diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
new file mode 100644
index 0000000..2420929
--- /dev/null
+++ b/.github/workflows/spellcheck.yml
@@ -0,0 +1,16 @@
+name: Spell Check
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  spellcheck:
+    name: Spell Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: streetsidesoftware/cspell-action@9cd41bb518a24fefdafd9880cbab8f0ceba04d28
+        with:
+          config: cspell.json
diff --git a/Makefile b/Makefile
index 3eecadb..2b3ce86 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ PLUGIN_NAME := opentrace
 MARKETPLACE := opentrace-marketplace
 SCOPE := user
 
-.PHONY: install uninstall reinstall validate list marketplace-add marketplace-remove marketplace-reinstall dev
+.PHONY: install uninstall reinstall validate list marketplace-add marketplace-remove marketplace-reinstall dev spellcheck
 
 ## Install the plugin from the marketplace
 install:
@@ -33,3 +33,7 @@ dev: uninstall marketplace-reinstall install
 ## List installed plugins
 list:
 	claude plugin list
+
+## Run spell check
+spellcheck:
+	npx cspell --config cspell.json "**/*.{md,txt,sh,json}"
diff --git a/cspell.json b/cspell.json
new file mode 100644
index 0000000..c798049
--- /dev/null
+++ b/cspell.json
@@ -0,0 +1,39 @@
+{
+  "version": "0.2",
+  "language": "en",
+  "ignorePaths": [
+    ".claude/",
+    ".git/",
+    ".idea/",
+    "node_modules/",
+    "*.log"
+  ],
+  "words": [
+    "opentrace",
+    "codebase",
+    "submodule",
+    "submodules",
+    "guardrail",
+    "guardrails",
+    "hookSpecificOutput",
+    "hookEventName",
+    "additionalContext",
+    "systemMessage",
+    "maxDepth",
+    "edgeTypes",
+    "nodeTypes",
+    "edgeFilter",
+    "nodeFilter",
+    "mcpServers",
+    "pipefail",
+    "CURDIR",
+    "jq",
+    "gitignored",
+    "uninstall",
+    "reinstall",
+    "tooluse",
+    "PreToolUse",
+    "PostToolUse",
+    "SessionStart"
+  ]
+}
\ No newline at end of file