diff --git a/CLAUDE.md b/CLAUDE.md
index d5c8475a..7806eb3b 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -24,7 +24,7 @@ uv sync --extra dev
 # Format code (ruff import sorting + formatting)
 make format
 
-# Lint code (ruff + mypy type checking)
+# Lint code (ruff + pyright type checking)
 make lint
 
 # Run tests
@@ -111,7 +111,8 @@ docker-compose up
 - Use Ruff for formatting and linting (configured in pyproject.toml)
 - Line length: 100 characters
 - Quote style: single quotes
-- Type checking with MyPy is enforced
+- Type checking with Pyright is enforced
+- Main project uses `typeCheckingMode = "basic"`, server uses `typeCheckingMode = "standard"`
 
 ### Testing Requirements
 
@@ -130,4 +131,4 @@ When working with the MCP server, follow the patterns established in `mcp_server
 - Always search for existing knowledge before adding new information
 - Use specific entity type filters (`Preference`, `Procedure`, `Requirement`)
 - Store new information immediately using `add_memory`
-- Follow discovered procedures and respect established preferences
+- Follow discovered procedures and respect established preferences
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