PromptMaster: Prompt Engineer

PromptMaster AI is a professional prompt engineering toolkit for developers, researchers, and power users who demand control over every layer of their AI workflow — from key storage to token efficiency. ENGINEER PROMPTS THAT ACTUALLY WORK Paste any raw prompt into Prompt Forensics and get a structured diagnosis: vague requirements, missing platform specs, undefined audience, ambiguous scope, tone gaps, and spelling errors — all flagged before you waste a single token. Then hand the findings to the Prompt Rewriter, which rebuilds your prompt into a production-grade structure with dedicated CONTEXT, TASK, CONSTRAINTS, OUTPUT_FORMAT, and TONE sections. Every rewrite is scored on specificity density, requirement completeness, parametric definition, and token efficiency — so you know exactly where the gain came from. REWOO: THE AGENTIC FRAMEWORK THAT PLANS BEFORE IT EXECUTES Most AI agents use ReAct — they call tools one at a time and wait for each result before deciding what to do next. PromptMaster AI ships ReWOO, a parallel agentic framework that maps every tool call upfront in a plan phase, then executes all of them simultaneously. The result: ~260 tokens per run versus ReAct's ~720, saving roughly 460 tokens and a 64% efficiency gain on every agentic task. The built-in Token Efficiency Benchmarker shows you the side-by-side ReAct vs ReWOO trajectory in real time so the savings are never abstract. BYOK — YOUR KEYS, YOUR CONTROL PromptMaster AI is a true BYOK AI app. Add your own API keys for OpenAI, Anthropic (Claude prompts), Google Gemini, or Groq. Keys are stored on-device with AES-256-GCM encryption — never sent to our servers, never shared. You pay the provider directly at cost. No middleman markup. Switch providers instantly from any screen. NO KEY? NO PROBLEM. Simulation Mode lets you explore every feature — prompt forensics, prompt rewriting, ReWOO agentic runs, and the token benchmarker — without entering a single API key. Simulated responses are schema-identical to live API responses, so the experience is identical whether you're evaluating the app or running production workloads. PRO TIER Unlock the full prompt optimizer toolkit with a Pro subscription. Monthly and annual plans available. Cancel any time. BUILT FOR PEOPLE WHO TAKE PROMPTS SERIOUSLY Whether you're crafting ChatGPT prompts for a content pipeline, building Claude prompts for a research workflow, or optimizing LLM tool calls for a production agent — PromptMaster AI gives you the diagnostics, the rewriter, and the agentic infrastructure to do it right. Download PromptMaster AI and start engineering prompts that perform.