flux/prompt-engineering
github.com
What are the principles we can use to build LLM-powered software that is actually good enough to put in the hands of production customers? - humanlayer/12-factor-agents
github.comAn AI prompt optimizer for writing better prompts and getting better AI results. - linshenkx/prompt-optimizer
github.com
The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while control...
github.com🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓 - Helicone/helicone
github.com
Extracted system prompts from ChatGPT (GPT-5.4, GPT-5.3, Codex), Claude (Opus 4.6, Sonnet 4.6, Claude Code), Gemini (3.1 Pro, 3 Flash, CLI), Grok (4.2, 4), Perplexity, and more. Updated regularly. ...
github.com
f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy. - f/prompts.chat
github.com
+192 Claude Code skills & agent plugins for Claude Code, Codex, Gemini CLI, Cursor, and 8 more coding agents — engineering, marketing, product, compliance, C-level advisory. - alirezarezvani/cl...
github.com
🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23 ...
github.com
The open-source LLMOps platform: prompt playground, prompt management, LLM evaluation, and LLM observability all in one place. - Agenta-AI/agenta
github.com
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line ...