Test Memory System

Purpose

Comprehensively test the new memory improvements implemented in Local Brain Search:

• Phase 1: Intent Classification
• Phase 3: Spreading Activation
• Phase 4: Usage-Based Learning (Q-values)

State Dependencies

Prerequisites

• Virtual environment activated: source resources/local-brain-search/venv/bin/activate
• FAISS index built: data/brain.faiss exists
• Graph built: data/brain_graph.pkl exists
• Dependencies installed: pip install -r requirements.txt

Inputs

• None (runs full test suite)

Process

Step 1: Environment Verification

Verify all components are installed and accessible.

cd resources/local-brain-search
source venv/bin/activate

# Check files exist
ls -la data/brain.faiss data/brain_metadata.pkl data/brain_graph.pkl

# Check Python dependencies
python -c "import faiss; import networkx; import sentence_transformers; print('All dependencies OK')"

# Check new modules exist
python -c "from intent import classify_intent; from spreading import spreading_activation; from learning import get_learning_stats; print('All new modules OK')"

Expected: All files exist, all imports succeed.

Step 2: Test Intent Classification

Test that queries are correctly classified into four intent types.

cd resources/local-brain-search
source venv/bin/activate
python intent.py

Test Cases:

Record Results:

• Total queries tested: X
• Correctly classified: Y
• Accuracy: Y/X %

Step 3: Test Static vs Spreading Search

Compare results between static (traditional) and spreading activation modes.

cd resources/local-brain-search

# Test 1: Static search
./run_search.sh "dopamine and motivation" --mode static --limit 5 --json | python -m json.tool

# Test 2: Spreading search (same query)
./run_search.sh "dopamine and motivation" --mode spreading --limit 5 --json | python -m json.tool

# Test 3: Synthesis query (where spreading should excel)
./run_search.sh "connect Buddhism neuroscience consciousness" --mode static --limit 5 --json
./run_search.sh "connect Buddhism neuroscience consciousness" --mode spreading --limit 5 --json

Expected Results:

• Static and spreading should produce DIFFERENT result sets
• Spreading mode should find cross-domain connections
• Spreading should reduce "hub dominance" (e.g., Dopamine note appearing in everything)

Record:

• Result overlap: X out of 5 (should be 0-2 for synthesis queries)
• Spreading iterations: usually 3-5
• Did spreading find non-obvious connections? Y/N

Step 4: Test Intent-Adaptive Spreading

Verify that different intents produce different spreading parameters.

cd resources/local-brain-search

# Factual query (should use minimal spreading)
./run_search.sh "What is dopamine?" --mode spreading --json 2>&1 | grep -E "(iterations|Intent)"

# Synthesis query (should use maximum spreading)
./run_search.sh "connect dopamine Buddhism identity" --mode spreading --json 2>&1 | grep -E "(iterations|Intent)"

Expected:

• Factual: max_iterations=2, inhibition_strength=0.5
• Conceptual: max_iterations=5, inhibition_strength=0.2
• Synthesis: max_iterations=7, inhibition_strength=0.1
• Temporal: max_iterations=3, temporal_decay=0.7

Step 5: Test Lateral Inhibition

Verify that hub notes don't dominate results.

Scope note: Dopamine.md was the canonical hub example on the whole-graph fingerprint (DI-inflated). Scope enforcement is now ON (since 2026-06-25; see SCOPE-IMPLEMENTATION-PLAN.md), so the core-scoped hubs are MOC - Eight-Circuit / Decision Making / Gilbert / Tetlock - use one of those as the "known hub" probe. Dopamine remains a valid permanent note and search target either way - only its centrality ranking changed (it is no longer a top hub).

cd resources/local-brain-search

# Search for topic where Dopamine.md is a known hub
./run_search.sh "motivation reward behavior" --mode spreading --limit 10 --json

# Check if Dopamine.md dominates or if diverse results appear

Expected:

• Top 10 results should include notes beyond the immediate Dopamine cluster
• Lateral inhibition suppresses over-represented clusters
• Results should show diversity across topics

