diff --git a/.cspell.json b/.cspell.json
new file mode 100644
index 0000000..7c28311
--- /dev/null
+++ b/.cspell.json
@@ -0,0 +1,304 @@
+// See: https://github.com/streetsidesoftware/cspell/tree/master/packages/cspell
+{
+  "version": "0.2",
+  // language - current active spelling language
+  "language": "en",
+  // dictionaries - list of the names of the dictionaries to use
+  "dictionaries": [
+    "en_US",
+    "softwareTerms",
+    "c",
+    "cpp",
+    "python",
+    "python-custom",
+    "rust",
+    "unix",
+    "posix",
+    "winapi"
+  ],
+  // dictionaryDefinitions - this list defines any custom dictionaries to use
+  "dictionaryDefinitions": [],
+  "ignorePaths": [
+    "**/__pycache__/**",
+    "Lib/**"
+  ],
+  // words - list of words to be always considered correct
+  "words": [
+    // Rust
+    "ahash",
+    "bidi",
+    "biguint",
+    "bindgen",
+    "bitflags",
+    "bstr",
+    "byteorder",
+    "chrono",
+    "consts",
+    "cstring",
+    "flate2",
+    "fract",
+    "hasher",
+    "hexf",
+    "idents",
+    "indexmap",
+    "insta",
+    "keccak",
+    "lalrpop",
+    "libc",
+    "libz",
+    "longlong",
+    "Manually",
+    "nbaz",
+    "maplit",
+    "memchr",
+    "memrchr",
+    "memmap",
+    "metas",
+    "modpow",
+    "nanos",
+    "peekable",
+    "powc",
+    "powf",
+    "prepended",
+    "punct",
+    "replacen",
+    "rsplitn",
+    "rustc",
+    "rustfmt",
+    "seekfrom",
+    "splitn",
+    "subsec",
+    "timsort",
+    "trai",
+    "ulonglong",
+    "unic",
+    "unistd",
+    "unsync",
+    "winapi",
+    "winsock",
+    // Python
+    "abstractmethods",
+    "aiter",
+    "anext",
+    "arrayiterator",
+    "arraytype",
+    "asend",
+    "athrow",
+    "basicsize",
+    "cformat",
+    "classcell",
+    "closesocket",
+    "codepoint",
+    "codepoints",
+    "cpython",
+    "decompressor",
+    "defaultaction",
+    "descr",
+    "dictcomp",
+    "dictitems",
+    "dictkeys",
+    "dictview",
+    "docstring",
+    "docstrings",
+    "dunder",
+    "eventmask",
+    "fdel",
+    "fget",
+    "fileencoding",
+    "fillchar",
+    "finallyhandler",
+    "frombytes",
+    "fromhex",
+    "fromunicode",
+    "fset",
+    "fspath",
+    "fstring",
+    "fstrings",
+    "genexpr",
+    "getattro",
+    "getformat",
+    "getnewargs",
+    "getweakrefcount",
+    "getweakrefs",
+    "hostnames",
+    "idiv",
+    "impls",
+    "infj",
+    "instancecheck",
+    "instanceof",
+    "isabstractmethod",
+    "itemiterator",
+    "itemsize",
+    "iternext",
+    "keyiterator",
+    "kwarg",
+    "kwargs",
+    "linearization",
+    "linearize",
+    "listcomp",
+    "mappingproxy",
+    "maxsplit",
+    "memoryview",
+    "memoryviewiterator",
+    "metaclass",
+    "metaclasses",
+    "metatype",
+    "mro",
+    "mros",
+    "nanj",
+    "ndigits",
+    "ndim",
+    "nonbytes",
+    "origname",
+    "posixsubprocess",
+    "pyexpat",
+    "PYTHONDEBUG",
+    "PYTHONHOME",
+    "PYTHONINSPECT",
+    "PYTHONOPTIMIZE",
+    "PYTHONPATH",
+    "PYTHONPATH",
+    "PYTHONVERBOSE",
+    "PYTHONWARNINGS",
+    "qualname",
+    "radd",
+    "rdiv",
+    "rdivmod",
+    "reconstructor",
+    "reversevalueiterator",
+    "rfloordiv",
+    "rlshift",
+    "rmod",
+    "rpow",
+    "rrshift",
+    "rsub",
+    "rtruediv",
+    "scproxy",
+    "setattro",
+    "setcomp",
+    "stacklevel",
+    "subclasscheck",
+    "subclasshook",
+    "unionable",
+    "unraisablehook",
+    "valueiterator",
+    "vararg",
+    "varargs",
+    "varnames",
+    "warningregistry",
+    "warnopts",
+    "weakproxy",
+    "xopts",
+    // RustPython
+    "baseclass",
+    "Bytecode",
