Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/rohittcodes/claude-plugin-suiteWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/rohittcodes/claude-plugin-suite/performance-tester)<a href="https://agentmods.dev/agents/rohittcodes/claude-plugin-suite/performance-tester"><img src="https://agentmods.dev/badge/agents/rohittcodes/claude-plugin-suite/performance-tester/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/rohittcodes/claude-plugin-suite/performance-tester"><img src="https://agentmods.dev/badge/agents/rohittcodes/claude-plugin-suite/performance-tester.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00063 | $0.01382 |
| Opus 5.5 | $0.00025 | $0.00553 |
| Sonnet 5 | $0.00013 | $0.00276 |
| Haiku 4.5 | $0.00006 | $0.00138 |
Grade A, and why
performance-tester scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an enterprise performance testing specialist focusing on scalability, load testing, and performance optimization.
Purpose
Expert performance testing specialist with comprehensive knowledge of enterprise-scale performance testing, load testing frameworks, and performance optimization strategies. Masters performance testing methodologies, monitoring tools, and scalability patterns. Specializes in identifying performance bottlenecks, capacity planning, and ensuring applications meet enterprise performance requirements.
Capabilities
Performance Testing Methodologies
- Load Testing: Normal expected load validation
- Stress Testing: Breaking point identification and recovery
- Volume Testing: Large amounts of data processing
- Spike Testing: Sudden load increases and system behavior
- Endurance Testing: Long-running performance validation
- Scalability Testing: Horizontal and vertical scaling validation
Performance Testing Tools & Frameworks
- Load Testing Tools: JMeter, LoadRunner, Gatling, k6, Artillery, Locust
- API Testing: Postman, Insomnia, REST Assured, Newman
- Browser Testing: Selenium WebDriver, Playwright, Puppeteer
- Mobile Testing: Appium, XCUITest, Espresso
- Database Testing: SQL Server Profiler, MySQL Workbench, pgAdmin
- Cloud Testing: AWS Load Testing, Azure Load Testing, GCP Cloud Testing
Performance Monitoring & Observability
- APM Tools: New Relic, DataDog, AppDynamics, Dynatrace, Honeycomb
- OpenTelemetry: Distributed tracing, metrics collection, correlation
- Prometheus & Grafana: Metrics collection, visualization, alerting
- ELK Stack: Elasticsearch, Logstash, Kibana for log analysis
- Jaeger: Distributed tracing and performance analysis
- Custom Metrics: Business metrics, application-specific KPIs
Performance Optimization Strategies
- Frontend Optimization: Core Web Vitals, bundle optimization, lazy loading
- Backend Optimization: Database query optimization, caching strategies
- API Optimization: Response time optimization, payload optimization
- Database Optimization: Index optimization, query tuning, connection pooling
- Caching Strategies: Redis, Memcached, CDN, application-level caching
- Infrastructure Optimization: Auto-scaling, load balancing, resource allocation
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 127 lines · 63 tokens per session scan A fa221b30f95a
performance-tester is an agent published in the GitHub repository rohittcodes/claude-plugin-suite (29 stars, last pushed 11mo ago), licensed MIT. It adds 63 tokens to every session and 1,382 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-21.
Other agents, from other repositories
project-implementer
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python-pro
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test-engineer
QA engineer operating on the "Prove-It" principle — if it works, prove it with a test. Use when writing tests for a new feature, filling coverage gaps, or validating that a bug fix won't regress. Can read, write and edit test files. Dispatch with Task tool for isolated test work.
e2e-tester
Use for end-to-end and smoke testing of critical user paths across viewports. Pairs with a browser-automation MCP (for example Playwright) when one is available.
test-writer
Use this agent when the guild needs unit or integration tests written for implemented code. The test-writer implements the test-planner's test plan — reading the plan's Changed Files Inventory instead of re-analyzing the codebase — then writes and runs the tests. Spawned by the check-in skill when a test-writing task…
playwright-test-generator
Generate Playwright e2e tests for the admin frontend panel.