diff --git a/.cspell/custom-dictionary.txt b/.cspell/custom-dictionary.txt
new file mode 100644
index 0000000..f3ce068
--- /dev/null
+++ b/.cspell/custom-dictionary.txt
@@ -0,0 +1,19 @@
+# Common collection / Ansible domain-specific words
+# Only terms NOT covered by built-in dictionaries
+
+# Product names and projects
+Infinispan
+Wildfly
+RHBK
+rhbk
+JBOSSNETWORK
+
+# Ansible terms
+fqcn
+FQCN
+
+# CI / DevOps
+sangonzal
+
+# RST / Sphinx directives
+toctree
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 06e2c3a..2ca2631 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,18 @@ on:
     - cron: '18 6 * * *'
 
 jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v7
+
+      - name: Run cspell
+        uses: streetsidesoftware/cspell-action@v9
+        with:
+          incremental_files_only: false
+          use_cspell_files: true
+
   ci:
     uses: ansible-middleware/github-actions/.github/workflows/ci.yml@main
     secrets: inherit
diff --git a/cspell.json b/cspell.json
new file mode 100644
index 0000000..8985c1b
--- /dev/null
+++ b/cspell.json
@@ -0,0 +1,51 @@
+{
+  "$schema": "https://raw.githubusercontent.com/streetsidesoftware/cspell/main/cspell.schema.json",
+  "version": "0.2",
+  "language": "en",
+  "ignorePaths": ["changelogs/**", "CHANGELOG.rst"],
+  "files": [
+    "**/*.md",
+    "**/*.rst",
+    "molecule/**/*.yml",
+    "meta/runtime.yml",
+    "meta/execution-environment.yml",
+    ".github/workflows/*.yml",
+    ".github/ISSUE_TEMPLATE/*.md",
+    "galaxy.yml"
+  ],
+  "dictionaries": [
+    "custom-common",
+    "java",
+    "bash",
+    "shellscript",
+    "fullstack",
+    "softwareTerms",
+    "software-tools",
+    "cpp-compound-words",
+    "python",
+    "docker",
+    "k8s",
+    "html",
+    "css",
+    "git",
+    "networking-terms",
+    "node",
+    "npm"
+  ],
+  "dictionaryDefinitions": [
+    {
+      "name": "custom-common",
+      "path": ".cspell/custom-dictionary.txt",
+      "addWords": true
+    }
+  ],
+  "ignoreRegExpList": [
+    "/\\{\\{.*?\\}\\}/g",
+    "/`[^`]+`/g",
+    "/(https?:\\/\\/[^\\s)]+)/g",
+    "/\\|`?[a-z_]+`?\\|/g",
+    "/\\[.*?\\]\\(.*?\\)/g",
+    "/^\\s*authors?:.*$/gm",
+    "/^\\s*-\\s+.*<[^>]+>.*$/gm"
+  ]
+}