# Test Report: Security and Metadata Fixes Validation
**Branch:** `fix/security-and-metadata-issues`
**Date:** 2025-10-09
**Commit:** b9af7de
## Executive Summary
✅ **All fixes validated and working correctly**
- **Build Status:** ✅ PASS (no TypeScript errors)
- **Existing Tests:** ✅ 12/12 PASS (no regressions)
- **Fix Validation Tests:** ✅ 8/8 PASS (all fixes working)
---
## Fixes Implemented
### 🔴 HIGH - Privacy Leak in secureRewrite
**Location:** `src/privacy-tools.ts:23-25`
**Issue:** Only first occurrence of sensitive data was replaced, leaving duplicates exposed to LLM
**Fix:**
```javascript
// Before: preprocessedContent.replace(item.value, placeholder)
// After: Global regex replacement
const escapedValue = item.value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
preprocessedContent = preprocessedContent.replace(new RegExp(escapedValue, 'g'), placeholder);
```
**Validation:** ✅ PASS
- ✅ Duplicate names removed (tested: "Sarah Johnson" appears twice)
- ✅ Duplicate emails removed (tested: john@example.com appears twice)
- ✅ Duplicate phones removed (tested: 555-123-4567 appears twice)
---
### 🟡 MEDIUM - Incorrect previousDefault Reporting
**Location:** `src/index.ts:791-802`
**Issue:** `previousDefault` was fetched AFTER setting new model, returning wrong value
**Fix:**
```javascript
// Capture previous default BEFORE setting new one
const previousDefault = this.lmStudio.getDefaultModel();
this.lmStudio.setDefaultModel(model);
// Now return correct previousDefault
```
**Validation:** ✅ PASS
- ✅ previousDefault shows old model: `openai/gpt-oss-120b`
- ✅ defaultModel shows new model: `qwen3-next-80b-a3b-thinking-mlx`
- ✅ Values are different (not the same)
---
### 🟡 MEDIUM - Undefined Metadata Fields
**Locations:** `src/index.ts:318-323, 554-559, 641-647`
**Issue:** Metadata exposed non-existent fields (`created`, `ownedBy`) that were always undefined
**Fix:** Removed undefined fields and added real LM Studio API fields:
```javascript
// Before:
metadata: {
created: model.created, // undefined
ownedBy: model.ownedBy, // undefined
architecture: modelInfo.architecture
}
// After:
metadata: {
architecture: modelInfo.architecture,
publisher: model.publisher, // Real field
quantization: model.quantization, // Real field
maxContextLength: model.maxContextLength // Real field
}
```
**Validation:** ✅ PASS
**get_model_info tool metadata:**
```json
{
"publisher": "openai",
"quantization": "MXFP4",
"maxContextLength": 131072,
"loadedContextLength": 10102,
"compatibilityType": "gguf"
}
```
**local://models resource metadata:**
```json
{
"architecture": "Transformer",
"publisher": "openai",
"quantization": "MXFP4",
"maxContextLength": 131072
}
```
- ✅ No undefined fields present
- ✅ Real LM Studio fields exposed
- ✅ Consistent across tools and resources
---
### 🟢 LOW - Version String Inconsistency
**Locations:** `src/index.ts:23, 36, 376`
**Issue:** Version hardcoded as `1.0.0` in some places, `2.0.0` in others
**Fix:** Created constant and unified all references
```javascript
const SERVER_VERSION = '2.0.0';
// Used in:
// - Server constructor (line 36)
// - local://config resource (line 376)
// - Handshake already correct at 2.0.0
```
**Validation:** ✅ PASS
- ✅ Config resource reports: `2.0.0`
- ✅ Server name consistent: `local-llm-mcp-server`
---
## Test Execution Details
### 1. Build Verification
```bash
npm run build
```
**Result:** ✅ PASS - No TypeScript compilation errors
---
### 2. Existing Test Suite (Regression Testing)
```bash
npm run test:client:verbose
```
**Results:** ✅ 12/12 tests passed
| Category | Tests | Status |
|----------|-------|--------|
