a5c-ai/performance-baseline-capturer
library/specializations/code-migration-modernization/skills/performance-baseline-capturer/SKILL.md
Capture performance baselines before migration for regression comparison and SLA verification
$ install --global
skillsauthnpx skillsauth add a5c-ai/babysitter performance-baseline-capturerInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- performance-baseline-capturer
- description:
- Capture performance baselines before migration for regression comparison and SLA verification
- allowed-tools:
- ["Bash", "Read", "Write", "Grep", "Glob", "Edit"]
Performance Baseline Capturer Skill
Captures comprehensive performance baselines before migration to enable post-migration regression comparison and SLA verification.
Purpose
Enable performance benchmarking for:
- Response time measurement
- Throughput baseline
- Resource utilization tracking
- Load test execution
- Percentile calculation
Capabilities
1. Response Time Measurement
- Capture response times
- Measure latency percentiles
- Track by endpoint
- Document SLA targets
2. Throughput Baseline
- Measure requests per second
- Track concurrent users
- Document peak capacity
- Establish limits
3. Resource Utilization Tracking
- Monitor CPU usage
- Track memory consumption
- Measure disk I/O
- Record network usage
4. Load Test Execution
- Run baseline load tests
- Execute stress tests
- Perform soak tests
- Document results
5. Percentile Calculation
- Calculate P50/P90/P95/P99
- Track distribution
- Identify outliers
- Set thresholds
6. Regression Threshold Setting
- Define acceptable ranges
- Set alert thresholds
- Document tolerances
- Create comparison criteria
Tool Integrations
| Tool | Purpose | Integration Method | |------|---------|-------------------| | JMeter | Load testing | CLI | | Gatling | Performance testing | CLI | | k6 | Modern load testing | CLI | | Locust | Python load testing | CLI | | Artillery | Node.js testing | CLI | | wrk | HTTP benchmarking | CLI |
Output Schema
{
"baselineId": "string",
"timestamp": "ISO8601",
"environment": {
"name": "string",
"resources": {}
},
"metrics": {
"responseTime": {
"p50": "number",
"p90": "number",
"p95": "number",
"p99": "number",
"mean": "number"
},
"throughput": {
"requestsPerSecond": "number",
"peakRps": "number",
"concurrentUsers": "number"
},
"resources": {
"cpu": {},
"memory": {},
"disk": {},
"network": {}
}
},
"thresholds": {
"responseTime": {},
"throughput": {},
"errors": {}
}
}
Integration with Migration Processes
- migration-testing-strategy: Baseline establishment
- performance-optimization-migration: Performance tracking
Related Skills
migration-validator: Post-migration comparisontest-coverage-analyzer: Test planning
Related Agents
performance-validation-agent: Performance verificationmigration-testing-strategist: Test planning
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