PullRepo

Daily radar for the fastest-growing AI tools & repos

Today's Prompt Engineering: Fastest-Growing Projects — April 21, 2026

Today's Prompt Engineering, we're seeing a surge in repositories focused on developing and refining prompts for AI coding agents, particularly those centered around Claude Code. Additionally, there's a growing interest in multimodal prompt engineering, with several projects exploring text-to-video and image-to-video capabilities. As the field continues to evolve, it's clear that effective prompt design is becoming increasingly crucial.

repowise-dev/claude-code-prompts has taken the top spot this week, boasting an impressive Growth Score of 51.70 and 949 stars. This repository offers independently authored prompt templates for AI coding agents, including system prompts, tool prompts, agent delegation, memory management, and multi-agent coordination, all informed by studying Claude Code. Its rapid growth can be attributed to the high demand for robust and effective prompts in the industry.

ShipWithAI/claude-code-mastery has also seen significant traction, with a Growth Score of 13.81 and 72 stars. This comprehensive free course covers 16 phases and 55 modules, providing an extensive learning resource for those looking to master Claude Code. Its high commit activity (89 in the past 30 days) suggests that the project is actively being developed and maintained.

ZeroLu/awesome-happy-horse has attracted attention with its community-curated prompts, news, benchmarks, and sample outputs for the Happy Horse model. With a Growth Score of 8.21 and 59 stars, this repository serves as a valuable resource hub for those working with the Happy Horse AI. Its growth can be attributed to the increasing popularity of the Happy Horse model.

TaewoooPark/NODEPROMPT is another notable project, focusing on spatial prompt engineering through interactive 3D concept graphs. With a Growth Score of 5.66 and 31 stars, this repository showcases an innovative approach to prompt design. Its growth is likely due to the novelty of its approach and the potential applications in various fields.

Josh-blythe/bordair-multimodal has gained attention with its open-source cross-modal and multimodal prompt injection test suite. Boasting a Growth Score of 4.50 and 33 stars, this project provides a comprehensive resource for testing and evaluating prompts across different modalities. Its growth can be attributed to the growing importance of multimodal prompt engineering.

ZeroLu/awesome-gpt-image offers a curated collection of top GPT Image 2 prompts and examples from leading creators on X. With a Growth Score of 4.21 and 28 stars, this repository serves as a valuable resource for those working with GPT Image. Its growth is likely due to the increasing popularity of GPT Image.

Leonxlnx/agentic-ai-prompt-research has seen steady growth, with a Growth Score of 3.70 and an impressive 2,326 stars. This project delves into research on agentic AI coding assistants, reconstructing prompt patterns, agent coordination, and security classification. Its growth can be attributed to the significance of its research findings in the field.

OuterSpacee/claude-emotion-prompting offers a research-backed prompting toolkit for Claude, grounded in Anthropic's 2026 emotion vectors paper. With a Growth Score of 2.33 and 60 stars, this repository provides valuable resources for those working with Claude. Its growth is likely due to the increasing interest in emotional intelligence in AI.

JonusNattapong/ClaudeCode-Learning rounds out our list, providing learning materials for prompt engineering focused on ClaudeCode. With a Growth Score of 1.52 and 28 stars, this repository serves as a useful resource for those looking to develop their skills in this area.
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