dirname, "src");
+const OUT_DIR = join(__dirname, "lib");
 
-await rm(join(__dirname, OUT_DIR), { recursive: true, force: true });
+/**
+ * Clean the output directory before building.
+ * 
+ * @type {esbuild.Plugin}
+ */
+const cleanPlugin = {
+  name: "clean",
+  setup(build) {
+    build.onStart(async () => {
+      await rm(OUT_DIR, { recursive: true, force: true });
+    });
+  },
+};
 
-// This will just log when a build ends
-/** @type {esbuild.Plugin} */
+/**
+ * Copy defaults.json to the output directory since other projects depend on it.
+ * 
+ * @type {esbuild.Plugin}
+ */
+const copyDefaultsPlugin = {
+  name: "copy-defaults",
+  setup(build) {
+    build.onEnd(async () => {
+      await rm(join(OUT_DIR, "defaults.json"), {
+        force: true,
+      });
+      await copyFile(
+        join(SRC_DIR, "defaults.json"),
+        join(OUT_DIR, "defaults.json"),
+      );
+    });
+  },
+}
+
+/**
+ * Log when the build ends.
+ *
+ * @type {esbuild.Plugin}
+ */
 const onEndPlugin = {
   name: "on-end",
   setup(build) {
@@ -25,20 +60,13 @@ const onEndPlugin = {
   },
 };
 
-const copyDefaults = copy({
-  assets: {
-    from: ["src/defaults.json"],
-    to: ["defaults.json"],
-  },
-});
-
 const context = await esbuild.context({
-  entryPoints: globSync(["src/*-action.ts", "src/*-action-post.ts"]),
+  entryPoints: globSync([`${SRC_DIR}/*-action.ts`, `${SRC_DIR}/*-action-post.ts`]),
   bundle: true,
   format: "cjs",
   outdir: OUT_DIR,
   platform: "node",
-  plugins: [copyDefaults, onEndPlugin],
+  plugins: [cleanPlugin, copyDefaultsPlugin, onEndPlugin],
 });
 
