Testing Prompts
16 testing prompts for Claude Code and AI agents, ranked by real installs from npm, PyPI and skills.sh. promptpex leads with 137 installs a month.
#Type
- 1promptpexTest Generation for PromptsPromptsMay 2026
- 2langfuse🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23 PromptsJul 2026
- 3promptflowBuild high-quality LLM apps - from prototyping, testing to production deployment and monitoring.PromptsJul 2026
- 4pezzo🕹️ Open-source, developer-first LLMOps platform designed to streamline prompt design, version management, instant delivery, collaboration, troubleshooting, observability and more.PromptsMar 2026
- 5ChainForgeAn open-source visual programming environment for battle-testing prompts to LLMs.PromptsJun 2026
- 6PromptFuzzPromtFuzz is an automated tool that generates high-quality fuzz drivers for libraries via a fuzz loop constructed on mutating LLMs' prompts.PromptsMay 2026
- 7LLM-RGBLLM Reasoning and Generation Benchmark. Evaluate LLMs in complex scenarios systematically.PromptsMay 2025
- 8evalstatsStatistical analysis methods for comparing prompt and model performance in LLM evaluations.PromptsJul 2026
- 9litmux⚡ Unit tests for AI. Test prompts, compare models, save money.PromptsMay 2026
- 10playwright-mcp-promptsCollection of Playwright MCP prompt files for automated and manual testingPromptsSep 2025
- 11promptfoo-actionThe GitHub Action for Promptfoo. Test your prompts, agents, and RAGs. AI Red teaming, pentesting, and vulnerability scanning for LLMs. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and CI/CD integration.PromptsJul 2026
- 12futureagi-sdkProduction-grade AI evaluation, prompt management & observability SDK. Automated evaluations with sub-100ms guardrails. No human-in-the-loop required. Python + TypeScript.PromptsJul 2026
- 13OpenWebUI-Prompt-LibraryA selection of prompts designed for use with Open Web UI (rather than conventional prompts, they're more useful for steering existing conversations)PromptsFeb 2025
- 14com.genmanaiGenManAI is an open-source platform designed to streamline and revolutionize prompt testing for generative AI models.PromptsFeb 2026
- 15thumbA simple prompt testing library for LLMs.PromptsMay 2025
- 16promptlyA prompt collection for testing and evaluation of LLMs.PromptsJun 2026
