diff --git a/.claude/PROJECT.md b/.claude/PROJECT.md
new file mode 100644
index 0000000..58ca096
--- /dev/null
+++ b/.claude/PROJECT.md
@@ -0,0 +1,33 @@
+# IPFS Overlay - Claude Code Instructions
+
+This repository contains the IPFS overlay network implementation.
+
+## Project Structure
+
+```
+ipfs-overlay/
+├── .claude/         # AI assistant instructions
+├── .git/           # Version control
+├── .gitignore      # Git ignore rules
+├── .editorconfig   # Editor configuration
+└── ...             # Overlay files
+```
+
+## Build Commands
+
+Refer to project-specific documentation.
+
+## Coding Conventions
+
+- Follow hyperpolymath standards
+- All code must have SPDX license headers
+- Use approved languages only (see CLAUDE.md)
+- Document all non-obvious decisions
+
+## Security
+
+- No hardcoded secrets
+- All secrets through environment variables or secret management
+- SHA-pinned dependencies where applicable
+- HTTPS only, no HTTP URLs
+- No MD5/SHA1 for security purposes
diff --git a/contractiles/dust/Dustfile b/contractiles/dust/Dustfile
index 6f93c6a..df42b13 100644
--- a/contractiles/dust/Dustfile
+++ b/contractiles/dust/Dustfile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PLMP-1.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Dustfile template - recovery and rollback semantics
 
 version: 1
diff --git a/contractiles/must/Mustfile b/contractiles/must/Mustfile
index dc2c6b6..5a97a60 100644
--- a/contractiles/must/Mustfile
+++ b/contractiles/must/Mustfile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PLMP-1.0-or-later
+# SPDX-License-Identifier: PMPL-1.0-or-later
 # Mustfile - declarative state contract (template)
 # See: https://github.com/hyperpolymath/mustfile