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Prompt Engineering

Prompt Engineering (2026)

Prompt engineering tools for managing, optimizing, and versioning prompts and system instructions for LLMs.

5 tools

Prompt Engineering brings together the most relevant AI tools, MCP servers, and developer products for this topic on AgentIndex. It is designed to help you scan the landscape quickly before narrowing options by stars, licenses, freshness, and practical fit.

This page currently includes 5 tools in the category, making it useful for shortlisting open-source options, comparing popular projects, and building an initial evaluation set before deeper product testing.

NameTaglineCategoryStarsLicenseUpdated
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vibe-coding-prompt-template logo
vibe-coding-prompt-templateTrendingTemplates and workflow for generating PRDs, Tech Designs, and MVP and more using LLMs for AI IDEsPrompt Engineering★ 2.7kMIT2026-07-18
token-optimizer-mcp logo
token-optimizer-mcpHidden GemIntelligent token optimization for Claude Code - achieving 95%+ token reduction through caching, compression, and smart tool intelligencePrompt Engineering★ 444MIT2026-07-15
repoprompt-ce logo
repoprompt-ceHidden GemCommunity edition of RepoPrompt: a native macOS context engineering app for AI coding agents, with an MCP CLI.Prompt Engineering★ 817Apache-2.02026-07-19
claude-architect logo
claude-architectTrendingWorkflow Automation···Study materials, code examples, and practice scenarios for Anthropic's Claude Certified Architect: Foundations (CCA-F) certification exam. Covers all five exam domains: agentic architecture, MCP integration, Claude Code workflows, prompt engineering, and context management.Prompt Engineering★ 58MIT2026-07-14
cap-mcp-plugin logo
cap-mcp-pluginHidden GemAPI Integration···MCP (Model Context Protocol) server plugin for CAP NodeJSPrompt Engineering★ 62NOASSERTION2026-07-17