Marketplace
prompt-eng-toolkit
Installation
1
Add the marketplace
/plugin marketplace add RxChi1d/prompt-eng-toolkit2
Install plugins
/pluginRun these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.
Plugins
Plugin
prompt-eng-toolkit
Two skills (prompt-create, prompt-optimize) for engineering production single-turn LLM system prompts. Multi-provider (Gemini 3 / Claude 4.5+ / GPT-5) doc consensus, iterative API testing with theory-only fallback, before/after token comparison, built-in injection-defense fixtures.