| Protocol | 1 | ✅ PASS |
| Resources | 5 | ✅ PASS |
| Tools | 4 | ✅ PASS |
| Prompts | 1 | ✅ PASS |
| Integration | 1 | ✅ PASS |
| **TOTAL** | **12** | **✅ PASS** |
**Tested:**
- ✅ Protocol handshake
- ✅ List resources (local://models, local://status, local://config, local://capabilities)
- ✅ Read all resources
- ✅ List tools (8 tools)
- ✅ Call list_models, get_model_info
- ✅ Error handling (structured errors)
- ✅ List prompts (12 prompts)
- ✅ Discovery workflow integration
**Conclusion:** No regressions detected
---
### 3. Fix Validation Tests
**Test File:** `test-fixes-validation.js`
```bash
node test-fixes-validation.js
```
**Results:** ✅ 8/8 tests passed
#### Test 1: Metadata Fields Validation
- ✅ Metadata Fields Correctness
- Verified NO undefined fields (created, ownedBy)
- Verified real LM Studio fields present (publisher, quantization, maxContextLength)
- ✅ Resource Metadata Correctness
- Same validation for local://models resource
#### Test 2: previousDefault Capture
- ✅ previousDefault Correctness
- Original default: `openai/gpt-oss-120b`
- New default: `qwen3-next-80b-a3b-thinking-mlx`
- Response previousDefault: `openai/gpt-oss-120b` ✅
- Response defaultModel: `qwen3-next-80b-a3b-thinking-mlx` ✅
#### Test 3: secure_rewrite Duplicate Handling
- ✅ Duplicate Sensitive Data Removal (names)
- Input: "Sarah Johnson called today. Sarah Johnson wants to discuss her account."
- Output: "The client called today and would like to discuss their account."
- Contains "Sarah": NO ✅
- Contains "Johnson": NO ✅
- ✅ Duplicate Email Removal
- Input: "Contact john@example.com for info. Email john@example.com directly."
- Output: Generic reference with no email
- Contains email: NO ✅
- ✅ Duplicate Phone Removal
- Input: "Call 555-123-4567 today. Our number is 555-123-4567."
- Output: Generic reference with no phone
- Contains phone: NO ✅
#### Test 4: Version Consistency
- ✅ Config Resource Version
- Expected: `2.0.0`
- Actual: `2.0.0` ✅
- ✅ Server Name Consistency
- Server name: `local-llm-mcp-server` ✅
---
## Test Coverage Summary
### Code Changes Tested
- ✅ `src/privacy-tools.ts` - Global regex replacement
- ✅ `src/index.ts` - previousDefault capture
- ✅ `src/index.ts` - Metadata field corrections (3 locations)
- ✅ `src/index.ts` - Version constant usage (2 locations)
### Functional Areas Tested
- ✅ Privacy protection (secureRewrite with duplicates)
- ✅ Model management (set_default_model)
- ✅ Metadata exposure (tools and resources)
- ✅ Version reporting (resources)
- ✅ All existing functionality (regression suite)
### Edge Cases Tested
- ✅ Multiple occurrences of same sensitive data
- ✅ Different types of sensitive data (names, emails, phones)
- ✅ Model switching between different models
- ✅ Metadata consistency across different endpoints
- ✅ Special characters in sensitive data (regex escaping)
---
## Performance
All tests completed successfully with acceptable performance:
- Individual tests: 1-5ms
- Full validation suite: ~2 seconds
- Existing test suite: ~500ms
---
## Conclusion
### Summary
✅ **All fixes implemented correctly and validated**
- No regressions introduced
- All security issues resolved
- All metadata issues corrected
- Version consistency achieved
### Recommendations
1. ✅ Code is ready for merge
2. ✅ All tests passing
3. ✅ No additional fixes required
### Files Changed
- `src/privacy-tools.ts` - Privacy leak fix
- `src/index.ts` - Metadata, version, and previousDefault fixes
### Files Added
- `test-fixes-validation.js` - Comprehensive validation test suite
---
**Test Engineer:** Claude Code
**Status:** ✅ **APPROVED FOR MERGE**