Record:

• Number of results from Dopamine cluster: X/10
• Number of distinct topic clusters represented: Y

Step 6: Test Usage-Based Learning Status

Check current learning system state.

cd resources/local-brain-search

# Check learning status
./run_learning.sh status

# View top notes by Q-value
./run_learning.sh top --limit 10

# Export full learning data
./run_learning.sh export --output /tmp/learning_export.json

Expected:

• Learning enabled: True
• Events tracked with proper structure
• Q-values in reasonable range (-1.0 to 2.0)

Record:

• Total events tracked: X
• Unique notes with Q-values: Y
• Average Q-value: Z

Step 7: Test Usage Event Tracking

Verify that search operations are being tracked.

cd resources/local-brain-search

# Count events before
BEFORE=$(wc -l < data/usage_history.jsonl)

# Run a search
./run_search.sh "test query for tracking" --mode spreading --limit 5

# Count events after
AFTER=$(wc -l < data/usage_history.jsonl)

echo "Events before: $BEFORE, after: $AFTER, new: $((AFTER - BEFORE))"

# Verify event structure
tail -5 data/usage_history.jsonl | python -m json.tool

Expected:

• New events should be logged (5 for limit=5)
• Events should have: timestamp, note_id, query, query_intent, event_type, position, session_id, mode

Step 8: Test Q-Value Updates

Verify that different event types produce appropriate Q-value changes.

cd resources/local-brain-search

# Get current Q-value for a test note
cat data/q_values.json | python -c "import json,sys; d=json.load(sys.stdin); print(d.get('02-Permanent/Dopamine.md', 'not found'))"

# Log a read event
./run_learning.sh log read "02-Permanent/Dopamine.md" --query "test"

# Check Q-value increased
cat data/q_values.json | python -c "import json,sys; d=json.load(sys.stdin); print(d.get('02-Permanent/Dopamine.md', 'not found'))"

Expected Q-value changes:

• retrieved: +0.0 (no change)
• read: +0.5 base reward
• referenced: +1.0 base reward
• linked: +1.5 base reward

Note: Actual changes are modulated by learning_rate (0.1) and position factor.

Step 9: Test Q-Value Ranking Adjustment

Verify that Q-values influence search result ranking.

cd resources/local-brain-search

# First, artificially boost a note's Q-value
python -c "
import json
with open('data/q_values.json', 'r') as f:
    q = json.load(f)
q['02-Permanent/Identity.md'] = 1.5  # High Q-value
with open('data/q_values.json', 'w') as f:
    json.dump(q, f, indent=2)
print('Q-value set for Identity.md')
"

# Search for something where Identity.md is somewhat relevant
./run_search.sh "belief systems self" --mode spreading --limit 10 --json

# Check if Identity.md ranks higher due to Q-value boost

Expected:

• Notes with high Q-values should rank higher (30% weight by default)
• Q-value boost = 1.0 + (q_value * 0.3)

Step 10: Test No-Track Mode

Verify that --no-track flag prevents usage logging.

cd resources/local-brain-search

# Count events before
BEFORE=$(wc -l < data/usage_history.jsonl)

# Run search with --no-track
./run_search.sh "no track test" --mode static --no-track

# Count events after
AFTER=$(wc -l < data/usage_history.jsonl)

echo "Events should be same: before=$BEFORE, after=$AFTER"

Expected: No new events logged when --no-track is used.

