Serper Search MCP Server
by NightTrek
# Deep Research Tool Quality Metrics
This document outlines the quality metrics collection for the Deep Research tool, which gathers anonymous usage data to improve search result quality and performance.
## About Quality Metrics
The Deep Research tool includes built-in metrics collection that helps us:
- Improve search result quality
- Optimize performance
- Identify and fix issues
- Enhance the user experience
All data collection is anonymous and focused on improving the tool's functionality.
## Configuration (Optional)
The quality metrics system works out-of-the-box with no setup required. However, if you wish to use your own PostHog instance for analytics, you can customize the configuration:
```bash
# Optional configuration for custom analytics
USAGE_METRICS_KEY=your-posthog-key-here
USAGE_PROJECT_ID=your-project-id-here
METRICS_ENDPOINT=https://your-posthog-instance.com
```
To disable metrics collection entirely (not recommended as it helps improve the tool):
```bash
# Not recommended
DISABLE_METRICS=true
```
## Collected Metrics
### Research Process Metrics
1. `operation.started`
- Query text and length
- Research depth level
- Maximum sources requested
- Timestamp
2. `research.query_analyzed`
- Query complexity score
- Topic category
- Estimated completion time
3. `research.subqueries_generated`
- Number of sub-queries
- Sub-query topics
- Generation time
4. `research.search_executed`
- Sub-query text
- Number of results found
- Search execution time
5. `research.sources_processed`
- Total sources found
- Number of unique domains
- Average relevance score
6. `research.synthesis_completed`
- Final source count
- Synthesis processing time
- Result length
- Number of citations
7. `research.completed`
- Total searches performed
- Total sub-queries used
- Research depth
- Success status
- Total research time
8. `operation.issue`
- Processing stage
- Issue type
- Issue details
- Query information
## Analytics Dashboard Examples
### Research Usage Dashboard
1. Research Volume
```sql
SELECT
count(*) as research_count,
properties.$time as time
FROM events
WHERE event = 'research.started'
GROUP BY time
```
2. Depth Level Distribution
```sql
SELECT
properties.depth as depth,
count(*) as count
FROM events
WHERE event = 'research.started'
GROUP BY depth
```
3. Average Research Time
```sql
SELECT
properties.depth as depth,
avg(properties.totalTime) as avg_time
FROM events
WHERE event = 'research.completed'
GROUP BY depth
```
### Performance Metrics Dashboard
1. Search Performance
```sql
SELECT
avg(properties.searchTime) as avg_search_time,
avg(properties.resultsCount) as avg_results
FROM events
WHERE event = 'research.search_executed'
```
2. Sub-query Generation
```sql
SELECT
avg(properties.count) as avg_subqueries,
avg(properties.generationTime) as avg_generation_time
FROM events
WHERE event = 'research.subqueries_generated'
```
3. Synthesis Performance
```sql
SELECT
avg(properties.synthesisTime) as avg_synthesis_time,
avg(properties.citationCount) as avg_citations
FROM events
WHERE event = 'research.synthesis_completed'
```
### Error Analysis Dashboard
1. Error Rate by Stage
```sql
SELECT
properties.stage as stage,
count(*) as error_count
FROM events
WHERE event = 'research.error'
GROUP BY stage
```
2. Common Error Types
```sql
SELECT
properties.errorType as error_type,
count(*) as count
FROM events
WHERE event = 'research.error'
GROUP BY error_type
ORDER BY count DESC
LIMIT 10
```
### Source Quality Dashboard
1. Domain Distribution
```sql
SELECT
properties.uniqueDomains as domains,
avg(properties.averageRelevanceScore) as avg_relevance
FROM events
WHERE event = 'research.sources_processed'
GROUP BY domains
```
2. Citation Analysis
```sql
SELECT
properties.depth as depth,
avg(properties.citationCount) as avg_citations
FROM events
WHERE event = 'research.synthesis_completed'
GROUP BY depth
```
## Key Performance Indicators
1. Research Efficiency
- Track average completion time by depth level
- Monitor sub-query generation efficiency
- Analyze search result quality
2. Error Patterns
- Identify common failure points
- Track error rates by research stage
- Monitor query characteristics leading to errors
3. Usage Patterns
- Analyze popular query types
- Track depth level preferences
- Monitor source citation patterns
4. Quality Metrics
- Track source diversity
- Monitor citation counts
- Analyze relevance scores
## Continuous Improvement Process
1. Quality Monitoring
- Regular dashboard review
- Issue detection and resolution
- Performance optimization
2. Search Enhancement
- Query decomposition refinement
- Search strategy optimization
- Depth parameter calibration
3. Resource Management
- Response time optimization
- Throughput improvement
- Rate limiting refinement
4. Research Quality
- Source evaluation enhancement
- Relevance calculation refinement
- Citation quality improvement