# 18 Prompt Engineering tips and tools (all free)

18 Prompt Engineering resources, picked out of 6 saved Instagram reels and 12 liked tweets, from creators like @aitoolhub.co, @gregisenberg, @TheAIColony. 18 of them are free, freemium or open source.

## All 18

- [Prompt Engineering (Google Whitepaper)](https://xiry.app/resources/prompt-engineering-google-whitepaper-2086): A comprehensive guide to prompt engineering techniques and LLM parameters by Google. (Article or course, Free)
- [3 Rules for Realistic AI Video Generation (Kling)](https://xiry.app/resources/3-rules-for-realistic-ai-video-generation-kling): Prompt formula and best practices for realistic AI video generation (Tip, Free)
- [50+ Nano Banana Pro Prompt Library](https://xiry.app/resources/50-nano-banana-pro-prompt-library): Curated collection of 50+ tested prompts for Nano Banana Pro image generation (Prompt, Free)
- [AI Voice Receptionist Prompt Template](https://xiry.app/resources/ai-voice-receptionist-prompt-template): Prompt framework to build structured conversational scripts for voice agents. (Prompt, Free)
- [Anthropic Console Prompt Generator](https://xiry.app/resources/anthropic-console-prompt-generator): Turn rough task descriptions into structured, production-ready AI prompts automatically (Web app, Freemium)
- [awesome-nanobanana-pro](https://xiry.app/resources/awesome-nanobanana-pro): Curated repository of prompts and styles for the Gemini Nano Banana model (GitHub repo, Open source)
- [Cinematic Prompt Engineer for AI Video](https://xiry.app/resources/cinematic-prompt-engineer-for-ai-video): System prompt to convert rough concepts into detailed AI video prompts (Prompt, Free)
- [Google's 13 Principles for Prompting LLMs](https://xiry.app/resources/google-s-13-principles-for-prompting-llms): Thirteen practical rules for writing effective prompts, distilled from Google's guide (Framework, Free)
- [gpt-prompt-engineer](https://xiry.app/resources/gpt-prompt-engineer): Automate prompt creation, testing, and distillation between large and small models. (GitHub repo, Open source)
- [Hero Frame and Dolly Zoom-Out Prompts](https://xiry.app/resources/hero-frame-and-dolly-zoom-out-prompts): AI image and video prompts for a scroll-synced landing page hero (Prompt, Free)
- [How to Clone Your Speaking Style and Tone Using AI](https://xiry.app/resources/how-to-clone-your-speaking-style-and-tone-using-ai): Workflow to extract your voice and tone from videos using AI (Tip, Free)
- [JSON Context Profile Prompts for Veo 3 Commercials](https://xiry.app/resources/json-context-profile-prompts-for-veo-3-commercials): Structured JSON prompt templates for generating cinematic brand commercials in Veo 3 (Prompt, Free)
- [Meng To's WebGL and UI Animation Prompt Workflow](https://xiry.app/resources/meng-to-s-webgl-and-ui-animation-prompt-workflow): Two-step prompt workflow and prompt library for WebGL UI animations (Tip, Free)
- [Nano Banana Pro Mirror Selfie Prompt](https://xiry.app/resources/nano-banana-pro-mirror-selfie-prompt): Structured prompt template for generating realistic smartphone mirror selfies in Gemini (Prompt, Free)
- [Realistic Selfie Portrait JSON Prompt](https://xiry.app/resources/realistic-selfie-portrait-json-prompt): Structured JSON prompt template for generating photorealistic, candid selfie portraits (Prompt, Free)
- [stop-slop](https://xiry.app/resources/stop-slop): A skill file and prompt system for removing AI writing patterns (GitHub repo, Open source)
- [system\_prompts\_leaks](https://xiry.app/resources/system-prompts-leaks): Curated collection of leaked system prompts from major AI assistants and models. (GitHub repo, Open source)
- [Y2K Flash-Photo JSON Prompt for Gemini Nano Banana](https://xiry.app/resources/y2k-flash-photo-json-prompt-for-gemini-nano-banana): Structured JSON prompt template for Y2K direct-flash digital camera aesthetic images (Prompt, Free)

More topics in AI: [AI Prompts](https://xiry.app/topics/ai/ai-prompts.md), [AI Video Generation](https://xiry.app/topics/ai/ai-video-generation.md), [Image Generation](https://xiry.app/topics/ai/image-generation.md), [AI Agents](https://xiry.app/topics/ai/ai-agents.md), [Text to Speech](https://xiry.app/topics/ai/text-to-speech.md), [Workflow Automation](https://xiry.app/topics/ai/workflow-automation.md), [AI Agent Tools](https://xiry.app/topics/ai/ai-agent-tools.md), [Autonomous Agents](https://xiry.app/topics/ai/autonomous-agents.md), [3D Generation](https://xiry.app/topics/ai/3d-generation.md), [Video Repurposing](https://xiry.app/topics/ai/video-repurposing.md), [Voice AI](https://xiry.app/topics/ai/voice-ai.md), [Agent Frameworks](https://xiry.app/topics/ai/agent-frameworks.md), [AI Chatbots](https://xiry.app/topics/ai/ai-chatbots.md), [Transcription](https://xiry.app/topics/ai/transcription.md)

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