Insights on AI personas, writing style, and building character-driven agent experiences.
Settings, instructions and a free ready-made persona that make ChatGPT, Claude and Gemini push back on weak ideas instead of agreeing with everything.
Three ways to keep a persona consistent in ChatGPT, Claude and Gemini: custom instructions, a Project, or a free persona pack you paste in. Compared.
Why ChatGPT, Claude and Gemini ignore your custom instructions or drift in long chats, with fixes from the official docs and a free example you can copy.
Sable, Devon, and Riley are free writing personas for Claude, ChatGPT, and Gemini. This note says who each one is for and how to paste the pack in. Free.
Otis is the free code review persona for Claude, and the same pack works in ChatGPT and Gemini. Here is who it is for and how to install it. No paid tier.
When a free CastMyAgent pack is enough, and when you should write your own custom instructions. An honest comparison, with no paid tier on our side. Free.
What to compare before you pay for prompts: license, what is in the file, and who the persona is for. CastMyAgent packs are free, with no paid tier. MIT.
Six steps to give a custom GPT a personality in the ChatGPT builder: one job, a short brief, behaviors, format rules, hard cases, and preview testing.
Where to put a Claude persona prompt, how to structure it, and a free example you can adapt. The same text pack also works in ChatGPT and Gemini. No paid tier.
A persona fails when it only names a job. This note shows how habits and limits make one hold, with examples from the free CastMyAgent roster. No paid tier.
A system prompt sets a task. A persona sets judgment, habits, and limits. Here is the difference, and where a free CastMyAgent pack fits. No paid tier.
Five working styles an AI team actually needs, mapped to free CastMyAgent personas for Claude, ChatGPT, and Gemini. Smart is not one of the five. No paid tier.
You can cast a free persona instead of building an agent from scratch. The CastMyAgent packs work with Claude, ChatGPT, and Gemini and reply in text. Free.
A practical way to choose an AI persona for fit and consistency, not benchmark scores. CastMyAgent packs are free and work with Claude, ChatGPT, and Gemini.
The CastMyAgent blog covers free AI personas, system prompts, and when to cast a character instead of building an agent. Replies are text. No paid tier.
Why CastMyAgent is a roster of free personas instead of another agent builder. The packs work with Claude, ChatGPT, and Gemini, and reply in text. No paid tier.