+    "cfgs",
+    "codegen",
+    "dedentations",
+    "dedents",
+    "deduped",
+    "downcasted",
+    "dumpable",
+    "GetSet",
+    "internable",
+    "makeunicodedata",
+    "miri",
+    "nonterminal",
+    "notrace",
+    "pyarg",
+    "pyarg",
+    "pyargs",
+    "PyAttr",
+    "pyc",
+    "PyClass",
+    "PyClassMethod",
+    "PyException",
+    "PyFunction",
+    "pygetset",
+    "pyimpl",
+    "pymember",
+    "PyMethod",
+    "PyModule",
+    "pyname",
+    "pyobj",
+    "PyObject",
+    "pypayload",
+    "PyProperty",
+    "pyref",
+    "PyResult",
+    "pyslot",
+    "PyStaticMethod",
+    "pystr",
+    "pystruct",
+    "pystructseq",
+    "pytrace",
+    "reducelib",
+    "richcompare",
+    "RustPython",
+    "struc",
+    "tracebacks",
+    "typealiases",
+    "Unconstructible",
+    "unhashable",
+    "uninit",
+    "unraisable",
+    "wasi",
+    "zelf",
+    // cpython
+    "argtypes",
+    "asdl",
+    "asname",
+    "augassign",
+    "badsyntax",
+    "basetype",
+    "boolop",
+    "bxor",
+    "cellarg",
+    "cellvar",
+    "cellvars",
+    "cmpop",
+    "dictoffset",
+    "elts",
+    "excepthandler",
+    "finalbody",
+    "freevar",
+    "freevars",
+    "fromlist",
+    "heaptype",
+    "IMMUTABLETYPE",
+    "kwonlyarg",
+    "kwonlyargs",
+    "linearise",
+    "maxdepth",
+    "mult",
+    "nkwargs",
+    "orelse",
+    "patma",
+    "posonlyarg",
+    "posonlyargs",
+    "prec",
+    "significand",
+    "stackdepth",
+    "unaryop",
+    "unparse",
+    "unparser",
+    "VARKEYWORDS",
+    "varkwarg",
+    "wbits",
+    "withitem",
+    "withitems",
+    "withs"
+  ],
+  // flagWords - list of words to be always considered incorrect
+  "flagWords": [
+  ],
+  "ignoreRegExpList": [
+  ],
+  // languageSettings - allow for per programming language configuration settings.
+  "languageSettings": [
+    {
+      "languageId": "python",
+      "locale": "en"
+    }
+  ]
+}
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 18f9e9d..4ecd211 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -62,3 +62,12 @@ jobs:
         run: python -m pip install ruff
       - name: run python lint
         run: ruff --ignore=E501 ast --show-source
+
+      - name: spell checker
+        uses: streetsidesoftware/cspell-action@v2
+        with:
+          files: |
+            'ast/**/*.rs'
+            'core/**/*.rs'
+            'literal/**/*.rs'
+            'parser/**/*.rs'
diff --git a/ast/src/lib.rs b/ast/src/lib.rs
index 66c7804..45fb1fb 100644
--- a/ast/src/lib.rs
+++ b/ast/src/lib.rs
@@ -32,6 +32,7 @@ pub mod fold {
 #[cfg(feature = "visitor")]
 mod visitor {
     use super::generic::*;
+
     include!("gen/visitor.rs");
 }
 
diff --git a/literal/src/escape.rs b/literal/src/escape.rs
index de7a514..921d3dc 100644
--- a/literal/src/escape.rs
+++ b/literal/src/escape.rs
@@ -65,7 +65,7 @@ pub(crate) const fn choose_quote(
         Quote::Double => (double_count, single_count),
     };
 
-    // always use primary unless we have primary but no seconday
+    // always use primary unless we have primary but no secondary
     let use_secondary = primary_count > 0 && secondary_count == 0;
     if use_secondary {
         (preferred_quote.swap(), secondary_count)
@@ -242,7 +242,7 @@ impl<'a> Escape for UnicodeEscape<'a> {
 }
 
 #[cfg(test)]
-mod unicode_escapse_tests {
+mod unicode_escape_tests {
     use super::*;
 
     #[test]
diff --git a/scripts/cspell.sh b/scripts/cspell.sh
new file mode 100644
index 0000000..62f8cf2
--- /dev/null
+++ b/scripts/cspell.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+cspell "ast/**/*.rs" "literal/**/*.rs" "core/**/*.rs" "parser/**/*.rs"