100% Free Client-Side Utilities • Zero Server Tracking

AI System Prompt & Agent Persona Architect

Craft production-grade system prompts, agent personas, and .cursorrules with live variable injection, token counter, and 1-click export.

AI System Prompt & Persona Architect

Design rock-solid system instructions, .cursorrules, and AI agent personas with negative constraints and instant token count.

~285 Tokens

Select Architecture Preset:

Agent Name & Role Identity

Core Mission & Primary Directives

Domain Tech Stack & Standards

Strict Guardrails & Negative Constraints (Crucial)

Tone & Communication Style

Output Delivery Structure

Live Structured Prompt Output 1,240 chars • ~285 tokens

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