diff --git a/.cspell.yaml b/.cspell.yaml
index f352a07..ec308bc 100644
--- a/.cspell.yaml
+++ b/.cspell.yaml
@@ -5,11 +5,14 @@
 # - Maintain professional documentation and code quality
 # - Catch spelling errors before publication
 # - Support consistent technical terminology usage
+# - Misspelled words should be fixed in the source
+# - NEVER add a misspelled word to the 'words' list
+# - PROPOSE only genuine technical terms/names as needed
 
 version: "0.2"
 language: en
 
-# Project-specific technical terms and tool names (update as needed)
+# Project-specific technical terms and tool names
 words:
   - Anson
   - Blockquotes
diff --git a/AGENTS.md b/AGENTS.md
index d67b9a8..b7e7c25 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -48,6 +48,16 @@ implementation demonstrating best practices for DEMA Consulting .NET libraries.
 - **`.editorconfig`** - Code style (file-scoped namespaces, 4-space indent, UTF-8, LF endings)
 - **`.cspell.yaml`, `.markdownlint-cli2.yaml`, `.yamllint.yaml`** - Linting configs
 
+### Spell check word list policy
+
+**Never** add a word to the `.cspell.yaml` word list in order to silence a spell-checking failure.
+Doing so defeats the purpose of spell-checking and reduces the quality of the repository.
+
+- If cspell flags a word that is **misspelled**, fix the spelling in the source file.
+- If cspell flags a word that is a **genuine technical term** (tool name, project identifier, etc.) and is
+  spelled correctly, raise a **proposal** (e.g. comment in a pull request) explaining why the word
+  should be added. The proposal must be reviewed and approved before the word is added to the list.
+
 ## Requirements
 
 - All requirements MUST be linked to tests
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9aa2b66..e70d90c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -180,12 +180,13 @@ All markdown files must follow these rules (enforced by markdownlint):
 
 ### Spell Checking
 
-All files are spell-checked using cspell. Add project-specific terms to `.cspell.yaml`:
+All files are spell-checked using cspell. **Never** add a word to the `.cspell.yaml` word list in order to silence a
+spell-checking failure. Doing so defeats the purpose of spell-checking and reduces the quality of the repository.
 
-```yaml
-words:
-  - myterm
-```
+- If cspell flags a word that is **misspelled**, fix the spelling in the source file.
+- If cspell flags a word that is a **genuine technical term** (tool name, project identifier, etc.) and is spelled
+  correctly, raise a **proposal** (e.g. comment in a pull request) explaining why the word should be added. The
+  proposal must be reviewed and approved before the word is added to the list.
 
 ## Quality Checks