DollhouseMCP 2.0, open-source MCP composable AI building blocks

Show HN: DollhouseMCP 2.0, open-source MCP composable AI building blocks

Based, DollhouseMCP 2.0, open-source MCP composable AI building blocks works in show hn launch.

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Hi, I'm Mick. I've been building this for the last 9 monthsDollhouseMCP 2.0 is an open-source MCP server for making and using composable building blocks for AI customization. You build elements as portable MD and YAML files, compose them into stacks, and activate the stacks in any MCP-compatible client.Element types that drive behavior and permissions:* Personas: behavioral profiles (how the AI sounds and acts)* Skills: discrete capabilities (what the AI can do)* Agents: goal-oriented, multi-step executors* Ensembles: composed stacks of the above* Plus templates for structured outputs and memories for persistent context.Two things I think are actually new here:1. Identity-based permissioning

Within the show hn launch space, the company focuses on its core offering rather than a broad product line.

Its current recorded stage is Show HN launch.

Website: dollhousemcp.com