https://polis.sh/blog Polis is a synthetic audience testing tool built on the Model Context Protocol (MCP) that simulates realistic audience reactions to content before it is published. Its blog and documentation cover MCP integration, persona testing workflows, content optimization, and agent-native tooling. en-US Tue, 09 Jun 2026 21:01:55 GMT EdgeBlog https://polis.sh/blog/synthetic-audience-testing-how-ai-personas-replace-guesswork https://polis.sh/blog/synthetic-audience-testing-how-ai-personas-replace-guesswork Synthetic audience testing simulates audience reactions using AI personas before you publish. Learn how it works, when to use it, and how it compares to A/B testing and user research. Thu, 04 Jun 2026 00:39:20 GMT Jack Gardner Synthetic Audience Testing synthetic audience testing AI personas content testing MCP tools pre-publish validation