diff --git a/package-lock.json b/package-lock.json
index 6af1639..a8d430e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,8 @@
       "license": "MIT",
       "dependencies": {
         "@actions/core": "^1.11.1",
-        "@actions/github": "^6.0.1"
+        "@actions/github": "^6.0.1",
+        "@commitlint/lint": "^19.8.1"
       },
       "devDependencies": {
         "@rollup/plugin-commonjs": "^28.0.3",
@@ -68,6 +69,111 @@
       "integrity": "sha512-wi9JjgKLYS7U/z8PPbco+PvTb/nRWjeoFlJ1Qer83k/3C5PHQi28hiVdeE2kHXmIL99mQFawx8qt/JPjZilJ8Q==",
       "license": "MIT"
     },
+    "node_modules/@commitlint/ensure": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/ensure/-/ensure-19.8.1.tgz",
+      "integrity": "sha512-mXDnlJdvDzSObafjYrOSvZBwkD01cqB4gbnnFuVyNpGUM5ijwU/r/6uqUmBXAAOKRfyEjpkGVZxaDsCVnHAgyw==",
+      "license": "MIT",
+      "dependencies": {
+        "@commitlint/types": "^19.8.1",
+        "lodash.camelcase": "^4.3.0",
+        "lodash.kebabcase": "^4.1.1",
+        "lodash.snakecase": "^4.1.1",
+        "lodash.startcase": "^4.4.0",
+        "lodash.upperfirst": "^4.3.1"
+      },
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/is-ignored": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/is-ignored/-/is-ignored-19.8.1.tgz",
+      "integrity": "sha512-AceOhEhekBUQ5dzrVhDDsbMaY5LqtN8s1mqSnT2Kz1ERvVZkNihrs3Sfk1Je/rxRNbXYFzKZSHaPsEJJDJV8dg==",
+      "license": "MIT",
+      "dependencies": {
+        "@commitlint/types": "^19.8.1",
+        "semver": "^7.6.0"
+      },
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/lint": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/lint/-/lint-19.8.1.tgz",
+      "integrity": "sha512-52PFbsl+1EvMuokZXLRlOsdcLHf10isTPlWwoY1FQIidTsTvjKXVXYb7AvtpWkDzRO2ZsqIgPK7bI98x8LRUEw==",
+      "license": "MIT",
+      "dependencies": {
+        "@commitlint/is-ignored": "^19.8.1",
+        "@commitlint/parse": "^19.8.1",
+        "@commitlint/rules": "^19.8.1",
+        "@commitlint/types": "^19.8.1"
+      },
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/message": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/message/-/message-19.8.1.tgz",
+      "integrity": "sha512-+PMLQvjRXiU+Ae0Wc+p99EoGEutzSXFVwQfa3jRNUZLNW5odZAyseb92OSBTKCu+9gGZiJASt76Cj3dLTtcTdg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/parse": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/parse/-/parse-19.8.1.tgz",
+      "integrity": "sha512-mmAHYcMBmAgJDKWdkjIGq50X4yB0pSGpxyOODwYmoexxxiUCy5JJT99t1+PEMK7KtsCtzuWYIAXYAiKR+k+/Jw==",
+      "license": "MIT",
+      "dependencies": {
+        "@commitlint/types": "^19.8.1",
+        "conventional-changelog-angular": "^7.0.0",
+        "conventional-commits-parser": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/rules": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/rules/-/rules-19.8.1.tgz",
+      "integrity": "sha512-Hnlhd9DyvGiGwjfjfToMi1dsnw1EXKGJNLTcsuGORHz6SS9swRgkBsou33MQ2n51/boIDrbsg4tIBbRpEWK2kw==",
+      "license": "MIT",
+      "dependencies": {
+        "@commitlint/ensure": "^19.8.1",
+        "@commitlint/message": "^19.8.1",
+        "@commitlint/to-lines": "^19.8.1",
+        "@commitlint/types": "^19.8.1"
+      },
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/to-lines": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/to-lines/-/to-lines-19.8.1.tgz",
+      "integrity": "sha512-98Mm5inzbWTKuZQr2aW4SReY6WUukdWXuZhrqf1QdKPZBCCsXuG87c+iP0bwtD6DBnmVVQjgp4whoHRVixyPBg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=v18"
+      }
+    },
+    "node_modules/@commitlint/types": {