Step 11: Test Configuration Loading

Verify memory_config.py is the single source of truth.

cd resources/local-brain-search

# Print current configuration
python memory_config.py

# Verify spreading uses config
python -c "
from memory_config import MEMORY_CONFIG
print('Spreading max_iterations:', MEMORY_CONFIG['spreading']['max_iterations'])
print('Learning enabled:', MEMORY_CONFIG['learning']['enabled'])
print('Q-weight:', MEMORY_CONFIG['learning']['q_weight'])
"

Expected:

• All configuration centralized in memory_config.py
• No hardcoded values in search.py, spreading.py, learning.py

Step 12: Performance Benchmarks

Measure search latency for both modes.

cd resources/local-brain-search

# Benchmark static search
time (for i in {1..5}; do ./run_search.sh "dopamine" --mode static --limit 10 --no-track > /dev/null; done)

# Benchmark spreading search
time (for i in {1..5}; do ./run_search.sh "dopamine" --mode spreading --limit 10 --no-track > /dev/null; done)

Expected:

• Static search: ~100-200ms per query
• Spreading search: ~300-500ms per query
• Spreading should be <2x slower than static

Step 13: Edge Case Testing

Test boundary conditions.

cd resources/local-brain-search

# Empty query
./run_search.sh "" --mode spreading --limit 5 2>&1

# Very long query
./run_search.sh "$(python -c 'print("dopamine " * 100)')" --mode spreading --limit 5 2>&1

# Non-existent topic
./run_search.sh "xyznonexistenttopicxyz" --mode spreading --limit 5 --json

# Unicode query
./run_search.sh "意識 consciousness" --mode spreading --limit 5 --json

Expected:

• Empty query: Graceful error or default behavior
• Long query: Should truncate or handle gracefully
• Non-existent: Return empty or low-confidence results
• Unicode: Should not crash

Generate Test Report

After running all tests, generate a comprehensive report.

REPORT_DIR="resources/memory-test-reports"
REPORT_FILE="$REPORT_DIR/test-report-$(date +%Y-%m-%d-%H%M).md"
mkdir -p "$REPORT_DIR"

Report Template

# Memory System Test Report

**Date:** YYYY-MM-DD HH:MM
**Tester:** [name]
**System Version:** Cornelius v01.25

## Summary

| Component | Status | Notes |
|-----------|--------|-------|
| Intent Classification | ✓/✗ | |
| Spreading Activation | ✓/✗ | |
| Lateral Inhibition | ✓/✗ | |
| Usage Tracking | ✓/✗ | |
| Q-Value Learning | ✓/✗ | |
| Configuration Loading | ✓/✗ | |
| Performance | ✓/✗ | |

## Detailed Results

### Intent Classification
- Accuracy: X%
- Failures: [list]

### Spreading vs Static
- Result overlap: X/5
- Spreading found cross-domain connections: Y/N
- Example good result: [describe]

### Lateral Inhibition
- Hub dominance reduced: Y/N
- Diversity improved: Y/N

### Learning System
- Events tracked: X
- Q-values updated correctly: Y/N
- Ranking adjustment working: Y/N

### Performance
- Static search avg: Xms
- Spreading search avg: Xms
- Acceptable: Y/N

## Issues Found

1. [Issue description]
   - Severity: High/Medium/Low
   - Steps to reproduce: [steps]
   - Suggested fix: [suggestion]

## Recommendations

1. [Recommendation]
2. [Recommendation]

## Next Steps

- [ ] Address issues found
- [ ] Move to Phase 2 (Extended Graph) if all passes
- [ ] Enable spreading as default mode if stable

Completion Checklist

• Step 1: Environment verified
• Step 2: Intent classification tested (>85% accuracy)
• Step 3: Static vs spreading compared
• Step 4: Intent-adaptive spreading verified
• Step 5: Lateral inhibition working
• Step 6: Learning status checked
• Step 7: Usage tracking verified
• Step 8: Q-value updates working
• Step 9: Ranking adjustment confirmed
• Step 10: No-track mode verified
• Step 11: Configuration centralized
• Step 12: Performance acceptable
• Step 13: Edge cases handled
• Test report generated and saved

Error Recovery

If tests fail:

1. Import errors: Check requirements.txt installed in venv
2. File not found: Run python index_brain.py to rebuild index
3. Learning errors: Run ./run_learning.sh reset --confirm to reset
4. Config errors: Check memory_config.py syntax

Related Skills

• /refresh-index - Rebuild FAISS index
• /search-vault - Production search interface
• /recall - 3-layer semantic retrieval