 await context.rebuild();
diff --git a/lib/analyze-action-post.js b/lib/analyze-action-post.js
index be8b01046..c47f436fa 100644
--- a/lib/analyze-action-post.js
+++ b/lib/analyze-action-post.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/analyze-action.js b/lib/analyze-action.js
index 5431a0a85..98b3386ab 100644
--- a/lib/analyze-action.js
+++ b/lib/analyze-action.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/autobuild-action.js b/lib/autobuild-action.js
index 6f5ab69fc..78142078c 100644
--- a/lib/autobuild-action.js
+++ b/lib/autobuild-action.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/init-action-post.js b/lib/init-action-post.js
index 3a1859f73..b2dc5fe7d 100644
--- a/lib/init-action-post.js
+++ b/lib/init-action-post.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/init-action.js b/lib/init-action.js
index 49e2b4ae6..ec5032e4e 100644
--- a/lib/init-action.js
+++ b/lib/init-action.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/resolve-environment-action.js b/lib/resolve-environment-action.js
index 1c841f724..76d8f0ab9 100644
--- a/lib/resolve-environment-action.js
+++ b/lib/resolve-environment-action.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/start-proxy-action-post.js b/lib/start-proxy-action-post.js
index e2fad828c..ba060abf5 100644
--- a/lib/start-proxy-action-post.js
+++ b/lib/start-proxy-action-post.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/start-proxy-action.js b/lib/start-proxy-action.js
index 7f9aafcbd..725c55ba1 100644
--- a/lib/start-proxy-action.js
+++ b/lib/start-proxy-action.js
@@ -54974,7 +54974,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/upload-sarif-action-post.js b/lib/upload-sarif-action-post.js
index cab4ab1a1..66a0d772b 100644
--- a/lib/upload-sarif-action-post.js
+++ b/lib/upload-sarif-action-post.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/lib/upload-sarif-action.js b/lib/upload-sarif-action.js
index 362a9f1b8..70d52083a 100644
--- a/lib/upload-sarif-action.js
+++ b/lib/upload-sarif-action.js
@@ -36446,7 +36446,6 @@ var require_package = __commonJS({
         "@typescript-eslint/parser": "^8.40.0",
         ava: "^6.4.1",
         esbuild: "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         eslint: "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
diff --git a/package-lock.json b/package-lock.json
index 6419f7335..6cfefa653 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -61,7 +61,6 @@
         "@typescript-eslint/parser": "^8.40.0",
         "ava": "^6.4.1",
         "esbuild": "^0.25.9",
-        "esbuild-plugin-copy": "^2.1.1",
         "eslint": "^8.57.1",
         "eslint-import-resolver-typescript": "^3.8.7",
         "eslint-plugin-filenames": "^1.3.2",
@@ -3492,20 +3491,6 @@
         "url": "https://github.com/chalk/ansi-styles?sponsor=1"
       }
     },
-    "node_modules/anymatch": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
-      "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==",
-      "dev": true,
-      "license": "ISC",
-      "dependencies": {
-        "normalize-path": "^3.0.0",
-        "picomatch": "^2.0.4"
-      },
-      "engines": {
-        "node": ">= 8"
-      }
-    },
     "node_modules/archiver": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/archiver/-/archiver-7.0.1.tgz",
@@ -4088,19 +4073,6 @@
         "node": "*"
       }
     },
-    "node_modules/binary-extensions": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
-      "integrity": "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/bindings": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
@@ -4314,31 +4286,6 @@
         "node": ">=16"
       }
     },
-    "node_modules/chokidar": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
-      "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "anymatch": "~3.1.2",
-        "braces": "~3.0.2",
-        "glob-parent": "~5.1.2",
-        "is-binary-path": "~2.1.0",
-        "is-glob": "~4.0.1",
-        "normalize-path": "~3.0.0",
-        "readdirp": "~3.6.0"
-      },
-      "engines": {
-        "node": ">= 8.10.0"
-      },
-      "funding": {
-        "url": "https://paulmillr.com/funding/"
-      },
-      "optionalDependencies": {
-        "fsevents": "~2.3.2"
-      }
-    },
     "node_modules/chownr": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/chownr/-/chownr-3.0.0.tgz",
@@ -5082,55 +5029,6 @@
         "@esbuild/win32-x64": "0.25.9"
       }
     },
-    "node_modules/esbuild-plugin-copy": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/esbuild-plugin-copy/-/esbuild-plugin-copy-2.1.1.tgz",
-      "integrity": "sha512-Bk66jpevTcV8KMFzZI1P7MZKZ+uDcrZm2G2egZ2jNIvVnivDpodZI+/KnpL3Jnap0PBdIHU7HwFGB8r+vV5CVw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "chalk": "^4.1.2",
-        "chokidar": "^3.5.3",
-        "fs-extra": "^10.0.1",
-        "globby": "^11.0.3"
-      },
-      "peerDependencies": {
-        "esbuild": ">= 0.14.0"
-      }
-    },
-    "node_modules/esbuild-plugin-copy/node_modules/ansi-styles": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
-      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "color-convert": "^2.0.1"
-      },
-      "engines": {
-        "node": ">=8"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
-      }
-    },
-    "node_modules/esbuild-plugin-copy/node_modules/chalk": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
-      "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "ansi-styles": "^4.1.0",
-        "supports-color": "^7.1.0"
-      },
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/chalk?sponsor=1"
-      }
-    },
     "node_modules/escalade": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz",
@@ -6111,40 +6009,10 @@
       "version": "0.0.1-security",
       "license": "ISC"
     },
-    "node_modules/fs-extra": {
-      "version": "10.1.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-10.1.0.tgz",
-      "integrity": "sha512-oRXApq54ETRj4eMiFzGnHWGy+zo5raudjuxN0b8H7s/RU2oW0Wvsx9O0ACRN/kRq9E8Vu/ReskGB5o3ji+FzHQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "graceful-fs": "^4.2.0",
-        "jsonfile": "^6.0.1",
-        "universalify": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/fs.realpath": {
       "version": "1.0.0",
       "license": "ISC"
     },
-    "node_modules/fsevents": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
-      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
-      "dev": true,
-      "hasInstallScript": true,
-      "license": "MIT",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
-      }
-    },
     "node_modules/function-bind": {
       "version": "1.1.2",
       "license": "MIT",
@@ -6664,19 +6532,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/is-binary-path": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
-      "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "binary-extensions": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/is-boolean-object": {
       "version": "1.1.2",
       "dev": true,
@@ -7047,19 +6902,6 @@
         "json5": "lib/cli.js"
       }
     },
-    "node_modules/jsonfile": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.2.0.tgz",
-      "integrity": "sha512-FGuPw30AdOIUTRMC2OMRtQV+jkVj2cfPqSeWXv1NEAJ1qZ5zb1X6z1mFhbfOB/iy3ssJCD+3KuZ8r8C3uVFlAg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "universalify": "^2.0.0"
-      },
-      "optionalDependencies": {
-        "graceful-fs": "^4.1.6"
-      }
-    },
     "node_modules/jsonschema": {
       "version": "1.4.1",
       "license": "MIT",
@@ -8076,19 +7918,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/readdirp": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
-      "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "picomatch": "^2.2.1"
-      },
-      "engines": {
-        "node": ">=8.10.0"
-      }
-    },
     "node_modules/regexp.prototype.flags": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.5.2.tgz",
@@ -9299,16 +9128,6 @@
       "version": "6.0.0",
       "license": "ISC"
     },
-    "node_modules/universalify": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.1.tgz",
-      "integrity": "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 10.0.0"
-      }
-    },
     "node_modules/unzip-stream": {
       "version": "0.3.4",
       "resolved": "https://registry.npmjs.org/unzip-stream/-/unzip-stream-0.3.4.tgz",
diff --git a/package.json b/package.json
index f51f319cd..816ca14f0 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,6 @@
     "@typescript-eslint/parser": "^8.40.0",
     "ava": "^6.4.1",
     "esbuild": "^0.25.9",
-    "esbuild-plugin-copy": "^2.1.1",
     "eslint": "^8.57.1",
     "eslint-import-resolver-typescript": "^3.8.7",
     "eslint-plugin-filenames": "^1.3.2",