+      "version": "19.8.1",
+      "resolved": "https://registry.npmjs.org/@commitlint/types/-/types-19.8.1.tgz",
+      "integrity": "sha512-/yCrWGCoA1SVKOks25EGadP9Pnj0oAIHGpl2wH2M2Y46dPM2ueb8wyCVOD7O3WCTkaJ0IkKvzhl1JY7+uCT2Dw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/conventional-commits-parser": "^5.0.0",
+        "chalk": "^5.3.0"
+      },
+      "engines": {
+        "node": ">=v18"
+      }
+    },
     "node_modules/@fastify/busboy": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.1.1.tgz",
@@ -597,6 +703,15 @@
         "win32"
       ]
     },
+    "node_modules/@types/conventional-commits-parser": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@types/conventional-commits-parser/-/conventional-commits-parser-5.0.1.tgz",
+      "integrity": "sha512-7uz5EHdzz2TqoMfV7ee61Egf5y6NkcO4FB/1iCCQnbeiI1F3xzv3vK5dBCXUCLQgGYS+mUeigK1iKQzvED+QnQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/estree": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -604,6 +719,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/node": {
+      "version": "24.0.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.0.1.tgz",
+      "integrity": "sha512-MX4Zioh39chHlDJbKmEgydJDS3tspMP/lnQC67G3SWsTnb9NeYVWOjkxpOSy4oMfPs4StcWHwBrvUb4ybfnuaw==",
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~7.8.0"
+      }
+    },
     "node_modules/@types/resolve": {
       "version": "1.20.2",
       "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.20.2.tgz",
@@ -611,12 +735,30 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/array-ify": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/array-ify/-/array-ify-1.0.0.tgz",
+      "integrity": "sha512-c5AMf34bKdvPhQ7tBGhqkgKNUzMr4WUs+WDtC2ZUGOUncbxKMTvqxYctiseW3+L4bA8ec+GcZ6/A/FW4m8ukng==",
+      "license": "MIT"
+    },
     "node_modules/before-after-hook": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-2.2.3.tgz",
       "integrity": "sha512-NzUnlZexiaH/46WDhANlyR2bXRopNg4F/zuSA3OpZnllCUgRaOF2znDioDWrmbNVsuZk6l9pMquQB38cfBZwkQ==",
       "license": "Apache-2.0"
     },
+    "node_modules/chalk": {
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.4.1.tgz",
+      "integrity": "sha512-zgVZuo2WcZgfUEmsn6eO3kINexW8RAE4maiQ8QNs8CtpPCSyMiYsULR3HQYkm3w8FIA3SberyMJMSldGsW+U3w==",
+      "license": "MIT",
+      "engines": {
+        "node": "^12.17.0 || ^14.13 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
+    },
     "node_modules/commondir": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
@@ -624,6 +766,46 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/compare-func": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/compare-func/-/compare-func-2.0.0.tgz",
+      "integrity": "sha512-zHig5N+tPWARooBnb0Zx1MFcdfpyJrfTJ3Y5L+IFvUm8rM74hHz66z0gw0x4tijh5CorKkKUCnW82R2vmpeCRA==",
+      "license": "MIT",
+      "dependencies": {
+        "array-ify": "^1.0.0",
+        "dot-prop": "^5.1.0"
+      }
+    },
+    "node_modules/conventional-changelog-angular": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/conventional-changelog-angular/-/conventional-changelog-angular-7.0.0.tgz",
+      "integrity": "sha512-ROjNchA9LgfNMTTFSIWPzebCwOGFdgkEq45EnvvrmSLvCtAw0HSmrCs7/ty+wAeYUZyNay0YMUNYFTRL72PkBQ==",
+      "license": "ISC",
+      "dependencies": {
+        "compare-func": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
+    "node_modules/conventional-commits-parser": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/conventional-commits-parser/-/conventional-commits-parser-5.0.0.tgz",
+      "integrity": "sha512-ZPMl0ZJbw74iS9LuX9YIAiW8pfM5p3yh2o/NbXHbkFuZzY5jvdi5jFycEOkmBW5H5I7nA+D6f3UcsCLP2vvSEA==",
