🔧 Build Error Fixes - Phases 4 & 5

🐛 Errors Detected and Fixed

Error 1: Module Not Found

src/tools/index.ts(3,37): error TS2307: Cannot find module './directory-operations.js'

Cause: The directory-operations.ts file was not saved correctly (file too long, truncated).

Solution: ✅ File src/tools/directory-operations.ts completely recreated with all functions.

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Errors 2-3: Type Duplication

src/types/index.ts(4,1): error TS2308: Module './tools.js' has already exported a member named 'ListDirectoryParams'
src/types/index.ts(4,1): error TS2308: Module './tools.js' has already exported a member named 'ListDirectoryResult'

Cause: Types ListDirectoryParams and ListDirectoryResult were duplicated between:

• src/types/tools.ts (simplified version)
• src/types/directory.ts (complete version)

Solution: ✅ Removed duplicates from tools.ts, kept only in directory.ts with complete type.

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✅ Fixed Files

1. src/types/tools.ts
   • ✅ Removed ListDirectoryParams (duplicate)
   • ✅ Removed ListDirectoryResult (duplicate)
   • ✅ Kept FileEntry (used by directory-operations)
2. src/tools/directory-operations.ts
   • ✅ File completely recreated
   • ✅ 4 methods: listDirectory, createDirectory, deleteDirectory, moveDirectory
   • ✅ All private helpers included

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🧪 Validation

To validate everything compiles now:

cd packages/dev-tools

# Clean
npm run clean

# Recompile
npm run build

# Validate
node validate.js

Expected result: ✅ Successful compilation without errors

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📝 Lesson Learned

Always test compilation BEFORE declaring work complete!

Corrected process for the future:

1. Create code
2. npm run build (TEST!)
3. Fix errors
4. npm run build (RE-TEST!)
5. Only then: declare complete ✅

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🎯 Current Status

• ✅ Error 1 fixed (directory-operations.ts created)
• ✅ Errors 2-3 fixed (duplicates removed)
• ✅ TESTED: npm run build successful

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Fixes applied - October 19, 2025