+      "license": "MIT",
+      "dependencies": {
+        "is-text-path": "^2.0.0",
+        "JSONStream": "^1.3.5",
+        "meow": "^12.0.1",
+        "split2": "^4.0.0"
+      },
+      "bin": {
+        "conventional-commits-parser": "cli.mjs"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
     "node_modules/deepmerge": {
       "version": "4.3.1",
       "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
@@ -640,6 +822,18 @@
       "integrity": "sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ==",
       "license": "ISC"
     },
+    "node_modules/dot-prop": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-5.3.0.tgz",
+      "integrity": "sha512-QM8q3zDe58hqUqjraQOmzZ1LIH9SWQJTlEKCH4kJ2oQvLZk7RbQXvtDM2XEq3fwkV9CCvvH4LA0AV+ogFsBM2Q==",
+      "license": "MIT",
+      "dependencies": {
+        "is-obj": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/estree-walker": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.2.tgz",
@@ -723,6 +917,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/is-obj": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/is-obj/-/is-obj-2.0.0.tgz",
+      "integrity": "sha512-drqDG3cbczxxEJRoOXcOjtdp1J/lyp1mNn0xaznRs8+muBhgQcrnbspox5X5fOw0HnMnbfDzvnEMEtqDEJEo8w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/is-reference": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/is-reference/-/is-reference-1.2.1.tgz",
@@ -733,6 +936,73 @@
         "@types/estree": "*"
       }
     },
+    "node_modules/is-text-path": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/is-text-path/-/is-text-path-2.0.0.tgz",
+      "integrity": "sha512-+oDTluR6WEjdXEJMnC2z6A4FRwFoYuvShVVEGsS7ewc0UTi2QtAKMDJuL4BDEVt+5T7MjFo12RP8ghOM75oKJw==",
+      "license": "MIT",
+      "dependencies": {
+        "text-extensions": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/jsonparse": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-1.3.1.tgz",
+      "integrity": "sha512-POQXvpdL69+CluYsillJ7SUhKvytYjW9vG/GKpnf+xP8UWgYEM/RaMzHHofbALDiKbbP1W8UEYmgGl39WkPZsg==",
+      "engines": [
+        "node >= 0.2.0"
+      ],
+      "license": "MIT"
+    },
+    "node_modules/JSONStream": {
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.5.tgz",
+      "integrity": "sha512-E+iruNOY8VV9s4JEbe1aNEm6MiszPRr/UfcHMz0TQh1BXSxHK+ASV1R6W4HpjBhSeS+54PIsAMCBmwD06LLsqQ==",
+      "license": "(MIT OR Apache-2.0)",
+      "dependencies": {
+        "jsonparse": "^1.2.0",
+        "through": ">=2.2.7 <3"
+      },
+      "bin": {
+        "JSONStream": "bin.js"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
+    "node_modules/lodash.camelcase": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz",
+      "integrity": "sha512-TwuEnCnxbc3rAvhf/LbG7tJUDzhqXyFnv3dtzLOPgCG/hODL7WFnsbwktkD7yUV0RrreP/l1PALq/YSg6VvjlA==",
+      "license": "MIT"
+    },
+    "node_modules/lodash.kebabcase": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/lodash.kebabcase/-/lodash.kebabcase-4.1.1.tgz",
+      "integrity": "sha512-N8XRTIMMqqDgSy4VLKPnJ/+hpGZN+PHQiJnSenYqPaVV/NCqEogTnAdZLQiGKhxX+JCs8waWq2t1XHWKOmlY8g==",
+      "license": "MIT"
+    },
+    "node_modules/lodash.snakecase": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/lodash.snakecase/-/lodash.snakecase-4.1.1.tgz",
+      "integrity": "sha512-QZ1d4xoBHYUeuouhEq3lk3Uq7ldgyFXGBhg04+oRLnIz8o9T65Eh+8YdroUwn846zchkA9yDsDl5CVVaV2nqYw==",
+      "license": "MIT"
+    },
+    "node_modules/lodash.startcase": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/lodash.startcase/-/lodash.startcase-4.4.0.tgz",
+      "integrity": "sha512-+WKqsK294HMSc2jEbNgpHpd0JfIBhp7rEV4aqXWqFr6AlXov+SlcgB1Fv01y2kGe3Gc8nMW7VA0SrGuSkRfIEg==",
+      "license": "MIT"
+    },
+    "node_modules/lodash.upperfirst": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/lodash.upperfirst/-/lodash.upperfirst-4.3.1.tgz",
+      "integrity": "sha512-sReKOYJIJf74dhJONhU4e0/shzi1trVbSWDOhKYE5XV2O+H7Sb2Dihwuc7xWxVl+DgFPyTqIN3zMfT9cq5iWDg==",
+      "license": "MIT"
+    },
     "node_modules/magic-string": {
       "version": "0.30.17",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.17.tgz",
@@ -743,6 +1013,18 @@
         "@jridgewell/sourcemap-codec": "^1.5.0"
       }
     },
+    "node_modules/meow": {
+      "version": "12.1.1",
+      "resolved": "https://registry.npmjs.org/meow/-/meow-12.1.1.tgz",
+      "integrity": "sha512-BhXM0Au22RwUneMPwSCnyhTOizdWoIEPU9sp0Aqa1PnDMR5Wv2FGXYDjuzJEIX+Eo2Rb8xuYe5jrnm5QowQFkw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=16.10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -840,6 +1122,27 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/semver": {
+      "version": "7.7.2",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
+      "integrity": "sha512-RF0Fw+rO5AMf9MAyaRXI4AV0Ulj5lMHqVxxdSgiVbixSCXoEmmX/jk0CuJw4+3SqroYO9VoUh+HcuJivvtJemA==",
+      "license": "ISC",
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/split2": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
+      "integrity": "sha512-UcjcJOWknrNkF6PLX83qcHM6KHgVKNkV62Y8a5uYDVv9ydGQVwAHMKqHdJje1VTWpljG0WYpCDhrCdAOYH4TWg==",
+      "license": "ISC",
+      "engines": {
+        "node": ">= 10.x"
+      }
+    },
     "node_modules/supports-preserve-symlinks-flag": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
@@ -853,6 +1156,24 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/text-extensions": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/text-extensions/-/text-extensions-2.4.0.tgz",
+      "integrity": "sha512-te/NtwBwfiNRLf9Ijqx3T0nlqZiQ2XrrtBvu+cLL8ZRrGkO0NHTug8MYFKyoSrv/sHTaSKfilUkizV6XhxMJ3g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/through": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==",
+      "license": "MIT"
+    },
     "node_modules/tunnel": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
@@ -874,6 +1195,12 @@
         "node": ">=14.0"
       }
     },
+    "node_modules/undici-types": {
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.8.0.tgz",
+      "integrity": "sha512-9UJ2xGDvQ43tYyVMpuHlsgApydB8ZKfVYTsLDhXkFL/6gfkp+U8xTGdh8pMJv1SpZna0zxG1DwsKZsreLbXBxw==",
+      "license": "MIT"
+    },
     "node_modules/universal-user-agent": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-6.0.1.tgz",
diff --git a/package.json b/package.json
index 97b736c..0291277 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,8 @@
   "license": "MIT",
   "dependencies": {
     "@actions/core": "^1.11.1",
-    "@actions/github": "^6.0.1"
+    "@actions/github": "^6.0.1",
+    "@commitlint/lint": "^19.8.1"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^28.0.3",
diff --git a/src/index.js b/src/index.js
index e930872..8169e8e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,9 +1,10 @@
 import * as core from "@actions/core";
 import * as github from "@actions/github";
+import lint from "@commitlint/lint";
 
 try {
-  const payload = JSON.stringify(github.context.payload);
-  core.info(`The event payload: ${payload}`);
+  const commits = github.context.payload.commits;
+  core.info(commits.map((commit) => lint(commit.message)));
 } catch (error) {
   core.setFailed(error.message);
 }